rtlanal.c (dead_or_set_regno_p): Ignore REG_DEAD notes after reload completes.

[gcc.git] / gcc / config / mips / mips.md

;;  Mips.md          Machine Description for MIPS based processors
;;  Contributed by   A. Lichnewsky, lich@inria.inria.fr
;;  Changes by       Michael Meissner, meissner@osf.org
;;  64 bit r4000 support by Ian Lance Taylor, ian@cygnus.com, and
;;  Brendan Eich, brendan@microunity.com.
;;  Copyright (C) 1989, 90-97, 1998 Free Software Foundation, Inc.

;; This file is part of GNU CC.

;; GNU CC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU CC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU CC; see the file COPYING.  If not, write to
;; the Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;; ??? Currently does not have define_function_unit support for the R8000.
;; Must include new entries for fmadd in addition to existing entries.

\f

;; ....................
;;
;;      Attributes
;;
;; ....................

;; Classification of each insn.
;; branch       conditional branch
;; jump         unconditional jump
;; call         unconditional call
;; load         load instruction(s)
;; store        store instruction(s)
;; move         data movement within same register set
;; xfer         transfer to/from coprocessor
;; hilo         transfer of hi/lo registers
;; arith        integer arithmetic instruction
;; darith       double precision integer arithmetic instructions
;; imul         integer multiply
;; idiv         integer divide
;; icmp         integer compare
;; fadd         floating point add/subtract
;; fmul         floating point multiply
;; fmadd        floating point multiply-add
;; fdiv         floating point divide
;; fabs         floating point absolute value
;; fneg         floating point negation
;; fcmp         floating point compare
;; fcvt         floating point convert
;; fsqrt        floating point square root
;; multi        multiword sequence (or user asm statements)
;; nop          no operation

(define_attr "type"
  "unknown,branch,jump,call,load,store,move,xfer,hilo,arith,darith,imul,idiv,icmp,fadd,fmul,fmadd,fdiv,fabs,fneg,fcmp,fcvt,fsqrt,multi,nop"
  (const_string "unknown"))

;; Main data type used by the insn
(define_attr "mode" "unknown,none,QI,HI,SI,DI,SF,DF,FPSW" (const_string "unknown"))

;; # instructions (4 bytes each)
(define_attr "length" "" (const_int 1))

;; whether or not an instruction has a mandatory delay slot
(define_attr "dslot" "no,yes"
  (if_then_else (ior (eq_attr "type" "branch,jump,call,xfer,hilo,fcmp")
                     (and (eq_attr "type" "load")
                          (and (eq (symbol_ref "mips_isa") (const_int 1))
                                   (eq (symbol_ref "mips16") (const_int 0)))))
                (const_string "yes")
                (const_string "no")))

;; Attribute describing the processor.  This attribute must match exactly
;; with the processor_type enumeration in mips.h.

;; Attribute describing the processor
;; (define_attr "cpu" "default,r3000,r6000,r4000"
;;   (const
;;    (cond [(eq (symbol_ref "mips_cpu") (symbol_ref "PROCESSOR_R3000"))   (const_string "r3000")
;;           (eq (symbol_ref "mips_cpu") (symbol_ref "PROCESSOR_R4000"))   (const_string "r4000")
;;           (eq (symbol_ref "mips_cpu") (symbol_ref "PROCESSOR_R6000"))   (const_string "r6000")]
;;          (const_string "default"))))

;; ??? Fix everything that tests this attribute.
(define_attr "cpu"
  "default,r3000,r3900,r6000,r4000,r4100,r4300,r4600,r4650,r5000,r8000"
  (const (symbol_ref "mips_cpu_attr")))

;; Attribute defining whether or not we can use the branch-likely instructions

(define_attr "branch_likely" "no,yes"
  (const
   (if_then_else (ne (symbol_ref "GENERATE_BRANCHLIKELY") (const_int 0))
                 (const_string "yes")
                 (const_string "no"))))


;; Describe a user's asm statement.
(define_asm_attributes
  [(set_attr "type" "multi")])

;; whether or not generating calls to position independent functions
(define_attr "abicalls" "no,yes"
  (const (symbol_ref "mips_abicalls_attr")))

\f

;; .........................
;;
;;      Delay slots, can't describe load/fcmp/xfer delay slots here
;;
;; .........................

(define_delay (and (eq_attr "type" "branch")
                   (eq (symbol_ref "mips16") (const_int 0)))
  [(and (eq_attr "dslot" "no") (eq_attr "length" "1"))
   (nil)
   (and (eq_attr "branch_likely" "yes") (and (eq_attr "dslot" "no") (eq_attr "length" "1")))])

(define_delay (eq_attr "type" "jump")
  [(and (eq_attr "dslot" "no") (eq_attr "length" "1"))
   (nil)
   (nil)])

(define_delay (and (eq_attr "type" "call") (eq_attr "abicalls" "no"))
  [(and (eq_attr "dslot" "no") (eq_attr "length" "1"))
   (nil)
   (nil)])

\f

;; .........................
;;
;;      Functional units
;;
;; .........................

; (define_function_unit NAME MULTIPLICITY SIMULTANEITY
;                       TEST READY-DELAY ISSUE-DELAY [CONFLICT-LIST])

;; Make the default case (PROCESSOR_DEFAULT) handle the worst case

(define_function_unit "memory" 1 0
  (and (eq_attr "type" "load")
       (eq_attr "cpu" "!r3000,r3900,r4600,r4650,r4100,r4300,r5000"))
  3 0)

(define_function_unit "memory" 1 0
  (and (eq_attr "type" "load")
       (eq_attr "cpu" "r3000,r3900,r4600,r4650,r4100,r4300,r5000"))
  2 0)

(define_function_unit "memory"   1 0 (eq_attr "type" "store") 1 0)

(define_function_unit "memory"   1 0 (eq_attr "type" "xfer") 2 0)

(define_function_unit "imuldiv"  1 0
  (eq_attr "type" "hilo")
  1 3)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (eq_attr "cpu" "!r3000,r3900,r4000,r4600,r4650,r4100,r4300,r5000"))
  17 17)

;; On them mips16, we want to stronly discourage a mult from appearing
;; after an mflo, since that requires explicit nop instructions.  We
;; do this by pretending that mflo ties up the function unit for long
;; enough that the scheduler will ignore load stalls and the like when
;; selecting instructions to between the two instructions.

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "hilo") (ne (symbol_ref "mips16") (const_int 0)))
  1 5)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul") (eq_attr "cpu" "r3000,r3900"))
  12 12)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul") (eq_attr "cpu" "r4000,r4600"))
  10 10)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul") (eq_attr "cpu" "r4650"))
  4 4)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (and (eq_attr "mode" "SI") (eq_attr "cpu" "r4100")))
  1 1)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r4100")))
  4 4)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (and (eq_attr "mode" "SI") (eq_attr "cpu" "r4300,r5000")))
  5 5)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r4300")))
  8 8)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "imul")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r5000")))
  9 9)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "idiv")
       (eq_attr "cpu" "!r3000,r3900,r4000,r4600,r4650,r4100,r4300,r5000"))
  38 38)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "idiv") (eq_attr "cpu" "r3000,r3900"))
  35 35)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "idiv") (eq_attr "cpu" "r4600"))
  42 42)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "idiv") (eq_attr "cpu" "r4650"))
  36 36)

(define_function_unit "imuldiv"  1 0
  (and (eq_attr "type" "idiv") (eq_attr "cpu" "r4000"))
  69 69)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "SI") (eq_attr "cpu" "r4100")))
  35 35)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r4100")))
  67 67)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "SI") (eq_attr "cpu" "r4300")))
  37 37)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r4300")))
  69 69)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "SI") (eq_attr "cpu" "r5000")))
  36 36)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "idiv")
       (and (eq_attr "mode" "DI") (eq_attr "cpu" "r5000")))
  68 68)

;; The R4300 does *NOT* have a separate Floating Point Unit, instead
;; the FP hardware is part of the normal ALU circuitry.  This means FP
;; instructions affect the pipe-line, and no functional unit
;; parallelism can occur on R4300 processors.  To force GCC into coding
;; for only a single functional unit, we force the R4300 FP
;; instructions to be processed in the "imuldiv" unit.

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fcmp") (eq_attr "cpu" "!r3000,r3900,r6000,r4300,r5000"))
  3 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fcmp") (eq_attr "cpu" "r3000,r3900,r6000"))
  2 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fcmp") (eq_attr "cpu" "r5000"))
  1 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fadd") (eq_attr "cpu" "!r3000,r3900,r6000,r4300"))
  4 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fadd") (eq_attr "cpu" "r3000,r3900"))
  2 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fadd") (eq_attr "cpu" "r6000"))
  3 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fabs,fneg")
       (eq_attr "cpu" "!r3000,r3900,r4600,r4650,r4300,r5000"))
  2 0)

(define_function_unit "adder" 1 1
  (and (eq_attr "type" "fabs,fneg") (eq_attr "cpu" "r3000,r3900,r4600,r4650,r5000"))
  1 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "SF")
            (eq_attr "cpu" "!r3000,r3900,r6000,r4600,r4650,r4300,r5000")))
  7 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r3000,r3900,r5000")))
  4 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r6000")))
  5 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r4600,r4650")))
  8 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "!r3000,r3900,r6000,r4300,r5000")))
  8 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r3000,r3900,r5000")))
  5 0)

(define_function_unit "mult" 1 1
  (and (eq_attr "type" "fmul")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r6000")))
  6 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "SF")
            (eq_attr "cpu" "!r3000,r3900,r6000,r4600,r4650,r4300,r5000")))
  23 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r3000,r3900")))
  12 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r6000")))
  15 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r4600,r4650")))
  32 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r5000")))
  21 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "DF")
            (eq_attr "cpu" "!r3000,r3900,r6000,r4600,r4650,r4300")))
  36 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r3000,r3900")))
  19 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r6000")))
  16 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fdiv")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r4600,r4650")))
  61 0)

;;; ??? Is this number right?
(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "!r4600,r4650,r4300,r5000")))
  54 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r4600,r4650")))
  31 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r5000")))
  21 0)

;;; ??? Is this number right?
(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "!r4600,r4650,r4300,r5000")))
  112 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r4600,r4650")))
  60 0)

(define_function_unit "divide" 1 1
  (and (eq_attr "type" "fsqrt")
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r5000")))
  36 0)

;; R4300 FP instruction classes treated as part of the "imuldiv"
;; functional unit:

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "fadd") (eq_attr "cpu" "r4300"))
  3 3)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "fcmp,fabs,fneg") (eq_attr "cpu" "r4300"))
  1 1)

(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "fmul") (and (eq_attr "mode" "SF") (eq_attr "cpu" "r4300")))
  5 5)
(define_function_unit "imuldiv" 1 0
  (and (eq_attr "type" "fmul") (and (eq_attr "mode" "DF") (eq_attr "cpu" "r4300")))
  8 8)

(define_function_unit "imuldiv" 1 0
  (and (and (eq_attr "type" "fdiv") (eq_attr "type" "fsqrt"))
       (and (eq_attr "mode" "SF") (eq_attr "cpu" "r4300")))
  29 29)
(define_function_unit "imuldiv" 1 0
  (and (and (eq_attr "type" "fdiv") (eq_attr "type" "fsqrt"))
       (and (eq_attr "mode" "DF") (eq_attr "cpu" "r4300")))
  58 58)
\f
;; The following functional units do not use the cpu type, and use
;; much less memory in genattrtab.c.

;; (define_function_unit "memory"   1 0 (eq_attr "type" "load")                                3 0)
;; (define_function_unit "memory"   1 0 (eq_attr "type" "store")                               1 0)
;;       
;; (define_function_unit "fp_comp"  1 0 (eq_attr "type" "fcmp")                                2 0)
;;       
;; (define_function_unit "transfer" 1 0 (eq_attr "type" "xfer")                                2 0)
;; (define_function_unit "transfer" 1 0 (eq_attr "type" "hilo")                                3 0)
;;   
;; (define_function_unit "imuldiv"  1 1 (eq_attr "type" "imul")                               17 0)
;; (define_function_unit "imuldiv"  1 1 (eq_attr "type" "idiv")                               38 0)
;;   
;; (define_function_unit "adder"    1 1 (eq_attr "type" "fadd")                                4 0)
;; (define_function_unit "adder"    1 1 (eq_attr "type" "fabs,fneg")                           2 0)
;;   
;; (define_function_unit "mult"     1 1 (and (eq_attr "type" "fmul") (eq_attr "mode" "SF"))    7 0)
;; (define_function_unit "mult"     1 1 (and (eq_attr "type" "fmul") (eq_attr "mode" "DF"))    8 0)
;;   
;; (define_function_unit "divide"   1 1 (and (eq_attr "type" "fdiv") (eq_attr "mode" "SF"))   23 0)
;; (define_function_unit "divide"   1 1 (and (eq_attr "type" "fdiv") (eq_attr "mode" "DF"))   36 0)
;; 
;; (define_function_unit "sqrt"     1 1 (and (eq_attr "type" "fsqrt") (eq_attr "mode" "SF"))  54 0)
;; (define_function_unit "sqrt"     1 1 (and (eq_attr "type" "fsqrt") (eq_attr "mode" "DF")) 112 0)

\f
;;
;;  ....................
;;
;;      ADDITION
;;
;;  ....................
;;

(define_insn "adddf3"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (plus:DF (match_operand:DF 1 "register_operand" "f")
                 (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "add.d\\t%0,%1,%2"
  [(set_attr "type"     "fadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "addsf3"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (plus:SF (match_operand:SF 1 "register_operand" "f")
                 (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "add.s\\t%0,%1,%2"
  [(set_attr "type"     "fadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_expand "addsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (plus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                 (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "
{
  /* The mips16 assembler handles -32768 correctly, and so does gas,
     but some other MIPS assemblers think that -32768 needs to be
     loaded into a register before it can be added in.  */
  if (! TARGET_MIPS16
      && ! TARGET_GAS
      && GET_CODE (operands[2]) == CONST_INT
      && INTVAL (operands[2]) == -32768)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "addsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (plus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                 (match_operand:SI 2 "arith_operand" "dI")))]
  "! TARGET_MIPS16
   && (TARGET_GAS
       || GET_CODE (operands[2]) != CONST_INT
       || INTVAL (operands[2]) != -32768)"
  "addu\\t%0,%z1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

;; For the mips16, we need to recognize stack pointer additions
;; explicitly, since we don't have a constraint for $sp.  These insns
;; will be generated by the save_restore_insns functions.

(define_insn ""
  [(set (reg:SI 29)
        (plus:SI (reg:SI 29)
                 (match_operand:SI 0 "small_int" "I")))]
  "TARGET_MIPS16"
  "addu\\t%$,%$,%0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_simm8_8" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (plus:SI (reg:SI 29)
                 (match_operand:SI 1 "small_int" "I")))]
  "TARGET_MIPS16"
  "addu\\t%0,%$,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 1 "m16_uimm8_4" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
        (plus:SI (match_operand:SI 1 "register_operand" "0,d,d")
                 (match_operand:SI 2 "arith_operand" "IQ,O,d")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[1]) != REG
       || REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER
       || M16_REG_P (REGNO (operands[1]))
       || REGNO (operands[1]) == ARG_POINTER_REGNUM
       || REGNO (operands[1]) == FRAME_POINTER_REGNUM
       || REGNO (operands[1]) == STACK_POINTER_REGNUM)
   && (GET_CODE (operands[2]) != REG
       || REGNO (operands[2]) >= FIRST_PSEUDO_REGISTER
       || M16_REG_P (REGNO (operands[2]))
       || REGNO (operands[2]) == ARG_POINTER_REGNUM
       || REGNO (operands[2]) == FRAME_POINTER_REGNUM
       || REGNO (operands[2]) == STACK_POINTER_REGNUM)"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"addu\\t%0,%2\";
  return \"addu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_simm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_simm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])


;; On the mips16, we can sometimes split an add of a constant which is
;; a 4 byte instruction into two adds which are both 2 byte
;; instructions.  There are two cases: one where we are adding a
;; constant plus a register to another register, and one where we are
;; simply adding a constant to a register.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (plus:SI (match_dup 0)
                 (match_operand:SI 1 "const_int_operand" "")))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) > 0x7f
        && INTVAL (operands[1]) <= 0x7f + 0x7f)
       || (INTVAL (operands[1]) < - 0x80
           && INTVAL (operands[1]) >= - 0x80 - 0x80))"
  [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 2)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val >= 0)
    {
      operands[1] = GEN_INT (0x7f);
      operands[2] = GEN_INT (val - 0x7f);
    }
  else
    {
      operands[1] = GEN_INT (- 0x80);
      operands[2] = GEN_INT (val + 0x80);
    }
}")

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (plus:SI (match_operand:SI 1 "register_operand" "")
                 (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))
   && REGNO (operands[0]) != REGNO (operands[1])
   && GET_CODE (operands[2]) == CONST_INT
   && ((INTVAL (operands[2]) > 0x7
        && INTVAL (operands[2]) <= 0x7 + 0x7f)
       || (INTVAL (operands[2]) < - 0x8
           && INTVAL (operands[2]) >= - 0x8 - 0x80))"
  [(set (match_dup 0) (plus:SI (match_dup 1) (match_dup 2)))
   (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 3)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[2]);

  if (val >= 0)
    {
      operands[2] = GEN_INT (0x7);
      operands[3] = GEN_INT (val - 0x7);
    }
  else
    {
      operands[2] = GEN_INT (- 0x8);
      operands[3] = GEN_INT (val + 0x8);
    }
}")

(define_expand "adddi3"
  [(parallel [(set (match_operand:DI 0 "register_operand" "")
                   (plus:DI (match_operand:DI 1 "se_register_operand" "")
                            (match_operand:DI 2 "se_arith_operand" "")))
              (clobber (match_dup 3))])]
  "TARGET_64BIT || (!TARGET_DEBUG_G_MODE && !TARGET_MIPS16)"
  "
{
  /* The mips16 assembler handles -32768 correctly, and so does gas,
     but some other MIPS assemblers think that -32768 needs to be
     loaded into a register before it can be added in.  */
  if (! TARGET_MIPS16
      && ! TARGET_GAS
      && GET_CODE (operands[2]) == CONST_INT
      && INTVAL (operands[2]) == -32768)
    operands[2] = force_reg (DImode, operands[2]);

  if (TARGET_64BIT)
    {
      emit_insn (gen_adddi3_internal_3 (operands[0], operands[1],
                                        operands[2]));
      DONE;
    }

  operands[3] = gen_reg_rtx (SImode);
}")

(define_insn "adddi3_internal_1"
  [(set (match_operand:DI 0 "register_operand" "=d,&d")
        (plus:DI (match_operand:DI 1 "register_operand" "0,d")
                 (match_operand:DI 2 "register_operand" "d,d")))
   (clobber (match_operand:SI 3 "register_operand" "=d,d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "*
{
  return (REGNO (operands[0]) == REGNO (operands[1])
          && REGNO (operands[0]) == REGNO (operands[2]))
    ? \"srl\\t%3,%L0,31\;sll\\t%M0,%M0,1\;sll\\t%L0,%L1,1\;addu\\t%M0,%M0,%3\"
    : \"addu\\t%L0,%L1,%L2\;sltu\\t%3,%L0,%L2\;addu\\t%M0,%M1,%M2\;addu\\t%M0,%M0,%3\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_operand:DI 1 "register_operand" "")
                 (match_operand:DI 2 "register_operand" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))
   && (REGNO (operands[0]) != REGNO (operands[1])
       || REGNO (operands[0]) != REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 0)
        (plus:SI (subreg:SI (match_dup 1) 0)
                 (subreg:SI (match_dup 2) 0)))

   (set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 0) 0)
                (subreg:SI (match_dup 2) 0)))

   (set (subreg:SI (match_dup 0) 1)
        (plus:SI (subreg:SI (match_dup 1) 1)
                 (subreg:SI (match_dup 2) 1)))

   (set (subreg:SI (match_dup 0) 1)
        (plus:SI (subreg:SI (match_dup 0) 1)
                 (match_dup 3)))]
  "")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_operand:DI 1 "register_operand" "")
                 (match_operand:DI 2 "register_operand" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))
   && (REGNO (operands[0]) != REGNO (operands[1])
       || REGNO (operands[0]) != REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 1)
        (plus:SI (subreg:SI (match_dup 1) 1)
                 (subreg:SI (match_dup 2) 1)))

   (set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 0) 1)
                (subreg:SI (match_dup 2) 1)))

   (set (subreg:SI (match_dup 0) 0)
        (plus:SI (subreg:SI (match_dup 1) 0)
                 (subreg:SI (match_dup 2) 0)))

   (set (subreg:SI (match_dup 0) 0)
        (plus:SI (subreg:SI (match_dup 0) 0)
                 (match_dup 3)))]
  "")

(define_insn "adddi3_internal_2"
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (plus:DI (match_operand:DI 1 "register_operand" "%d,%d,%d")
                 (match_operand:DI 2 "small_int" "P,J,N")))
   (clobber (match_operand:SI 3 "register_operand" "=d,d,d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && INTVAL (operands[2]) != -32768"
  "@
   addu\\t%L0,%L1,%2\;sltu\\t%3,%L0,%2\;addu\\t%M0,%M1,%3
   move\\t%L0,%L1\;move\\t%M0,%M1
   subu\\t%L0,%L1,%n2\;sltu\\t%3,%L0,%2\;subu\\t%M0,%M1,1\;addu\\t%M0,%M0,%3"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "3,2,4")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_operand:DI 1 "register_operand" "")
                 (match_operand:DI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && INTVAL (operands[2]) > 0"

  [(set (subreg:SI (match_dup 0) 0)
        (plus:SI (subreg:SI (match_dup 1) 0)
                 (match_dup 2)))

   (set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 0) 0)
                (match_dup 2)))

   (set (subreg:SI (match_dup 0) 1)
        (plus:SI (subreg:SI (match_dup 1) 1)
                 (match_dup 3)))]
  "")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_operand:DI 1 "register_operand" "")
                 (match_operand:DI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && INTVAL (operands[2]) > 0"

  [(set (subreg:SI (match_dup 0) 1)
        (plus:SI (subreg:SI (match_dup 1) 1)
                 (match_dup 2)))

   (set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 0) 1)
                (match_dup 2)))

   (set (subreg:SI (match_dup 0) 0)
        (plus:SI (subreg:SI (match_dup 1) 0)
                 (match_dup 3)))]
  "")

(define_insn "adddi3_internal_3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (plus:DI (match_operand:DI 1 "se_reg_or_0_operand" "dJ")
                 (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT
   && !TARGET_MIPS16
   && (TARGET_GAS
       || GET_CODE (operands[2]) != CONST_INT
       || INTVAL (operands[2]) != -32768)"
  "*
{
  return (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    ? \"dsubu\\t%0,%z1,%n2\"
    : \"daddu\\t%0,%z1,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

;; For the mips16, we need to recognize stack pointer additions
;; explicitly, since we don't have a constraint for $sp.  These insns
;; will be generated by the save_restore_insns functions.

(define_insn ""
  [(set (reg:DI 29)
        (plus:DI (reg:DI 29)
                 (match_operand:DI 0 "small_int" "I")))]
  "TARGET_MIPS16 && TARGET_64BIT"
  "daddu\\t%$,%$,%0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_simm8_8" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (plus:DI (reg:DI 29)
                 (match_operand:DI 1 "small_int" "I")))]
  "TARGET_MIPS16 && TARGET_64BIT"
  "daddu\\t%0,%$,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_uimm5_4" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (plus:DI (match_operand:DI 1 "register_operand" "0,d,d")
                 (match_operand:DI 2 "arith_operand" "IQ,O,d")))]
  "TARGET_MIPS16 && TARGET_64BIT
   && (GET_CODE (operands[1]) != REG
       || REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER
       || M16_REG_P (REGNO (operands[1]))
       || REGNO (operands[1]) == ARG_POINTER_REGNUM
       || REGNO (operands[1]) == FRAME_POINTER_REGNUM
       || REGNO (operands[1]) == STACK_POINTER_REGNUM)
   && (GET_CODE (operands[2]) != REG
       || REGNO (operands[2]) >= FIRST_PSEUDO_REGISTER
       || M16_REG_P (REGNO (operands[2]))
       || REGNO (operands[2]) == ARG_POINTER_REGNUM
       || REGNO (operands[2]) == FRAME_POINTER_REGNUM
       || REGNO (operands[2]) == STACK_POINTER_REGNUM)"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"daddu\\t%0,%2\";
  return \"daddu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_simm5_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_simm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])


;; On the mips16, we can sometimes split an add of a constant which is
;; a 4 byte instruction into two adds which are both 2 byte
;; instructions.  There are two cases: one where we are adding a
;; constant plus a register to another register, and one where we are
;; simply adding a constant to a register.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_dup 0)
                 (match_operand:DI 1 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) > 0xf
        && INTVAL (operands[1]) <= 0xf + 0xf)
       || (INTVAL (operands[1]) < - 0x10
           && INTVAL (operands[1]) >= - 0x10 - 0x10))"
  [(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (plus:DI (match_dup 0) (match_dup 2)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val >= 0)
    {
      operands[1] = GEN_INT (0xf);
      operands[2] = GEN_INT (val - 0xf);
    }
  else
    {
      operands[1] = GEN_INT (- 0x10);
      operands[2] = GEN_INT (val + 0x10);
    }
}")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (plus:DI (match_operand:DI 1 "register_operand" "")
                 (match_operand:DI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))
   && REGNO (operands[0]) != REGNO (operands[1])
   && GET_CODE (operands[2]) == CONST_INT
   && ((INTVAL (operands[2]) > 0x7
        && INTVAL (operands[2]) <= 0x7 + 0xf)
       || (INTVAL (operands[2]) < - 0x8
           && INTVAL (operands[2]) >= - 0x8 - 0x10))"
  [(set (match_dup 0) (plus:DI (match_dup 1) (match_dup 2)))
   (set (match_dup 0) (plus:DI (match_dup 0) (match_dup 3)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[2]);

  if (val >= 0)
    {
      operands[2] = GEN_INT (0x7);
      operands[3] = GEN_INT (val - 0x7);
    }
  else
    {
      operands[2] = GEN_INT (- 0x8);
      operands[3] = GEN_INT (val + 0x8);
    }
}")

(define_insn "addsi3_internal_2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (sign_extend:DI (plus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                                 (match_operand:SI 2 "arith_operand" "dI"))))]
  "TARGET_64BIT
   && !TARGET_MIPS16
   && (TARGET_GAS
       || GET_CODE (operands[2]) != CONST_INT
       || INTVAL (operands[2]) != -32768)"
  "*
{
  return (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    ? \"subu\\t%0,%z1,%n2\"
    : \"addu\\t%0,%z1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (sign_extend:DI (plus:SI (match_operand:SI 1 "register_operand" "0,d,d")
                                 (match_operand:SI 2 "arith_operand" "I,O,d"))))]
  "TARGET_MIPS16 && TARGET_64BIT"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"addu\\t%0,%2\";
  return \"addu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_simm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_simm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])

\f
;;
;;  ....................
;;
;;      SUBTRACTION
;;
;;  ....................
;;

(define_insn "subdf3"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (minus:DF (match_operand:DF 1 "register_operand" "f")
                  (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "sub.d\\t%0,%1,%2"
  [(set_attr "type"     "fadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "subsf3"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (minus:SF (match_operand:SF 1 "register_operand" "f")
                  (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "sub.s\\t%0,%1,%2"
  [(set_attr "type"     "fadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_expand "subsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (minus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                  (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "
{
  if (GET_CODE (operands[2]) == CONST_INT
      && (INTVAL (operands[2]) == -32768
          || (TARGET_MIPS16
              && INTVAL (operands[2]) == -0x4000)))
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "subsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (minus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                  (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "subu\\t%0,%z1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

;; For the mips16, we need to recognize stack pointer subtractions
;; explicitly, since we don't have a constraint for $sp.  These insns
;; will be generated by the save_restore_insns functions.

