/* Definitions of target machine for GCC for IA-32.
Copyright (C) 1988, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003 Free Software Foundation, Inc.
+ 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
const int lea; /* cost of a lea instruction */
const int shift_var; /* variable shift costs */
const int shift_const; /* constant shift costs */
- const int mult_init[5]; /* cost of starting a multiply
+ const int mult_init[5]; /* cost of starting a multiply
in QImode, HImode, SImode, DImode, TImode*/
const int mult_bit; /* cost of multiply per each bit set */
- const int divide[5]; /* cost of a divide/mod
+ const int divide[5]; /* cost of a divide/mod
in QImode, HImode, SImode, DImode, TImode*/
int movsx; /* The cost of movsx operation. */
int movzx; /* The cost of movzx operation. */
#define MASK_MMX 0x00002000 /* Support MMX regs/builtins */
#define MASK_SSE 0x00004000 /* Support SSE regs/builtins */
#define MASK_SSE2 0x00008000 /* Support SSE2 regs/builtins */
-#define MASK_PNI 0x00010000 /* Support PNI regs/builtins */
+#define MASK_SSE3 0x00010000 /* Support SSE3 regs/builtins */
#define MASK_3DNOW 0x00020000 /* Support 3Dnow builtins */
#define MASK_3DNOW_A 0x00040000 /* Support Athlon 3Dnow builtins */
#define MASK_128BIT_LONG_DOUBLE 0x00080000 /* long double size is 128bit */
This is because FreeBSD lacks these in the math-emulator-code */
#define TARGET_NO_FANCY_MATH_387 (target_flags & MASK_NO_FANCY_MATH_387)
+/* Generate 387 floating point intrinsics for the current target. */
+#define TARGET_USE_FANCY_MATH_387 (! TARGET_NO_FANCY_MATH_387)
+
/* Don't create frame pointers for leaf functions */
#define TARGET_OMIT_LEAF_FRAME_POINTER \
(target_flags & MASK_OMIT_LEAF_FRAME_POINTER)
#endif
#endif
+#define HAS_LONG_COND_BRANCH 1
+#define HAS_LONG_UNCOND_BRANCH 1
+
/* Avoid adding %gs:0 in TLS references; use %gs:address directly. */
#define TARGET_TLS_DIRECT_SEG_REFS (target_flags & MASK_TLS_DIRECT_SEG_REFS)
#define TARGET_PENTIUM4 (ix86_tune == PROCESSOR_PENTIUM4)
#define TARGET_K8 (ix86_tune == PROCESSOR_K8)
#define TARGET_ATHLON_K8 (TARGET_K8 || TARGET_ATHLON)
+#define TARGET_NOCONA (ix86_tune == PROCESSOR_NOCONA)
#define TUNEMASK (1 << ix86_tune)
extern const int x86_use_leave, x86_push_memory, x86_zero_extend_with_and;
extern const int x86_sse_partial_reg_dependency, x86_sse_partial_regs;
extern const int x86_sse_typeless_stores, x86_sse_load0_by_pxor;
extern const int x86_use_ffreep, x86_sse_partial_regs_for_cvtsd2ss;
-extern const int x86_inter_unit_moves;
+extern const int x86_inter_unit_moves, x86_schedule;
+extern const int x86_use_bt;
extern int x86_prefetch_sse;
#define TARGET_USE_LEAVE (x86_use_leave & TUNEMASK)
#define TARGET_USE_FFREEP (x86_use_ffreep & TUNEMASK)
#define TARGET_REP_MOVL_OPTIMAL (x86_rep_movl_optimal & TUNEMASK)
#define TARGET_INTER_UNIT_MOVES (x86_inter_unit_moves & TUNEMASK)
+#define TARGET_FOUR_JUMP_LIMIT (x86_four_jump_limit & TUNEMASK)
+#define TARGET_SCHEDULE (x86_schedule & TUNEMASK)
+#define TARGET_USE_BT (x86_use_bt & TUNEMASK)
#define TARGET_STACK_PROBE (target_flags & MASK_STACK_PROBE)
#define TARGET_SSE ((target_flags & MASK_SSE) != 0)
#define TARGET_SSE2 ((target_flags & MASK_SSE2) != 0)
-#define TARGET_PNI ((target_flags & MASK_PNI) != 0)
+#define TARGET_SSE3 ((target_flags & MASK_SSE3) != 0)
#define TARGET_SSE_MATH ((ix86_fpmath & FPMATH_SSE) != 0)
#define TARGET_MIX_SSE_I387 ((ix86_fpmath & FPMATH_SSE) \
&& (ix86_fpmath & FPMATH_387))
/* WARNING: Do not mark empty strings for translation, as calling
gettext on an empty string does NOT return an empty
- string. */