(define_insn ""
  [(set (reg:SI 29)
        (minus:SI (reg:SI 29)
                  (match_operand:SI 0 "small_int" "I")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "addu\\t%$,%$,%n0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_nsimm8_8" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (minus:SI (reg:SI 29)
                  (match_operand:SI 1 "small_int" "I")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "addu\\t%0,%$,%n1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 1 "m16_nuimm8_4" "")
                                      (const_int 1)
                                      (const_int 2)))])


(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
        (minus:SI (match_operand:SI 1 "register_operand" "0,d,d")
                  (match_operand:SI 2 "arith_operand" "I,O,d")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT
       || (INTVAL (operands[2]) != -32768 && INTVAL (operands[2]) != -0x4000))"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"subu\\t%0,%2\";
  return \"subu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_nsimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_nsimm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])

;; On the mips16, we can sometimes split an subtract of a constant
;; which is a 4 byte instruction into two adds which are both 2 byte
;; instructions.  There are two cases: one where we are setting a
;; register to a register minus a constant, and one where we are
;; simply subtracting a constant from a register.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (minus:SI (match_dup 0)
                  (match_operand:SI 1 "const_int_operand" "")))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) > 0x80
        && INTVAL (operands[1]) <= 0x80 + 0x80)
       || (INTVAL (operands[1]) < - 0x7f
           && INTVAL (operands[1]) >= - 0x7f - 0x7f))"
  [(set (match_dup 0) (minus:SI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (minus:SI (match_dup 0) (match_dup 2)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val >= 0)
    {
      operands[1] = GEN_INT (0x80);
      operands[2] = GEN_INT (val - 0x80);
    }
  else
    {
      operands[1] = GEN_INT (- 0x7f);
      operands[2] = GEN_INT (val + 0x7f);
    }
}")

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (minus:SI (match_operand:SI 1 "register_operand" "")
                  (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))
   && REGNO (operands[0]) != REGNO (operands[1])
   && GET_CODE (operands[2]) == CONST_INT
   && ((INTVAL (operands[2]) > 0x8
        && INTVAL (operands[2]) <= 0x8 + 0x80)
       || (INTVAL (operands[2]) < - 0x7
           && INTVAL (operands[2]) >= - 0x7 - 0x7f))"
  [(set (match_dup 0) (minus:SI (match_dup 1) (match_dup 2)))
   (set (match_dup 0) (minus:SI (match_dup 0) (match_dup 3)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[2]);

  if (val >= 0)
    {
      operands[2] = GEN_INT (0x8);
      operands[3] = GEN_INT (val - 0x8);
    }
  else
    {
      operands[2] = GEN_INT (- 0x7);
      operands[3] = GEN_INT (val + 0x7);
    }
}")

(define_expand "subdi3"
  [(parallel [(set (match_operand:DI 0 "register_operand" "=d")
                   (minus:DI (match_operand:DI 1 "se_register_operand" "d")
                             (match_operand:DI 2 "se_register_operand" "d")))
              (clobber (match_dup 3))])]
  "TARGET_64BIT || (!TARGET_DEBUG_G_MODE && !TARGET_MIPS16)"
  "
{
  if (TARGET_64BIT)
    {
      emit_insn (gen_subdi3_internal_3 (operands[0], operands[1],
                                        operands[2]));
      DONE;
    }

  operands[3] = gen_reg_rtx (SImode);
}")

(define_insn "subdi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (minus:DI (match_operand:DI 1 "register_operand" "d")
                  (match_operand:DI 2 "register_operand" "d")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "sltu\\t%3,%L1,%L2\;subu\\t%L0,%L1,%L2\;subu\\t%M0,%M1,%M2\;subu\\t%M0,%M0,%3"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_operand:DI 1 "register_operand" "")
                  (match_operand:DI 2 "register_operand" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 1) 0)
                (subreg:SI (match_dup 2) 0)))

   (set (subreg:SI (match_dup 0) 0)
        (minus:SI (subreg:SI (match_dup 1) 0)
                  (subreg:SI (match_dup 2) 0)))

   (set (subreg:SI (match_dup 0) 1)
        (minus:SI (subreg:SI (match_dup 1) 1)
                  (subreg:SI (match_dup 2) 1)))

   (set (subreg:SI (match_dup 0) 1)
        (minus:SI (subreg:SI (match_dup 0) 1)
                  (match_dup 3)))]
  "")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_operand:DI 1 "register_operand" "")
                  (match_operand:DI 2 "register_operand" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 1) 1)
                (subreg:SI (match_dup 2) 1)))

   (set (subreg:SI (match_dup 0) 1)
        (minus:SI (subreg:SI (match_dup 1) 1)
                  (subreg:SI (match_dup 2) 1)))

   (set (subreg:SI (match_dup 0) 0)
        (minus:SI (subreg:SI (match_dup 1) 0)
                  (subreg:SI (match_dup 2) 0)))

   (set (subreg:SI (match_dup 0) 0)
        (minus:SI (subreg:SI (match_dup 0) 0)
                  (match_dup 3)))]
  "")

(define_insn "subdi3_internal_2"
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (minus:DI (match_operand:DI 1 "register_operand" "d,d,d")
                  (match_operand:DI 2 "small_int" "P,J,N")))
   (clobber (match_operand:SI 3 "register_operand" "=d,d,d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && INTVAL (operands[2]) != -32768"
  "@
   sltu\\t%3,%L1,%2\;subu\\t%L0,%L1,%2\;subu\\t%M0,%M1,%3
   move\\t%L0,%L1\;move\\t%M0,%M1
   sltu\\t%3,%L1,%2\;subu\\t%L0,%L1,%2\;subu\\t%M0,%M1,1\;subu\\t%M0,%M0,%3"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "3,2,4")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_operand:DI 1 "register_operand" "")
                  (match_operand:DI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && INTVAL (operands[2]) > 0"

  [(set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 1) 0)
                (match_dup 2)))

   (set (subreg:SI (match_dup 0) 0)
        (minus:SI (subreg:SI (match_dup 1) 0)
                  (match_dup 2)))

   (set (subreg:SI (match_dup 0) 1)
        (minus:SI (subreg:SI (match_dup 1) 1)
                  (match_dup 3)))]
  "")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_operand:DI 1 "register_operand" "")
                  (match_operand:DI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && INTVAL (operands[2]) > 0"

  [(set (match_dup 3)
        (ltu:SI (subreg:SI (match_dup 1) 1)
                (match_dup 2)))

   (set (subreg:SI (match_dup 0) 1)
        (minus:SI (subreg:SI (match_dup 1) 1)
                  (match_dup 2)))

   (set (subreg:SI (match_dup 0) 0)
        (minus:SI (subreg:SI (match_dup 1) 0)
                  (match_dup 3)))]
  "")

(define_insn "subdi3_internal_3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (minus:DI (match_operand:DI 1 "se_reg_or_0_operand" "dJ")
                  (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "*
{
  return (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    ? \"daddu\\t%0,%z1,%n2\"
    : \"dsubu\\t%0,%z1,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

;; For the mips16, we need to recognize stack pointer subtractions
;; explicitly, since we don't have a constraint for $sp.  These insns
;; will be generated by the save_restore_insns functions.

(define_insn ""
  [(set (reg:DI 29)
        (minus:DI (reg:DI 29)
                  (match_operand:DI 0 "small_int" "I")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "daddu\\t%$,%$,%n0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_nsimm8_8" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (minus:DI (reg:DI 29)
                  (match_operand:DI 1 "small_int" "I")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "daddu\\t%0,%$,%n1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 0 "m16_nuimm5_4" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (minus:DI (match_operand:DI 1 "register_operand" "0,d,d")
                  (match_operand:DI 2 "arith_operand" "I,O,d")))]
  "TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT
       || (INTVAL (operands[2]) != -32768 && INTVAL (operands[2]) != -0x4000))"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"dsubu\\t%0,%2\";
  return \"dsubu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_nsimm5_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_nsimm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])

;; On the mips16, we can sometimes split an add of a constant which is
;; a 4 byte instruction into two adds which are both 2 byte
;; instructions.  There are two cases: one where we are adding a
;; constant plus a register to another register, and one where we are
;; simply adding a constant to a register.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_dup 0)
                  (match_operand:DI 1 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) > 0x10
        && INTVAL (operands[1]) <= 0x10 + 0x10)
       || (INTVAL (operands[1]) < - 0xf
           && INTVAL (operands[1]) >= - 0xf - 0xf))"
  [(set (match_dup 0) (minus:DI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (minus:DI (match_dup 0) (match_dup 2)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val >= 0)
    {
      operands[1] = GEN_INT (0xf);
      operands[2] = GEN_INT (val - 0xf);
    }
  else
    {
      operands[1] = GEN_INT (- 0x10);
      operands[2] = GEN_INT (val + 0x10);
    }
}")

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (minus:DI (match_operand:DI 1 "register_operand" "")
                  (match_operand:DI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))
   && REGNO (operands[0]) != REGNO (operands[1])
   && GET_CODE (operands[2]) == CONST_INT
   && ((INTVAL (operands[2]) > 0x8
        && INTVAL (operands[2]) <= 0x8 + 0x10)
       || (INTVAL (operands[2]) < - 0x7
           && INTVAL (operands[2]) >= - 0x7 - 0xf))"
  [(set (match_dup 0) (minus:DI (match_dup 1) (match_dup 2)))
   (set (match_dup 0) (minus:DI (match_dup 0) (match_dup 3)))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[2]);

  if (val >= 0)
    {
      operands[2] = GEN_INT (0x8);
      operands[3] = GEN_INT (val - 0x8);
    }
  else
    {
      operands[2] = GEN_INT (- 0x7);
      operands[3] = GEN_INT (val + 0x7);
    }
}")

(define_insn "subsi3_internal_2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (sign_extend:DI (minus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
                                  (match_operand:SI 2 "arith_operand" "dI"))))]
  "TARGET_64BIT && !TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != -32768)"
  "*
{
  return (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    ? \"addu\\t%0,%z1,%n2\"
    : \"subu\\t%0,%z1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (sign_extend:DI (minus:SI (match_operand:SI 1 "register_operand" "0,d,d")
                                  (match_operand:SI 2 "arith_operand" "I,O,d"))))]
  "TARGET_64BIT && TARGET_MIPS16
   && (GET_CODE (operands[2]) != CONST_INT
       || (INTVAL (operands[2]) != -32768 && INTVAL (operands[2]) != -0x4000))"
  "*
{
  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"subu\\t%0,%2\";
  return \"subu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_nsimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 2 "m16_nsimm4_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])
  

\f
;;
;;  ....................
;;
;;      MULTIPLICATION
;;
;;  ....................
;;

;; Early Vr4300 silicon has a CPU bug where multiplies with certain
;; operands may corrupt immediately following multiplies. This is a
;; simple fix to insert NOPs.

(define_expand "muldf3"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (mult:DF (match_operand:DF 1 "register_operand" "f")
                 (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "
{
  if (mips_cpu != PROCESSOR_R4300)
    emit_insn (gen_muldf3_internal (operands[0], operands[1], operands[2]));
  else
    emit_insn (gen_muldf3_r4300 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_insn "muldf3_internal"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (mult:DF (match_operand:DF 1 "register_operand" "f")
                 (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && mips_cpu != PROCESSOR_R4300"
  "mul.d\\t%0,%1,%2"
  [(set_attr "type"     "fmul")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "muldf3_r4300"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (mult:DF (match_operand:DF 1 "register_operand" "f")
                 (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && mips_cpu == PROCESSOR_R4300"
  "*
{
  output_asm_insn (\"mul.d\\t%0,%1,%2\", operands);
  if (TARGET_4300_MUL_FIX)
    output_asm_insn (\"nop\", operands);
  return \"\";
}"
  [(set_attr "type"     "fmul")
   (set_attr "mode"     "DF")
   (set_attr "length"   "2")])  ;; mul.d + nop

(define_expand "mulsf3"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (mult:SF (match_operand:SF 1 "register_operand" "f")
                 (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "
{
  if (mips_cpu != PROCESSOR_R4300)
    emit_insn( gen_mulsf3_internal (operands[0], operands[1], operands[2]));
  else
    emit_insn( gen_mulsf3_r4300 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_insn "mulsf3_internal"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (mult:SF (match_operand:SF 1 "register_operand" "f")
                 (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && mips_cpu != PROCESSOR_R4300"
  "mul.s\\t%0,%1,%2"
  [(set_attr "type"     "fmul")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn "mulsf3_r4300"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (mult:SF (match_operand:SF 1 "register_operand" "f")
                 (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && mips_cpu == PROCESSOR_R4300"
  "*
{
  output_asm_insn (\"mul.s\\t%0,%1,%2\", operands);
  if (TARGET_4300_MUL_FIX)
    output_asm_insn (\"nop\", operands);
  return \"\";
}"
  [(set_attr "type"     "fmul")
   (set_attr "mode"     "SF")
   (set_attr "length"   "2")])  ;; mul.s + nop

;; ??? The R4000 (only) has a cpu bug.  If a double-word shift executes while
;; a multiply is in progress, it may give an incorrect result.  Avoid
;; this by keeping the mflo with the mult on the R4000.

(define_expand "mulsi3"
  [(set (match_operand:SI 0 "register_operand" "=l")
        (mult:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=a"))]
  ""
  "
{
  if (GENERATE_MULT3)
    emit_insn (gen_mulsi3_mult3 (operands[0], operands[1], operands[2]));
  else if (TARGET_MAD)
    emit_insn (gen_mulsi3_r4650 (operands[0], operands[1], operands[2]));
  else if (mips_cpu != PROCESSOR_R4000 || TARGET_MIPS16)
    emit_insn (gen_mulsi3_internal (operands[0], operands[1], operands[2]));
  else
    emit_insn (gen_mulsi3_r4000 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_insn "mulsi3_mult3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (mult:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=a"))]
  "GENERATE_MULT3"
  "mult\\t%0,%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "mulsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=l")
        (mult:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=a"))]
  "mips_cpu != PROCESSOR_R4000 || TARGET_MIPS16"
  "mult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "mulsi3_r4000"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (mult:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=a"))]
  "mips_cpu == PROCESSOR_R4000 && !TARGET_MIPS16"
  "*
{
  rtx xoperands[10];

  xoperands[0] = operands[0];
  xoperands[1] = gen_rtx (REG, SImode, LO_REGNUM);

  output_asm_insn (\"mult\\t%1,%2\", operands);
  output_asm_insn (mips_move_1word (xoperands, insn, FALSE), xoperands);
  return \"\";
}"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "3")])          ;; mult + mflo + delay

(define_insn "mulsi3_r4650"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (mult:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=a"))]
  "TARGET_MAD"
  "mul\\t%0,%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_expand "muldi3"
  [(set (match_operand:DI 0 "register_operand" "=l")
        (mult:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "register_operand" "d")))
   (clobber (match_scratch:DI 3 "=h"))
   (clobber (match_scratch:DI 4 "=a"))]
  "TARGET_64BIT"
  "
{
  if (GENERATE_MULT3 || mips_cpu == PROCESSOR_R4000 || TARGET_MIPS16)
    emit_insn (gen_muldi3_internal2 (operands[0], operands[1], operands[2]));
  else
    emit_insn (gen_muldi3_internal (operands[0], operands[1], operands[2]));
  DONE;
}")

;; Don't accept both operands using se_register_operand, because if
;; both operands are sign extended we would prefer to use mult in the
;; mulsidi3 pattern.  Commutativity should permit either operand to be
;; sign extended.

(define_insn "muldi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=l")
        (mult:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "register_operand" "d")))
   (clobber (match_scratch:DI 3 "=h"))
   (clobber (match_scratch:DI 4 "=a"))]
  "TARGET_64BIT && mips_cpu != PROCESSOR_R4000 && !TARGET_MIPS16"
  "dmult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "muldi3_internal2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (mult:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "register_operand" "d")))
   (clobber (match_scratch:DI 3 "=h"))
   (clobber (match_scratch:DI 4 "=l"))
   (clobber (match_scratch:DI 5 "=a"))]
  "TARGET_64BIT && (GENERATE_MULT3 || mips_cpu == PROCESSOR_R4000 || TARGET_MIPS16)"
  "*
{
  if (GENERATE_MULT3)
    output_asm_insn (\"dmult\\t%0,%1,%2\", operands);
  else 
    {
    rtx xoperands[10];

    xoperands[0] = operands[0];
    xoperands[1] = gen_rtx (REG, DImode, LO_REGNUM);

    output_asm_insn (\"dmult\\t%1,%2\", operands);
    output_asm_insn (mips_move_1word (xoperands, insn, FALSE), xoperands);
    }
  return \"\";
}"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ne (symbol_ref "GENERATE_MULT3") (const_int 0))
                       (const_int 1)
                       (const_int 3)))])        ;; mult + mflo + delay

;; ??? We could define a mulditi3 pattern when TARGET_64BIT.

(define_expand "mulsidi3"
  [(set (match_operand:DI 0 "register_operand" "=x")
        (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (sign_extend:DI (match_operand:SI 2 "register_operand" "d"))))]
  ""
  "
{
  if (TARGET_64BIT)
    emit_insn (gen_mulsidi3_64bit (operands[0], operands[1], operands[2]));
  else
    emit_insn (gen_mulsidi3_internal (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_insn "mulsidi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=x")
        (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (sign_extend:DI (match_operand:SI 2 "register_operand" "d"))))
   (clobber (match_scratch:SI 3 "=a"))]
  "!TARGET_64BIT"
  "mult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "mulsidi3_64bit"
  [(set (match_operand:DI 0 "register_operand" "=a")
        (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (sign_extend:DI (match_operand:SI 2 "register_operand" "d"))))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))]
  "TARGET_64BIT"
  "mult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "smulsi3_highpart"
  [(set (match_operand:SI 0 "register_operand" "=h")
        (truncate:SI
         (lshiftrt:DI (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "d"))
                               (sign_extend:DI (match_operand:SI 2 "register_operand" "d")))
                      (const_int 32))))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=a"))]
  ""
  "mult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_expand "umulsidi3"
  [(set (match_operand:DI 0 "register_operand" "=x")
        (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (zero_extend:DI (match_operand:SI 2 "register_operand" "d"))))]
  ""
  "
{
  if (TARGET_64BIT)
    emit_insn (gen_umulsidi3_64bit (operands[0], operands[1], operands[2]));
  else
    emit_insn (gen_umulsidi3_internal (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_insn "umulsidi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=x")
        (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (zero_extend:DI (match_operand:SI 2 "register_operand" "d"))))
   (clobber (match_scratch:SI 3 "=a"))]
  "!TARGET_64BIT"
  "multu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "umulsidi3_64bit"
  [(set (match_operand:DI 0 "register_operand" "=a")
        (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "d"))
                 (zero_extend:DI (match_operand:SI 2 "register_operand" "d"))))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))]
  "TARGET_64BIT"
  "multu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "umulsi3_highpart"
  [(set (match_operand:SI 0 "register_operand" "=h")
        (truncate:SI
         (lshiftrt:DI (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "d"))
                               (zero_extend:DI (match_operand:SI 2 "register_operand" "d")))
                      (const_int 32))))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=a"))]
  ""
  "multu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "smuldi3_highpart"
  [(set (match_operand:DI 0 "register_operand" "=h")
        (truncate:DI
         (lshiftrt:TI (mult:TI (sign_extend:TI (match_operand:DI 1 "se_register_operand" "d"))
                               (sign_extend:TI (match_operand:DI 2 "se_register_operand" "d")))
                      (const_int 64))))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=a"))]
  "TARGET_64BIT"
  "dmult\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "umuldi3_highpart"
  [(set (match_operand:DI 0 "register_operand" "=h")
        (truncate:DI
         (lshiftrt:TI (mult:TI (zero_extend:TI (match_operand:DI 1 "se_register_operand" "d"))
                               (zero_extend:TI (match_operand:DI 2 "se_register_operand" "d")))
                      (const_int 64))))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=a"))]
  "TARGET_64BIT"
  "dmultu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

;; The R4650 supports a 32 bit multiply/ 64 bit accumulate
;; instruction.  The HI/LO registers are used as a 64 bit accumulator.

(define_insn "madsi"
  [(set (match_operand:SI 0 "register_operand" "+l")
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d")
                          (match_operand:SI 2 "register_operand" "d"))
                 (match_dup 0)))
   (clobber (match_scratch:SI 3 "=h"))
   (clobber (match_scratch:SI 4 "=a"))]
  "TARGET_MAD || GENERATE_MADD"
  "*
{
  if (TARGET_MAD)
    return \"mad\\t%1,%2\";
  else
    return \"madd\\t%1,%2\";
}"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "maddi"
  [(set (match_operand:DI 0 "register_operand" "+x")
        (plus:DI (mult:DI (sign_extend:DI
                           (match_operand:SI 1 "register_operand" "d"))
                          (sign_extend:DI
                           (match_operand:SI 2 "register_operand" "d")))
                 (match_dup 0)))
   (clobber (match_scratch:SI 3 "=a"))]
  "TARGET_MAD && ! TARGET_64BIT"
  "mad\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "maddi_64bit"
  [(set (match_operand:DI 0 "register_operand" "+a")
        (plus:DI (mult:DI (sign_extend:DI
                           (match_operand:SI 1 "register_operand" "d"))
                          (sign_extend:DI
                           (match_operand:SI 2 "register_operand" "d")))
                 (match_dup 0)))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))]
  "TARGET_MAD && TARGET_64BIT"
  "mad\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "umaddi"
  [(set (match_operand:DI 0 "register_operand" "+x")
        (plus:DI (mult:DI (zero_extend:DI
                           (match_operand:SI 1 "register_operand" "d"))
                          (zero_extend:DI
                           (match_operand:SI 2 "register_operand" "d")))
                 (match_dup 0)))
   (clobber (match_scratch:SI 3 "=a"))]
  "TARGET_MAD && ! TARGET_64BIT"
  "madu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "umaddi_64bit"
  [(set (match_operand:DI 0 "register_operand" "+a")
        (plus:DI (mult:DI (zero_extend:DI
                           (match_operand:SI 1 "register_operand" "d"))
                          (zero_extend:DI
                           (match_operand:SI 2 "register_operand" "d")))
                 (match_dup 0)))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))]
  "TARGET_MAD && TARGET_64BIT"
  "madu\\t%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "madd3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d")
                          (match_operand:SI 2 "register_operand" "d"))
                 (match_operand:SI 3 "register_operand" "l")))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "GENERATE_MADD"
  "madd\\t%0,%1,%2"
  [(set_attr "type"     "imul")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

;; Floating point multiply accumulate instructions.

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (plus:DF (mult:DF (match_operand:DF 1 "register_operand" "f")
                          (match_operand:DF 2 "register_operand" "f"))
                 (match_operand:DF 3 "register_operand" "f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "madd.d\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (plus:SF (mult:SF (match_operand:SF 1 "register_operand" "f")
                          (match_operand:SF 2 "register_operand" "f"))
                 (match_operand:SF 3 "register_operand" "f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "madd.s\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (minus:DF (mult:DF (match_operand:DF 1 "register_operand" "f")
                           (match_operand:DF 2 "register_operand" "f"))
                  (match_operand:DF 3 "register_operand" "f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "msub.d\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (minus:SF (mult:SF (match_operand:SF 1 "register_operand" "f")
                           (match_operand:SF 2 "register_operand" "f"))
                  (match_operand:SF 3 "register_operand" "f")))]
                  
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "msub.s\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (neg:DF (plus:DF (mult:DF (match_operand:DF 1 "register_operand" "f")
                                  (match_operand:DF 2 "register_operand" "f"))
                         (match_operand:DF 3 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "nmadd.d\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (neg:SF (plus:SF (mult:SF (match_operand:SF 1 "register_operand" "f")
                                  (match_operand:SF 2 "register_operand" "f"))
                         (match_operand:SF 3 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "nmadd.s\\t%0,%3,%1,%2"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (minus:DF (match_operand:DF 1 "register_operand" "f")
                  (mult:DF (match_operand:DF 2 "register_operand" "f")
                           (match_operand:DF 3 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "nmsub.d\\t%0,%1,%2,%3"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (minus:SF (match_operand:SF 1 "register_operand" "f")
                  (mult:SF (match_operand:SF 2 "register_operand" "f")
                           (match_operand:SF 3 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "nmsub.s\\t%0,%1,%2,%3"
  [(set_attr "type"     "fmadd")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])
\f
;;
;;  ....................
;;
;;      DIVISION and REMAINDER
;;
;;  ....................
;;

(define_insn "divdf3"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (div:DF (match_operand:DF 1 "register_operand" "f")
                (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "div.d\\t%0,%1,%2"
  [(set_attr "type"     "fdiv")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "divsf3"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (div:SF (match_operand:SF 1 "register_operand" "f")
                (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "div.s\\t%0,%1,%2"
  [(set_attr "type"     "fdiv")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (div:DF (match_operand:DF 1 "const_float_1_operand" "")
                (match_operand:DF 2 "register_operand" "f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && flag_fast_math"
  "recip.d\\t%0,%2"
  [(set_attr "type"     "fdiv")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
                (match_operand:SF 2 "register_operand" "f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && flag_fast_math"
  "recip.s\\t%0,%2"
  [(set_attr "type"     "fdiv")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

;; If optimizing, prefer the divmod functions over separate div and
;; mod functions, since this will allow using one instruction for both
;; the quotient and remainder.  At present, the divmod is not moved out
;; of loops if it is constant within the loop, so allow -mdebugc to
;; use the old method of doing things.

;; 64 is the multiply/divide hi register
;; 65 is the multiply/divide lo register

;; ??? We can't accept constants here, because the MIPS assembler will replace
;; a divide by power of 2 with a shift, and then the remainder is no longer
;; available.

(define_insn "divmodsi4"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (div:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "register_operand" "d")))
   (set (match_operand:SI 3 "register_operand" "=d")
        (mod:SI (match_dup 1)
                (match_dup 2)))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "optimize"
  "*
{
  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"div\\t%0,%1,%2\";

  if (find_reg_note (insn, REG_UNUSED, operands[0]))
    return \"rem\\t%3,%1,%2\";

  return \"div\\t%0,%1,%2\;mfhi\\t%3\";
}"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "14")])         ;; various tests for dividing by 0 and such

(define_insn "divmoddi4"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (div:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))
   (set (match_operand:DI 3 "register_operand" "=d")
        (mod:DI (match_dup 1)
                (match_dup 2)))
   (clobber (match_scratch:DI 4 "=l"))
   (clobber (match_scratch:DI 5 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && optimize"
  "*
{
  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"ddiv\\t%0,%1,%2\";

  if (find_reg_note (insn, REG_UNUSED, operands[0]))
    return \"drem\\t%3,%1,%2\";

  return \"ddiv\\t%0,%1,%2\;mfhi\\t%3\";
}"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "15")])         ;; various tests for dividing by 0 and such

(define_insn "udivmodsi4"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (udiv:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "register_operand" "d")))
   (set (match_operand:SI 3 "register_operand" "=d")
        (umod:SI (match_dup 1)
                 (match_dup 2)))
   (clobber (match_scratch:SI 4 "=l"))
   (clobber (match_scratch:SI 5 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "optimize"
  "*
{
  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"divu\\t%0,%1,%2\";

  if (find_reg_note (insn, REG_UNUSED, operands[0]))
    return \"remu\\t%3,%1,%2\";

  return \"divu\\t%0,%1,%2\;mfhi\\t%3\";
}"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "8")])          ;; various tests for dividing by 0 and such

(define_insn "udivmoddi4"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (udiv:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "se_register_operand" "d")))
   (set (match_operand:DI 3 "register_operand" "=d")
        (umod:DI (match_dup 1)
                 (match_dup 2)))
   (clobber (match_scratch:DI 4 "=l"))
   (clobber (match_scratch:DI 5 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && optimize"
  "*
{
  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"ddivu\\t%0,%1,%2\";

  if (find_reg_note (insn, REG_UNUSED, operands[0]))
    return \"dremu\\t%3,%1,%2\";

  return \"ddivu\\t%0,%1,%2\;mfhi\\t%3\";
}"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "8")])          ;; various tests for dividing by 0 and such

(define_expand "divsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (div:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "nonmemory_operand" "di")))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "!optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "divsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (div:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "nonmemory_operand" "di")))]
  "!optimize"
  "div\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "13")]) ;; various tests for dividing by 0 and such

(define_expand "divdi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (div:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_nonmemory_operand" "di")))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && !optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (DImode, operands[2]);
}")

(define_insn "divdi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (div:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_nonmemory_operand" "di")))]
  "TARGET_64BIT && !optimize"
  "ddiv\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "14")]) ;; various tests for dividing by 0 and such

(define_expand "modsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (mod:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "nonmemory_operand" "di")))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "!optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "modsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (mod:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "nonmemory_operand" "di")))]
  "!optimize"
  "rem\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "13")]) ;; various tests for dividing by 0 and such

(define_expand "moddi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (mod:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_nonmemory_operand" "di")))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && !optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (DImode, operands[2]);
}")

(define_insn "moddi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (mod:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_nonmemory_operand" "di")))]
  "TARGET_64BIT && !optimize"
  "drem\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "14")]) ;; various tests for dividing by 0 and such

(define_expand "udivsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (udiv:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "nonmemory_operand" "di")))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "!optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "udivsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (udiv:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "nonmemory_operand" "di")))]
  "!optimize"
  "divu\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "7")])  ;; various tests for dividing by 0 and such

(define_expand "udivdi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (udiv:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "se_nonmemory_operand" "di")))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && !optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (DImode, operands[2]);
}")

(define_insn "udivdi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (udiv:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "se_nonmemory_operand" "di")))]
  "TARGET_64BIT && !optimize"
  "ddivu\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "7")])  ;; various tests for dividing by 0 and such

(define_expand "umodsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (umod:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "nonmemory_operand" "di")))
   (clobber (match_scratch:SI 3 "=l"))
   (clobber (match_scratch:SI 4 "=h"))
   (clobber (match_scratch:SI 6 "=a"))]
  "!optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn "umodsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (umod:SI (match_operand:SI 1 "register_operand" "d")
                 (match_operand:SI 2 "nonmemory_operand" "di")))]
  "!optimize"
  "remu\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "SI")
   (set_attr "length"   "7")])  ;; various tests for dividing by 0 and such

(define_expand "umoddi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (umod:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "se_nonmemory_operand" "di")))
   (clobber (match_scratch:DI 3 "=l"))
   (clobber (match_scratch:DI 4 "=h"))
   (clobber (match_scratch:DI 6 "=a"))]
  "TARGET_64BIT && !optimize"
  "
{
  /* MIPS16 needs div/rem ops in registers. */
  if (TARGET_MIPS16)
    operands[2] = force_reg (DImode, operands[2]);
}")

(define_insn "umoddi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (umod:DI (match_operand:DI 1 "se_register_operand" "d")
                 (match_operand:DI 2 "se_nonmemory_operand" "di")))]
  "TARGET_64BIT && !optimize"
  "dremu\\t%0,%1,%2"
  [(set_attr "type"     "idiv")
   (set_attr "mode"     "DI")
   (set_attr "length"   "7")])  ;; various tests for dividing by 0 and such

\f
;;
;;  ....................
;;
;;      SQUARE ROOT
;;
;;  ....................

(define_insn "sqrtdf2"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (sqrt:DF (match_operand:DF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && HAVE_SQRT_P() && TARGET_DOUBLE_FLOAT"
  "sqrt.d\\t%0,%1"
  [(set_attr "type"     "fsqrt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "sqrtsf2"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && HAVE_SQRT_P()"
  "sqrt.s\\t%0,%1"
  [(set_attr "type"     "fsqrt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (div:DF (match_operand:DF 1 "const_float_1_operand" "")
                (sqrt:DF (match_operand:DF 2 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && flag_fast_math"
  "rsqrt.d\\t%0,%2"
  [(set_attr "type"     "fsqrt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
                (sqrt:SF (match_operand:SF 2 "register_operand" "f"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && flag_fast_math"
  "rsqrt.s\\t%0,%2"
  [(set_attr "type"     "fsqrt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

\f
;;
;;  ....................
;;
;;      ABSOLUTE VALUE
;;
;;  ....................

;; Do not use the integer abs macro instruction, since that signals an
;; exception on -2147483648 (sigh).

(define_insn "abssi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (abs:SI (match_operand:SI 1 "register_operand" "d")))]
  "!TARGET_MIPS16"
  "*
{
  dslots_jump_total++;
  dslots_jump_filled++;
  operands[2] = const0_rtx;

  if (REGNO (operands[0]) == REGNO (operands[1]))
    {
      if (GENERATE_BRANCHLIKELY)
        return \"%(bltzl\\t%1,1f\\n\\tsubu\\t%0,%z2,%0\\n1:%)\";
      else
        return \"bgez\\t%1,1f%#\\n\\tsubu\\t%0,%z2,%0\\n1:\";
    }     
  else
    return \"%(bgez\\t%1,1f\\n\\tmove\\t%0,%1\\n\\tsubu\\t%0,%z2,%0\\n1:%)\";
}"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "SI")
   (set_attr "length"   "3")])

(define_insn "absdi2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (abs:DI (match_operand:DI 1 "se_register_operand" "d")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  dslots_jump_total++;
  dslots_jump_filled++;
  operands[2] = const0_rtx;

  if (REGNO (operands[0]) == REGNO (operands[1]))
    return \"%(bltzl\\t%1,1f\\n\\tdsubu\\t%0,%z2,%0\\n1:%)\";
  else
    return \"%(bgez\\t%1,1f\\n\\tmove\\t%0,%1\\n\\tdsubu\\t%0,%z2,%0\\n1:%)\";
}"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "DI")
   (set_attr "length"   "3")])

(define_insn "absdf2"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (abs:DF (match_operand:DF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "abs.d\\t%0,%1"
  [(set_attr "type"     "fabs")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "abssf2"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (abs:SF (match_operand:SF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "abs.s\\t%0,%1"
  [(set_attr "type"     "fabs")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

\f
;;
;;  ....................
;;
;;      FIND FIRST BIT INSTRUCTION
;;
;;  ....................
;;

(define_insn "ffssi2"
  [(set (match_operand:SI 0 "register_operand" "=&d")
        (ffs:SI (match_operand:SI 1 "register_operand" "d")))
   (clobber (match_scratch:SI 2 "=&d"))
   (clobber (match_scratch:SI 3 "=&d"))]
  "!TARGET_MIPS16"
  "*
{
  dslots_jump_total += 2;
  dslots_jump_filled += 2;
  operands[4] = const0_rtx;

  if (optimize && find_reg_note (insn, REG_DEAD, operands[1]))
    return \"%(\\
move\\t%0,%z4\\n\\
\\tbeq\\t%1,%z4,2f\\n\\
1:\\tand\\t%2,%1,0x0001\\n\\
\\taddu\\t%0,%0,1\\n\\
\\tbeq\\t%2,%z4,1b\\n\\
\\tsrl\\t%1,%1,1\\n\\
2:%)\";

  return \"%(\\
move\\t%0,%z4\\n\\
\\tmove\\t%3,%1\\n\\
\\tbeq\\t%3,%z4,2f\\n\\
1:\\tand\\t%2,%3,0x0001\\n\\
\\taddu\\t%0,%0,1\\n\\
\\tbeq\\t%2,%z4,1b\\n\\
\\tsrl\\t%3,%3,1\\n\\
2:%)\";
}"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "SI")
   (set_attr "length"   "6")])

(define_insn "ffsdi2"
  [(set (match_operand:DI 0 "register_operand" "=&d")
        (ffs:DI (match_operand:DI 1 "se_register_operand" "d")))
   (clobber (match_scratch:DI 2 "=&d"))
   (clobber (match_scratch:DI 3 "=&d"))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  dslots_jump_total += 2;
  dslots_jump_filled += 2;
  operands[4] = const0_rtx;

  if (optimize && find_reg_note (insn, REG_DEAD, operands[1]))
    return \"%(\\
move\\t%0,%z4\\n\\
\\tbeq\\t%1,%z4,2f\\n\\
1:\\tand\\t%2,%1,0x0001\\n\\
\\tdaddu\\t%0,%0,1\\n\\
\\tbeq\\t%2,%z4,1b\\n\\
\\tdsrl\\t%1,%1,1\\n\\
2:%)\";

  return \"%(\\
move\\t%0,%z4\\n\\
\\tmove\\t%3,%1\\n\\
\\tbeq\\t%3,%z4,2f\\n\\
1:\\tand\\t%2,%3,0x0001\\n\\
\\tdaddu\\t%0,%0,1\\n\\
\\tbeq\\t%2,%z4,1b\\n\\
\\tdsrl\\t%3,%3,1\\n\\
2:%)\";
}"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "DI")
   (set_attr "length"   "6")])

\f
;;
;;  ....................
;;
;;      NEGATION and ONE'S COMPLEMENT
;;
;;  ....................

(define_insn "negsi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (neg:SI (match_operand:SI 1 "register_operand" "d")))]
  ""
  "*
{
  if (TARGET_MIPS16)
    return \"neg\\t%0,%1\";
  operands[2] = const0_rtx;
  return \"subu\\t%0,%z2,%1\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_expand "negdi2"
  [(parallel [(set (match_operand:DI 0 "register_operand" "=d")
                   (neg:DI (match_operand:DI 1 "se_register_operand" "d")))
              (clobber (match_dup 2))])]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && !TARGET_MIPS16"
  "
{
  if (TARGET_64BIT)
    {
      emit_insn (gen_negdi2_internal_2 (operands[0], operands[1]));
      DONE;
    }

  operands[2] = gen_reg_rtx (SImode);
}")

(define_insn "negdi2_internal"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (neg:DI (match_operand:DI 1 "register_operand" "d")))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "! TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "*
{
  operands[3] = const0_rtx;
  return \"subu\\t%L0,%z3,%L1\;subu\\t%M0,%z3,%M1\;sltu\\t%2,%z3,%L0\;subu\\t%M0,%M0,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])

(define_insn "negdi2_internal_2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (neg:DI (match_operand:DI 1 "se_register_operand" "d")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  operands[2] = const0_rtx;
  return \"dsubu\\t%0,%z2,%1\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "negdf2"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (neg:DF (match_operand:DF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "neg.d\\t%0,%1"
  [(set_attr "type"     "fneg")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn "negsf2"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (neg:SF (match_operand:SF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "neg.s\\t%0,%1"
  [(set_attr "type"     "fneg")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn "one_cmplsi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (not:SI (match_operand:SI 1 "register_operand" "d")))]
  ""
  "*
{
  if (TARGET_MIPS16)
    return \"not\\t%0,%1\";
  operands[2] = const0_rtx;
  return \"nor\\t%0,%z2,%1\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "one_cmpldi2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (not:DI (match_operand:DI 1 "se_register_operand" "d")))]
  ""
  "*
{
  if (TARGET_MIPS16)
    {
      if (TARGET_64BIT)
        return \"not\\t%0,%1\";
      return \"not\\t%M0,%M1\;not\\t%L0,%L1\";
    }
  operands[2] = const0_rtx;
  if (TARGET_64BIT)
    return \"nor\\t%0,%z2,%1\";
  return \"nor\\t%M0,%z2,%M1\;nor\\t%L0,%z2,%L1\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ge (symbol_ref "mips_isa") (const_int 3))
                       (const_int 1)
                       (const_int 2)))])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (not:DI (match_operand:DI 1 "register_operand" "")))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))"

  [(set (subreg:SI (match_dup 0) 0) (not:SI (subreg:SI (match_dup 1) 0)))
   (set (subreg:SI (match_dup 0) 1) (not:SI (subreg:SI (match_dup 1) 1)))]
  "")

\f
;;
;;  ....................
;;
;;      LOGICAL
;;
;;  ....................
;;

;; Many of these instructions uses trivial define_expands, because we
;; want to use a different set of constraints when TARGET_MIPS16.

(define_expand "andsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (and:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "
{
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (and:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  "!TARGET_MIPS16"
  "@
   and\\t%0,%1,%2
   andi\\t%0,%1,%x2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (and:SI (match_operand:SI 1 "register_operand" "%0")
                (match_operand:SI 2 "register_operand" "d")))]
  "TARGET_MIPS16"
  "and\\t%0,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_expand "anddi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (and:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT || !TARGET_DEBUG_G_MODE"
  "
{
  if (TARGET_MIPS16)
    operands[2] = force_reg (DImode, operands[2]);
}")

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (and:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && !TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"and\\t%0,%1,%2\";
  return \"and\\t%M0,%M1,%M2\;and\\t%L0,%L1,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ne (symbol_ref "TARGET_64BIT") (const_int 0))
                       (const_int 1)
                       (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (and:DI (match_operand:DI 1 "se_register_operand" "0")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"and\\t%0,%2\";
  return \"and\\t%M0,%M2\;and\\t%L0,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ge (symbol_ref "mips_isa") (const_int 3))
                       (const_int 1)
                       (const_int 2)))])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (and:DI (match_operand:DI 1 "register_operand" "")
                (match_operand:DI 2 "register_operand" "")))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 0) (and:SI (subreg:SI (match_dup 1) 0) (subreg:SI (match_dup 2) 0)))
   (set (subreg:SI (match_dup 0) 1) (and:SI (subreg:SI (match_dup 1) 1) (subreg:SI (match_dup 2) 1)))]
  "")

(define_insn "anddi3_internal1"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (and:DI (match_operand:DI 1 "se_register_operand" "%d,d")
                (match_operand:DI 2 "se_uns_arith_operand" "d,K")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "@
   and\\t%0,%1,%2
   andi\\t%0,%1,%x2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_expand "iorsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (ior:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "
{
  if (TARGET_MIPS16)
    operands[2] = force_reg (SImode, operands[2]);
}")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (ior:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  "!TARGET_MIPS16"
  "@
   or\\t%0,%1,%2
   ori\\t%0,%1,%x2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ior:SI (match_operand:SI 1 "register_operand" "%0")
                (match_operand:SI 2 "register_operand" "d")))]
  "TARGET_MIPS16"
  "or\\t%0,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

;;; ??? There is no iordi3 pattern which accepts 'K' constants when
;;; TARGET_64BIT

(define_expand "iordi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ior:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT || !TARGET_DEBUG_G_MODE"
  "")

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ior:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && !TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"or\\t%0,%1,%2\";
  return \"or\\t%M0,%M1,%M2\;or\\t%L0,%L1,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ne (symbol_ref "TARGET_64BIT") (const_int 0))
                       (const_int 1)
                       (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ior:DI (match_operand:DI 1 "se_register_operand" "0")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"or\\t%0,%2\";
  return \"or\\t%M0,%M2\;or\\t%L0,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ge (symbol_ref "mips_isa") (const_int 3))
                       (const_int 1)
                       (const_int 2)))])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ior:DI (match_operand:DI 1 "register_operand" "")
                (match_operand:DI 2 "register_operand" "")))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 0) (ior:SI (subreg:SI (match_dup 1) 0) (subreg:SI (match_dup 2) 0)))
   (set (subreg:SI (match_dup 0) 1) (ior:SI (subreg:SI (match_dup 1) 1) (subreg:SI (match_dup 2) 1)))]
  "")

(define_expand "xorsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (xor:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (xor:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  "!TARGET_MIPS16"
  "@
   xor\\t%0,%1,%2
   xori\\t%0,%1,%x2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,t,t")
        (xor:SI (match_operand:SI 1 "uns_arith_operand" "%0,d,d")
                (match_operand:SI 2 "uns_arith_operand" "d,K,d")))]
  "TARGET_MIPS16"
  "@
   xor\\t%0,%2
   cmpi\\t%1,%2
   cmp\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])

;; ??? If delete the 32-bit long long patterns, then could merge this with
;; the following xordi3_internal pattern.
(define_expand "xordi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (xor:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT || !TARGET_DEBUG_G_MODE"
  "")

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (xor:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "(TARGET_64BIT || !TARGET_DEBUG_G_MODE) && !TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"xor\\t%0,%1,%2\";
  return \"xor\\t%M0,%M1,%M2\;xor\\t%L0,%L1,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ne (symbol_ref "TARGET_64BIT") (const_int 0))
                       (const_int 1)
                       (const_int 2)))])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (xor:DI (match_operand:DI 1 "se_register_operand" "0")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "!TARGET_64BIT && TARGET_MIPS16"
  "xor\\t%M0,%M2\;xor\\t%L0,%L2"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,t,t")
        (xor:DI (match_operand:DI 1 "se_register_operand" "%0,d,d")
                (match_operand:DI 2 "se_uns_arith_operand" "d,K,d")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "@
   xor\\t%0,%2
   cmpi\\t%1,%2
   cmp\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)])])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (xor:DI (match_operand:DI 1 "register_operand" "")
                (match_operand:DI 2 "register_operand" "")))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 0) (xor:SI (subreg:SI (match_dup 1) 0) (subreg:SI (match_dup 2) 0)))
   (set (subreg:SI (match_dup 0) 1) (xor:SI (subreg:SI (match_dup 1) 1) (subreg:SI (match_dup 2) 1)))]
  "")

(define_insn "xordi3_immed"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (xor:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_uns_arith_operand" "K")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "xori\\t%0,%1,%x2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "*norsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (and:SI (not:SI (match_operand:SI 1 "register_operand" "d"))
                (not:SI (match_operand:SI 2 "register_operand" "d"))))]
  "!TARGET_MIPS16"
  "nor\\t%0,%z1,%z2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "*nordi3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (and:DI (not:DI (match_operand:DI 1 "se_register_operand" "d"))
                (not:DI (match_operand:DI 2 "se_register_operand" "d"))))]
  "!TARGET_MIPS16"
  "*
{
  if (TARGET_64BIT)
    return \"nor\\t%0,%z1,%z2\";
  return \"nor\\t%M0,%M1,%M2\;nor\\t%L0,%L1,%L2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set (attr "length")
        (if_then_else (ne (symbol_ref "TARGET_64BIT") (const_int 0))
                       (const_int 1)
                       (const_int 2)))])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (and:DI (not:DI (match_operand:DI 1 "register_operand" ""))
                (not:DI (match_operand:DI 2 "register_operand" ""))))]
  "reload_completed && !TARGET_MIPS16 && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))
   && GET_CODE (operands[2]) == REG && GP_REG_P (REGNO (operands[2]))"

  [(set (subreg:SI (match_dup 0) 0) (and:SI (not:SI (subreg:SI (match_dup 1) 0)) (not:SI (subreg:SI (match_dup 2) 0))))
   (set (subreg:SI (match_dup 0) 1) (and:SI (not:SI (subreg:SI (match_dup 1) 1)) (not:SI (subreg:SI (match_dup 2) 1))))]
  "")
\f
;;
;;  ....................
;;
;;      TRUNCATION
;;
;;  ....................

(define_insn "truncdfsf2"
  [(set (match_operand:SF 0 "register_operand" "=f")
        (float_truncate:SF (match_operand:DF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "cvt.s.d\\t%0,%1"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn "truncdisi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (truncate:SI (match_operand:DI 1 "se_register_operand" "d")))]
  "TARGET_64BIT"
  "*
{
  if (TARGET_MIPS16)
    return \"dsll\\t%0,%1,32\;dsra\\t%0,32\";
  return \"dsll\\t%0,%1,32\;dsra\\t%0,%0,32\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (eq (symbol_ref "mips16") (const_int 0))
                                      (const_int 2)
                                      (const_int 4)))])

(define_insn "truncdihi2"
  [(set (match_operand:HI 0 "register_operand" "=d")
        (truncate:HI (match_operand:DI 1 "se_register_operand" "d")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "andi\\t%0,%1,0xffff"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1")])

(define_insn "truncdiqi2"
  [(set (match_operand:QI 0 "register_operand" "=d")
        (truncate:QI (match_operand:DI 1 "se_register_operand" "d")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "andi\\t%0,%1,0x00ff"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "QI")
   (set_attr "length"   "1")])

;; Combiner patterns to optimize shift/truncate combinations.
(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (truncate:SI (ashiftrt:DI (match_operand:DI 1 "se_register_operand" "d")
                                  (match_operand:DI 2 "small_int" "I"))))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  int shift_amt = INTVAL (operands[2]) & 0x3f;

  if (shift_amt < 32)
    {
      operands[2] = GEN_INT (32 - shift_amt);
      return \"dsll\\t%0,%1,%2\;dsra\\t%0,%0,32\";
    }
  else
    {
      operands[2] = GEN_INT (shift_amt);
      return \"dsra\\t%0,%1,%2\";
    }
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])
        
(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (truncate:SI (lshiftrt:DI (match_operand:DI 1 "se_register_operand" "d")
                                  (match_operand:DI 2 "small_int" "I"))))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  int shift_amt = INTVAL (operands[2]) & 0x3f;

  if (shift_amt < 32)
    {
      operands[2] = GEN_INT (32 - shift_amt);
      return \"dsll\\t%0,%1,%2\;dsra\\t%0,%0,32\";
    }
  else if (shift_amt == 32)
    return \"dsra\\t%0,%1,32\";
  else
    {
      operands[2] = GEN_INT (shift_amt);
      return \"dsrl\\t%0,%1,%2\";
    }
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (truncate:SI (ashift:DI (match_operand:DI 1 "se_register_operand" "d")
                                (match_operand:DI 2 "small_int" "I"))))]
  "TARGET_64BIT"
  "*
{
  int shift_amt = INTVAL (operands[2]) & 0x3f;

  if (shift_amt < 32)
    {
      operands[2] = GEN_INT (32 + shift_amt);
      if (TARGET_MIPS16)
        return \"dsll\\t%0,%1,%2\;dsra\\t%0,32\";
      return \"dsll\\t%0,%1,%2\;dsra\\t%0,%0,32\";
    }
  else
    return \"move\\t%0,%.\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

;; Combiner patterns to optimize truncate/zero_extend combinations.

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (zero_extend:SI (truncate:HI
                         (match_operand:DI 1 "se_register_operand" "d"))))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "andi\\t%0,%1,0xffff"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d")
        (zero_extend:SI (truncate:QI
                         (match_operand:DI 1 "se_register_operand" "d"))))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "andi\\t%0,%1,0xff"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:HI 0 "register_operand" "=d")
        (zero_extend:HI (truncate:QI
                         (match_operand:DI 1 "se_register_operand" "d"))))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "andi\\t%0,%1,0xff"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1")])
\f
;;
;;  ....................
;;
;;      ZERO EXTENSION
;;
;;  ....................

;; Extension insns.
;; Those for integer source operand are ordered widest source type first.

(define_expand "zero_extendsidi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (DImode, operands[1]);
      rtx temp  = gen_reg_rtx (DImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 32);

      emit_insn (gen_ashldi3 (temp, op1, shift));
      emit_insn (gen_lshrdi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "zero_extendsidi2_internal"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (zero_extend:DI (match_operand:SI 1 "memory_operand" "R,m")))]
  "TARGET_64BIT"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])

(define_expand "zero_extendhisi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (TARGET_MIPS16 && GET_CODE (operands[1]) != MEM)
    {
      rtx op = gen_lowpart (SImode, operands[1]);
      rtx temp = force_reg (SImode, GEN_INT (0xffff));

      emit_insn (gen_andsi3 (operands[0], op, temp));
      DONE;
    }
}")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "d,R,m")))]
  "!TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0xffff\";
  else
    return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "arith,load,load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,1,2")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (zero_extend:SI (match_operand:HI 1 "memory_operand" "R,m")))]
  "TARGET_MIPS16"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])

(define_expand "zero_extendhidi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (zero_extend:DI (match_operand:HI 1 "nonimmediate_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (TARGET_MIPS16 && GET_CODE (operands[1]) != MEM)
    {
      rtx op = gen_lowpart (DImode, operands[1]);
      rtx temp = force_reg (DImode, GEN_INT (0xffff));

      emit_insn (gen_anddi3 (operands[0], op, temp));
      DONE;
    }
}")

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (zero_extend:DI (match_operand:HI 1 "nonimmediate_operand" "d,R,m")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0xffff\";
  else
    return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "arith,load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,1,2")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (zero_extend:DI (match_operand:HI 1 "memory_operand" "R,m")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])

(define_expand "zero_extendqihi2"
  [(set (match_operand:HI 0 "register_operand" "")
        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (TARGET_MIPS16 && GET_CODE (operands[1]) != MEM)
    {
      rtx op0 = gen_lowpart (SImode, operands[0]);
      rtx op1 = gen_lowpart (SImode, operands[1]);
      rtx temp = force_reg (SImode, GEN_INT (0xff));

      emit_insn (gen_andsi3 (op0, op1, temp));
      DONE;
    }
}")

(define_insn ""
  [(set (match_operand:HI 0 "register_operand" "=d,d,d")
        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "d,R,m")))]
  "!TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0x00ff\";
  else
    return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "arith,load,load")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1,1,2")])

(define_insn ""
  [(set (match_operand:HI 0 "register_operand" "=d,d")
        (zero_extend:HI (match_operand:QI 1 "memory_operand" "R,m")))]
  "TARGET_MIPS16"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1,2")])

(define_expand "zero_extendqisi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (TARGET_MIPS16 && GET_CODE (operands[1]) != MEM)
    {
      rtx op = gen_lowpart (SImode, operands[1]);
      rtx temp = force_reg (SImode, GEN_INT (0xff));

      emit_insn (gen_andsi3 (operands[0], op, temp));
      DONE;
    }
}")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "d,R,m")))]
  "!TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0x00ff\";
  else
    return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "arith,load,load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,1,2")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (zero_extend:SI (match_operand:QI 1 "memory_operand" "R,m")))]
  "TARGET_MIPS16"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])

(define_expand "zero_extendqidi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (zero_extend:DI (match_operand:QI 1 "nonimmediate_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (TARGET_MIPS16 && GET_CODE (operands[1]) != MEM)
    {
      rtx op = gen_lowpart (DImode, operands[1]);
      rtx temp = force_reg (DImode, GEN_INT (0xff));

      emit_insn (gen_anddi3 (operands[0], op, temp));
      DONE;
    }
}")

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d,d")
        (zero_extend:DI (match_operand:QI 1 "nonimmediate_operand" "d,R,m")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0x00ff\";
  else
    return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "arith,load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,1,2")])

;; These can be created when a paradoxical subreg operand with an implicit
;; sign_extend operator is reloaded.  Because of the subreg, this is really
;; a zero extend.
;; ??? It might be possible to eliminate the need for these patterns by adding
;; more support to reload for implicit sign_extend operators.
(define_insn "*paradoxical_extendhidi2"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (sign_extend:DI
         (subreg:SI (match_operand:HI 1 "memory_operand" "R,m") 0)))]
  "TARGET_64BIT"
  "*
{
  return mips_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (zero_extend:DI (match_operand:QI 1 "memory_operand" "R,m")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])
\f
;;
;;  ....................
;;
;;      SIGN EXTENSION
;;
;;  ....................

;; Extension insns.
;; Those for integer source operand are ordered widest source type first.

;; In 64 bit mode, 32 bit values in general registers are always
;; correctly sign extended.  That means that if the target is a
;; general register, we can sign extend from SImode to DImode just by
;; doing a move.

(define_insn "extendsidi2"
  [(set (match_operand:DI 0 "register_operand" "=d,*d,d,d")
        (sign_extend:DI (match_operand:SI 1 "nonimmediate_operand" "d,*x,R,m")))]
  "TARGET_64BIT"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,hilo,load,load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,1,1,2")])

;; These patterns originally accepted general_operands, however, slightly
;; better code is generated by only accepting register_operands, and then
;; letting combine generate the lh and lb insns.

(define_expand "extendhidi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (sign_extend:DI (match_operand:HI 1 "nonimmediate_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (DImode, operands[1]);
      rtx temp  = gen_reg_rtx (DImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 48);

      emit_insn (gen_ashldi3 (temp, op1, shift));
      emit_insn (gen_ashrdi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendhidi2_internal"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (sign_extend:DI (match_operand:HI 1 "memory_operand" "R,m")))]
  "TARGET_64BIT"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])

(define_expand "extendhisi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 16);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendhisi2_internal"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (sign_extend:SI (match_operand:HI 1 "memory_operand" "R,m")))]
  ""
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])

(define_expand "extendqihi2"
  [(set (match_operand:HI 0 "register_operand" "")
        (sign_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op0   = gen_lowpart (SImode, operands[0]);
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 24);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (op0, temp, shift));
      DONE;
    }
}")

(define_insn "extendqihi2_internal"
  [(set (match_operand:HI 0 "register_operand" "=d,d")
        (sign_extend:HI (match_operand:QI 1 "memory_operand" "R,m")))]
  ""
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])


(define_expand "extendqisi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 24);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendqisi2_insn"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (sign_extend:SI (match_operand:QI 1 "memory_operand" "R,m")))]
  ""
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])

(define_expand "extendqidi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (sign_extend:DI (match_operand:QI 1 "nonimmediate_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (DImode, operands[1]);
      rtx temp  = gen_reg_rtx (DImode);
      rtx shift = gen_rtx (CONST_INT, VOIDmode, 56);

      emit_insn (gen_ashldi3 (temp, op1, shift));
      emit_insn (gen_ashrdi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendqidi2_insn"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (sign_extend:DI (match_operand:QI 1 "memory_operand" "R,m")))]
  "TARGET_64BIT"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "load")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])


(define_insn "extendsfdf2"
  [(set (match_operand:DF 0 "register_operand" "=f")
        (float_extend:DF (match_operand:SF 1 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "cvt.d.s\\t%0,%1"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

\f

;;
;;  ....................
;;
;;      CONVERSIONS
;;
;;  ....................

;; The SImode scratch register can not be shared with address regs used for
;; operand zero, because then the address in the move instruction will be
;; clobbered.  We mark the scratch register as early clobbered to prevent this.

;; We need the ?X in alternative 1 so that it will be choosen only if the
;; destination is a floating point register.  Otherwise, alternative 1 can
;; have lower cost than alternative 0 (because there is one less loser), and
;; can be choosen when it won't work (because integral reloads into FP
;; registers are not supported).

(define_insn "fix_truncdfsi2"
  [(set (match_operand:SI 0 "general_operand" "=d,*f,R,To")
        (fix:SI (match_operand:DF 1 "register_operand" "f,*f,f,f")))
   (clobber (match_scratch:SI 2 "=d,*d,&d,&d"))
   (clobber (match_scratch:DF 3 "=f,?*X,f,f"))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  rtx xoperands[10];

  if (which_alternative == 1)
    return \"trunc.w.d %0,%1,%2\";

  output_asm_insn (\"trunc.w.d %3,%1,%2\", operands);

  xoperands[0] = operands[0];
  xoperands[1] = operands[3];
  output_asm_insn (mips_move_1word (xoperands, insn, FALSE), xoperands);
  return \"\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "11,9,10,11")])


(define_insn "fix_truncsfsi2"
  [(set (match_operand:SI 0 "general_operand" "=d,*f,R,To")
        (fix:SI (match_operand:SF 1 "register_operand" "f,*f,f,f")))
   (clobber (match_scratch:SI 2 "=d,*d,&d,&d"))
   (clobber (match_scratch:SF 3 "=f,?*X,f,f"))]
  "TARGET_HARD_FLOAT"
  "*
{
  rtx xoperands[10];

  if (which_alternative == 1)
    return \"trunc.w.s %0,%1,%2\";

  output_asm_insn (\"trunc.w.s %3,%1,%2\", operands);

  xoperands[0] = operands[0];
  xoperands[1] = operands[3];
  output_asm_insn (mips_move_1word (xoperands, insn, FALSE), xoperands);
  return \"\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "11,9,10,11")])


;;; ??? trunc.l.d is mentioned in the appendix of the 1993 r4000/r4600 manuals
;;; but not in the chapter that describes the FPU.  It is not mentioned at all
;;; in the 1991 manuals.  The r4000 at Cygnus does not have this instruction.

;;; Deleting this means that we now need two libgcc2.a libraries.  One for
;;; the 32 bit calling convention and one for the 64 bit calling convention.

;;; If this is disabled, then fixuns_truncdfdi2 must be disabled also.