+ string. */
#define TARGET_SWITCHES \
N_("Support MMX, SSE and SSE2 built-in functions and code generation") }, \
{ "no-sse2", -MASK_SSE2, \
N_("Do not support MMX, SSE and SSE2 built-in functions and code generation") }, \
- { "pni", MASK_PNI, \
- N_("Support MMX, SSE, SSE2 and PNI built-in functions and code generation") },\
- { "no-pni", -MASK_PNI, \
- N_("Do not support MMX, SSE, SSE2 and PNI built-in functions and code generation") },\
+ { "sse3", MASK_SSE3, \
+ N_("Support MMX, SSE, SSE2 and SSE3 built-in functions and code generation") },\
+ { "no-sse3", -MASK_SSE3, \
+ N_("Do not support MMX, SSE, SSE2 and SSE3 built-in functions and code generation") },\
{ "128bit-long-double", MASK_128BIT_LONG_DOUBLE, \
N_("sizeof(long double) is 16") }, \
{ "96bit-long-double", -MASK_128BIT_LONG_DOUBLE, \
redefines this to 1. */
#define TARGET_MACHO 0
+/* Subtargets may reset this to 1 in order to enable 96-bit long double
+ with the rounding mode forced to 53 bits. */
+#define TARGET_96_ROUND_53_LONG_DOUBLE 0
+
/* This macro is similar to `TARGET_SWITCHES' but defines names of
command options that have values. Its definition is an
initializer with a subgrouping for each command option.
{ "cmodel=", &ix86_cmodel_string, \
N_("Use given x86-64 code model"), 0}, \
{ "debug-arg", &ix86_debug_arg_string, \
- "" /* Undocumented. */, 0}, \
+ "" /* Undocumented. */, 0}, \
{ "debug-addr", &ix86_debug_addr_string, \
- "" /* Undocumented. */, 0}, \
+ "" /* Undocumented. */, 0}, \
{ "asm=", &ix86_asm_string, \
N_("Use given assembler dialect"), 0}, \
{ "tls-dialect=", &ix86_tls_dialect_string, \
builtin_define ("__tune_k8__"); \
else if (TARGET_PENTIUM4) \
builtin_define ("__tune_pentium4__"); \
+ else if (TARGET_NOCONA) \
+ builtin_define ("__tune_nocona__"); \
\
if (TARGET_MMX) \
builtin_define ("__MMX__"); \
builtin_define ("__SSE__"); \
if (TARGET_SSE2) \
builtin_define ("__SSE2__"); \
- if (TARGET_PNI) \
- builtin_define ("__PNI__"); \
+ if (TARGET_SSE3) \
+ builtin_define ("__SSE3__"); \
if (TARGET_SSE_MATH && TARGET_SSE) \
builtin_define ("__SSE_MATH__"); \
if (TARGET_SSE_MATH && TARGET_SSE2) \
builtin_define ("__pentium4"); \
builtin_define ("__pentium4__"); \
} \
+ else if (ix86_arch == PROCESSOR_NOCONA) \
+ { \
+ builtin_define ("__nocona"); \
+ builtin_define ("__nocona__"); \
+ } \
} \
while (0)
#define TARGET_CPU_DEFAULT_athlon 11
#define TARGET_CPU_DEFAULT_athlon_sse 12
#define TARGET_CPU_DEFAULT_k8 13
+#define TARGET_CPU_DEFAULT_pentium_m 14
+#define TARGET_CPU_DEFAULT_prescott 15
+#define TARGET_CPU_DEFAULT_nocona 16
#define TARGET_CPU_DEFAULT_NAMES {"i386", "i486", "pentium", "pentium-mmx",\
"pentiumpro", "pentium2", "pentium3", \
"pentium4", "k6", "k6-2", "k6-3",\
- "athlon", "athlon-4", "k8"}
+ "athlon", "athlon-4", "k8", \
+ "pentium-m", "prescott", "nocona"}
#ifndef CC1_SPEC
#define CC1_SPEC "%(cc1_cpu) "
\f
/* target machine storage layout */
-#define LONG_DOUBLE_TYPE_SIZE 96
+#define LONG_DOUBLE_TYPE_SIZE 80
/* Set the value of FLT_EVAL_METHOD in float.h. When using only the
FPU, assume that the fpcw is set to extended precision; when using
#define INT_TYPE_SIZE 32
#define FLOAT_TYPE_SIZE 32
#define LONG_TYPE_SIZE BITS_PER_WORD
-#define MAX_WCHAR_TYPE_SIZE 32
#define DOUBLE_TYPE_SIZE 64
#define LONG_LONG_TYPE_SIZE 64
#if defined (TARGET_BI_ARCH) || TARGET_64BIT_DEFAULT
#define MAX_BITS_PER_WORD 64
-#define MAX_LONG_TYPE_SIZE 64
#else
#define MAX_BITS_PER_WORD 32
-#define MAX_LONG_TYPE_SIZE 32
#endif
/* Define this if most significant byte of a word is the lowest numbered. */
and are not available for the register allocator.