(define_insn "fix_truncdfdi2"
  [(set (match_operand:DI 0 "general_operand" "=d,*f,R,To")
        (fix:DI (match_operand:DF 1 "register_operand" "f,*f,f,f")))
   (clobber (match_scratch:DF 2 "=f,?*X,f,f"))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "*
{
  rtx xoperands[10];

  if (which_alternative == 1)
    return \"trunc.l.d %0,%1\";

  output_asm_insn (\"trunc.l.d %2,%1\", operands);

  xoperands[0] = operands[0];
  xoperands[1] = operands[2];
  output_asm_insn (mips_move_2words (xoperands, insn, FALSE), xoperands);
  return \"\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "2,1,2,3")])


;;; ??? trunc.l.s is mentioned in the appendix of the 1993 r4000/r4600 manuals
;;; but not in the chapter that describes the FPU.  It is not mentioned at all
;;; in the 1991 manuals.  The r4000 at Cygnus does not have this instruction.
(define_insn "fix_truncsfdi2"
  [(set (match_operand:DI 0 "general_operand" "=d,*f,R,To")
        (fix:DI (match_operand:SF 1 "register_operand" "f,*f,f,f")))
   (clobber (match_scratch:DF 2 "=f,?*X,f,f"))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "*
{
  rtx xoperands[10];

  if (which_alternative == 1)
    return \"trunc.l.s %0,%1\";

  output_asm_insn (\"trunc.l.s %2,%1\", operands);

  xoperands[0] = operands[0];
  xoperands[1] = operands[2];
  output_asm_insn (mips_move_2words (xoperands, insn, FALSE), xoperands);
  return \"\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "2,1,2,3")])


(define_insn "floatsidf2"
  [(set (match_operand:DF 0 "register_operand" "=f,f,f")
        (float:DF (match_operand:SI 1 "nonimmediate_operand" "d,R,m")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  dslots_load_total++;
  if (GET_CODE (operands[1]) == MEM)
    return \"l.s\\t%0,%1%#\;cvt.d.w\\t%0,%0\";

  return \"mtc1\\t%1,%0%#\;cvt.d.w\\t%0,%0\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "3,4,3")])


(define_insn "floatdidf2"
  [(set (match_operand:DF 0 "register_operand" "=f,f,f")
        (float:DF (match_operand:DI 1 "se_nonimmediate_operand" "d,R,m")))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "*
{
  dslots_load_total++;
  if (GET_CODE (operands[1]) == MEM)
    return \"l.d\\t%0,%1%#\;cvt.d.l\\t%0,%0\";

  return \"dmtc1\\t%1,%0%#\;cvt.d.l\\t%0,%0\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "DF")
   (set_attr "length"   "3,4,3")])


(define_insn "floatsisf2"
  [(set (match_operand:SF 0 "register_operand" "=f,f,f")
        (float:SF (match_operand:SI 1 "nonimmediate_operand" "d,R,m")))]
  "TARGET_HARD_FLOAT"
  "*
{
  dslots_load_total++;
  if (GET_CODE (operands[1]) == MEM)
    return \"l.s\\t%0,%1%#\;cvt.s.w\\t%0,%0\";

  return \"mtc1\\t%1,%0%#\;cvt.s.w\\t%0,%0\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "3,4,3")])


(define_insn "floatdisf2"
  [(set (match_operand:SF 0 "register_operand" "=f,f,f")
        (float:SF (match_operand:DI 1 "se_nonimmediate_operand" "d,R,m")))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "*
{
  dslots_load_total++;
  if (GET_CODE (operands[1]) == MEM)
    return \"l.d\\t%0,%1%#\;cvt.s.l\\t%0,%0\";

  return \"dmtc1\\t%1,%0%#\;cvt.s.l\\t%0,%0\";
}"
  [(set_attr "type"     "fcvt")
   (set_attr "mode"     "SF")
   (set_attr "length"   "3,4,3")])


(define_expand "fixuns_truncdfsi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (unsigned_fix:SI (match_operand:DF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "
{
  rtx reg1 = gen_reg_rtx (DFmode);
  rtx reg2 = gen_reg_rtx (DFmode);
  rtx reg3 = gen_reg_rtx (SImode);
  rtx label1 = gen_label_rtx ();
  rtx label2 = gen_label_rtx ();
  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (1.0, 31);

  if (reg1)                     /* turn off complaints about unreached code */
    {
      emit_move_insn (reg1, immed_real_const_1 (offset, DFmode));
      do_pending_stack_adjust ();

      emit_insn (gen_cmpdf (operands[1], reg1));
      emit_jump_insn (gen_bge (label1));

      emit_insn (gen_fix_truncdfsi2 (operands[0], operands[1]));
      emit_jump_insn (gen_rtx (SET, VOIDmode, pc_rtx,
                               gen_rtx (LABEL_REF, VOIDmode, label2)));
      emit_barrier ();

      emit_label (label1);
      emit_move_insn (reg2, gen_rtx (MINUS, DFmode, operands[1], reg1));
      emit_move_insn (reg3, gen_rtx (CONST_INT, VOIDmode, 0x80000000));

      emit_insn (gen_fix_truncdfsi2 (operands[0], reg2));
      emit_insn (gen_iorsi3 (operands[0], operands[0], reg3));

      emit_label (label2);

      /* allow REG_NOTES to be set on last insn (labels don't have enough
         fields, and can't be used for REG_NOTES anyway).  */
      emit_insn (gen_rtx (USE, VOIDmode, stack_pointer_rtx));
      DONE;
    }
}")


(define_expand "fixuns_truncdfdi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (unsigned_fix:DI (match_operand:DF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "
{
  rtx reg1 = gen_reg_rtx (DFmode);
  rtx reg2 = gen_reg_rtx (DFmode);
  rtx reg3 = gen_reg_rtx (DImode);
  rtx label1 = gen_label_rtx ();
  rtx label2 = gen_label_rtx ();
  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (1.0, 63);

  if (reg1)                     /* turn off complaints about unreached code */
    {
      emit_move_insn (reg1, immed_real_const_1 (offset, DFmode));
      do_pending_stack_adjust ();

      emit_insn (gen_cmpdf (operands[1], reg1));
      emit_jump_insn (gen_bge (label1));

      emit_insn (gen_fix_truncdfdi2 (operands[0], operands[1]));
      emit_jump_insn (gen_rtx (SET, VOIDmode, pc_rtx,
                               gen_rtx (LABEL_REF, VOIDmode, label2)));
      emit_barrier ();

      emit_label (label1);
      emit_move_insn (reg2, gen_rtx (MINUS, DFmode, operands[1], reg1));
      emit_move_insn (reg3, gen_rtx (CONST_INT, VOIDmode, 0x80000000));
      emit_insn (gen_ashldi3 (reg3, reg3, GEN_INT (32)));

      emit_insn (gen_fix_truncdfdi2 (operands[0], reg2));
      emit_insn (gen_iordi3 (operands[0], operands[0], reg3));

      emit_label (label2);

      /* allow REG_NOTES to be set on last insn (labels don't have enough
         fields, and can't be used for REG_NOTES anyway).  */
      emit_insn (gen_rtx (USE, VOIDmode, stack_pointer_rtx));
      DONE;
    }
}")


(define_expand "fixuns_truncsfsi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (unsigned_fix:SI (match_operand:SF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT"
  "
{
  rtx reg1 = gen_reg_rtx (SFmode);
  rtx reg2 = gen_reg_rtx (SFmode);
  rtx reg3 = gen_reg_rtx (SImode);
  rtx label1 = gen_label_rtx ();
  rtx label2 = gen_label_rtx ();
  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (1.0, 31);

  if (reg1)                     /* turn off complaints about unreached code */
    {
      emit_move_insn (reg1, immed_real_const_1 (offset, SFmode));
      do_pending_stack_adjust ();

      emit_insn (gen_cmpsf (operands[1], reg1));
      emit_jump_insn (gen_bge (label1));

      emit_insn (gen_fix_truncsfsi2 (operands[0], operands[1]));
      emit_jump_insn (gen_rtx (SET, VOIDmode, pc_rtx,
                               gen_rtx (LABEL_REF, VOIDmode, label2)));
      emit_barrier ();

      emit_label (label1);
      emit_move_insn (reg2, gen_rtx (MINUS, SFmode, operands[1], reg1));
      emit_move_insn (reg3, gen_rtx (CONST_INT, VOIDmode, 0x80000000));

      emit_insn (gen_fix_truncsfsi2 (operands[0], reg2));
      emit_insn (gen_iorsi3 (operands[0], operands[0], reg3));

      emit_label (label2);

      /* allow REG_NOTES to be set on last insn (labels don't have enough
         fields, and can't be used for REG_NOTES anyway).  */
      emit_insn (gen_rtx (USE, VOIDmode, stack_pointer_rtx));
      DONE;
    }
}")


(define_expand "fixuns_truncsfdi2"
  [(set (match_operand:DI 0 "register_operand" "")
        (unsigned_fix:DI (match_operand:SF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
  "
{
  rtx reg1 = gen_reg_rtx (SFmode);
  rtx reg2 = gen_reg_rtx (SFmode);
  rtx reg3 = gen_reg_rtx (DImode);
  rtx label1 = gen_label_rtx ();
  rtx label2 = gen_label_rtx ();
  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (1.0, 63);

  if (reg1)                     /* turn off complaints about unreached code */
    {
      emit_move_insn (reg1, immed_real_const_1 (offset, SFmode));
      do_pending_stack_adjust ();

      emit_insn (gen_cmpsf (operands[1], reg1));
      emit_jump_insn (gen_bge (label1));

      emit_insn (gen_fix_truncsfdi2 (operands[0], operands[1]));
      emit_jump_insn (gen_rtx (SET, VOIDmode, pc_rtx,
                               gen_rtx (LABEL_REF, VOIDmode, label2)));
      emit_barrier ();

      emit_label (label1);
      emit_move_insn (reg2, gen_rtx (MINUS, SFmode, operands[1], reg1));
      emit_move_insn (reg3, gen_rtx (CONST_INT, VOIDmode, 0x80000000));
      emit_insn (gen_ashldi3 (reg3, reg3, GEN_INT (32)));

      emit_insn (gen_fix_truncsfdi2 (operands[0], reg2));
      emit_insn (gen_iordi3 (operands[0], operands[0], reg3));

      emit_label (label2);

      /* allow REG_NOTES to be set on last insn (labels don't have enough
         fields, and can't be used for REG_NOTES anyway).  */
      emit_insn (gen_rtx (USE, VOIDmode, stack_pointer_rtx));
      DONE;
    }
}")

\f
;;
;;  ....................
;;
;;      DATA MOVEMENT
;;
;;  ....................

;; Bit field extract patterns which use lwl/lwr.

;; ??? There should be DImode variants for 64 bit code, but the current
;; bitfield scheme can't handle that.  We would need to add new optabs
;; in order to make that work.

;; ??? There could be HImode variants for the ulh/ulhu/ush macros.
;; It isn't clear whether this will give better code.

(define_expand "extv"
  [(set (match_operand:SI 0 "register_operand" "")
        (sign_extract:SI (match_operand:QI 1 "memory_operand" "")
                         (match_operand:SI 2 "immediate_operand" "")
                         (match_operand:SI 3 "immediate_operand" "")))]
  "!TARGET_MIPS16"
  "
{
  /* If this isn't a 32 bit field, and it doesn't start on a byte boundary
     then fail.  */
  if (INTVAL (operands[2]) != 32 || (INTVAL (operands[3]) % 8) != 0)
    FAIL;

  /* This can happen for a 64 bit target, when extracting a value from
     a 64 bit union member.  extract_bit_field doesn't verify that our
     source matches the predicate, so we force it to be a MEM here.  */
  if (GET_CODE (operands[1]) != MEM)
    FAIL;

  /* Change the mode to BLKmode for aliasing purposes.  */
  operands[1] = change_address (operands[1], BLKmode, XEXP (operands[1], 0));

  /* Otherwise, emit a lwl/lwr pair to load the value.  */
  emit_insn (gen_movsi_ulw (operands[0], operands[1]));
  DONE;
}")

(define_expand "extzv"
  [(set (match_operand:SI 0 "register_operand" "")
        (zero_extract:SI (match_operand:QI 1 "memory_operand" "")
                         (match_operand:SI 2 "immediate_operand" "")
                         (match_operand:SI 3 "immediate_operand" "")))]
  "!TARGET_MIPS16"
  "
{
  /* If this isn't a 32 bit field, and it doesn't start on a byte boundary
     then fail.  */
  if (INTVAL (operands[2]) != 32 || (INTVAL (operands[3]) % 8) != 0)
    FAIL;

  /* This can happen for a 64 bit target, when extracting a value from
     a 64 bit union member.  extract_bit_field doesn't verify that our
     source matches the predicate, so we force it to be a MEM here.  */
  if (GET_CODE (operands[1]) != MEM)
    FAIL;

  /* Change the mode to BLKmode for aliasing purposes.  */
  operands[1] = change_address (operands[1], BLKmode, XEXP (operands[1], 0));

  /* Otherwise, emit a lwl/lwr pair to load the value.  */
  emit_insn (gen_movsi_ulw (operands[0], operands[1]));
  DONE;
}")

(define_expand "insv"
  [(set (zero_extract:SI (match_operand:QI 0 "memory_operand" "")
                         (match_operand:SI 1 "immediate_operand" "")
                         (match_operand:SI 2 "immediate_operand" ""))
        (match_operand:SI 3 "register_operand" ""))]
  "!TARGET_MIPS16"
  "
{
  /* If this isn't a 32 bit field, and it doesn't start on a byte boundary
     then fail.  */
  if (INTVAL (operands[1]) != 32 || (INTVAL (operands[2]) % 8) != 0)
    FAIL;

  /* This can happen for a 64 bit target, when storing into a 32 bit union
     member.  store_bit_field doesn't verify that our target matches the
     predicate, so we force it to be a MEM here.  */
  if (GET_CODE (operands[0]) != MEM)
    FAIL;

  /* Change the mode to BLKmode for aliasing purposes.  */
  operands[0] = change_address (operands[0], BLKmode, XEXP (operands[0], 0));

  /* Otherwise, emit a swl/swr pair to load the value.  */
  emit_insn (gen_movsi_usw (operands[0], operands[3]));
  DONE;
}")

;; unaligned word moves generated by the bit field patterns

(define_insn "movsi_ulw"
  [(set (match_operand:SI 0 "register_operand" "=&d,&d")
        (unspec:SI [(match_operand:BLK 1 "general_operand" "R,o")] 0))]
  "!TARGET_MIPS16"
  "*
{
  rtx offset = const0_rtx;
  rtx addr = XEXP (operands[1], 0);
  rtx mem_addr = eliminate_constant_term (addr, &offset);
  char *ret;

  if (TARGET_STATS)
    mips_count_memory_refs (operands[1], 2);

  /* The stack/frame pointers are always aligned, so we can convert
     to the faster lw if we are referencing an aligned stack location.  */

  if ((INTVAL (offset) & 3) == 0
      && (mem_addr == stack_pointer_rtx || mem_addr == frame_pointer_rtx))
    ret = \"lw\\t%0,%1\";
  else
    ret = \"ulw\\t%0,%1\";

  return mips_fill_delay_slot (ret, DELAY_LOAD, operands, insn);
}"
  [(set_attr "type"     "load,load")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2,4")])

(define_insn "movsi_usw"
  [(set (match_operand:BLK 0 "memory_operand" "=R,o")
        (unspec:BLK [(match_operand:SI 1 "reg_or_0_operand" "dJ,dJ")] 1))]
  "!TARGET_MIPS16"
  "*
{
  rtx offset = const0_rtx;
  rtx addr = XEXP (operands[0], 0);
  rtx mem_addr = eliminate_constant_term (addr, &offset);

  if (TARGET_STATS)
    mips_count_memory_refs (operands[0], 2);

  /* The stack/frame pointers are always aligned, so we can convert
     to the faster sw if we are referencing an aligned stack location.  */

  if ((INTVAL (offset) & 3) == 0
      && (mem_addr == stack_pointer_rtx || mem_addr == frame_pointer_rtx))
    return \"sw\\t%1,%0\";

  return \"usw\\t%z1,%0\";
}"
  [(set_attr "type"     "store")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2,4")])

;; These two patterns support loading addresses with two instructions instead
;; of using the macro instruction la.

;; ??? mips_move_1word has support for HIGH, so this pattern may be
;; unnecessary.

(define_insn "high"
  [(set (match_operand:SI 0 "register_operand" "=r")
        (high:SI (match_operand:SI 1 "immediate_operand" "")))]
  "mips_split_addresses && !TARGET_MIPS16"
  "lui\\t%0,%%hi(%1) # high"
  [(set_attr "type"     "move")
   (set_attr "length"   "1")])

(define_insn "low"
  [(set (match_operand:SI 0 "register_operand" "=r")
        (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   (match_operand:SI 2 "immediate_operand" "")))]
  "mips_split_addresses && !TARGET_MIPS16"
  "addiu\\t%0,%1,%%lo(%2) # low"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

;; 64-bit integer moves

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.

(define_expand "movdi"
  [(set (match_operand:DI 0 "nonimmediate_operand" "")
        (match_operand:DI 1 "general_operand" ""))]
  ""
  "
{
  if (mips_split_addresses && mips_check_split (operands[1], DImode))
    {
      enum machine_mode mode = GET_MODE (operands[0]);
      rtx tem = ((reload_in_progress | reload_completed)
                 ? operands[0] : gen_reg_rtx (mode));

      emit_insn (gen_rtx (SET, VOIDmode, tem,
                          gen_rtx (HIGH, mode, operands[1])));

      operands[1] = gen_rtx (LO_SUM, mode, tem, operands[1]);
    }

  /* If we are generating embedded PIC code, and we are referring to a
     symbol in the .text section, we must use an offset from the start
     of the function.  */
  if (TARGET_EMBEDDED_PIC
      && (GET_CODE (operands[1]) == LABEL_REF
          || (GET_CODE (operands[1]) == SYMBOL_REF
              && ! SYMBOL_REF_FLAG (operands[1]))))
    {
      rtx temp;

      temp = embedded_pic_offset (operands[1]);
      temp = gen_rtx (PLUS, Pmode, embedded_pic_fnaddr_rtx,
                      force_reg (DImode, temp));
      emit_move_insn (operands[0], force_reg (DImode, temp));
      DONE;
    }

  /* If operands[1] is a constant address illegal for pic, then we need to
     handle it just like LEGITIMIZE_ADDRESS does.  */
  if (flag_pic && pic_address_needs_scratch (operands[1]))
    {
      rtx temp = force_reg (DImode, XEXP (XEXP (operands[1], 0), 0));
      rtx temp2 = XEXP (XEXP (operands[1], 0), 1);

      if (! SMALL_INT (temp2))
        temp2 = force_reg (DImode, temp2);

      emit_move_insn (operands[0], gen_rtx (PLUS, DImode, temp, temp2));
      DONE;
    }

  /* On the mips16, we can handle a GP relative reference by adding in
     $gp.  We need to check the name to see whether this is a string
     constant.  */
  if (TARGET_MIPS16
      && register_operand (operands[0], DImode)
      && GET_CODE (operands[1]) == SYMBOL_REF
      && SYMBOL_REF_FLAG (operands[1]))
    {
      char *name = XSTR (operands[1], 0);

      if (name[0] != '*'
          || strncmp (name + 1, LOCAL_LABEL_PREFIX,
                      sizeof LOCAL_LABEL_PREFIX - 1) != 0)
        {
          rtx base_reg;

          if (reload_in_progress || reload_completed)
            {
              /* In movsi we use the constant table here.  However, in
                 this case, we're better off copying $28 into a
                 register and adding, because the constant table entry
                 would be 8 bytes.  */
              base_reg = operands[0];
              emit_move_insn (base_reg,
                              gen_rtx (CONST, DImode,
                                       gen_rtx (REG, DImode,
                                                GP_REG_FIRST + 28)));
            }
          else
            {
              base_reg = gen_reg_rtx (Pmode);
              emit_move_insn (base_reg, mips16_gp_pseudo_reg ());
            }

          emit_move_insn (operands[0],
                          gen_rtx (PLUS, SImode, base_reg,
                                   mips16_gp_offset (operands[1])));
          DONE;
        }
    }

  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], DImode)
      && !register_operand (operands[1], DImode)
      && (TARGET_MIPS16
          || (GET_CODE (operands[1]) != CONST_INT || INTVAL (operands[1]) != 0)
              && operands[1] != CONST0_RTX (DImode)))
    {
      rtx temp = force_reg (DImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; For mips16, we need a special case to handle storing $31 into
;; memory, since we don't have a constraint to match $31.  This
;; instruction can be generated by save_restore_insns.

(define_insn ""
  [(set (match_operand:DI 0 "memory_operand" "R,m")
        (reg:DI 31))]
  "TARGET_MIPS16 && TARGET_64BIT"
  "*
{
  operands[1] = gen_rtx (REG, DImode, 31);
  return mips_move_2words (operands, insn);
}"
  [(set_attr "type"     "store")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2")])

(define_insn "movdi_internal"
  [(set (match_operand:DI 0 "nonimmediate_operand" "=d,d,d,d,R,o,*x,*d,*x")
        (match_operand:DI 1 "general_operand" "d,iF,R,o,d,d,J,*x,*d"))]
  "!TARGET_64BIT && !TARGET_MIPS16
   && (register_operand (operands[0], DImode)
       || register_operand (operands[1], DImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (DImode))"
  "* return mips_move_2words (operands, insn); "
  [(set_attr "type"     "move,arith,load,load,store,store,hilo,hilo,hilo")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2,4,2,4,2,4,2,2,2")])

(define_insn ""
  [(set (match_operand:DI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,R,To,*d")
        (match_operand:DI 1 "general_operand" "d,d,y,K,N,R,To,d,d,*x"))]
  "!TARGET_64BIT && TARGET_MIPS16
   && (register_operand (operands[0], DImode)
       || register_operand (operands[1], DImode))"
  "* return mips_move_2words (operands, insn);"
  [(set_attr "type"     "move,move,move,arith,arith,load,load,store,store,hilo")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2,2,2,2,3,2,4,2,4,2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (match_operand:DI 1 "register_operand" ""))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))"

  [(set (subreg:SI (match_dup 0) 0) (subreg:SI (match_dup 1) 0))
   (set (subreg:SI (match_dup 0) 1) (subreg:SI (match_dup 1) 1))]
  "")

(define_insn "movdi_internal2"
  [(set (match_operand:DI 0 "nonimmediate_operand" "=d,d,d,d,d,d,R,m,*x,*d,*x,*a")
        (match_operand:DI 1 "movdi_operand" "d,S,IKL,Mnis,R,m,dJ,dJ,J,*x,*d,*J"))]
  "TARGET_64BIT && !TARGET_MIPS16
   && (register_operand (operands[0], DImode)
       || se_register_operand (operands[1], DImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (DImode))"
  "* return mips_move_2words (operands, insn); "
  [(set_attr "type"     "move,load,arith,arith,load,load,store,store,hilo,hilo,hilo,hilo")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1,2,1,2,1,2,1,2,1,1,1,2")])

(define_insn ""
  [(set (match_operand:DI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,d,R,m,*d")
        (match_operand:DI 1 "movdi_operand" "d,d,y,K,N,s,R,m,d,d,*x"))]
  "TARGET_64BIT && TARGET_MIPS16
   && (register_operand (operands[0], DImode)
       || se_register_operand (operands[1], DImode))"
  "* return mips_move_2words (operands, insn);"
  [(set_attr "type"     "move,move,move,arith,arith,arith,load,load,store,store,hilo")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (const_int 1)
                 (const_int 1)
                 (if_then_else (match_operand:VOID 1 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 1 "m16_nuimm8_1" "")
                               (const_int 2)
                               (const_int 3))
                 (if_then_else (match_operand:VOID 1 "m16_usym5_4" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)])])

;; On the mips16, we can split ld $r,N($r) into an add and a load,
;; when the original load is a 4 byte instruction but the add and the
;; load are 2 2 byte instructions.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (mem:DI (plus:DI (match_dup 0)
                         (match_operand:DI 1 "const_int_operand" ""))))]
  "TARGET_64BIT && TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) < 0
        && INTVAL (operands[1]) >= -0x10)
       || (INTVAL (operands[1]) >= 32 * 8
           && INTVAL (operands[1]) <= 31 * 8 + 0x8)
       || (INTVAL (operands[1]) >= 0
           && INTVAL (operands[1]) < 32 * 8
           && (INTVAL (operands[1]) & 7) != 0))"
  [(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (mem:DI (plus:DI (match_dup 0) (match_dup 2))))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val < 0)
    operands[2] = GEN_INT (0);
  else if (val >= 32 * 8)
    {
      int off = val & 7;

      operands[1] = GEN_INT (0x8 + off);
      operands[2] = GEN_INT (val - off - 0x8);
    }
  else
    {
      int off = val & 7;

      operands[1] = GEN_INT (off);
      operands[2] = GEN_INT (val - off);
    }
}")

;; Handle input reloads in DImode.
;; This is mainly to handle reloading HILO_REGNUM.  Note that we may
;; see it as the source or the destination, depending upon which way
;; reload handles the instruction.
;; Making the second operand TImode is a trick.  The compiler may
;; reuse the same register for operand 0 and operand 2.  Using TImode
;; gives us two registers, so we can always use the one which is not
;; used.

(define_expand "reload_indi"
  [(set (match_operand:DI 0 "register_operand" "=b")
        (match_operand:DI 1 "movdi_operand" "b"))
   (clobber (match_operand:TI 2 "register_operand" "=&d"))]
  "TARGET_64BIT"
  "
{
  rtx scratch = gen_rtx (REG, DImode,
                         (REGNO (operands[0]) == REGNO (operands[2]) 
                          ? REGNO (operands[2]) + 1
                          : REGNO (operands[2])));

  if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) == HILO_REGNUM)
    {
      if (GET_CODE (operands[1]) == MEM)
        {
          rtx memword, offword, hiword, loword;

          scratch = gen_rtx (REG, SImode, REGNO (scratch));
          memword = change_address (operands[1], SImode, NULL_RTX);
          offword = change_address (adj_offsettable_operand (operands[1], 4),
                                    SImode, NULL_RTX);
          if (BYTES_BIG_ENDIAN)
            {
              hiword = memword;
              loword = offword;
            }
          else
            {
              hiword = offword;
              loword = memword;
            }
          emit_move_insn (scratch, hiword);
          emit_move_insn (gen_rtx (REG, SImode, 64), scratch);
          emit_move_insn (scratch, loword);
          emit_move_insn (gen_rtx (REG, SImode, 65), scratch);
        }
      else
        {
          emit_insn (gen_ashrdi3 (scratch, operands[1], GEN_INT (32)));
          emit_insn (gen_movdi (gen_rtx (REG, DImode, 64), scratch));
          emit_insn (gen_ashldi3 (scratch, operands[1], GEN_INT (32)));
          emit_insn (gen_ashrdi3 (scratch, scratch, GEN_INT (32)));
          emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), scratch));
        }
      DONE;
    }
  if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) == HILO_REGNUM)
    {
      emit_insn (gen_movdi (scratch, gen_rtx (REG, DImode, 65)));
      emit_insn (gen_ashldi3 (scratch, scratch, GEN_INT (32)));
      emit_insn (gen_lshrdi3 (scratch, scratch, GEN_INT (32)));
      emit_insn (gen_movdi (operands[0], gen_rtx (REG, DImode, 64)));
      emit_insn (gen_ashldi3 (operands[0], operands[0], GEN_INT (32)));
      emit_insn (gen_iordi3 (operands[0], operands[0], scratch));
      DONE;
    }
  /* This handles moves between a float register and HI/LO.  */
  emit_move_insn (scratch, operands[1]);
  emit_move_insn (operands[0], scratch);
  DONE;
}")

;; Handle output reloads in DImode.

(define_expand "reload_outdi"
  [(set (match_operand:DI 0 "general_operand" "=b")
        (match_operand:DI 1 "se_register_operand" "b"))
   (clobber (match_operand:DI 2 "register_operand" "=&d"))]
  "TARGET_64BIT"
  "
{
  if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) == HILO_REGNUM)
    {
      emit_insn (gen_ashrdi3 (operands[2], operands[1], GEN_INT (32)));
      emit_insn (gen_movdi (gen_rtx (REG, DImode, 64), operands[2]));
      emit_insn (gen_ashldi3 (operands[2], operands[1], GEN_INT (32)));
      emit_insn (gen_ashrdi3 (operands[2], operands[2], GEN_INT (32)));
      emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), operands[2]));
      DONE;
    }
  if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) == HILO_REGNUM)
    {
      if (GET_CODE (operands[0]) == MEM)
        {
          rtx scratch, memword, offword, hiword, loword;

          scratch = gen_rtx (REG, SImode, REGNO (operands[2]));
          memword = change_address (operands[0], SImode, NULL_RTX);
          offword = change_address (adj_offsettable_operand (operands[0], 4),
                                    SImode, NULL_RTX);
          if (BYTES_BIG_ENDIAN)
            {
              hiword = memword;
              loword = offword;
            }
          else
            {
              hiword = offword;
              loword = memword;
            }
          emit_move_insn (scratch, gen_rtx (REG, SImode, 64));
          emit_move_insn (hiword, scratch);
          emit_move_insn (scratch, gen_rtx (REG, SImode, 65));
          emit_move_insn (loword, scratch);
        }
      else
        {
          emit_insn (gen_movdi (operands[2], gen_rtx (REG, DImode, 65)));
          emit_insn (gen_ashldi3 (operands[2], operands[2], GEN_INT (32)));
          emit_insn (gen_lshrdi3 (operands[2], operands[2], GEN_INT (32)));
          emit_insn (gen_movdi (operands[0], gen_rtx (REG, DImode, 64)));
          emit_insn (gen_ashldi3 (operands[0], operands[0], GEN_INT (32)));
          emit_insn (gen_iordi3 (operands[0], operands[0], operands[2]));
        }
      DONE;
    }
  /* This handles moves between a float register and HI/LO.  */
  emit_move_insn (operands[2], operands[1]);
  emit_move_insn (operands[0], operands[2]);
  DONE;
}")

;; 32-bit Integer moves

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (match_operand:SI 1 "large_int" ""))]
  "!TARGET_DEBUG_D_MODE && !TARGET_MIPS16"
  [(set (match_dup 0)
        (match_dup 2))
   (set (match_dup 0)
        (ior:SI (match_dup 0)
                (match_dup 3)))]
  "
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) & 0xffff0000);
  operands[3] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) & 0x0000ffff);
}")

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.

(define_expand "movsi"
  [(set (match_operand:SI 0 "nonimmediate_operand" "")
        (match_operand:SI 1 "general_operand" ""))]
  ""
  "
{
  if (mips_split_addresses && mips_check_split (operands[1], SImode))
    {
      enum machine_mode mode = GET_MODE (operands[0]);
      rtx tem = ((reload_in_progress | reload_completed)
                 ? operands[0] : gen_reg_rtx (mode));

      emit_insn (gen_rtx (SET, VOIDmode, tem,
                          gen_rtx (HIGH, mode, operands[1])));

      operands[1] = gen_rtx (LO_SUM, mode, tem, operands[1]);
    }

  /* If we are generating embedded PIC code, and we are referring to a
     symbol in the .text section, we must use an offset from the start
     of the function.  */
  if (TARGET_EMBEDDED_PIC
      && (GET_CODE (operands[1]) == LABEL_REF
          || (GET_CODE (operands[1]) == SYMBOL_REF
              && ! SYMBOL_REF_FLAG (operands[1]))))
    {
      rtx temp;

      temp = embedded_pic_offset (operands[1]);
      temp = gen_rtx (PLUS, Pmode, embedded_pic_fnaddr_rtx,
                      force_reg (SImode, temp));
      emit_move_insn (operands[0], force_reg (SImode, temp));
      DONE;
    }

  /* If operands[1] is a constant address invalid for pic, then we need to
     handle it just like LEGITIMIZE_ADDRESS does.  */
  if (flag_pic && pic_address_needs_scratch (operands[1]))
    {
      rtx temp = force_reg (SImode, XEXP (XEXP (operands[1], 0), 0));
      rtx temp2 = XEXP (XEXP (operands[1], 0), 1);

      if (! SMALL_INT (temp2))
        temp2 = force_reg (SImode, temp2);

      emit_move_insn (operands[0], gen_rtx (PLUS, SImode, temp, temp2));
      DONE;
    }

  /* On the mips16, we can handle a GP relative reference by adding in
     $gp.  We need to check the name to see whether this is a string
     constant.  */
  if (TARGET_MIPS16
      && register_operand (operands[0], SImode)
      && GET_CODE (operands[1]) == SYMBOL_REF
      && SYMBOL_REF_FLAG (operands[1]))
    {
      char *name = XSTR (operands[1], 0);

      if (name[0] != '*'
          || strncmp (name + 1, LOCAL_LABEL_PREFIX,
                      sizeof LOCAL_LABEL_PREFIX - 1) != 0)
        {
          rtx base_reg;

          if (reload_in_progress || reload_completed)
            {
              /* We need to reload this address.  In this case we
                 aren't going to have a chance to combine loading the
                 address with the load or store.  That means that we
                 can either generate a 2 byte move followed by a 4
                 byte addition, or a 2 byte load with a 4 byte entry
                 in the constant table.  Since the entry in the
                 constant table might be shared, we're better off, on
                 average, loading the address from the constant table.  */
              emit_move_insn (operands[0],
                              force_const_mem (SImode, operands[1]));
              DONE;
            }

          base_reg = gen_reg_rtx (Pmode);
          emit_move_insn (base_reg, mips16_gp_pseudo_reg ());

          emit_move_insn (operands[0],
                          gen_rtx (PLUS, SImode, base_reg,
                                   mips16_gp_offset (operands[1])));
          DONE;
        }
    }

  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], SImode)
      && !register_operand (operands[1], SImode)
      && (TARGET_MIPS16
          || GET_CODE (operands[1]) != CONST_INT
          || INTVAL (operands[1]) != 0))
    {
      rtx temp = force_reg (SImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; For mips16, we need a special case to handle storing $31 into
;; memory, since we don't have a constraint to match $31.  This
;; instruction can be generated by save_restore_insns.

(define_insn ""
  [(set (match_operand:SI 0 "memory_operand" "R,m")
        (reg:SI 31))]
  "TARGET_MIPS16"
  "*
{
  operands[1] = gen_rtx (REG, SImode, 31);
  return mips_move_1word (operands, insn, FALSE);
}"
  [(set_attr "type"     "store")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2")])

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movsi_internal1"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=d,d,d,d,d,d,R,m,*d,*f*z,*f,*f,*f,*R,*m,*x,*x,*d,*d")
        (match_operand:SI 1 "move_operand" "d,S,IKL,Mnis,R,m,dJ,dJ,*f*z,*d,*f,*R,*m,*f,*f,J,*d,*x,*a"))]
  "TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], SImode)
       || register_operand (operands[1], SImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,load,arith,arith,load,load,store,store,xfer,xfer,move,load,load,store,store,hilo,hilo,hilo,hilo")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2,1,2,1,2,1,2,1,1,1,1,2,1,2,1,1,1,1")])

(define_insn "movsi_internal2"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=d,d,d,d,d,d,R,m,*d,*z,*x,*d,*x,*d")
        (match_operand:SI 1 "move_operand" "d,S,IKL,Mnis,R,m,dJ,dJ,*z,*d,J,*x,*d,*a"))]
  "!TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], SImode)
       || register_operand (operands[1], SImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,load,arith,arith,load,load,store,store,xfer,xfer,hilo,hilo,hilo,hilo")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1,2,1,2,1,2,1,2,1,1,1,1,1,1")])

;; This is the mips16 movsi instruction.  We accept a small integer as
;; the source if the destination is a GP memory reference.  This is
;; because we want the combine pass to turn adding a GP reference to a
;; register into a direct GP reference, but the combine pass will pass
;; in the source as a constant if it finds an equivalent one.  If the
;; instruction is recognized, reload will force the constant back out
;; into a register.

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,d,d,R,m,*d,*d")
        (match_operand:SI 1 "move_operand" "d,d,y,S,K,N,s,R,m,d,d,*x,*a"))]
  "TARGET_MIPS16
   && (register_operand (operands[0], SImode)
       || register_operand (operands[1], SImode)
       || (GET_CODE (operands[0]) == MEM
           && GET_CODE (XEXP (operands[0], 0)) == PLUS
           && GET_CODE (XEXP (XEXP (operands[0], 0), 1)) == CONST
           && mips16_gp_offset_p (XEXP (XEXP (operands[0], 0), 1))
           && GET_CODE (operands[1]) == CONST_INT
           && (SMALL_INT (operands[1])
               || SMALL_INT_UNSIGNED (operands[1]))))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,move,move,load,arith,arith,arith,load,load,store,store,hilo,hilo")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (const_int 1)
                 (const_int 1)
                 (const_int 2)
                 (if_then_else (match_operand:VOID 1 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 1 "m16_nuimm8_1" "")
                               (const_int 2)
                               (const_int 3))
                 (if_then_else (match_operand:VOID 1 "m16_usym8_4" "")
                               (const_int 1)
                               (const_int 2))
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)
                 (const_int 1)])])

;; On the mips16, we can split lw $r,N($r) into an add and a load,
;; when the original load is a 4 byte instruction but the add and the
;; load are 2 2 byte instructions.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (mem:SI (plus:SI (match_dup 0)
                         (match_operand:SI 1 "const_int_operand" ""))))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) < 0
        && INTVAL (operands[1]) >= -0x80)
       || (INTVAL (operands[1]) >= 32 * 4
           && INTVAL (operands[1]) <= 31 * 4 + 0x7c)
       || (INTVAL (operands[1]) >= 0
           && INTVAL (operands[1]) < 32 * 4
           && (INTVAL (operands[1]) & 3) != 0))"
  [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (mem:SI (plus:SI (match_dup 0) (match_dup 2))))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val < 0)
    operands[2] = GEN_INT (0);
  else if (val >= 32 * 4)
    {
      int off = val & 3;

      operands[1] = GEN_INT (0x7c + off);
      operands[2] = GEN_INT (val - off - 0x7c);
    }
  else
    {
      int off = val & 3;

      operands[1] = GEN_INT (off);
      operands[2] = GEN_INT (val - off);
    }
}")

;; On the mips16, we can split a load of certain constants into a load
;; and an add.  This turns a 4 byte instruction into 2 2 byte
;; instructions.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (match_operand:SI 1 "const_int_operand" ""))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && INTVAL (operands[1]) >= 0x100
   && INTVAL (operands[1]) <= 0xff + 0x7f"
  [(set (match_dup 0) (match_dup 1))
   (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 2)))]
  "
{
  int val = INTVAL (operands[1]);

  operands[1] = GEN_INT (0xff);
  operands[2] = GEN_INT (val - 0xff);
}")

;; On the mips16, we can split a load of a negative constant into a
;; load and a neg.  That's what mips_move_1word will generate anyhow.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (match_operand:SI 1 "const_int_operand" ""))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && INTVAL (operands[1]) < 0
   && INTVAL (operands[1]) > - 0x8000"
  [(set (match_dup 0) (match_dup 1))
   (set (match_dup 0) (neg:SI (match_dup 0)))]
  "
{
  operands[1] = GEN_INT (- INTVAL (operands[1]));
}")

;; Reload HILO_REGNUM in SI mode.  This needs a scratch register in
;; order to set the sign bit correctly in the HI register.

(define_expand "reload_outsi"
  [(set (match_operand:SI 0 "general_operand" "=b")
        (match_operand:SI 1 "register_operand" "b"))
   (clobber (match_operand:SI 2 "register_operand" "=&d"))]
  "TARGET_64BIT || TARGET_MIPS16"
  "
{
  if (TARGET_64BIT
      && GET_CODE (operands[0]) == REG && REGNO (operands[0]) == HILO_REGNUM)
    {
      emit_insn (gen_movsi (gen_rtx (REG, SImode, 65), operands[1]));
      emit_insn (gen_ashrsi3 (operands[2], operands[1], GEN_INT (31)));
      emit_insn (gen_movsi (gen_rtx (REG, SImode, 64), operands[2]));
      DONE;
    }
  /* Use a mult to reload LO on mips16.  ??? This is hideous.  */
  if (TARGET_MIPS16
      && GET_CODE (operands[0]) == REG && REGNO (operands[0]) == LO_REGNUM)
    {
      emit_insn (gen_movsi (operands[2], GEN_INT (1)));
      /* This is gen_mulsi3_internal, but we need to fill in the
         scratch registers.  */
      emit_insn (gen_rtx (PARALLEL, VOIDmode,
                          gen_rtvec (3,
                                     gen_rtx (SET, VOIDmode,
                                              operands[0],
                                              gen_rtx (MULT, SImode,
                                                       operands[1],
                                                       operands[2])),
                                     gen_rtx (CLOBBER, VOIDmode,
                                              gen_rtx (REG, SImode, 64)),
                                     gen_rtx (CLOBBER, VOIDmode,
                                              gen_rtx (REG, SImode, 66)))));
      DONE;
    }
  /* FIXME: I don't know how to get a value into the HI register.  */
  if (GET_CODE (operands[0]) == REG && GP_REG_P (operands[0]))
    {
      emit_move_insn (operands[0], operands[1]);
      DONE;
    }
  /* This handles moves between a float register and HI/LO.  */
  emit_move_insn (operands[2], operands[1]);
  emit_move_insn (operands[0], operands[2]);
  DONE;
}")

;; Reload a value into HI or LO.  There is no mthi or mtlo on mips16,
;; so we use a mult.  ??? This is hideous, and we ought to figure out
;; something better.

(define_expand "reload_insi"
  [(set (match_operand:SI 0 "register_operand" "=b")
        (match_operand:SI 1 "register_operand" "b"))
   (clobber (match_operand:SI 2 "register_operand" "=&d"))]
  "TARGET_MIPS16"
  "
{
  if (TARGET_MIPS16
      && GET_CODE (operands[0]) == REG && REGNO (operands[0]) == LO_REGNUM)
    {
      emit_insn (gen_movsi (operands[2], GEN_INT (1)));
      /* This is gen_mulsi3_internal, but we need to fill in the
         scratch registers.  */
      emit_insn (gen_rtx (PARALLEL, VOIDmode,
                          gen_rtvec (3,
                                     gen_rtx (SET, VOIDmode,
                                              operands[0],
                                              gen_rtx (MULT, SImode,
                                                       operands[1],
                                                       operands[2])),
                                     gen_rtx (CLOBBER, VOIDmode,
                                              gen_rtx (REG, SImode, 64)),
                                     gen_rtx (CLOBBER, VOIDmode,
                                              gen_rtx (REG, SImode, 66)))));
      DONE;
    }
  /* FIXME: I don't know how to get a value into the HI register.  */
  emit_move_insn (operands[0], operands[1]);
  DONE;
}")

;; This insn handles moving CCmode values.  It's really just a
;; slightly simplified copy of movsi_internal2, with additional cases
;; to move a condition register to a general register and to move
;; between the general registers and the floating point registers.

(define_insn "movcc"
  [(set (match_operand:CC 0 "nonimmediate_operand" "=d,*d,*d,*d,*R,*m,*d,*f,*f,*f,*f,*R,*m")
        (match_operand:CC 1 "general_operand" "z,*d,*R,*m,*d,*d,*f,*d,*f,*R,*m,*f,*f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,move,load,load,store,store,xfer,xfer,move,load,load,store,store")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2,1,1,2,1,2,1,1,1,1,2,1,2")])

;; Reload condition code registers.  These need scratch registers.

(define_expand "reload_incc"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (match_operand:CC 1 "general_operand" "z"))
   (clobber (match_operand:TF 2 "register_operand" "=&f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "
{
  rtx source;
  rtx fp1, fp2;

  /* This is called when are copying some value into a condition code
     register.  Operand 0 is the condition code register.  Operand 1
     is the source.  Operand 2 is a scratch register; we use TFmode
     because we actually need two floating point registers.  */
  if (! ST_REG_P (true_regnum (operands[0]))
      || ! FP_REG_P (true_regnum (operands[2])))
    abort ();

  /* We need to get the source in SFmode so that the insn is
     recognized.  */
  if (GET_CODE (operands[1]) == MEM)
    source = change_address (operands[1], SFmode, NULL_RTX);
  else if (GET_CODE (operands[1]) == REG || GET_CODE (operands[1]) == SUBREG)
    source = gen_rtx (REG, SFmode, true_regnum (operands[1]));
  else
    source = operands[1];

  fp1 = gen_rtx (REG, SFmode, REGNO (operands[2]));
  fp2 = gen_rtx (REG, SFmode, REGNO (operands[2]) + 1);

  emit_insn (gen_move_insn (fp1, source));
  emit_insn (gen_move_insn (fp2, gen_rtx (REG, SFmode, 0)));
  emit_insn (gen_rtx (SET, VOIDmode, operands[0],
                      gen_rtx (LT, CCmode, fp2, fp1)));

  DONE;
}")

(define_expand "reload_outcc"
  [(set (match_operand:CC 0 "general_operand" "=z")
        (match_operand:CC 1 "register_operand" "z"))
   (clobber (match_operand:CC 2 "register_operand" "=&d"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "
{
  /* This is called when we are copying a condition code register out
     to save it somewhere.  Operand 0 should be the location we are
     going to save it to.  Operand 1 should be the condition code
     register.  Operand 2 should be a scratch general purpose register
     created for us by reload.  The mips_secondary_reload_class
     function should have told reload that we don't need a scratch
     register if the destination is a general purpose register anyhow.  */
  if (ST_REG_P (true_regnum (operands[0]))
      || GP_REG_P (true_regnum (operands[0]))
      || ! ST_REG_P (true_regnum (operands[1]))
      || ! GP_REG_P (true_regnum (operands[2])))
    abort ();

  /* All we have to do is copy the value from the condition code to
     the data register, which movcc can handle, and then store the
     value into the real final destination.  */
  emit_insn (gen_move_insn (operands[2], operands[1]));
  emit_insn (gen_move_insn (operands[0], operands[2]));

  DONE;
}")

;; MIPS4 supports loading and storing a floating point register from
;; the sum of two general registers.  We use two versions for each of
;; these four instructions: one where the two general registers are
;; SImode, and one where they are DImode.  This is because general
;; registers will be in SImode when they hold 32 bit values, but,
;; since the 32 bit values are always sign extended, the [ls][wd]xc1
;; instructions will still work correctly.

;; ??? Perhaps it would be better to support these instructions by
;; modifying GO_IF_LEGITIMATE_ADDRESS and friends.  However, since
;; these instructions can only be used to load and store floating
;; point registers, that would probably cause trouble in reload.

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (mem:SF (plus:SI (match_operand:SI 1 "register_operand" "d")
                         (match_operand:SI 2 "register_operand" "d"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "lwxc1\\t%0,%1(%2)"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f")
        (mem:SF (plus:DI (match_operand:DI 1 "se_register_operand" "d")
                         (match_operand:DI 2 "se_register_operand" "d"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "lwxc1\\t%0,%1(%2)"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (mem:DF (plus:SI (match_operand:SI 1 "register_operand" "d")
                         (match_operand:SI 2 "register_operand" "d"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "ldxc1\\t%0,%1(%2)"
  [(set_attr "type"     "load")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f")
        (mem:DF (plus:DI (match_operand:DI 1 "se_register_operand" "d")
                         (match_operand:DI 2 "se_register_operand" "d"))))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "ldxc1\\t%0,%1(%2)"
  [(set_attr "type"     "load")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (mem:SF (plus:SI (match_operand:SI 1 "register_operand" "d")
                         (match_operand:SI 2 "register_operand" "d")))
        (match_operand:SF 0 "register_operand" "=f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "swxc1\\t%0,%1(%2)"
  [(set_attr "type"     "store")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (mem:SF (plus:DI (match_operand:DI 1 "se_register_operand" "d")
                         (match_operand:DI 2 "se_register_operand" "d")))
        (match_operand:SF 0 "register_operand" "=f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "swxc1\\t%0,%1(%2)"
  [(set_attr "type"     "store")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (mem:DF (plus:SI (match_operand:SI 1 "register_operand" "d")
                         (match_operand:SI 2 "register_operand" "d")))
        (match_operand:DF 0 "register_operand" "=f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "sdxc1\\t%0,%1(%2)"
  [(set_attr "type"     "store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (mem:DF (plus:DI (match_operand:DI 1 "se_register_operand" "d")
                         (match_operand:DI 2 "se_register_operand" "d")))
        (match_operand:DF 0 "register_operand" "=f"))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "sdxc1\\t%0,%1(%2)"
  [(set_attr "type"     "store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1")])

;; 16-bit Integer moves

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.
;; Unsigned loads are used because BYTE_LOADS_ZERO_EXTEND is defined

(define_expand "movhi"
  [(set (match_operand:HI 0 "nonimmediate_operand" "")
        (match_operand:HI 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], HImode)
      && !register_operand (operands[1], HImode)
      && (TARGET_MIPS16
          || (GET_CODE (operands[1]) != CONST_INT
          || INTVAL (operands[1]) != 0)))
    {
      rtx temp = force_reg (HImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movhi_internal1"
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d,d,d,d,R,m,*d,*f,*f*z,*x,*d")
        (match_operand:HI 1 "general_operand"       "d,IK,R,m,dJ,dJ,*f*z,*d,*f,*d,*x"))]
  "TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], HImode)
       || register_operand (operands[1], HImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,arith,load,load,store,store,xfer,xfer,move,hilo,hilo")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1,1,1,2,1,2,1,1,1,1,1")])

(define_insn "movhi_internal2"
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d,d,d,d,R,m,*d,*z,*x,*d")
        (match_operand:HI 1 "general_operand"       "d,IK,R,m,dJ,dJ,*z,*d,*d,*x"))]
  "!TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], HImode)
       || register_operand (operands[1], HImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,arith,load,load,store,store,xfer,xfer,hilo,hilo")
   (set_attr "mode"     "HI")
   (set_attr "length"   "1,1,1,2,1,2,1,1,1,1")])

(define_insn ""
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,R,m,*d")
        (match_operand:HI 1 "general_operand"      "d,d,y,K,N,R,m,d,d,*x"))]
  "TARGET_MIPS16
   && (register_operand (operands[0], HImode)
       || register_operand (operands[1], HImode))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,move,move,arith,arith,load,load,store,store,hilo")
   (set_attr "mode"     "HI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (const_int 1)
                 (const_int 1)
                 (if_then_else (match_operand:VOID 1 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 1 "m16_nuimm8_1" "")
                               (const_int 2)
                               (const_int 3))
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)])])


;; On the mips16, we can split lh $r,N($r) into an add and a load,
;; when the original load is a 4 byte instruction but the add and the
;; load are 2 2 byte instructions.

(define_split
  [(set (match_operand:HI 0 "register_operand" "")
        (mem:SI (plus:SI (match_dup 0)
                         (match_operand:SI 1 "const_int_operand" ""))))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) < 0
        && INTVAL (operands[1]) >= -0x80)
       || (INTVAL (operands[1]) >= 32 * 2
           && INTVAL (operands[1]) <= 31 * 2 + 0x7e)
       || (INTVAL (operands[1]) >= 0
           && INTVAL (operands[1]) < 32 * 2
           && (INTVAL (operands[1]) & 1) != 0))"
  [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (mem:HI (plus:SI (match_dup 0) (match_dup 2))))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val < 0)
    operands[2] = GEN_INT (0);
  else if (val >= 32 * 2)
    {
      int off = val & 1;

      operands[1] = GEN_INT (0x7e + off);
      operands[2] = GEN_INT (val - off - 0x7e);
    }
  else
    {
      int off = val & 1;

      operands[1] = GEN_INT (off);
      operands[2] = GEN_INT (val - off);
    }
}")

;; 8-bit Integer moves

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.
;; Unsigned loads are used because BYTE_LOADS_ZERO_EXTEND is defined

(define_expand "movqi"
  [(set (match_operand:QI 0 "nonimmediate_operand" "")
        (match_operand:QI 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], QImode)
      && !register_operand (operands[1], QImode)
      && (TARGET_MIPS16
          || (GET_CODE (operands[1]) != CONST_INT
          || INTVAL (operands[1]) != 0)))
    {
      rtx temp = force_reg (QImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movqi_internal1"
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d,d,d,d,R,m,*d,*f*z,*f,*x,*d")
        (match_operand:QI 1 "general_operand"       "d,IK,R,m,dJ,dJ,*f*z,*d,*f,*d,*x"))]
  "TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], QImode)
       || register_operand (operands[1], QImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,arith,load,load,store,store,xfer,xfer,move,hilo,hilo")
   (set_attr "mode"     "QI")
   (set_attr "length"   "1,1,1,2,1,2,1,1,1,1,1")])

(define_insn "movqi_internal2"
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d,d,d,d,R,m,*d,*z,*x,*d")
        (match_operand:QI 1 "general_operand"       "d,IK,R,m,dJ,dJ,*z,*d,*d,*x"))]
  "!TARGET_DEBUG_H_MODE && !TARGET_MIPS16
   && (register_operand (operands[0], QImode)
       || register_operand (operands[1], QImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,arith,load,load,store,store,xfer,xfer,hilo,hilo")
   (set_attr "mode"     "QI")
   (set_attr "length"   "1,1,1,2,1,2,1,1,1,1")])

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,R,m,*d")
        (match_operand:QI 1 "general_operand"      "d,d,y,K,N,R,m,d,d,*x"))]
  "TARGET_MIPS16
   && (register_operand (operands[0], QImode)
       || register_operand (operands[1], QImode))"
  "* return mips_move_1word (operands, insn, TRUE);"
  [(set_attr "type"     "move,move,move,arith,arith,load,load,store,store,hilo")
   (set_attr "mode"     "QI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (const_int 1)
                 (const_int 1)
                 (if_then_else (match_operand:VOID 1 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))
                 (if_then_else (match_operand:VOID 1 "m16_nuimm8_1" "")
                               (const_int 2)
                               (const_int 3))
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)
                 (const_int 2)
                 (const_int 1)])])


;; On the mips16, we can split lb $r,N($r) into an add and a load,
;; when the original load is a 4 byte instruction but the add and the
;; load are 2 2 byte instructions.

(define_split
  [(set (match_operand:QI 0 "register_operand" "")
        (mem:QI (plus:SI (match_dup 0)
                         (match_operand:SI 1 "const_int_operand" ""))))]
  "TARGET_MIPS16 && reload_completed
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == CONST_INT
   && ((INTVAL (operands[1]) < 0
        && INTVAL (operands[1]) >= -0x80)
       || (INTVAL (operands[1]) >= 32
           && INTVAL (operands[1]) <= 31 + 0x7f))"
  [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
   (set (match_dup 0) (mem:QI (plus:SI (match_dup 0) (match_dup 2))))]
  "
{
  HOST_WIDE_INT val = INTVAL (operands[1]);

  if (val < 0)
    operands[2] = GEN_INT (0);
  else
    {
      operands[1] = GEN_INT (0x7f);
      operands[2] = GEN_INT (val - 0x7f);
    }
}")

;; 32-bit floating point moves

(define_expand "movsf"
  [(set (match_operand:SF 0 "nonimmediate_operand" "")
        (match_operand:SF 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], SFmode)
      && !register_operand (operands[1], SFmode)
      && (TARGET_MIPS16
          || (GET_CODE (operands[1]) != CONST_INT || INTVAL (operands[1]) != 0)
              && operands[1] != CONST0_RTX (SFmode)))
    {
      rtx temp = force_reg (SFmode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

(define_insn "movsf_internal1"
  [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,f,R,m,*f,*d,*d,*d,*d,*R,*m")
        (match_operand:SF 1 "general_operand" "f,G,R,Fm,fG,fG,*d,*f,*G*d,*R,*F*m,*d,*d"))]
  "TARGET_HARD_FLOAT
   && (register_operand (operands[0], SFmode)
       || register_operand (operands[1], SFmode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (SFmode))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,xfer,load,load,store,store,xfer,xfer,move,load,load,store,store")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1,1,1,2,1,2,1,1,1,1,2,1,2")])


(define_insn "movsf_internal2"
  [(set (match_operand:SF 0 "nonimmediate_operand" "=d,d,d,R,m")
        (match_operand:SF 1 "general_operand" "      Gd,R,Fm,d,d"))]
  "TARGET_SOFT_FLOAT && !TARGET_MIPS16
   && (register_operand (operands[0], SFmode)
       || register_operand (operands[1], SFmode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (SFmode))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,load,load,store,store")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1,1,2,1,2")])

(define_insn ""
  [(set (match_operand:SF 0 "nonimmediate_operand" "=d,y,d,d,d,R,m")
        (match_operand:SF 1 "general_operand"      "d,d,y,R,Fm,d,d"))]
  "TARGET_MIPS16
   && (register_operand (operands[0], SFmode)
       || register_operand (operands[1], SFmode))"
  "* return mips_move_1word (operands, insn, FALSE);"
  [(set_attr "type"     "move,move,move,load,load,store,store")
   (set_attr "mode"     "SF")
   (set_attr "length"   "1,1,1,1,2,1,2")])


;; 64-bit floating point moves

(define_expand "movdf"
  [(set (match_operand:DF 0 "nonimmediate_operand" "")
        (match_operand:DF 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], DFmode)
      && !register_operand (operands[1], DFmode)
      && (TARGET_MIPS16
          || (GET_CODE (operands[1]) != CONST_INT || INTVAL (operands[1]) != 0)
              && operands[1] != CONST0_RTX (DFmode)))
    {
      rtx temp = force_reg (DFmode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

(define_insn "movdf_internal1"
  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,R,To,f,*f,*d,*d,*d,*d,*R,*T")
        (match_operand:DF 1 "general_operand" "f,R,To,fG,fG,F,*d,*f,*d*G,*R,*T*F,*d,*d"))]
  "TARGET_HARD_FLOAT && !(TARGET_FLOAT64 && !TARGET_64BIT)
   && TARGET_DOUBLE_FLOAT
   && (register_operand (operands[0], DFmode)
       || register_operand (operands[1], DFmode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (DFmode))"
  "* return mips_move_2words (operands, insn); "
  [(set_attr "type"     "move,load,load,store,store,load,xfer,xfer,move,load,load,store,store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1,2,4,2,4,4,2,2,2,2,4,2,4")])

(define_insn "movdf_internal1a"
  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,R,R,To,To,f,*d,*d,*d,*To,*R")
        (match_operand:DF 1 "general_operand"      " f,To,f,G,f,G,F,*F,*To,*R,*d,*d"))]
  "TARGET_HARD_FLOAT && (TARGET_FLOAT64 && !TARGET_64BIT)
   && TARGET_DOUBLE_FLOAT
   && (register_operand (operands[0], DFmode)
       || register_operand (operands[1], DFmode))
       || (GET_CODE (operands [0]) == MEM
           && ((GET_CODE (operands[1]) == CONST_INT
                && INTVAL (operands[1]) == 0)
               || operands[1] == CONST0_RTX (DFmode)))"
  "* return mips_move_2words (operands, insn); "
  [(set_attr "type"     "move,load,store,store,store,store,load,load,load,load,store,store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "1,2,1,1,2,2,2,2,2,1,2,1")])

(define_insn "movdf_internal2"
  [(set (match_operand:DF 0 "nonimmediate_operand" "=d,d,d,R,To")
        (match_operand:DF 1 "general_operand" "dG,R,ToF,d,d"))]
  "(TARGET_SOFT_FLOAT || TARGET_SINGLE_FLOAT) && !TARGET_MIPS16
   && (register_operand (operands[0], DFmode)
       || register_operand (operands[1], DFmode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0)
       || operands[1] == CONST0_RTX (DFmode))"
  "* return mips_move_2words (operands, insn); "
  [(set_attr "type"     "move,load,load,store,store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "2,2,4,2,4")])

(define_insn ""
  [(set (match_operand:DF 0 "nonimmediate_operand" "=d,y,d,d,d,R,To")
        (match_operand:DF 1 "general_operand" "d,d,y,R,ToF,d,d"))]
  "TARGET_MIPS16
   && (register_operand (operands[0], DFmode)
       || register_operand (operands[1], DFmode))"
  "* return mips_move_2words (operands, insn);"
  [(set_attr "type"     "move,move,move,load,load,store,store")
   (set_attr "mode"     "DF")
   (set_attr "length"   "2,2,2,2,4,2,4")])

(define_split
  [(set (match_operand:DF 0 "register_operand" "")
        (match_operand:DF 1 "register_operand" ""))]
  "reload_completed && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && GP_REG_P (REGNO (operands[0]))
   && GET_CODE (operands[1]) == REG && GP_REG_P (REGNO (operands[1]))"
  [(set (subreg:SI (match_dup 0) 0) (subreg:SI (match_dup 1) 0))
   (set (subreg:SI (match_dup 0) 1) (subreg:SI (match_dup 1) 1))]
  "")

;; Instructions to load the global pointer register.
;; This is volatile to make sure that the scheduler won't move any symbol_ref
;; uses in front of it.  All symbol_refs implicitly use the gp reg.

(define_insn "loadgp"
  [(set (reg:DI 28)
        (unspec_volatile:DI [(match_operand:DI 0 "address_operand" "")] 2))
   (clobber (reg:DI 1))]
  ""
  "%[lui\\t$1,%%hi(%%neg(%%gp_rel(%a0)))\\n\\taddiu\\t$1,$1,%%lo(%%neg(%%gp_rel(%a0)))\\n\\tdaddu\\t$gp,$1,$25%]"
  [(set_attr "type"     "move")
   (set_attr "mode"     "DI")
   (set_attr "length"   "3")])
\f
;; Block moves, see mips.c for more details.
;; Argument 0 is the destination
;; Argument 1 is the source
;; Argument 2 is the length
;; Argument 3 is the alignment

(define_expand "movstrsi"
  [(parallel [(set (match_operand:BLK 0 "general_operand" "")
                   (match_operand:BLK 1 "general_operand" ""))
              (use (match_operand:SI 2 "arith32_operand" ""))
              (use (match_operand:SI 3 "immediate_operand" ""))])]
  "!TARGET_MIPS16"
  "
{
  if (operands[0])              /* avoid unused code messages */
    {
      expand_block_move (operands);
      DONE;
    }
}")

;; Insn generated by block moves

(define_insn "movstrsi_internal"
  [(set (match_operand:BLK 0 "memory_operand" "=o")     ;; destination
        (match_operand:BLK 1 "memory_operand" "o"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 0))]                                 ;; normal block move
  ""
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NORMAL);"
  [(set_attr "type"     "store")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

;; We need mips16 versions, because an offset from the stack pointer
;; is not offsettable, since the stack pointer can only handle 4 and 8
;; byte loads.