On the 80386, the stack pointer is such, as is the arg pointer.
- The value is a mask - bit 1 is set for fixed registers
- for 32bit target, while 2 is set for fixed registers for 64bit.
- Proper value is computed in the CONDITIONAL_REGISTER_USAGE.
+ The value is zero if the register is not fixed on either 32 or
+ 64 bit targets, one if the register if fixed on both 32 and 64
+ bit targets, two if it is only fixed on 32bit targets and three
+ if its only fixed on 64bit targets.
+ Proper values are computed in the CONDITIONAL_REGISTER_USAGE.
*/
#define FIXED_REGISTERS \
/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7*/ \
-{ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, \
+{ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
/*arg,flags,fpsr,dir,frame*/ \
- 3, 3, 3, 3, 3, \
+ 1, 1, 1, 1, 1, \
/*xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7*/ \
0, 0, 0, 0, 0, 0, 0, 0, \
/*mmx0,mmx1,mmx2,mmx3,mmx4,mmx5,mmx6,mmx7*/ \
0, 0, 0, 0, 0, 0, 0, 0, \
/* r8, r9, r10, r11, r12, r13, r14, r15*/ \
- 1, 1, 1, 1, 1, 1, 1, 1, \
+ 2, 2, 2, 2, 2, 2, 2, 2, \
/*xmm8,xmm9,xmm10,xmm11,xmm12,xmm13,xmm14,xmm15*/ \
- 1, 1, 1, 1, 1, 1, 1, 1}
+ 2, 2, 2, 2, 2, 2, 2, 2}
/* 1 for registers not available across function calls.
and the register where structure-value addresses are passed.
Aside from that, you can include as many other registers as you like.
- The value is a mask - bit 1 is set for call used
- for 32bit target, while 2 is set for call used for 64bit.
- Proper value is computed in the CONDITIONAL_REGISTER_USAGE.
+ The value is zero if the register is not fixed on either 32 or
+ 64 bit targets, one if the register if fixed on both 32 and 64
+ bit targets, two if it is only fixed on 32bit targets and three
+ if its only fixed on 64bit targets.
+ Proper values are computed in the CONDITIONAL_REGISTER_USAGE.
*/
#define CALL_USED_REGISTERS \
/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7*/ \
-{ 3, 3, 3, 0, 2, 2, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, \
+{ 1, 1, 1, 0, 3, 3, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
/*arg,flags,fpsr,dir,frame*/ \
- 3, 3, 3, 3, 3, \
+ 1, 1, 1, 1, 1, \
/*xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7*/ \
- 3, 3, 3, 3, 3, 3, 3, 3, \
+ 1, 1, 1, 1, 1, 1, 1, 1, \
/*mmx0,mmx1,mmx2,mmx3,mmx4,mmx5,mmx6,mmx7*/ \
- 3, 3, 3, 3, 3, 3, 3, 3, \
+ 1, 1, 1, 1, 1, 1, 1, 1, \
/* r8, r9, r10, r11, r12, r13, r14, r15*/ \
- 3, 3, 3, 3, 1, 1, 1, 1, \
+ 1, 1, 1, 1, 2, 2, 2, 2, \
/*xmm8,xmm9,xmm10,xmm11,xmm12,xmm13,xmm14,xmm15*/ \
- 3, 3, 3, 3, 3, 3, 3, 3} \
+ 1, 1, 1, 1, 1, 1, 1, 1} \
/* Order in which to allocate registers. Each register must be
listed once, even those in FIXED_REGISTERS. List frame pointer
int i; \
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \
{ \
- fixed_regs[i] = (fixed_regs[i] & (TARGET_64BIT ? 2 : 1)) != 0; \
- call_used_regs[i] = (call_used_regs[i] \
- & (TARGET_64BIT ? 2 : 1)) != 0; \
+ if (fixed_regs[i] > 1) \
+ fixed_regs[i] = (fixed_regs[i] == (TARGET_64BIT ? 3 : 2)); \
+ if (call_used_regs[i] > 1) \
+ call_used_regs[i] = (call_used_regs[i] \
+ == (TARGET_64BIT ? 3 : 2)); \
} \
if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM) \
{ \
#define VALID_SSE2_REG_MODE(MODE) \
((MODE) == V16QImode || (MODE) == V8HImode || (MODE) == V2DFmode \
- || (MODE) == V2DImode)
+ || (MODE) == V2DImode || (MODE) == DFmode \
+ || VALID_MMX_REG_MODE (MODE))
#define VALID_SSE_REG_MODE(MODE) \
((MODE) == TImode || (MODE) == V4SFmode || (MODE) == V4SImode \
- || (MODE) == SFmode || (MODE) == TFmode \
- /* Always accept SSE2 modes so that xmmintrin.h compiles. */ \
- || VALID_SSE2_REG_MODE (MODE) \
- || (TARGET_SSE2 && ((MODE) == DFmode || VALID_MMX_REG_MODE (MODE))))
+ || (MODE) == SFmode || (MODE) == TFmode)
#define VALID_MMX_REG_MODE_3DNOW(MODE) \
((MODE) == V2SFmode || (MODE) == SFmode)
((MODE) == DImode || (MODE) == V8QImode || (MODE) == V4HImode \
|| (MODE) == V2SImode || (MODE) == SImode)
-#define VECTOR_MODE_SUPPORTED_P(MODE) \
- (VALID_SSE_REG_MODE (MODE) && TARGET_SSE ? 1 \
- : VALID_MMX_REG_MODE (MODE) && TARGET_MMX ? 1 \
- : VALID_MMX_REG_MODE_3DNOW (MODE) && TARGET_3DNOW ? 1 : 0)
+#define UNITS_PER_SIMD_WORD \
+ (TARGET_SSE ? 16 : TARGET_MMX || TARGET_3DNOW ? 8 : 0)
#define VALID_FP_MODE_P(MODE) \
((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode \
#define FIRST_STACK_REG FIRST_FLOAT_REG
#define LAST_STACK_REG (FIRST_FLOAT_REG + 7)
-#define FLAGS_REG 17
-#define FPSR_REG 18
-#define DIRFLAG_REG 19
-
#define FIRST_SSE_REG (FRAME_POINTER_REGNUM + 1)
#define LAST_SSE_REG (FIRST_SSE_REG + 7)
#define GOT_SYMBOL_NAME "_GLOBAL_OFFSET_TABLE_"
-/* Register in which address to store a structure value
- arrives in the function. On the 386, the prologue
- copies this from the stack to register %eax. */
-#define STRUCT_VALUE_INCOMING 0
-
-/* Place in which caller passes the structure value address.
- 0 means push the value on the stack like an argument. */
-#define STRUCT_VALUE 0
-
/* A C expression which can inhibit the returning of certain function
values in registers, based on the type of value. A nonzero value
says to return the function value in memory, just as large
/* This is overridden by <cygwin.h>. */
#define MS_AGGREGATE_RETURN 0
+/* This is overridden by <netware.h>. */
+#define KEEP_AGGREGATE_RETURN_POINTER 0
\f
/* Define the classes of registers for register constraints in the
machine description. Also define ranges of constants.
#define Q_CLASS_P(CLASS) \
reg_class_subset_p ((CLASS), Q_REGS)
-/* Give names of register classes as strings for dump file. */
+/* Give names of register classes as strings for dump file. */
#define REG_CLASS_NAMES \
{ "NO_REGS", \
#define INDEX_REG_CLASS INDEX_REGS
#define BASE_REG_CLASS GENERAL_REGS
+/* Unused letters:
+ B TU W
+ h jk vw z
+*/
+
/* Get reg_class from a letter such as appears in the machine description. */
#define REG_CLASS_FROM_LETTER(C) \
(C) == 'y' ? TARGET_MMX ? MMX_REGS : NO_REGS : \
(C) == 'A' ? AD_REGS : \
(C) == 'D' ? DIREG : \
- (C) == 'S' ? SIREG : NO_REGS)
+ (C) == 'S' ? SIREG : \
+ (C) == 'l' ? INDEX_REGS : \
+ NO_REGS)
/* The letters I, J, K, L and M in a register constraint string
can be used to stand for particular ranges of immediate operands.
the constraint letter C. If C is not defined as an extra
constraint, the value returned should be 0 regardless of VALUE. */
-#define EXTRA_CONSTRAINT(VALUE, D) \
- ((D) == 'e' ? x86_64_sign_extended_value (VALUE) \
- : (D) == 'Z' ? x86_64_zero_extended_value (VALUE) \
- : (D) == 'C' ? standard_sse_constant_p (VALUE) \
+#define EXTRA_CONSTRAINT(VALUE, D) \
+ ((D) == 'e' ? x86_64_immediate_operand (VALUE, VOIDmode) \
+ : (D) == 'Z' ? x86_64_zext_immediate_operand (VALUE, VOIDmode) \
+ : (D) == 'C' ? standard_sse_constant_p (VALUE) \
: 0)
/* Place additional restrictions on the register class to use when it
|| ((CLASS) == FP_SECOND_REG))
/* Return a class of registers that cannot change FROM mode to TO mode.