(define_insn ""
  [(set (match_operand:BLK 0 "memory_operand" "=d")     ;; destination
        (match_operand:BLK 1 "memory_operand" "d"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 0))]                                 ;; normal block move
  "TARGET_MIPS16"
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NORMAL);"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

(define_insn ""
  [(set (match_operand:BLK 0 "memory_operand" "=d")     ;; destination
        (match_operand:BLK 1 "memory_operand" "o"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 0))]                                 ;; normal block move
  "TARGET_MIPS16"
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NORMAL);"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

(define_insn ""
  [(set (match_operand:BLK 0 "memory_operand" "=o")     ;; destination
        (match_operand:BLK 1 "memory_operand" "d"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 0))]                                 ;; normal block move
  "TARGET_MIPS16"
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NORMAL);"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

;; Split a block move into 2 parts, the first part is everything
;; except for the last move, and the second part is just the last
;; store, which is exactly 1 instruction (ie, not a usw), so it can
;; fill a delay slot.  This also prevents a bug in delayed branches
;; from showing up, which reuses one of the registers in our clobbers.

(define_split
  [(set (mem:BLK (match_operand:SI 0 "register_operand" ""))
        (mem:BLK (match_operand:SI 1 "register_operand" "")))
   (clobber (match_operand:SI 4 "register_operand" ""))
   (clobber (match_operand:SI 5 "register_operand" ""))
   (clobber (match_operand:SI 6 "register_operand" ""))
   (clobber (match_operand:SI 7 "register_operand" ""))
   (use (match_operand:SI 2 "small_int" ""))
   (use (match_operand:SI 3 "small_int" ""))
   (use (const_int 0))]

  "reload_completed && !TARGET_DEBUG_D_MODE && INTVAL (operands[2]) > 0"

  ;; All but the last move
  [(parallel [(set (mem:BLK (match_dup 0))
                   (mem:BLK (match_dup 1)))
              (clobber (match_dup 4))
              (clobber (match_dup 5))
              (clobber (match_dup 6))
              (clobber (match_dup 7))
              (use (match_dup 2))
              (use (match_dup 3))
              (use (const_int 1))])

   ;; The last store, so it can fill a delay slot
   (parallel [(set (mem:BLK (match_dup 0))
                   (mem:BLK (match_dup 1)))
              (clobber (match_dup 4))
              (clobber (match_dup 5))
              (clobber (match_dup 6))
              (clobber (match_dup 7))
              (use (match_dup 2))
              (use (match_dup 3))
              (use (const_int 2))])]

  "")

(define_insn "movstrsi_internal2"
  [(set (match_operand:BLK 0 "memory_operand" "=o")     ;; destination
        (match_operand:BLK 1 "memory_operand" "o"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 1))]                                 ;; all but last store
  ""
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NOT_LAST);"
  [(set_attr "type"     "store")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

(define_insn ""
  [(set (match_operand:BLK 0 "memory_operand" "=d")     ;; destination
        (match_operand:BLK 1 "memory_operand" "d"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 1))]                                 ;; all but last store
  "TARGET_MIPS16"
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_NOT_LAST);"
  [(set_attr "type"     "multi")
   (set_attr "mode"     "none")
   (set_attr "length"   "20")])

(define_insn "movstrsi_internal3"
  [(set (match_operand:BLK 0 "memory_operand" "=Ro")    ;; destination
        (match_operand:BLK 1 "memory_operand" "Ro"))    ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 2))]                                 ;; just last store of block move
  ""
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_LAST);"
  [(set_attr "type"     "store")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:BLK 0 "memory_operand" "=d")     ;; destination
        (match_operand:BLK 1 "memory_operand" "d"))     ;; source
   (clobber (match_scratch:SI 4 "=&d"))                 ;; temp 1
   (clobber (match_scratch:SI 5 "=&d"))                 ;; temp 2
   (clobber (match_scratch:SI 6 "=&d"))                 ;; temp 3
   (clobber (match_scratch:SI 7 "=&d"))                 ;; temp 4
   (use (match_operand:SI 2 "small_int" "I"))           ;; # bytes to move
   (use (match_operand:SI 3 "small_int" "I"))           ;; alignment
   (use (const_int 2))]                                 ;; just last store of block move
  "TARGET_MIPS16"
  "* return output_block_move (insn, operands, 4, BLOCK_MOVE_LAST);"
  [(set_attr "type"     "store")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

\f
;;
;;  ....................
;;
;;      SHIFTS
;;
;;  ....................

;; Many of these instructions uses trivial define_expands, because we
;; want to use a different set of constraints when TARGET_MIPS16.

(define_expand "ashlsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ashift:SI (match_operand:SI 1 "register_operand" "d")
                   (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "
{
  /* On the mips16, a shift of more than 8 is a four byte instruction,
     so, for a shift between 8 and 16, it is just as fast to do two
     shifts of 8 or less.  If there is a lot of shifting going on, we
     may win in CSE.  Otherwise combine will put the shifts back
     together again.  This can be called by function_arg, so we must
     be careful not to allocate a new register if we've reached the
     reload pass.  */
  if (TARGET_MIPS16
      && optimize
      && GET_CODE (operands[2]) == CONST_INT
      && INTVAL (operands[2]) > 8
      && INTVAL (operands[2]) <= 16
      && ! reload_in_progress
      && ! reload_completed)
    {
      rtx temp = gen_reg_rtx (SImode);

      emit_insn (gen_ashlsi3_internal2 (temp, operands[1], GEN_INT (8)));
      emit_insn (gen_ashlsi3_internal2 (operands[0], temp,
                                        GEN_INT (INTVAL (operands[2]) - 8)));
      DONE;
    }
}")

(define_insn "ashlsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ashift:SI (match_operand:SI 1 "register_operand" "d")
                   (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);

  return \"sll\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "ashlsi3_internal2"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (ashift:SI (match_operand:SI 1 "register_operand" "0,d")
                   (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"sll\\t%0,%2\";

  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);

  return \"sll\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])

;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (ashift:SI (match_operand:SI 1 "register_operand" "")
                   (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (ashift:SI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (ashift:SI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

(define_expand "ashldi3"
  [(parallel [(set (match_operand:DI 0 "register_operand" "")
                   (ashift:DI (match_operand:DI 1 "se_register_operand" "")
                              (match_operand:SI 2 "arith_operand" "")))
              (clobber (match_dup  3))])]
  "TARGET_64BIT || (!TARGET_DEBUG_G_MODE && !TARGET_MIPS16)"
  "
{
  if (TARGET_64BIT)
    {
      /* On the mips16, a shift of more than 8 is a four byte
         instruction, so, for a shift between 8 and 16, it is just as
         fast to do two shifts of 8 or less.  If there is a lot of
         shifting going on, we may win in CSE.  Otherwise combine will
         put the shifts back together again.  This can be called by
         function_arg, so we must be careful not to allocate a new
         register if we've reached the reload pass.  */
      if (TARGET_MIPS16
          && optimize
          && GET_CODE (operands[2]) == CONST_INT
          && INTVAL (operands[2]) > 8
          && INTVAL (operands[2]) <= 16
          && ! reload_in_progress
          && ! reload_completed)
        {
          rtx temp = gen_reg_rtx (DImode);

          emit_insn (gen_ashldi3_internal4 (temp, operands[1], GEN_INT (8)));
          emit_insn (gen_ashldi3_internal4 (operands[0], temp,
                                            GEN_INT (INTVAL (operands[2]) - 8)));
          DONE;
        }

      emit_insn (gen_ashldi3_internal4 (operands[0], operands[1],
                                        operands[2]));
      DONE;
    }

  operands[3] = gen_reg_rtx (SImode);
}")


(define_insn "ashldi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=&d")
        (ashift:DI (match_operand:DI 1 "register_operand" "d")
                   (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "* 
{
  operands[4] = const0_rtx;
  dslots_jump_total += 3;
  dslots_jump_filled += 2;

  return \"sll\\t%3,%2,26\\n\\
\\tbgez\\t%3,1f\\n\\
\\tsll\\t%M0,%L1,%2\\n\\
\\t%(b\\t3f\\n\\
\\tmove\\t%L0,%z4%)\\n\\
\\n\\
1:\\n\\
\\t%(beq\\t%3,%z4,2f\\n\\
\\tsll\\t%M0,%M1,%2%)\\n\\
\\n\\
\\tsubu\\t%3,%z4,%2\\n\\
\\tsrl\\t%3,%L1,%3\\n\\
\\tor\\t%M0,%M0,%3\\n\\
2:\\n\\
\\tsll\\t%L0,%L1,%2\\n\\
3:\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "12")])


(define_insn "ashldi3_internal2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashift:DI (match_operand:DI 1 "register_operand" "d")
                   (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && (INTVAL (operands[2]) & 32) != 0"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);
  operands[4] = const0_rtx;
  return \"sll\\t%M0,%L1,%2\;move\\t%L0,%z4\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashift:DI (match_operand:DI 1 "register_operand" "")
                   (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 1) (ashift:SI (subreg:SI (match_dup 1) 0) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 0) (const_int 0))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashift:DI (match_operand:DI 1 "register_operand" "")
                   (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 0) (ashift:SI (subreg:SI (match_dup 1) 1) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 1) (const_int 0))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_insn "ashldi3_internal3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashift:DI (match_operand:DI 1 "register_operand" "d")
                   (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"
  "*
{
  int amount = INTVAL (operands[2]);

  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = const0_rtx;
  operands[5] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));

  return \"sll\\t%M0,%M1,%2\;srl\\t%3,%L1,%5\;or\\t%M0,%M0,%3\;sll\\t%L0,%L1,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashift:DI (match_operand:DI 1 "register_operand" "")
                   (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 1)
        (ashift:SI (subreg:SI (match_dup 1) 1)
                   (match_dup 2)))

   (set (match_dup 3)
        (lshiftrt:SI (subreg:SI (match_dup 1) 0)
                     (match_dup 4)))

   (set (subreg:SI (match_dup 0) 1)
        (ior:SI (subreg:SI (match_dup 0) 1)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 0)
        (ashift:SI (subreg:SI (match_dup 1) 0)
                   (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashift:DI (match_operand:DI 1 "register_operand" "")
                   (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 0)
        (ashift:SI (subreg:SI (match_dup 1) 0)
                   (match_dup 2)))

   (set (match_dup 3)
        (lshiftrt:SI (subreg:SI (match_dup 1) 1)
                     (match_dup 4)))

   (set (subreg:SI (match_dup 0) 0)
        (ior:SI (subreg:SI (match_dup 0) 0)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 1)
        (ashift:SI (subreg:SI (match_dup 1) 1)
                   (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_insn "ashldi3_internal4"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashift:DI (match_operand:DI 1 "se_register_operand" "d")
                   (match_operand:SI 2 "arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsll\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (ashift:DI (match_operand:DI 1 "se_register_operand" "0,d")
                   (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"dsll\\t%0,%2\";

  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsll\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])


;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashift:DI (match_operand:DI 1 "register_operand" "")
                   (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (ashift:DI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (ashift:DI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

(define_expand "ashrsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "
{
  /* On the mips16, a shift of more than 8 is a four byte instruction,
     so, for a shift between 8 and 16, it is just as fast to do two
     shifts of 8 or less.  If there is a lot of shifting going on, we
     may win in CSE.  Otherwise combine will put the shifts back
     together again.  */
  if (TARGET_MIPS16
      && optimize
      && GET_CODE (operands[2]) == CONST_INT
      && INTVAL (operands[2]) > 8
      && INTVAL (operands[2]) <= 16)
    {
      rtx temp = gen_reg_rtx (SImode);

      emit_insn (gen_ashrsi3_internal2 (temp, operands[1], GEN_INT (8)));
      emit_insn (gen_ashrsi3_internal2 (operands[0], temp,
                                        GEN_INT (INTVAL (operands[2]) - 8)));
      DONE;
    }
}")

(define_insn "ashrsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);

  return \"sra\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "ashrsi3_internal2"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "0,d")
                     (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"sra\\t%0,%2\";

  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);

  return \"sra\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])


;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "")
                     (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (ashiftrt:SI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

(define_expand "ashrdi3"
  [(parallel [(set (match_operand:DI 0 "register_operand" "")
                   (ashiftrt:DI (match_operand:DI 1 "se_register_operand" "")
                                (match_operand:SI 2 "arith_operand" "")))
              (clobber (match_dup  3))])]
  "TARGET_64BIT || (!TARGET_DEBUG_G_MODE && !TARGET_MIPS16)"
  "
{
  if (TARGET_64BIT)
    {
      /* On the mips16, a shift of more than 8 is a four byte
         instruction, so, for a shift between 8 and 16, it is just as
         fast to do two shifts of 8 or less.  If there is a lot of
         shifting going on, we may win in CSE.  Otherwise combine will
         put the shifts back together again.  */
      if (TARGET_MIPS16
          && optimize
          && GET_CODE (operands[2]) == CONST_INT
          && INTVAL (operands[2]) > 8
          && INTVAL (operands[2]) <= 16)
        {
          rtx temp = gen_reg_rtx (DImode);

          emit_insn (gen_ashrdi3_internal4 (temp, operands[1], GEN_INT (8)));
          emit_insn (gen_ashrdi3_internal4 (operands[0], temp,
                                            GEN_INT (INTVAL (operands[2]) - 8)));
          DONE;
        }

      emit_insn (gen_ashrdi3_internal4 (operands[0], operands[1],
                                        operands[2]));
      DONE;
    }

  operands[3] = gen_reg_rtx (SImode);
}")


(define_insn "ashrdi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=&d")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "d")
                     (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "* 
{
  operands[4] = const0_rtx;
  dslots_jump_total += 3;
  dslots_jump_filled += 2;

  return \"sll\\t%3,%2,26\\n\\
\\tbgez\\t%3,1f\\n\\
\\tsra\\t%L0,%M1,%2\\n\\
\\t%(b\\t3f\\n\\
\\tsra\\t%M0,%M1,31%)\\n\\
\\n\\
1:\\n\\
\\t%(beq\\t%3,%z4,2f\\n\\
\\tsrl\\t%L0,%L1,%2%)\\n\\
\\n\\
\\tsubu\\t%3,%z4,%2\\n\\
\\tsll\\t%3,%M1,%3\\n\\
\\tor\\t%L0,%L0,%3\\n\\
2:\\n\\
\\tsra\\t%M0,%M1,%2\\n\\
3:\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "12")])


(define_insn "ashrdi3_internal2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "d")
                     (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && (INTVAL (operands[2]) & 32) != 0"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);
  return \"sra\\t%L0,%M1,%2\;sra\\t%M0,%M1,31\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 0) (ashiftrt:SI (subreg:SI (match_dup 1) 1) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 1) (ashiftrt:SI (subreg:SI (match_dup 1) 1) (const_int 31)))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 1) (ashiftrt:SI (subreg:SI (match_dup 1) 0) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 0) (ashiftrt:SI (subreg:SI (match_dup 1) 0) (const_int 31)))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_insn "ashrdi3_internal3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "d")
                     (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"
  "*
{
  int amount = INTVAL (operands[2]);

  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));

  return \"srl\\t%L0,%L1,%2\;sll\\t%3,%M1,%4\;or\\t%L0,%L0,%3\;sra\\t%M0,%M1,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 0)
        (lshiftrt:SI (subreg:SI (match_dup 1) 0)
                     (match_dup 2)))

   (set (match_dup 3)
        (ashift:SI (subreg:SI (match_dup 1) 1)
                   (match_dup 4)))

   (set (subreg:SI (match_dup 0) 0)
        (ior:SI (subreg:SI (match_dup 0) 0)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 1)
        (ashiftrt:SI (subreg:SI (match_dup 1) 1)
                     (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 1)
        (lshiftrt:SI (subreg:SI (match_dup 1) 1)
                     (match_dup 2)))

   (set (match_dup 3)
        (ashift:SI (subreg:SI (match_dup 1) 0)
                   (match_dup 4)))

   (set (subreg:SI (match_dup 0) 1)
        (ior:SI (subreg:SI (match_dup 0) 1)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 0)
        (ashiftrt:SI (subreg:SI (match_dup 1) 0)
                     (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_insn "ashrdi3_internal4"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ashiftrt:DI (match_operand:DI 1 "se_register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsra\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (ashiftrt:DI (match_operand:DI 1 "se_register_operand" "0,0")
                     (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsra\\t%0,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])

;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (ashiftrt:DI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (ashiftrt:DI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

(define_expand "lshrsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "
{
  /* On the mips16, a shift of more than 8 is a four byte instruction,
     so, for a shift between 8 and 16, it is just as fast to do two
     shifts of 8 or less.  If there is a lot of shifting going on, we
     may win in CSE.  Otherwise combine will put the shifts back
     together again.  */
  if (TARGET_MIPS16
      && optimize
      && GET_CODE (operands[2]) == CONST_INT
      && INTVAL (operands[2]) > 8
      && INTVAL (operands[2]) <= 16)
    {
      rtx temp = gen_reg_rtx (SImode);

      emit_insn (gen_lshrsi3_internal2 (temp, operands[1], GEN_INT (8)));
      emit_insn (gen_lshrsi3_internal2 (operands[0], temp,
                                        GEN_INT (INTVAL (operands[2]) - 8)));
      DONE;
    }
}")

(define_insn "lshrsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);

  return \"srl\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "lshrsi3_internal2"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "0,d")
                     (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_MIPS16"
  "*
{
  if (which_alternative == 0)
    return \"srl\\t%0,%2\";

  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);

  return \"srl\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])


;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "")
                     (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (lshiftrt:SI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (lshiftrt:SI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

;; If we load a byte on the mips16 as a bitfield, the resulting
;; sequence of instructions is too complicated for combine, because it
;; involves four instructions: a load, a shift, a constant load into a
;; register, and an and (the key problem here is that the mips16 does
;; not have and immediate).  We recognize a shift of a load in order
;; to make it simple enough for combine to understand.

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "d,d")
        (lshiftrt:SI (match_operand:SI 1 "memory_operand" "R,m")
                     (match_operand:SI 2 "immediate_operand" "I,I")))]
  "TARGET_MIPS16"
  "lw\\t%0,%1\;srl\\t%0,%2"
  [(set_attr "type"     "load")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 2)
                               (const_int 3))
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 3)
                               (const_int 4))])])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (lshiftrt:SI (match_operand:SI 1 "memory_operand" "")
                     (match_operand:SI 2 "immediate_operand" "")))]
  "TARGET_MIPS16"
  [(set (match_dup 0) (match_dup 1))
   (set (match_dup 0) (lshiftrt:SI (match_dup 0) (match_dup 2)))]
  "")

(define_expand "lshrdi3"
  [(parallel [(set (match_operand:DI 0 "register_operand" "")
                   (lshiftrt:DI (match_operand:DI 1 "se_register_operand" "")
                                (match_operand:SI 2 "arith_operand" "")))
              (clobber (match_dup  3))])]
  "TARGET_64BIT || (!TARGET_DEBUG_G_MODE && !TARGET_MIPS16)"
  "
{
  if (TARGET_64BIT)
    {
      /* On the mips16, a shift of more than 8 is a four byte
         instruction, so, for a shift between 8 and 16, it is just as
         fast to do two shifts of 8 or less.  If there is a lot of
         shifting going on, we may win in CSE.  Otherwise combine will
         put the shifts back together again.  */
      if (TARGET_MIPS16
          && optimize
          && GET_CODE (operands[2]) == CONST_INT
          && INTVAL (operands[2]) > 8
          && INTVAL (operands[2]) <= 16)
        {
          rtx temp = gen_reg_rtx (DImode);

          emit_insn (gen_lshrdi3_internal4 (temp, operands[1], GEN_INT (8)));
          emit_insn (gen_lshrdi3_internal4 (operands[0], temp,
                                            GEN_INT (INTVAL (operands[2]) - 8)));
          DONE;
        }

      emit_insn (gen_lshrdi3_internal4 (operands[0], operands[1],
                                        operands[2]));
      DONE;
    }

  operands[3] = gen_reg_rtx (SImode);
}")


(define_insn "lshrdi3_internal"
  [(set (match_operand:DI 0 "register_operand" "=&d")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "d")
                     (match_operand:SI 2 "register_operand" "d")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16"
  "* 
{
  operands[4] = const0_rtx;
  dslots_jump_total += 3;
  dslots_jump_filled += 2;

  return \"sll\\t%3,%2,26\\n\\
\\tbgez\\t%3,1f\\n\\
\\tsrl\\t%L0,%M1,%2\\n\\
\\t%(b\\t3f\\n\\
\\tmove\\t%M0,%z4%)\\n\\
\\n\\
1:\\n\\
\\t%(beq\\t%3,%z4,2f\\n\\
\\tsrl\\t%L0,%L1,%2%)\\n\\
\\n\\
\\tsubu\\t%3,%z4,%2\\n\\
\\tsll\\t%3,%M1,%3\\n\\
\\tor\\t%L0,%L0,%3\\n\\
2:\\n\\
\\tsrl\\t%M0,%M1,%2\\n\\
3:\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "12")])


(define_insn "lshrdi3_internal2"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "d")
                     (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && (INTVAL (operands[2]) & 32) != 0"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);
  operands[4] = const0_rtx;
  return \"srl\\t%L0,%M1,%2\;move\\t%M0,%z4\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 0) (lshiftrt:SI (subreg:SI (match_dup 1) 1) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 1) (const_int 0))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 32) != 0"

  [(set (subreg:SI (match_dup 0) 1) (lshiftrt:SI (subreg:SI (match_dup 1) 0) (match_dup 2)))
   (set (subreg:SI (match_dup 0) 0) (const_int 0))]

  "operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) & 0x1f);")


(define_insn "lshrdi3_internal3"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "d")
                   (match_operand:SI 2 "small_int" "IJK")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_64BIT && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"
  "*
{
  int amount = INTVAL (operands[2]);

  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));

  return \"srl\\t%L0,%L1,%2\;sll\\t%3,%M1,%4\;or\\t%L0,%L0,%3\;srl\\t%M0,%M1,%2\";
}"
  [(set_attr "type"     "darith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && !WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 0)
        (lshiftrt:SI (subreg:SI (match_dup 1) 0)
                     (match_dup 2)))

   (set (match_dup 3)
        (ashift:SI (subreg:SI (match_dup 1) 1)
                   (match_dup 4)))

   (set (subreg:SI (match_dup 0) 0)
        (ior:SI (subreg:SI (match_dup 0) 0)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 1)
        (lshiftrt:SI (subreg:SI (match_dup 1) 1)
                     (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "small_int" "")))
   (clobber (match_operand:SI 3 "register_operand" ""))]
  "reload_completed && WORDS_BIG_ENDIAN && !TARGET_64BIT
   && !TARGET_DEBUG_D_MODE && !TARGET_DEBUG_G_MODE && !TARGET_MIPS16
   && GET_CODE (operands[0]) == REG && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
   && GET_CODE (operands[1]) == REG && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
   && (INTVAL (operands[2]) & 63) < 32
   && (INTVAL (operands[2]) & 63) != 0"

  [(set (subreg:SI (match_dup 0) 1)
        (lshiftrt:SI (subreg:SI (match_dup 1) 1)
                     (match_dup 2)))

   (set (match_dup 3)
        (ashift:SI (subreg:SI (match_dup 1) 0)
                   (match_dup 4)))

   (set (subreg:SI (match_dup 0) 1)
        (ior:SI (subreg:SI (match_dup 0) 1)
                (match_dup 3)))

   (set (subreg:SI (match_dup 0) 0)
        (lshiftrt:SI (subreg:SI (match_dup 1) 0)
                     (match_dup 2)))]
  "
{
  int amount = INTVAL (operands[2]);
  operands[2] = gen_rtx (CONST_INT, VOIDmode, (amount & 31));
  operands[4] = gen_rtx (CONST_INT, VOIDmode, ((-amount) & 31));
}")


(define_insn "lshrdi3_internal4"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (lshiftrt:DI (match_operand:DI 1 "se_register_operand" "d")
                     (match_operand:SI 2 "arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsrl\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (lshiftrt:DI (match_operand:DI 1 "se_register_operand" "0,0")
                     (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);

  return \"dsrl\\t%0,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm3_b" "")
                               (const_int 1)
                               (const_int 2))])])

;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
                     (match_operand:SI 2 "const_int_operand" "")))]
  "TARGET_MIPS16
   && reload_completed
   && GET_CODE (operands[2]) == CONST_INT
   && INTVAL (operands[2]) > 8
   && INTVAL (operands[2]) <= 16"
  [(set (match_dup 0) (lshiftrt:DI (match_dup 1) (const_int 8)))
   (set (match_dup 0) (lshiftrt:DI (match_dup 0) (match_dup 2)))]
"
{
  operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
}")

\f
;;
;;  ....................
;;
;;      COMPARISONS
;;
;;  ....................

;; Flow here is rather complex:
;;
;;  1)  The cmp{si,di,sf,df} routine is called.  It deposits the
;;      arguments into the branch_cmp array, and the type into
;;      branch_type.  No RTL is generated.
;;
;;  2)  The appropriate branch define_expand is called, which then
;;      creates the appropriate RTL for the comparison and branch.
;;      Different CC modes are used, based on what type of branch is
;;      done, so that we can constrain things appropriately.  There
;;      are assumptions in the rest of GCC that break if we fold the
;;      operands into the branchs for integer operations, and use cc0
;;      for floating point, so we use the fp status register instead.
;;      If needed, an appropriate temporary is created to hold the
;;      of the integer compare.

(define_expand "cmpsi"
  [(set (cc0)
        (compare:CC (match_operand:SI 0 "register_operand" "")
                    (match_operand:SI 1 "arith_operand" "")))]
  ""
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = operands[1];
      branch_type = CMP_SI;
      DONE;
    }
}")

(define_expand "tstsi"
  [(set (cc0)
        (match_operand:SI 0 "register_operand" ""))]
  ""
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = const0_rtx;
      branch_type = CMP_SI;
      DONE;
    }
}")

(define_expand "cmpdi"
  [(set (cc0)
        (compare:CC (match_operand:DI 0 "se_register_operand" "")
                    (match_operand:DI 1 "se_arith_operand" "")))]
  "TARGET_64BIT"
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = operands[1];
      branch_type = CMP_DI;
      DONE;
    }
}")

(define_expand "tstdi"
  [(set (cc0)
        (match_operand:DI 0 "se_register_operand" ""))]
  "TARGET_64BIT"
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = const0_rtx;
      branch_type = CMP_DI;
      DONE;
    }
}")

(define_expand "cmpdf"
  [(set (cc0)
        (compare:CC (match_operand:DF 0 "register_operand" "")
                    (match_operand:DF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = operands[1];
      branch_type = CMP_DF;
      DONE;
    }
}")

(define_expand "cmpsf"
  [(set (cc0)
        (compare:CC (match_operand:SF 0 "register_operand" "")
                    (match_operand:SF 1 "register_operand" "")))]
  "TARGET_HARD_FLOAT"
  "
{
  if (operands[0])              /* avoid unused code message */
    {
      branch_cmp[0] = operands[0];
      branch_cmp[1] = operands[1];
      branch_type = CMP_SF;
      DONE;
    }
}")

\f
;;
;;  ....................
;;
;;      CONDITIONAL BRANCHES
;;
;;  ....................

(define_insn "branch_fp_ne"
  [(set (pc)
        (if_then_else (ne:CC (match_operand:CC 0 "register_operand" "z")
                             (const_int 0))
                      (match_operand 1 "pc_or_label_operand" "")
                      (match_operand 2 "pc_or_label_operand" "")))]
  "TARGET_HARD_FLOAT"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  return (operands[1] != pc_rtx) ? \"%*bc1t%?\\t%Z0%1\" : \"%*bc1f%?\\t%Z0%2\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "branch_fp_eq"
  [(set (pc)
        (if_then_else (eq:CC (match_operand:CC 0 "register_operand" "z")
                             (const_int 0))
                      (match_operand 1 "pc_or_label_operand" "")
                      (match_operand 2 "pc_or_label_operand" "")))]
  "TARGET_HARD_FLOAT"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  return (operands[1] != pc_rtx) ? \"%*bc1f%?\\t%Z0%1\" : \"%*bc1t%?\\t%Z0%2\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "branch_zero"
  [(set (pc)
        (if_then_else (match_operator:SI 0 "cmp_op"
                                         [(match_operand:SI 1 "register_operand" "d")
                                          (const_int 0)])
        (match_operand 2 "pc_or_label_operand" "")
        (match_operand 3 "pc_or_label_operand" "")))]
  "!TARGET_MIPS16"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  if (operands[2] != pc_rtx)
    {                           /* normal jump */
      switch (GET_CODE (operands[0]))
        {
        case EQ:  return \"%*beq%?\\t%z1,%.,%2\";
        case NE:  return \"%*bne%?\\t%z1,%.,%2\";
        case GTU: return \"%*bne%?\\t%z1,%.,%2\";
        case LEU: return \"%*beq%?\\t%z1,%.,%2\";
        case GEU: return \"%*j\\t%2\";
        case LTU: return \"%*bne%?\\t%.,%.,%2\";
        }

      return \"%*b%C0z%?\\t%z1,%2\";
    }
  else
    {                           /* inverted jump */
      switch (GET_CODE (operands[0]))
        {
        case EQ:  return \"%*bne%?\\t%z1,%.,%3\";
        case NE:  return \"%*beq%?\\t%z1,%.,%3\";
        case GTU: return \"%*beq%?\\t%z1,%.,%3\";
        case LEU: return \"%*bne%?\\t%z1,%.,%3\";
        case GEU: return \"%*beq%?\\t%.,%.,%3\";
        case LTU: return \"%*j\\t%3\";
        }

      return \"%*b%N0z%?\\t%z1,%3\";
    }
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])


(define_insn ""
  [(set (pc)
        (if_then_else (match_operator:SI 0 "equality_op"
                                         [(match_operand:SI 1 "register_operand" "d,t")
                                          (const_int 0)])
        (match_operand 2 "pc_or_label_operand" "")
        (match_operand 3 "pc_or_label_operand" "")))]
  "TARGET_MIPS16"
  "*
{
  if (operands[2] != pc_rtx)
    {
      if (which_alternative == 0)
        return \"%*b%C0z\\t%1,%2\";
      else
        return \"%*bt%C0z\\t%2\";
    }
  else
    {
      if (which_alternative == 0)
        return \"%*b%N0z\\t%1,%3\";
      else
        return \"%*bt%N0z\\t%3\";
    }
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "branch_zero_di"
  [(set (pc)
        (if_then_else (match_operator:DI 0 "cmp_op"
                                         [(match_operand:DI 1 "se_register_operand" "d")
                                          (const_int 0)])
        (match_operand 2 "pc_or_label_operand" "")
        (match_operand 3 "pc_or_label_operand" "")))]
  "!TARGET_MIPS16"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  if (operands[2] != pc_rtx)
    {                           /* normal jump */
      switch (GET_CODE (operands[0]))
        {
        case EQ:  return \"%*beq%?\\t%z1,%.,%2\";
        case NE:  return \"%*bne%?\\t%z1,%.,%2\";
        case GTU: return \"%*bne%?\\t%z1,%.,%2\";
        case LEU: return \"%*beq%?\\t%z1,%.,%2\";
        case GEU: return \"%*j\\t%2\";
        case LTU: return \"%*bne%?\\t%.,%.,%2\";
        }

      return \"%*b%C0z%?\\t%z1,%2\";
    }
  else
    {                           /* inverted jump */
      switch (GET_CODE (operands[0]))
        {
        case EQ:  return \"%*bne%?\\t%z1,%.,%3\";
        case NE:  return \"%*beq%?\\t%z1,%.,%3\";
        case GTU: return \"%*beq%?\\t%z1,%.,%3\";
        case LEU: return \"%*bne%?\\t%z1,%.,%3\";
        case GEU: return \"%*beq%?\\t%.,%.,%3\";
        case LTU: return \"%*j\\t%3\";
        }

      return \"%*b%N0z%?\\t%z1,%3\";
    }
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (pc)
        (if_then_else (match_operator:DI 0 "equality_op"
                                         [(match_operand:DI 1 "se_register_operand" "d,t")
                                          (const_int 0)])
        (match_operand 2 "pc_or_label_operand" "")
        (match_operand 3 "pc_or_label_operand" "")))]
  "TARGET_MIPS16"
  "*
{
  if (operands[2] != pc_rtx)
    {
      if (which_alternative == 0)
        return \"%*b%C0z\\t%1,%2\";
      else
        return \"%*bt%C0z\\t%2\";
    }
  else
    {
      if (which_alternative == 0)
        return \"%*b%N0z\\t%1,%3\";
      else
        return \"%*bt%N0z\\t%3\";
    }
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])


(define_insn "branch_equality"
  [(set (pc)
        (if_then_else (match_operator:SI 0 "equality_op"
                                         [(match_operand:SI 1 "register_operand" "d")
                                          (match_operand:SI 2 "register_operand" "d")])
        (match_operand 3 "pc_or_label_operand" "")
        (match_operand 4 "pc_or_label_operand" "")))]
  "!TARGET_MIPS16"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  return (operands[3] != pc_rtx)
        ? \"%*b%C0%?\\t%z1,%z2,%3\"
        : \"%*b%N0%?\\t%z1,%z2,%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])


(define_insn "branch_equality_di"
  [(set (pc)
        (if_then_else (match_operator:DI 0 "equality_op"
                                         [(match_operand:DI 1 "se_register_operand" "d")
                                          (match_operand:DI 2 "se_register_operand" "d")])
        (match_operand 3 "pc_or_label_operand" "")
        (match_operand 4 "pc_or_label_operand" "")))]
  "!TARGET_MIPS16"
  "*
{
  mips_branch_likely = (final_sequence && INSN_ANNULLED_BRANCH_P (insn));
  return (operands[3] != pc_rtx)
        ? \"%*b%C0%?\\t%z1,%z2,%3\"
        : \"%*b%N0%?\\t%z1,%z2,%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])


(define_expand "beq"
  [(set (pc)
        (if_then_else (eq:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, EQ);
      DONE;
    }
}")

(define_expand "bne"
  [(set (pc)
        (if_then_else (ne:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, NE);
      DONE;
    }
}")

(define_expand "bgt"
  [(set (pc)
        (if_then_else (gt:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, GT);
      DONE;
    }
}")

(define_expand "bge"
  [(set (pc)
        (if_then_else (ge:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, GE);
      DONE;
    }
}")

(define_expand "blt"
  [(set (pc)
        (if_then_else (lt:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, LT);
      DONE;
    }
}")

(define_expand "ble"
  [(set (pc)
        (if_then_else (le:CC (cc0)
                             (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, LE);
      DONE;
    }
}")

(define_expand "bgtu"
  [(set (pc)
        (if_then_else (gtu:CC (cc0)
                              (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, GTU);
      DONE;
    }
}")

(define_expand "bgeu"
  [(set (pc)
        (if_then_else (geu:CC (cc0)
                              (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, GEU);
      DONE;
    }
}")


(define_expand "bltu"
  [(set (pc)
        (if_then_else (ltu:CC (cc0)
                              (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, LTU);
      DONE;
    }
}")

(define_expand "bleu"
  [(set (pc)
        (if_then_else (leu:CC (cc0)
                              (const_int 0))
                      (label_ref (match_operand 0 "" ""))
                      (pc)))]
  ""
  "
{
  if (operands[0])              /* avoid unused code warning */
    {
      gen_conditional_branch (operands, LEU);
      DONE;
    }
}")

\f
;;
;;  ....................
;;
;;      SETTING A REGISTER FROM A COMPARISON
;;
;;  ....................

(define_expand "seq"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (eq:SI (match_dup 1)
               (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (EQ, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")


(define_insn "seq_si_zero"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (eq:SI (match_operand:SI 1 "register_operand" "d")
               (const_int 0)))]
  "!TARGET_MIPS16"
  "sltu\\t%0,%1,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t")
        (eq:SI (match_operand:SI 1 "register_operand" "d")
               (const_int 0)))]
  "TARGET_MIPS16"
  "sltu\\t%1,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "seq_di_zero"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (eq:DI (match_operand:DI 1 "se_register_operand" "d")
               (const_int 0)))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "sltu\\t%0,%1,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t")
        (eq:DI (match_operand:DI 1 "se_register_operand" "d")
               (const_int 0)))]
  "TARGET_64BIT && TARGET_MIPS16"
  "sltu\\t%1,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "seq_si"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (eq:SI (match_operand:SI 1 "register_operand" "%d,d")
               (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "@
   xor\\t%0,%1,%2\;sltu\\t%0,%0,1
   xori\\t%0,%1,%2\;sltu\\t%0,%0,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (eq:SI (match_operand:SI 1 "register_operand" "")
               (match_operand:SI 2 "uns_arith_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16
    && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 0)"
  [(set (match_dup 0)
        (xor:SI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (ltu:SI (match_dup 0)
                (const_int 1)))]
  "")

(define_insn "seq_di"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (eq:DI (match_operand:DI 1 "se_register_operand" "%d,d")
               (match_operand:DI 2 "se_uns_arith_operand" "d,K")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "@
   xor\\t%0,%1,%2\;sltu\\t%0,%0,1
   xori\\t%0,%1,%2\;sltu\\t%0,%0,1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (eq:DI (match_operand:DI 1 "se_register_operand" "")
               (match_operand:DI 2 "se_uns_arith_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
    && !TARGET_MIPS16
    && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 0)"
  [(set (match_dup 0)
        (xor:DI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (ltu:DI (match_dup 0)
                (const_int 1)))]
  "")

;; On the mips16 the default code is better than using sltu.

(define_expand "sne"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ne:SI (match_dup 1)
               (match_dup 2)))]
  "!TARGET_MIPS16"
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE)
    {
      gen_int_relational (NE, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) < 0)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")

(define_insn "sne_si_zero"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ne:SI (match_operand:SI 1 "register_operand" "d")
               (const_int 0)))]
  "!TARGET_MIPS16"
  "sltu\\t%0,%.,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "sne_di_zero"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ne:DI (match_operand:DI 1 "se_register_operand" "d")
               (const_int 0)))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "sltu\\t%0,%.,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn "sne_si"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (ne:SI (match_operand:SI 1 "register_operand" "%d,d")
               (match_operand:SI 2 "uns_arith_operand" "d,K")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "@
    xor\\t%0,%1,%2\;sltu\\t%0,%.,%0
    xori\\t%0,%1,%x2\;sltu\\t%0,%.,%0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (ne:SI (match_operand:SI 1 "register_operand" "")
               (match_operand:SI 2 "uns_arith_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16
    && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 0)"
  [(set (match_dup 0)
        (xor:SI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (gtu:SI (match_dup 0)
                (const_int 0)))]
  "")

(define_insn "sne_di"
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (ne:DI (match_operand:DI 1 "se_register_operand" "%d,d")
               (match_operand:DI 2 "se_uns_arith_operand" "d,K")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "@
    xor\\t%0,%1,%2\;sltu\\t%0,%.,%0
    xori\\t%0,%1,%x2\;sltu\\t%0,%.,%0"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ne:DI (match_operand:DI 1 "se_register_operand" "")
               (match_operand:DI 2 "se_uns_arith_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
    && !TARGET_MIPS16
    && (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 0)"
  [(set (match_dup 0)
        (xor:DI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (gtu:DI (match_dup 0)
                (const_int 0)))]
  "")

(define_expand "sgt"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (gt:SI (match_dup 1)
               (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (GT, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")

(define_insn "sgt_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (gt:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "reg_or_0_operand" "dJ")))]
  "!TARGET_MIPS16"
  "slt\\t%0,%z2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t")
        (gt:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "register_operand" "d")))]
  "TARGET_MIPS16"
  "slt\\t%2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "sgt_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (gt:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "se_reg_or_0_operand" "dJ")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "slt\\t%0,%z2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d")
        (gt:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "slt\\t%2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_expand "sge"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ge:SI (match_dup 1)
               (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (GE, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  /* fall through and generate default code */
}")

(define_insn "sge_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ge:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "arith_operand" "dI")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "slt\\t%0,%1,%2\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (ge:SI (match_operand:SI 1 "register_operand" "")
               (match_operand:SI 2 "arith_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16"
  [(set (match_dup 0)
        (lt:SI (match_dup 1)
               (match_dup 2)))
   (set (match_dup 0)
        (xor:SI (match_dup 0)
                (const_int 1)))]
  "")

(define_insn "sge_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ge:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "slt\\t%0,%1,%2\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (ge:DI (match_operand:DI 1 "se_register_operand" "")
               (match_operand:DI 2 "se_arith_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
   && !TARGET_MIPS16"
  [(set (match_dup 0)
        (lt:DI (match_dup 1)
               (match_dup 2)))
   (set (match_dup 0)
        (xor:DI (match_dup 0)
                (const_int 1)))]
  "")

(define_expand "slt"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (lt:SI (match_dup 1)
               (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (LT, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  /* fall through and generate default code */
}")

(define_insn "slt_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (lt:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16"
  "slt\\t%0,%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t,t")
        (lt:SI (match_operand:SI 1 "register_operand" "d,d")
               (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_MIPS16"
  "slt\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))])])

(define_insn "slt_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (lt:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "slt\\t%0,%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t,t")
        (lt:DI (match_operand:DI 1 "se_register_operand" "d,d")
               (match_operand:DI 2 "se_arith_operand" "d,I")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "slt\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))])])

(define_expand "sle"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (le:SI (match_dup 1)
               (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (LE, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) >= 32767)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")

(define_insn "sle_si_const"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (le:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "small_int" "I")))]
  "!TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"slt\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t")
        (le:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "small_int" "I")))]
  "TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"slt\\t%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 2 "m16_uimm8_m1_1" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn "sle_di_const"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (le:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "small_int" "I")))]
  "TARGET_64BIT && !TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"slt\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t")
        (le:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "small_int" "I")))]
  "TARGET_64BIT && TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"slt\\t%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 2 "m16_uimm8_m1_1" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn "sle_si_reg"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (le:SI (match_operand:SI 1 "register_operand" "d")
               (match_operand:SI 2 "register_operand" "d")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "slt\\t%0,%z2,%1\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (le:SI (match_operand:SI 1 "register_operand" "")
               (match_operand:SI 2 "register_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16"
  [(set (match_dup 0)
        (lt:SI (match_dup 2)
               (match_dup 1)))
   (set (match_dup 0)
        (xor:SI (match_dup 0)
                (const_int 1)))]
  "")

(define_insn "sle_di_reg"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (le:DI (match_operand:DI 1 "se_register_operand" "d")
               (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "slt\\t%0,%z2,%1\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (le:DI (match_operand:DI 1 "se_register_operand" "")
               (match_operand:DI 2 "se_register_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
   && !TARGET_MIPS16"
  [(set (match_dup 0)
        (lt:DI (match_dup 2)
               (match_dup 1)))
   (set (match_dup 0)
        (xor:DI (match_dup 0)
                (const_int 1)))]
  "")

(define_expand "sgtu"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (gtu:SI (match_dup 1)
                (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (GTU, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")

(define_insn "sgtu_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (gtu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "reg_or_0_operand" "dJ")))]
  ""
  "sltu\\t%0,%z2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t")
        (gtu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "register_operand" "d")))]
  ""
  "sltu\\t%2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn "sgtu_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (gtu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_reg_or_0_operand" "dJ")))]
  "TARGET_64BIT"
  "sltu\\t%0,%z2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t")
        (gtu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT"
  "sltu\\t%2,%1"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_expand "sgeu"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (geu:SI (match_dup 1)
                (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (GEU, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  /* fall through and generate default code */
}")

(define_insn "sgeu_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (geu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "arith_operand" "dI")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "sltu\\t%0,%1,%2\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (geu:SI (match_operand:SI 1 "register_operand" "")
                (match_operand:SI 2 "arith_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16"
  [(set (match_dup 0)
        (ltu:SI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (xor:SI (match_dup 0)
                (const_int 1)))]
  "")

(define_insn "sgeu_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (geu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "sltu\\t%0,%1,%2\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (geu:DI (match_operand:DI 1 "se_register_operand" "")
                (match_operand:DI 2 "se_arith_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
   && !TARGET_MIPS16"
  [(set (match_dup 0)
        (ltu:DI (match_dup 1)
                (match_dup 2)))
   (set (match_dup 0)
        (xor:DI (match_dup 0)
                (const_int 1)))]
  "")

(define_expand "sltu"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ltu:SI (match_dup 1)
                (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (LTU, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  /* fall through and generate default code */
}")

(define_insn "sltu_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ltu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "arith_operand" "dI")))]
  "!TARGET_MIPS16"
  "sltu\\t%0,%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t,t")
        (ltu:SI (match_operand:SI 1 "register_operand" "d,d")
                (match_operand:SI 2 "arith_operand" "d,I")))]
  "TARGET_MIPS16"
  "sltu\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))])])

(define_insn "sltu_di"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (ltu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_arith_operand" "dI")))]
  "TARGET_64BIT && !TARGET_MIPS16"
  "sltu\\t%0,%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t,t")
        (ltu:DI (match_operand:DI 1 "se_register_operand" "d,d")
                (match_operand:DI 2 "se_arith_operand" "d,I")))]
  "TARGET_64BIT && TARGET_MIPS16"
  "sltu\\t%1,%2"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr_alternative "length"
                [(const_int 1)
                 (if_then_else (match_operand:VOID 2 "m16_uimm8_1" "")
                               (const_int 1)
                               (const_int 2))])])

(define_expand "sleu"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (leu:SI (match_dup 1)
                (match_dup 2)))]
  ""
  "
{
  if (branch_type != CMP_SI && (!TARGET_64BIT || branch_type != CMP_DI))
    FAIL;

  /* set up operands from compare.  */
  operands[1] = branch_cmp[0];
  operands[2] = branch_cmp[1];

  if (TARGET_64BIT || !TARGET_DEBUG_C_MODE || TARGET_MIPS16)
    {
      gen_int_relational (LEU, operands[0], operands[1], operands[2], (int *)0);
      DONE;
    }

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) >= 32767)
    operands[2] = force_reg (SImode, operands[2]);

  /* fall through and generate default code */
}")

(define_insn "sleu_si_const"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (leu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "small_int" "I")))]
  "!TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"sltu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=t")
        (leu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "small_int" "I")))]
  "TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"sltu\\t%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set (attr "length") (if_then_else (match_operand:VOID 2 "m16_uimm8_m1_1" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn "sleu_di_const"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (leu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "small_int" "I")))]
  "TARGET_64BIT && !TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"sltu\\t%0,%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "1")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=t")
        (leu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "small_int" "I")))]
  "TARGET_64BIT && TARGET_MIPS16 && INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2])+1);
  return \"sltu\\t%1,%2\";
}"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set (attr "length") (if_then_else (match_operand:VOID 2 "m16_uimm8_m1_1" "")
                                      (const_int 1)
                                      (const_int 2)))])

(define_insn "sleu_si_reg"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (leu:SI (match_operand:SI 1 "register_operand" "d")
                (match_operand:SI 2 "register_operand" "d")))]
  "TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "sltu\\t%0,%z2,%1\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (leu:SI (match_operand:SI 1 "register_operand" "")
                (match_operand:SI 2 "register_operand" "")))]
  "TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE && !TARGET_MIPS16"
  [(set (match_dup 0)
        (ltu:SI (match_dup 2)
                (match_dup 1)))
   (set (match_dup 0)
        (xor:SI (match_dup 0)
                (const_int 1)))]
  "")

(define_insn "sleu_di_reg"
  [(set (match_operand:DI 0 "register_operand" "=d")
        (leu:DI (match_operand:DI 1 "se_register_operand" "d")
                (match_operand:DI 2 "se_register_operand" "d")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_MIPS16"
  "sltu\\t%0,%z2,%1\;xori\\t%0,%0,0x0001"
  [(set_attr "type"     "arith")
   (set_attr "mode"     "DI")
   (set_attr "length"   "2")])

(define_split
  [(set (match_operand:DI 0 "register_operand" "")
        (leu:DI (match_operand:DI 1 "se_register_operand" "")
                (match_operand:DI 2 "se_register_operand" "")))]
  "TARGET_64BIT && TARGET_DEBUG_C_MODE && !TARGET_DEBUG_D_MODE
   && !TARGET_MIPS16"
  [(set (match_dup 0)
        (ltu:DI (match_dup 2)
                (match_dup 1)))
   (set (match_dup 0)
        (xor:DI (match_dup 0)
                (const_int 1)))]
  "")

\f
;;
;;  ....................
;;
;;      FLOATING POINT COMPARISONS
;;
;;  ....................

(define_insn "seq_df"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (eq:CC (match_operand:DF 1 "register_operand" "f")
               (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.eq.d\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "slt_df"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (lt:CC (match_operand:DF 1 "register_operand" "f")
               (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.lt.d\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sle_df"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (le:CC (match_operand:DF 1 "register_operand" "f")
               (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.le.d\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sgt_df"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (gt:CC (match_operand:DF 1 "register_operand" "f")
               (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.lt.d\\t%Z0%2,%1\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sge_df"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (ge:CC (match_operand:DF 1 "register_operand" "f")
               (match_operand:DF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.le.d\\t%Z0%2,%1\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "seq_sf"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (eq:CC (match_operand:SF 1 "register_operand" "f")
               (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.eq.s\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "slt_sf"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (lt:CC (match_operand:SF 1 "register_operand" "f")
               (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.lt.s\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sle_sf"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (le:CC (match_operand:SF 1 "register_operand" "f")
               (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.le.s\\t%Z0%1,%2\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sgt_sf"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (gt:CC (match_operand:SF 1 "register_operand" "f")
               (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.lt.s\\t%Z0%2,%1\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

(define_insn "sge_sf"
  [(set (match_operand:CC 0 "register_operand" "=z")
        (ge:CC (match_operand:SF 1 "register_operand" "f")
               (match_operand:SF 2 "register_operand" "f")))]
  "TARGET_HARD_FLOAT"
  "*
{
  return mips_fill_delay_slot (\"c.le.s\\t%Z0%2,%1\", DELAY_FCMP, operands, insn);
}"
 [(set_attr "type"      "fcmp")
  (set_attr "mode"      "FPSW")
  (set_attr "length"    "1")])

\f
;;
;;  ....................
;;
;;      UNCONDITIONAL BRANCHES
;;
;;  ....................

;; Unconditional branches.

(define_insn "jump"
  [(set (pc)
        (label_ref (match_operand 0 "" "")))]
  "!TARGET_MIPS16"
  "*
{
  if (GET_CODE (operands[0]) == REG)
    return \"%*j\\t%0\";
  /* ??? I don't know why this is necessary.  This works around an
     assembler problem that appears when a label is defined, then referenced
     in a switch table, then used in a `j' instruction.  */
  else if (mips_abi != ABI_32)
    return \"%*b\\t%l0\";
  else  
    return \"%*j\\t%l0\";
}"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

;; We need a different insn for the mips16, because a mips16 branch
;; does not have a delay slot.

(define_insn ""
  [(set (pc)
        (label_ref (match_operand 0 "" "")))]
  "TARGET_MIPS16 && GET_CODE (operands[0]) != REG"
  "b\\t%l0"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_expand "indirect_jump"
  [(set (pc) (match_operand 0 "register_operand" "d"))]
  ""
  "
{
  rtx dest;

  if (operands[0])              /* eliminate unused code warnings */
    {
      dest = operands[0];
      if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)
        operands[0] = copy_to_mode_reg (Pmode, dest);

      if (!TARGET_LONG64)
        emit_jump_insn (gen_indirect_jump_internal1 (operands[0]));
      else
        emit_jump_insn (gen_indirect_jump_internal2 (operands[0]));

      DONE;
    }
}")

(define_insn "indirect_jump_internal1"
  [(set (pc) (match_operand:SI 0 "register_operand" "d"))]
  "!TARGET_LONG64"
  "%*j\\t%0"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "indirect_jump_internal2"
  [(set (pc) (match_operand:DI 0 "se_register_operand" "d"))]
  "TARGET_LONG64"
  "%*j\\t%0"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_expand "tablejump"
  [(set (pc)
        (match_operand 0 "register_operand" "d"))
   (use (label_ref (match_operand 1 "" "")))]
  ""
  "
{
  rtx dest;

  if (operands[0])              /* eliminate unused code warnings */
    {
      if (TARGET_MIPS16)
        {
          if (GET_MODE (operands[0]) != HImode)
            abort ();
          if (!TARGET_LONG64)
            emit_jump_insn (gen_tablejump_mips161 (operands[0], operands[1]));
          else
            emit_jump_insn (gen_tablejump_mips162 (operands[0], operands[1]));
          DONE;
        }

      if (GET_MODE (operands[0]) != Pmode)
        abort ();

      if (! flag_pic)
        {
          if (!TARGET_LONG64)
            emit_jump_insn (gen_tablejump_internal1 (operands[0], operands[1]));
          else
            emit_jump_insn (gen_tablejump_internal2 (operands[0], operands[1]));
        }
      else
        {
          if (!TARGET_LONG64)
            emit_jump_insn (gen_tablejump_internal3 (operands[0], operands[1]));
          else
            emit_jump_insn (gen_tablejump_internal4 (operands[0], operands[1]));
        }

      DONE;
    }
}")

(define_insn "tablejump_internal1"
  [(set (pc)
        (match_operand:SI 0 "register_operand" "d"))
   (use (label_ref (match_operand 1 "" "")))]
  "!TARGET_LONG64"
  "%*j\\t%0"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "tablejump_internal2"
  [(set (pc)
        (match_operand:DI 0 "se_register_operand" "d"))
   (use (label_ref (match_operand 1 "" "")))]
  "TARGET_LONG64"
  "%*j\\t%0"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_expand "tablejump_internal3"
  [(set (pc)
        (plus:SI (match_operand:SI 0 "register_operand" "d")
                 (label_ref:SI (match_operand:SI 1 "" ""))))]
  ""
  "")

(define_expand "tablejump_mips161"
  [(set (pc) (plus:SI (sign_extend:SI
                       (match_operand:HI 0 "register_operand" "d"))
                      (label_ref:SI (match_operand:SI 1 "" ""))))]
  "TARGET_MIPS16 && !TARGET_LONG64"
  "
{
  if (operands[0])      /* eliminate unused code warnings.  */
    {
      rtx t1, t2, t3;

      t1 = gen_reg_rtx (SImode);
      t2 = gen_reg_rtx (SImode);
      t3 = gen_reg_rtx (SImode);
      emit_insn (gen_extendhisi2 (t1, operands[0]));
      emit_move_insn (t2, gen_rtx (LABEL_REF, SImode, operands[1]));
      emit_insn (gen_addsi3 (t3, t1, t2));
      emit_insn (gen_tablejump_internal1 (t3, operands[1]));
      DONE;
    }
}")

(define_expand "tablejump_mips162"
  [(set (pc) (plus:DI (sign_extend:DI
                       (match_operand:HI 0 "register_operand" "d"))
                      (label_ref:DI (match_operand:SI 1 "" ""))))]
  "TARGET_MIPS16 && TARGET_LONG64"
  "
{
  if (operands[0])      /* eliminate unused code warnings.  */
    {
      rtx t1, t2, t3;

      t1 = gen_reg_rtx (DImode);
      t2 = gen_reg_rtx (DImode);
      t3 = gen_reg_rtx (DImode);
      emit_insn (gen_extendhidi2 (t1, operands[0]));
      emit_move_insn (t2, gen_rtx (LABEL_REF, DImode, operands[1]));
      emit_insn (gen_adddi3 (t3, t1, t2));
      emit_insn (gen_tablejump_internal2 (t3, operands[1]));
      DONE;
    }
}")

;;; Make sure that this only matches the insn before ADDR_DIFF_VEC.  Otherwise
;;; it is not valid.

;;; ??? The length depends on the ABI.  It is two for o32, and one for n32.
;;; We just use the conservative number here.

(define_insn ""
  [(set (pc)
        (plus:SI (match_operand:SI 0 "register_operand" "d")
                 (label_ref:SI (match_operand:SI 1 "" ""))))]
  "!TARGET_LONG64 && next_active_insn (insn) != 0
   && GET_CODE (PATTERN (next_active_insn (insn))) == ADDR_DIFF_VEC
   && PREV_INSN (next_active_insn (insn)) == operands[1]"
  "*
{
  /* .cpadd expands to add REG,REG,$gp when pic, and nothing when not pic.  */
  if (mips_abi == ABI_32)
    output_asm_insn (\".cpadd\\t%0\", operands);
  return \"%*j\\t%0\";
}"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_expand "tablejump_internal4"
  [(set (pc)
        (plus:DI (match_operand:DI 0 "se_register_operand" "d")
                 (label_ref:DI (match_operand:SI 1 "" ""))))]
  ""
  "")

;;; Make sure that this only matches the insn before ADDR_DIFF_VEC.  Otherwise
;;; it is not valid.

(define_insn ""
  [(set (pc)
        (plus:DI (match_operand:DI 0 "se_register_operand" "d")
                 (label_ref:DI (match_operand:SI 1 "" ""))))]
  "TARGET_LONG64 && next_active_insn (insn) != 0
   && GET_CODE (PATTERN (next_active_insn (insn))) == ADDR_DIFF_VEC
   && PREV_INSN (next_active_insn (insn)) == operands[1]"
  "%*j\\t%0"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

;; Implement a switch statement when generating embedded PIC code.
;; Switches are implemented by `tablejump' when not using -membedded-pic.

(define_expand "casesi"
  [(set (match_dup 5)
        (minus:SI (match_operand:SI 0 "register_operand" "d")
                  (match_operand:SI 1 "arith_operand" "dI")))
   (set (cc0)
        (compare:CC (match_dup 5)
                    (match_operand:SI 2 "arith_operand" "")))
   (set (pc)
        (if_then_else (gtu (cc0)
                           (const_int 0))
                      (label_ref (match_operand 4 "" ""))
                      (pc)))
   (parallel
    [(set (pc)
          (mem:SI (plus:SI (mult:SI (match_dup 5)
                                    (const_int 4))
                           (label_ref (match_operand 3 "" "")))))
     (clobber (match_scratch:SI 6 ""))
     (clobber (reg:SI 31))])]
  "TARGET_EMBEDDED_PIC"
  "
{
  /* We need slightly different code for eight byte table entries.  */
  if (TARGET_LONG64)
    abort ();

  if (operands[0])
    {
      rtx reg = gen_reg_rtx (SImode);

      /* If the index is too large, go to the default label.  */
      emit_insn (gen_subsi3 (reg, operands[0], operands[1]));
      emit_insn (gen_cmpsi (reg, operands[2]));
      emit_insn (gen_bgtu (operands[4]));

      /* Do the PIC jump.  */
      emit_insn (gen_casesi_internal (reg, operands[3], gen_reg_rtx (SImode)));

      DONE;
    }
}")

;; An embedded PIC switch statement looks like this:
;;      bal     $LS1
;;      sll     $reg,$index,2
;; $LS1:
;;      addu    $reg,$reg,$31
;;      lw      $reg,$L1-$LS1($reg)
;;      addu    $reg,$reg,$31
;;      j       $reg
;; $L1:
;;      .word   case1-$LS1
;;      .word   case2-$LS1
;;      ...