-
+
x87 registers can't do subreg as all values are reformated to extended
precision. XMM registers does not support with nonzero offsets equal
to 4, 8 and 12 otherwise valid for integer registers. Since we can't
|| MAYBE_MMX_CLASS_P (CLASS) \
: GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \
? reg_classes_intersect_p (FLOAT_REGS, (CLASS)) : 0)
-
-/* A C statement that adds to CLOBBERS any hard regs the port wishes
- to automatically clobber for all asms.
-
- We do this in the new i386 backend to maintain source compatibility
- with the old cc0-based compiler. */
-
-#define MD_ASM_CLOBBERS(CLOBBERS) \
- do { \
- (CLOBBERS) = tree_cons (NULL_TREE, build_string (5, "flags"), \
- (CLOBBERS)); \
- (CLOBBERS) = tree_cons (NULL_TREE, build_string (4, "fpsr"), \
- (CLOBBERS)); \
- (CLOBBERS) = tree_cons (NULL_TREE, build_string (7, "dirflag"), \
- (CLOBBERS)); \
- } while (0)
\f
/* Stack layout; function entry, exit and calling. */
which. */
#define REG_PARM_STACK_SPACE(FNDECL) 0
-/* Define as a C expression that evaluates to nonzero if we do not know how
- to pass TYPE solely in registers. The file expr.h defines a
- definition that is usually appropriate, refer to expr.h for additional
- documentation. If `REG_PARM_STACK_SPACE' is defined, the argument will be
- computed in the stack and then loaded into a register. */
-#define MUST_PASS_IN_STACK(MODE, TYPE) ix86_must_pass_in_stack ((MODE), (TYPE))
-
/* Value is the number of bytes of arguments automatically
popped when returning from a subroutine call.
FUNDECL is the declaration node of the function (as a tree),
int fastcall; /* fastcall calling convention is used */
int sse_words; /* # sse words passed so far */
int sse_nregs; /* # sse registers available for passing */
+ int warn_sse; /* True when we want to warn about SSE ABI. */
+ int warn_mmx; /* True when we want to warn about MMX ABI. */
int sse_regno; /* next available sse register number */
+ int mmx_words; /* # mmx words passed so far */
+ int mmx_nregs; /* # mmx registers available for passing */
+ int mmx_regno; /* next available mmx register number */
int maybe_vaarg; /* true for calls to possibly vardic fncts. */
} CUMULATIVE_ARGS;
for a call to a function whose data type is FNTYPE.
For a library call, FNTYPE is 0. */
-#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL) \
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
init_cumulative_args (&(CUM), (FNTYPE), (LIBNAME), (FNDECL))
/* Update the data in CUM to advance over an argument
#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0
-/* A C expression that indicates when an argument must be passed by
- reference. If nonzero for an argument, a copy of that argument is
- made in memory and a pointer to the argument is passed instead of
- the argument itself. The pointer is passed in whatever way is
- appropriate for passing a pointer to that type. */
-
-#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \
- function_arg_pass_by_reference(&CUM, MODE, TYPE, NAMED)
-
-/* Perform any needed actions needed for a function that is receiving a
- variable number of arguments.
-
- CUM is as above.
-
- MODE and TYPE are the mode and type of the current parameter.
-
- PRETEND_SIZE is a variable that should be set to the amount of stack
- that must be pushed by the prolog to pretend that our caller pushed
- it.
-
- Normally, this macro will push all remaining incoming registers on the
- stack and set PRETEND_SIZE to the length of the registers pushed. */
-
-#define SETUP_INCOMING_VARARGS(CUM, MODE, TYPE, PRETEND_SIZE, NO_RTL) \
- ix86_setup_incoming_varargs (&(CUM), (MODE), (TYPE), &(PRETEND_SIZE), \
- (NO_RTL))
-
/* Implement `va_start' for varargs and stdarg. */
#define EXPAND_BUILTIN_VA_START(VALIST, NEXTARG) \
ix86_va_start (VALIST, NEXTARG)
-/* Implement `va_arg'. */
-#define EXPAND_BUILTIN_VA_ARG(VALIST, TYPE) \
- ix86_va_arg ((VALIST), (TYPE))
-
#define TARGET_ASM_FILE_END ix86_file_end
#define NEED_INDICATE_EXEC_STACK 0
been eliminated by then. */
-/* Non strict versions, pseudos are ok */
+/* Non strict versions, pseudos are ok. */
#define REG_OK_FOR_INDEX_NONSTRICT_P(X) \
(REGNO (X) < STACK_POINTER_REGNUM \
|| (REGNO (X) >= FIRST_REX_INT_REG \
#define REGPARM_MAX (TARGET_64BIT ? 6 : 3)
-#define SSE_REGPARM_MAX (TARGET_64BIT ? 8 : 0)
+#define SSE_REGPARM_MAX (TARGET_64BIT ? 8 : (TARGET_SSE ? 3 : 0))
+
+#define MMX_REGPARM_MAX (TARGET_64BIT ? 0 : (TARGET_MMX ? 3 : 0))
\f
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE (!TARGET_64BIT || flag_pic ? SImode : DImode)
-/* Define as C expression which evaluates to nonzero if the tablejump
- instruction expects the table to contain offsets from the address of the
- table.
- Do not define this if the table should contain absolute addresses. */
-/* #define CASE_VECTOR_PC_RELATIVE 1 */
-
/* Define this as 1 if `char' should by default be signed; else as 0. */
#define DEFAULT_SIGNED_CHAR 1
#define MOVE_MAX_PIECES (TARGET_64BIT ? 8 : 4)
/* If a memory-to-memory move would take MOVE_RATIO or more simple
- move-instruction pairs, we will do a movstr or libcall instead.
+ move-instruction pairs, we will do a movmem or libcall instead.
Increasing the value will always make code faster, but eventually
incurs high cost in increased code size.
#define MOVE_RATIO (optimize_size ? 3 : ix86_cost->move_ratio)
+/* If a clear memory operation would take CLEAR_RATIO or more simple
+ move-instruction sequences, we will do a clrmem or libcall instead. */
+
+#define CLEAR_RATIO (optimize_size ? 2 \
+ : ix86_cost->move_ratio > 6 ? 6 : ix86_cost->move_ratio)
+
/* Define if shifts truncate the shift count
which implies one can omit a sign-extension or zero-extension
of a shift count. */
is done just by pretending it is already truncated. */
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
-/* When a prototype says `char' or `short', really pass an `int'.
- (The 386 can't easily push less than an int.) */
-
-#define PROMOTE_PROTOTYPES 1
-
/* A macro to update M and UNSIGNEDP when an object whose type is
TYPE and which has the specified mode and signedness is to be
stored in a register. This macro is only called when TYPE is a
faster than one with a register address. */
#define NO_FUNCTION_CSE
-
-/* Define this macro if it is as good or better for a function to call
- itself with an explicit address than to call an address kept in a
- register. */
-
-#define NO_RECURSIVE_FUNCTION_CSE
\f
/* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE,
return the mode to be used for the comparison.
/* A C expression whose value is reversed condition code of the CODE for
comparison done in CC_MODE mode. */
-#define REVERSE_CONDITION(CODE, MODE) \
- ((MODE) != CCFPmode && (MODE) != CCFPUmode ? reverse_condition (CODE) \
- : reverse_condition_maybe_unordered (CODE))
+#define REVERSE_CONDITION(CODE, MODE) ix86_reverse_condition ((CODE), (MODE))
\f
/* Control the assembler format that we output, to the extent
For non floating point regs, the following are the HImode names.
For float regs, the stack top is sometimes referred to as "%st(0)"
- instead of just "%st". PRINT_REG handles this with the "y" code. */
+ instead of just "%st". PRINT_OPERAND handles this with the "y" code. */
#define HI_REGISTER_NAMES \
{"ax","dx","cx","bx","si","di","bp","sp", \
#define JUMP_TABLES_IN_TEXT_SECTION \
(!TARGET_64BIT && flag_pic && !HAVE_AS_GOTOFF_IN_DATA)
-/* A C statement that outputs an address constant appropriate to
- for DWARF debugging. */
-
-#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE, X) \
- i386_dwarf_output_addr_const ((FILE), (X))
-
/* Emit a dtp-relative reference to a TLS variable. */
#ifdef HAVE_AS_TLS
#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
((CODE) == '*' || (CODE) == '+' || (CODE) == '&')
-/* Print the name of a register based on its machine mode and number.
- If CODE is 'w', pretend the mode is HImode.
- If CODE is 'b', pretend the mode is QImode.
- If CODE is 'k', pretend the mode is SImode.
- If CODE is 'q', pretend the mode is DImode.
- If CODE is 'h', pretend the reg is the `high' byte register.
- If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op.