(define_insn "casesi_internal"
  [(set (pc)
        (mem:SI (plus:SI (mult:SI (match_operand:SI 0 "register_operand" "d")
                                  (const_int 4))
                         (label_ref (match_operand 1 "" "")))))
   (clobber (match_operand:SI 2 "register_operand" "d"))
   (clobber (reg:SI 31))]
  "TARGET_EMBEDDED_PIC"
  "*
{
  output_asm_insn (\"%(bal\\t%S1\;sll\\t%0,2\\n%S1:\", operands);
  output_asm_insn (\"addu\\t%0,%0,$31%)\", operands);
  output_asm_insn (\"lw\\t%0,%1-%S1(%0)\;addu\\t%0,%0,$31\", operands);
  return \"j\\t%0\";
}"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "6")])

;; ??? This is a hack to work around a problem with expand_builtin_setjmp.
;; It restores the frame pointer, and then does a call to restore the global
;; pointer (gp) register.  The call insn implicitly (via the assembler) reloads
;; gp from the stack.  However, call insns do not depend on $fp, so it is
;; possible for the instruction scheduler to move the fp restore after the
;; call, which then causes gp to be corrupted.  We fix this by emitting a
;; scheduler barrier.  A better fix is to put code here that restores the
;; $gp, and then the call is unnecessary.  This is only a problem when PIC
;; (TARGET_ABICALLS), and only when the gp register is caller-saved
;; (irix5/o32, but not irix6/n32/n64).

(define_expand "nonlocal_goto_receiver"
  [(const_int 0)]
  ""
  "
{
  emit_insn (gen_blockage ());
}")

;; For n32/n64, we need to restore gp after a builtin setjmp.   We do this
;; by making use of the fact that we've just called __dummy.

(define_expand "builtin_setjmp_receiver"
  [(const_int 0)]
  "TARGET_ABICALLS && mips_abi != ABI_32"
  "
{
  emit_insn (gen_loadgp (gen_rtx (SYMBOL_REF, Pmode, \"__dummy\")));
  emit_insn (gen_blockage ());
}")
\f
;;
;;  ....................
;;
;;      Function prologue/epilogue
;;
;;  ....................
;;

(define_expand "prologue"
  [(const_int 1)]
  ""
  "
{
  if (mips_isa >= 0)            /* avoid unused code warnings */
    {
      mips_expand_prologue ();
      DONE;
    }
}")

;; Block any insns from being moved before this point, since the
;; profiling call to mcount can use various registers that aren't
;; saved or used to pass arguments.

(define_insn "blockage"
  [(unspec_volatile [(const_int 0)] 0)]
  ""
  ""
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "none")
   (set_attr "length"   "0")])

(define_expand "epilogue"
  [(const_int 2)]
  ""
  "
{
  if (mips_isa >= 0)            /* avoid unused code warnings */
    {
      mips_expand_epilogue ();
      DONE;
    }
}")

;; Trivial return.  Make it look like a normal return insn as that
;; allows jump optimizations to work better .
(define_insn "return"
  [(return)]
  "mips_can_use_return_insn ()"
  "%*j\\t$31"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

;; Normal return.
;; We match any mode for the return address, so that this will work with
;; both 32 bit and 64 bit targets.
(define_insn "return_internal"
  [(use (match_operand 0 "register_operand" ""))
   (return)]
  ""
  "*
{
  return \"%*j\\t%0\";
}"
  [(set_attr "type"     "jump")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])
  
;; When generating embedded PIC code we need to get the address of the
;; current function.  This specialized instruction does just that.

(define_insn "get_fnaddr"
  [(set (match_operand 0 "register_operand" "=d")
        (unspec [(match_operand 1 "" "")] 1))
   (clobber (reg:SI 31))]
  "TARGET_EMBEDDED_PIC
   && GET_CODE (operands[1]) == SYMBOL_REF"
  "%($LF%= = . + 8\;bal\\t$LF%=\;la\\t%0,%1-$LF%=%)\;addu\\t%0,%0,$31"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "4")])

\f
;;
;;  ....................
;;
;;      FUNCTION CALLS
;;
;;  ....................

;; calls.c now passes a third argument, make saber happy

(define_expand "call"
  [(parallel [(call (match_operand 0 "memory_operand" "m")
                    (match_operand 1 "" "i"))
              (clobber (reg:SI 31))
              (use (match_operand 2 "" ""))             ;; next_arg_reg
              (use (match_operand 3 "" ""))])]          ;; struct_value_size_rtx
  ""
  "
{
  rtx addr;

  if (operands[0])              /* eliminate unused code warnings */
    {
      addr = XEXP (operands[0], 0);
      if ((GET_CODE (addr) != REG && (!CONSTANT_ADDRESS_P (addr) || TARGET_LONG_CALLS))
          || ! call_insn_operand (addr, VOIDmode))
        XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);

      /* In order to pass small structures by value in registers
         compatibly with the MIPS compiler, we need to shift the value
         into the high part of the register.  Function_arg has encoded
         a PARALLEL rtx, holding a vector of adjustments to be made
         as the next_arg_reg variable, so we split up the insns,
         and emit them separately.  */

      if (operands[2] != (rtx)0 && GET_CODE (operands[2]) == PARALLEL)
        {
          rtvec adjust = XVEC (operands[2], 0);
          int num = GET_NUM_ELEM (adjust);
          int i;

          for (i = 0; i < num; i++)
            emit_insn (RTVEC_ELT (adjust, i));
        }

      if (TARGET_MIPS16
          && mips16_hard_float
          && operands[2] != 0
          && (int) GET_MODE (operands[2]) != 0)
        {
          if (build_mips16_call_stub (NULL_RTX, operands[0], operands[1],
                                      (int) GET_MODE (operands[2])))
            DONE;
        }

      emit_call_insn (gen_call_internal0 (operands[0], operands[1],
                                          gen_rtx (REG, SImode, GP_REG_FIRST + 31)));

      DONE;
    }
}")

(define_expand "call_internal0"
  [(parallel [(call (match_operand 0 "" "")
                    (match_operand 1 "" ""))
              (clobber (match_operand:SI 2 "" ""))])]
  ""
  "")

;; We need to recognize reg:SI 31 specially for the mips16, because we
;; don't have a constraint letter for it.

(define_insn ""
  [(call (mem (match_operand 0 "call_insn_operand" "ei"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=y"))]
  "TARGET_MIPS16 && !TARGET_ABICALLS && !TARGET_LONG_CALLS
   && GET_CODE (operands[2]) == REG && REGNO (operands[2]) == 31"
  "%*jal\\t%0"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_internal1"
  [(call (mem (match_operand 0 "call_insn_operand" "ri"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "!TARGET_ABICALLS && !TARGET_LONG_CALLS"
  "*
{
  register rtx target = operands[0];

  if (GET_CODE (target) == SYMBOL_REF)
    return \"%*jal\\t%0\";
  else if (GET_CODE (target) == CONST_INT)
    return \"%[li\\t%@,%0\\n\\t%*jal\\t%2,%@%]\";
  else
    return \"%*jal\\t%2,%0\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_internal2"
  [(call (mem (match_operand 0 "call_insn_operand" "ri"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "TARGET_ABICALLS && !TARGET_LONG_CALLS"
  "*
{
  register rtx target = operands[0];

  if (GET_CODE (target) == SYMBOL_REF)
    {
      if (GET_MODE (target) == SImode)
        return \"la\\t%^,%0\\n\\tjal\\t%2,%^\";
      else
        return \"dla\\t%^,%0\\n\\tjal\\t%2,%^\";
    }
  else if (GET_CODE (target) == CONST_INT)
    return \"li\\t%^,%0\\n\\tjal\\t%2,%^\";
  else if (REGNO (target) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%0\\n\\tjal\\t%2,%^\";
  else
    return \"jal\\t%2,%0\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_internal3a"
  [(call (mem:SI (match_operand:SI 0 "register_operand" "r"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "!TARGET_LONG64 && !TARGET_ABICALLS && TARGET_LONG_CALLS"
  "%*jal\\t%2,%0"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_internal3b"
  [(call (mem:DI (match_operand:DI 0 "se_register_operand" "r"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "TARGET_LONG64 && !TARGET_ABICALLS && TARGET_LONG_CALLS"
  "%*jal\\t%2,%0"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_internal4a"
  [(call (mem:SI (match_operand:SI 0 "register_operand" "r"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "!TARGET_LONG64 && TARGET_ABICALLS && TARGET_LONG_CALLS"
  "*
{
  if (REGNO (operands[0]) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%0\\n\\tjal\\t%2,%^\";
  else
    return \"jal\\t%2,%0\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_internal4b"
  [(call (mem:DI (match_operand:DI 0 "se_register_operand" "r"))
         (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  "TARGET_LONG64 && TARGET_ABICALLS && TARGET_LONG_CALLS"
  "*
{
  if (REGNO (operands[0]) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%0\\n\\tjal\\t%2,%^\";
  else
    return \"jal\\t%2,%0\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

;; calls.c now passes a fourth argument, make saber happy

(define_expand "call_value"
  [(parallel [(set (match_operand 0 "register_operand" "=df")
                   (call (match_operand 1 "memory_operand" "m")
                         (match_operand 2 "" "i")))
              (clobber (reg:SI 31))
              (use (match_operand 3 "" ""))])]          ;; next_arg_reg
  ""
  "
{
  rtx addr;

  if (operands[0])              /* eliminate unused code warning */
    {
      addr = XEXP (operands[1], 0);
      if ((GET_CODE (addr) != REG && (!CONSTANT_ADDRESS_P (addr) || TARGET_LONG_CALLS))
          || ! call_insn_operand (addr, VOIDmode))
        XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);

      /* In order to pass small structures by value in registers
         compatibly with the MIPS compiler, we need to shift the value
         into the high part of the register.  Function_arg has encoded
         a PARALLEL rtx, holding a vector of adjustments to be made
         as the next_arg_reg variable, so we split up the insns,
         and emit them separately.  */

      if (operands[3] != (rtx)0 && GET_CODE (operands[3]) == PARALLEL)
        {
          rtvec adjust = XVEC (operands[3], 0);
          int num = GET_NUM_ELEM (adjust);
          int i;

          for (i = 0; i < num; i++)
            emit_insn (RTVEC_ELT (adjust, i));
        }

      if (TARGET_MIPS16
          && mips16_hard_float
          && ((operands[3] != 0
               && (int) GET_MODE (operands[3]) != 0)
              || GET_MODE_CLASS (GET_MODE (operands[0])) == MODE_FLOAT))
        {
          if (build_mips16_call_stub (operands[0], operands[1], operands[2],
                                      (operands[3] == 0 ? 0
                                       : (int) GET_MODE (operands[3]))))
            DONE;
        }

      /* Handle Irix6 function calls that have multiple non-contiguous
         results.  */
      if (GET_CODE (operands[0]) == PARALLEL && XVECLEN (operands[0], 0) > 1)
        {
          emit_call_insn (gen_call_value_multiple_internal0
                          (XEXP (XVECEXP (operands[0], 0, 0), 0),
                           operands[1], operands[2],
                           XEXP (XVECEXP (operands[0], 0, 1), 0),
                           gen_rtx (REG, SImode, GP_REG_FIRST + 31)));
          DONE;
        }

      /* We have a call returning a DImode structure in an FP reg.
         Strip off the now unnecessary PARALLEL.  */
      if (GET_CODE (operands[0]) == PARALLEL)
        operands[0] = XEXP (XVECEXP (operands[0], 0, 0), 0);

      emit_call_insn (gen_call_value_internal0 (operands[0], operands[1], operands[2],
                                                gen_rtx (REG, SImode, GP_REG_FIRST + 31)));

      DONE;
    }
}")

(define_expand "call_value_internal0"
  [(parallel [(set (match_operand 0 "" "")
                   (call (match_operand 1 "" "")
                         (match_operand 2 "" "")))
              (clobber (match_operand:SI 3 "" ""))])]
  ""
  "")

;; Recognize $31 specially on the mips16, because we don't have a
;; constraint letter for it.

(define_insn ""
  [(set (match_operand 0 "register_operand" "=d")
        (call (mem (match_operand 1 "call_insn_operand" "ei"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=y"))]
  "TARGET_MIPS16 && !TARGET_ABICALLS && !TARGET_LONG_CALLS
   && GET_CODE (operands[3]) == REG && REGNO (operands[3]) == 31"
  "%*jal\\t%1"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_value_internal1"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem (match_operand 1 "call_insn_operand" "ri"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_ABICALLS && !TARGET_LONG_CALLS"
  "*
{
  register rtx target = operands[1];

  if (GET_CODE (target) == SYMBOL_REF)
    return \"%*jal\\t%1\";
  else if (GET_CODE (target) == CONST_INT)
    return \"%[li\\t%@,%1\\n\\t%*jal\\t%3,%@%]\";
  else
    return \"%*jal\\t%3,%1\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_value_internal2"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem (match_operand 1 "call_insn_operand" "ri"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "TARGET_ABICALLS && !TARGET_LONG_CALLS"
  "*
{
  register rtx target = operands[1];

  if (GET_CODE (target) == SYMBOL_REF)
    {
      if (GET_MODE (target) == SImode)
        return \"la\\t%^,%1\\n\\tjal\\t%3,%^\";
      else
        return \"dla\\t%^,%1\\n\\tjal\\t%3,%^\";
    }
  else if (GET_CODE (target) == CONST_INT)
    return \"li\\t%^,%1\\n\\tjal\\t%3,%^\";
  else if (REGNO (target) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%1\\n\\tjal\\t%3,%^\";
  else
    return \"jal\\t%3,%1\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_value_internal3a"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem:SI (match_operand:SI 1 "register_operand" "r"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_LONG64 && !TARGET_ABICALLS && TARGET_LONG_CALLS"
  "%*jal\\t%3,%1"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_value_internal3b"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem:DI (match_operand:DI 1 "se_register_operand" "r"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "TARGET_LONG64 && !TARGET_ABICALLS && TARGET_LONG_CALLS"
  "%*jal\\t%3,%1"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

(define_insn "call_value_internal4a"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem:SI (match_operand:SI 1 "register_operand" "r"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "!TARGET_LONG64 && TARGET_ABICALLS && TARGET_LONG_CALLS"
  "*
{
  if (REGNO (operands[1]) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%1\\n\\tjal\\t%3,%^\";
  else
    return \"jal\\t%3,%1\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_insn "call_value_internal4b"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem:DI (match_operand:DI 1 "se_register_operand" "r"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  "TARGET_LONG64 && TARGET_ABICALLS && TARGET_LONG_CALLS"
  "*
{
  if (REGNO (operands[1]) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%1\\n\\tjal\\t%3,%^\";
  else
    return \"jal\\t%3,%1\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_expand "call_value_multiple_internal0"
  [(parallel [(set (match_operand 0 "" "")
                   (call (match_operand 1 "" "")
                         (match_operand 2 "" "")))
              (set (match_operand 3 "" "")
                   (call (match_dup 1)
                         (match_dup 2)))
              (clobber (match_operand:SI 4 "" ""))])]
  ""
  "")

;; ??? May eventually need all 6 versions of the call patterns with multiple
;; return values.

(define_insn "call_value_multiple_internal2"
  [(set (match_operand 0 "register_operand" "=df")
        (call (mem (match_operand 1 "call_insn_operand" "ri"))
              (match_operand 2 "" "i")))
   (set (match_operand 3 "register_operand" "=df")
        (call (mem (match_dup 1))
              (match_dup 2)))
   (clobber (match_operand:SI 4 "register_operand" "=d"))]
  "TARGET_ABICALLS && !TARGET_LONG_CALLS"
  "*
{
  register rtx target = operands[1];

  if (GET_CODE (target) == SYMBOL_REF)
    {
      if (GET_MODE (target) == SImode)
        return \"la\\t%^,%1\\n\\tjal\\t%4,%^\";
      else
        return \"la\\t%^,%1\\n\\tjal\\t%4,%^\";
    }
  else if (GET_CODE (target) == CONST_INT)
    return \"li\\t%^,%1\\n\\tjal\\t%4,%^\";
  else if (REGNO (target) != PIC_FUNCTION_ADDR_REGNUM)
    return \"move\\t%^,%1\\n\\tjal\\t%4,%^\";
  else
    return \"jal\\t%4,%1\";
}"
  [(set_attr "type"     "call")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])


;; Call subroutine returning any type.

(define_expand "untyped_call"
  [(parallel [(call (match_operand 0 "" "")
                    (const_int 0))
              (match_operand 1 "" "")
              (match_operand 2 "" "")])]
  ""
  "
{
  if (operands[0])              /* silence statement not reached warnings */
    {
      int i;

      emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx));

      for (i = 0; i < XVECLEN (operands[2], 0); i++)
        {
          rtx set = XVECEXP (operands[2], 0, i);
          emit_move_insn (SET_DEST (set), SET_SRC (set));
        }

      emit_insn (gen_blockage ());
      DONE;
    }
}")
\f
;;
;;  ....................
;;
;;      MISC.
;;
;;  ....................
;;

(define_insn "nop"
  [(const_int 0)]
  ""
  "%(nop%)"
  [(set_attr "type"     "nop")
   (set_attr "mode"     "none")
   (set_attr "length"   "1")])

;; The MIPS chip does not seem to require stack probes.
;;
;; (define_expand "probe"
;;   [(set (match_dup 0)
;;      (match_dup 1))]
;;   ""
;;   "
;; {
;;   operands[0] = gen_reg_rtx (SImode);
;;   operands[1] = gen_rtx (MEM, SImode, stack_pointer_rtx);
;;   MEM_VOLATILE_P (operands[1]) = TRUE;
;; 
;;   /* fall through and generate default code */
;; }")
;;
\f
;;
;; MIPS4 Conditional move instructions.

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (if_then_else:SI
         (match_operator 4 "equality_op"
                         [(match_operand:SI 1 "register_operand" "d,d")
                          (const_int 0)])
         (match_operand:SI 2 "reg_or_0_operand" "dJ,0")
         (match_operand:SI 3 "reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4"
  "@
    mov%B4\\t%0,%z2,%1
    mov%b4\\t%0,%z3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "SI")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (if_then_else:SI
         (match_operator 4 "equality_op"
                         [(match_operand:DI 1 "se_register_operand" "d,d")
                          (const_int 0)])
         (match_operand:SI 2 "reg_or_0_operand" "dJ,0")
         (match_operand:SI 3 "reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4"
  "@
    mov%B4\\t%0,%z2,%1
    mov%b4\\t%0,%z3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "SI")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
        (if_then_else:SI
         (match_operator 3 "equality_op" [(match_operand:CC 4
                                                            "register_operand"
                                                            "z,z")
                                          (const_int 0)])
         (match_operand:SI 1 "reg_or_0_operand" "dJ,0")
         (match_operand:SI 2 "reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "@
    mov%T3\\t%0,%z1,%4
    mov%t3\\t%0,%z2,%4"
  [(set_attr "type" "move")
   (set_attr "mode" "SI")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (if_then_else:DI
         (match_operator 4 "equality_op"
                         [(match_operand:SI 1 "register_operand" "d,d")
                          (const_int 0)])
         (match_operand:DI 2 "se_reg_or_0_operand" "dJ,0")
         (match_operand:DI 3 "se_reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4"
  "@
    mov%B4\\t%0,%z2,%1
    mov%b4\\t%0,%z3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "DI")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (if_then_else:DI
         (match_operator 4 "equality_op"
                         [(match_operand:DI 1 "se_register_operand" "d,d")
                          (const_int 0)])
         (match_operand:DI 2 "se_reg_or_0_operand" "dJ,0")
         (match_operand:DI 3 "se_reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4"
  "@
    mov%B4\\t%0,%z2,%1
    mov%b4\\t%0,%z3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "DI")])

(define_insn ""
  [(set (match_operand:DI 0 "register_operand" "=d,d")
        (if_then_else:DI
         (match_operator 3 "equality_op" [(match_operand:CC 4
                                                            "register_operand"
                                                            "z,z")
                                          (const_int 0)])
         (match_operand:DI 1 "se_reg_or_0_operand" "dJ,0")
         (match_operand:DI 2 "se_reg_or_0_operand" "0,dJ")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "@
    mov%T3\\t%0,%z1,%4
    mov%t3\\t%0,%z2,%4"
  [(set_attr "type" "move")
   (set_attr "mode" "DI")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f,f")
        (if_then_else:SF
         (match_operator 4 "equality_op"
                         [(match_operand:SI 1 "register_operand" "d,d")
                          (const_int 0)])
         (match_operand:SF 2 "register_operand" "f,0")
         (match_operand:SF 3 "register_operand" "0,f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "@
    mov%B4.s\\t%0,%2,%1
    mov%b4.s\\t%0,%3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "SF")])

(define_insn ""
  [(set (match_operand:SF 0 "register_operand" "=f,f")
        (if_then_else:SF
         (match_operator 3 "equality_op" [(match_operand:CC 4
                                                            "register_operand"
                                                            "z,z")
                                          (const_int 0)])
         (match_operand:SF 1 "register_operand" "f,0")
         (match_operand:SF 2 "register_operand" "0,f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "@
    mov%T3.s\\t%0,%1,%4
    mov%t3.s\\t%0,%2,%4"
  [(set_attr "type" "move")
   (set_attr "mode" "SF")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f,f")
        (if_then_else:DF
         (match_operator 4 "equality_op"
                         [(match_operand:SI 1 "register_operand" "d,d")
                          (const_int 0)])
         (match_operand:DF 2 "register_operand" "f,0")
         (match_operand:DF 3 "register_operand" "0,f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "@
    mov%B4.d\\t%0,%2,%1
    mov%b4.d\\t%0,%3,%1"
  [(set_attr "type" "move")
   (set_attr "mode" "DF")])

(define_insn ""
  [(set (match_operand:DF 0 "register_operand" "=f,f")
        (if_then_else:DF
         (match_operator 3 "equality_op" [(match_operand:CC 4
                                                            "register_operand"
                                                            "z,z")
                                          (const_int 0)])
         (match_operand:DF 1 "register_operand" "f,0")
         (match_operand:DF 2 "register_operand" "0,f")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "@
    mov%T3.d\\t%0,%1,%4
    mov%t3.d\\t%0,%2,%4"
  [(set_attr "type" "move")
   (set_attr "mode" "DF")])

;; These are the main define_expand's used to make conditional moves.

(define_expand "movsicc"
  [(set (match_dup 4) (match_operand 1 "comparison_operator" ""))
   (set (match_operand:SI 0 "register_operand" "")
        (if_then_else:SI (match_dup 5)
                         (match_operand:SI 2 "reg_or_0_operand" "")
                         (match_operand:SI 3 "reg_or_0_operand" "")))]
  "mips_isa >= 4"
  "
{
  gen_conditional_move (operands);
  DONE;
}")

(define_expand "movdicc"
  [(set (match_dup 4) (match_operand 1 "comparison_operator" ""))
   (set (match_operand:DI 0 "register_operand" "")
        (if_then_else:DI (match_dup 5)
                         (match_operand:DI 2 "se_reg_or_0_operand" "")
                         (match_operand:DI 3 "se_reg_or_0_operand" "")))]
  "mips_isa >= 4"
  "
{
  gen_conditional_move (operands);
  DONE;
}")

(define_expand "movsfcc"
  [(set (match_dup 4) (match_operand 1 "comparison_operator" ""))
   (set (match_operand:SF 0 "register_operand" "")
        (if_then_else:SF (match_dup 5)
                         (match_operand:SF 2 "register_operand" "")
                         (match_operand:SF 3 "register_operand" "")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT"
  "
{
  gen_conditional_move (operands);
  DONE;
}")

(define_expand "movdfcc"
  [(set (match_dup 4) (match_operand 1 "comparison_operator" ""))
   (set (match_operand:DF 0 "register_operand" "")
        (if_then_else:DF (match_dup 5)
                         (match_operand:DF 2 "register_operand" "")
                         (match_operand:DF 3 "register_operand" "")))]
  "mips_isa >= 4 && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
  "
{
  gen_conditional_move (operands);
  DONE;
}")
\f
;;
;;  ....................
;;
;;      mips16 inline constant tables
;;
;;  ....................
;;

(define_insn "consttable_qi"
  [(unspec_volatile [(match_operand:QI 0 "consttable_operand" "=g")] 10)]
  "TARGET_MIPS16"
  "*
{
  assemble_integer (operands[0], 1, 1);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "QI")
   (set_attr "length"   "2")])

(define_insn "consttable_hi"
  [(unspec_volatile [(match_operand:HI 0 "consttable_operand" "=g")] 11)]
  "TARGET_MIPS16"
  "*
{
  assemble_integer (operands[0], 2, 1);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "HI")
   (set_attr "length"   "2")])

(define_insn "consttable_si"
  [(unspec_volatile [(match_operand:SI 0 "consttable_operand" "=g")] 12)]
  "TARGET_MIPS16"
  "*
{
  assemble_integer (operands[0], 4, 1);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_insn "consttable_di"
  [(unspec_volatile [(match_operand:DI 0 "consttable_operand" "=g")] 13)]
  "TARGET_MIPS16"
  "*
{
  assemble_integer (operands[0], 8, 1);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "DI")
   (set_attr "length"   "4")])

(define_insn "consttable_sf"
  [(unspec_volatile [(match_operand:SF 0 "consttable_operand" "=g")] 14)]
  "TARGET_MIPS16"
  "*
{
  union real_extract u;

  if (GET_CODE (operands[0]) != CONST_DOUBLE)
    abort ();
  bcopy ((char *) &CONST_DOUBLE_LOW (operands[0]), (char *) &u, sizeof u);
  assemble_real (u.d, SFmode);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "SF")
   (set_attr "length"   "2")])

(define_insn "consttable_df"
  [(unspec_volatile [(match_operand:DF 0 "consttable_operand" "=g")] 15)]
  "TARGET_MIPS16"
  "*
{
  union real_extract u;

  if (GET_CODE (operands[0]) != CONST_DOUBLE)
    abort ();
  bcopy ((char *) &CONST_DOUBLE_LOW (operands[0]), (char *) &u, sizeof u);
  assemble_real (u.d, DFmode);
  return \"\";
}"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "DF")
   (set_attr "length"   "4")])

(define_insn "align_2"
  [(unspec_volatile [(const_int 0)] 16)]
  "TARGET_MIPS16"
  ".align 1"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "HI")
   (set_attr "length"   "2")])

(define_insn "align_4"
  [(unspec_volatile [(const_int 0)] 17)]
  "TARGET_MIPS16"
  ".align 2"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "SI")
   (set_attr "length"   "2")])

(define_insn "align_8"
  [(unspec_volatile [(const_int 0)] 18)]
  "TARGET_MIPS16"
  ".align 3"
  [(set_attr "type"     "unknown")
   (set_attr "mode"     "DI")
   (set_attr "length"   "3")])
\f
;;
;;  ....................
;;
;;      mips16 peepholes
;;
;;  ....................
;;

;; On the mips16, reload will sometimes decide that a pseudo register
;; should go into $24, and then later on have to reload that register.
;; When that happens, we get a load of a general register followed by
;; a move from the general register to $24 followed by a branch.
;; These peepholes catch the common case, and fix it to just use the
;; general register for the branch.

(define_peephole
  [(set (match_operand:SI 0 "register_operand" "=t")
        (match_operand:SI 1 "register_operand" "d"))
   (set (pc)
        (if_then_else (match_operator:SI 2 "equality_op" [(match_dup 0)
                                                          (const_int 0)])
                      (match_operand 3 "pc_or_label_operand" "")
                      (match_operand 4 "pc_or_label_operand" "")))]
  "TARGET_MIPS16
   && GET_CODE (operands[0]) == REG
   && REGNO (operands[0]) == 24
   && dead_or_set_p (insn, operands[0])
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))"
  "*
{
  if (operands[3] != pc_rtx)
    return \"%*b%C2z\\t%1,%3\";
  else
    return \"%*b%N2z\\t%1,%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_peephole
  [(set (match_operand:DI 0 "register_operand" "=t")
        (match_operand:DI 1 "register_operand" "d"))
   (set (pc)
        (if_then_else (match_operator:DI 2 "equality_op" [(match_dup 0)
                                                          (const_int 0)])
                      (match_operand 3 "pc_or_label_operand" "")
                      (match_operand 4 "pc_or_label_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT
   && GET_CODE (operands[0]) == REG
   && REGNO (operands[0]) == 24
   && dead_or_set_p (insn, operands[0])
   && GET_CODE (operands[1]) == REG
   && M16_REG_P (REGNO (operands[1]))"
  "*
{
  if (operands[3] != pc_rtx)
    return \"%*b%C2z\\t%1,%3\";
  else
    return \"%*b%N2z\\t%1,%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

;; We can also have the reverse reload: reload will spill $24 into
;; another register, and then do a branch on that register when it
;; could have just stuck with $24.

(define_peephole
  [(set (match_operand:SI 0 "register_operand" "=d")
        (match_operand:SI 1 "register_operand" "t"))
   (set (pc)
        (if_then_else (match_operator:SI 2 "equality_op" [(match_dup 0)
                                                          (const_int 0)])
                      (match_operand 3 "pc_or_label_operand" "")
                      (match_operand 4 "pc_or_label_operand" "")))]
  "TARGET_MIPS16
   && GET_CODE (operands[1]) == REG
   && REGNO (operands[1]) == 24
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && dead_or_set_p (insn, operands[0])"
  "*
{
  if (operands[3] != pc_rtx)
    return \"%*bt%C2z\\t%3\";
  else
    return \"%*bt%N2z\\t%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])

(define_peephole
  [(set (match_operand:DI 0 "register_operand" "=d")
        (match_operand:DI 1 "register_operand" "t"))
   (set (pc)
        (if_then_else (match_operator:DI 2 "equality_op" [(match_dup 0)
                                                          (const_int 0)])
                      (match_operand 3 "pc_or_label_operand" "")
                      (match_operand 4 "pc_or_label_operand" "")))]
  "TARGET_MIPS16 && TARGET_64BIT
   && GET_CODE (operands[1]) == REG
   && REGNO (operands[1]) == 24
   && GET_CODE (operands[0]) == REG
   && M16_REG_P (REGNO (operands[0]))
   && dead_or_set_p (insn, operands[0])"
  "*
{
  if (operands[3] != pc_rtx)
    return \"%*bt%C2z\\t%3\";
  else
    return \"%*bt%N2z\\t%4\";
}"
  [(set_attr "type"     "branch")
   (set_attr "mode"     "none")
   (set_attr "length"   "2")])