- If CODE is -1, it is not an error for X to be a virtual register. */
-
-#define PRINT_REG(X, CODE, FILE) \
- print_reg ((X), (CODE), (FILE))
-
#define PRINT_OPERAND(FILE, X, CODE) \
print_operand ((FILE), (X), (CODE))
#define RET return ""
#define AT_SP(MODE) (gen_rtx_MEM ((MODE), stack_pointer_rtx))
\f
-/* Define the codes that are matched by predicates in i386.c. */
-
-#define PREDICATE_CODES \
- {"x86_64_immediate_operand", {CONST_INT, SUBREG, REG, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_nonmemory_operand", {CONST_INT, SUBREG, REG, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_movabs_operand", {CONST_INT, SUBREG, REG, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_szext_nonmemory_operand", {CONST_INT, SUBREG, REG, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_general_operand", {CONST_INT, SUBREG, REG, MEM, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_szext_general_operand", {CONST_INT, SUBREG, REG, MEM, \
- SYMBOL_REF, LABEL_REF, CONST}}, \
- {"x86_64_zext_immediate_operand", {CONST_INT, CONST_DOUBLE, CONST, \
- SYMBOL_REF, LABEL_REF}}, \
- {"shiftdi_operand", {SUBREG, REG, MEM}}, \
- {"const_int_1_31_operand", {CONST_INT}}, \
- {"symbolic_operand", {SYMBOL_REF, LABEL_REF, CONST}}, \
- {"aligned_operand", {CONST_INT, CONST_DOUBLE, CONST, SYMBOL_REF, \
- LABEL_REF, SUBREG, REG, MEM}}, \
- {"pic_symbolic_operand", {CONST}}, \
- {"call_insn_operand", {REG, SUBREG, MEM, SYMBOL_REF}}, \
- {"sibcall_insn_operand", {REG, SUBREG, SYMBOL_REF}}, \
- {"constant_call_address_operand", {SYMBOL_REF, CONST}}, \
- {"const0_operand", {CONST_INT, CONST_DOUBLE}}, \
- {"const1_operand", {CONST_INT}}, \
- {"const248_operand", {CONST_INT}}, \
- {"const_0_to_3_operand", {CONST_INT}}, \
- {"const_0_to_7_operand", {CONST_INT}}, \
- {"const_0_to_15_operand", {CONST_INT}}, \
- {"const_0_to_255_operand", {CONST_INT}}, \
- {"incdec_operand", {CONST_INT}}, \
- {"mmx_reg_operand", {REG}}, \
- {"reg_no_sp_operand", {SUBREG, REG}}, \
- {"general_no_elim_operand", {CONST_INT, CONST_DOUBLE, CONST, \
- SYMBOL_REF, LABEL_REF, SUBREG, REG, MEM}}, \
- {"nonmemory_no_elim_operand", {CONST_INT, REG, SUBREG}}, \
- {"index_register_operand", {SUBREG, REG}}, \
- {"flags_reg_operand", {REG}}, \
- {"q_regs_operand", {SUBREG, REG}}, \
- {"non_q_regs_operand", {SUBREG, REG}}, \
- {"fcmov_comparison_operator", {EQ, NE, LTU, GTU, LEU, GEU, UNORDERED, \
- ORDERED, LT, UNLT, GT, UNGT, LE, UNLE, \
- GE, UNGE, LTGT, UNEQ}}, \
- {"sse_comparison_operator", {EQ, LT, LE, UNORDERED, NE, UNGE, UNGT, \
- ORDERED, UNEQ, UNLT, UNLE, LTGT, GE, GT \
- }}, \
- {"ix86_comparison_operator", {EQ, NE, LE, LT, GE, GT, LEU, LTU, GEU, \
- GTU, UNORDERED, ORDERED, UNLE, UNLT, \
- UNGE, UNGT, LTGT, UNEQ }}, \
- {"ix86_carry_flag_operator", {LTU, LT, UNLT, GT, UNGT, LE, UNLE, \
- GE, UNGE, LTGT, UNEQ}}, \
- {"cmp_fp_expander_operand", {CONST_DOUBLE, SUBREG, REG, MEM}}, \
- {"ext_register_operand", {SUBREG, REG}}, \
- {"binary_fp_operator", {PLUS, MINUS, MULT, DIV}}, \
- {"mult_operator", {MULT}}, \
- {"div_operator", {DIV}}, \
- {"arith_or_logical_operator", {PLUS, MULT, AND, IOR, XOR, SMIN, SMAX, \
- UMIN, UMAX, COMPARE, MINUS, DIV, MOD, \
- UDIV, UMOD, ASHIFT, ROTATE, ASHIFTRT, \
- LSHIFTRT, ROTATERT}}, \
- {"promotable_binary_operator", {PLUS, MULT, AND, IOR, XOR, ASHIFT}}, \
- {"memory_displacement_operand", {MEM}}, \
- {"cmpsi_operand", {CONST_INT, CONST_DOUBLE, CONST, SYMBOL_REF, \
- LABEL_REF, SUBREG, REG, MEM, AND}}, \
- {"long_memory_operand", {MEM}}, \
- {"tls_symbolic_operand", {SYMBOL_REF}}, \
- {"global_dynamic_symbolic_operand", {SYMBOL_REF}}, \
- {"local_dynamic_symbolic_operand", {SYMBOL_REF}}, \
- {"initial_exec_symbolic_operand", {SYMBOL_REF}}, \
- {"local_exec_symbolic_operand", {SYMBOL_REF}}, \
- {"any_fp_register_operand", {REG}}, \
- {"register_and_not_any_fp_reg_operand", {REG}}, \
- {"fp_register_operand", {REG}}, \
- {"register_and_not_fp_reg_operand", {REG}}, \
- {"zero_extended_scalar_load_operand", {MEM}}, \
- {"vector_move_operand", {CONST_VECTOR, SUBREG, REG, MEM}}, \
- {"no_seg_address_operand", {CONST_INT, CONST_DOUBLE, CONST, SYMBOL_REF, \
- LABEL_REF, SUBREG, REG, MEM, PLUS, MULT}},
-
-/* A list of predicates that do special things with modes, and so
- should not elicit warnings for VOIDmode match_operand. */
-
-#define SPECIAL_MODE_PREDICATES \
- "ext_register_operand",
-\f
/* Which processor to schedule for. The cpu attribute defines a list that
mirrors this list, so changes to i386.md must be made at the same time. */
PROCESSOR_ATHLON,
PROCESSOR_PENTIUM4,
PROCESSOR_K8,
+ PROCESSOR_NOCONA,
PROCESSOR_max
};
extern int ix86_regparm;
extern const char *ix86_regparm_string;
-extern int ix86_preferred_stack_boundary;
+extern unsigned int ix86_preferred_stack_boundary;
extern const char *ix86_preferred_stack_boundary_string;
extern int ix86_branch_cost;
Post-reload pass may be later used to eliminate the redundant fildcw if
needed. */
-enum fp_cw_mode {FP_CW_STORED, FP_CW_UNINITIALIZED, FP_CW_ANY};
/* Define this macro if the port needs extra instructions inserted
for mode switching in an optimizing compilation. */
starting counting at zero - determines the integer that is used to
refer to the mode-switched entity in question. */
-#define NUM_MODES_FOR_MODE_SWITCHING { FP_CW_ANY }
+#define NUM_MODES_FOR_MODE_SWITCHING { I387_CW_ANY }
/* ENTITY is an integer specifying a mode-switched entity. If
`OPTIMIZE_MODE_SWITCHING' is defined, you must define this macro to
return an integer value not larger than the corresponding element
in `NUM_MODES_FOR_MODE_SWITCHING', to denote the mode that ENTITY
- must be switched into prior to the execution of INSN. */
+ must be switched into prior to the execution of INSN.
+
+ The mode UNINITIALIZED is used to force re-load of possibly previously
+ stored control word after function call. The mode ANY specify that
+ function has no requirements on the control word and make no changes
+ in the bits we are interested in. */
#define MODE_NEEDED(ENTITY, I) \
(GET_CODE (I) == CALL_INSN \
|| (GET_CODE (I) == INSN && (asm_noperands (PATTERN (I)) >= 0 \
|| GET_CODE (PATTERN (I)) == ASM_INPUT))\
- ? FP_CW_UNINITIALIZED \
- : recog_memoized (I) < 0 || get_attr_type (I) != TYPE_FISTP \
- ? FP_CW_ANY \
- : FP_CW_STORED)
+ ? I387_CW_UNINITIALIZED \
+ : recog_memoized (I) < 0 \
+ ? I387_CW_ANY \
+ : get_attr_i387_cw (I))
/* This macro specifies the order in which modes for ENTITY are
processed. 0 is the highest priority. */
are to be inserted. */
#define EMIT_MODE_SET(ENTITY, MODE, HARD_REGS_LIVE) \
- ((MODE) == FP_CW_STORED \
+ ((MODE) != I387_CW_ANY && (MODE) != I387_CW_UNINITIALIZED \
? emit_i387_cw_initialization (assign_386_stack_local (HImode, 1), \
- assign_386_stack_local (HImode, 2)), 0\
+ assign_386_stack_local (HImode, 2), \
+ MODE), 0 \
: 0)
\f
/* Avoid renaming of stack registers, as doing so in combination with
scheduling just increases amount of live registers at time and in
the turn amount of fxch instructions needed.
- ??? Maybe Pentium chips benefits from renaming, someone can try... */
+ ??? Maybe Pentium chips benefits from renaming, someone can try.... */
#define HARD_REGNO_RENAME_OK(SRC, TARGET) \
((SRC) < FIRST_STACK_REG || (SRC) > LAST_STACK_REG)