[patch] h8300.md: Add two new patterns.
Kazu Hirata
kazu@cs.umass.edu
Wed Feb 19 17:48:00 GMT 2003
Hi,
Attached is a patch to add two new patterns.
Both patterns often occur when -mint32 is used.
Tested on h8300 port. Committed.
Kazu Hirata
2003-02-19 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (*iorsi3_two_qi_sext): New.
(*ashiftsi_sextqi_7): Likewise.
Index: h8300.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/h8300/h8300.md,v
retrieving revision 1.170
diff -u -r1.170 h8300.md
--- h8300.md 19 Feb 2003 13:00:27 -0000 1.170
+++ h8300.md 19 Feb 2003 17:42:14 -0000
@@ -2804,6 +2804,23 @@
[(set_attr "cc" "clobber")
(set_attr "length" "2")])
+(define_insn_and_split "*iorsi3_two_qi_sext"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (ior:SI (zero_extend:SI (match_operand:QI 1 "register_operand" "0"))
+ (ashift:SI (sign_extend:SI (match_operand:QI 2 "register_operand" "r"))
+ (const_int 8))))]
+ "(TARGET_H8300H || TARGET_H8300S)"
+ "#"
+ "&& reload_completed"
+ [(set (match_dup 3)
+ (ior:HI (zero_extend:HI (match_dup 1))
+ (ashift:HI (match_dup 4)
+ (const_int 8))))
+ (set (match_dup 0)
+ (sign_extend:SI (match_dup 3)))]
+ "operands[3] = gen_rtx_REG (HImode, REGNO (operands[0]));
+ operands[4] = gen_rtx_REG (HImode, REGNO (operands[2]));")
+
(define_insn "*iorsi3_ashift_31"
[(set (match_operand:SI 0 "register_operand" "=&r")
(ior:SI (ashift:SI (match_operand:SI 1 "register_operand" "r")
@@ -2994,6 +3011,27 @@
"xor\\t%X1,%w0"
[(set_attr "cc" "clobber")
(set_attr "length" "2")])
+
+;; ashift:SI
+
+(define_insn_and_split "*ashiftsi_sextqi_7"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (ashift:SI (sign_extend:SI (match_operand:QI 1 "register_operand" "0"))
+ (const_int 7)))]
+ "(TARGET_H8300H || TARGET_H8300S)"
+ "#"
+ "&& reload_completed"
+ [(parallel [(set (match_dup 2)
+ (ashift:HI (match_dup 2)
+ (const_int 8)))
+ (clobber (scratch:QI))])
+ (set (match_dup 0)
+ (sign_extend:SI (match_dup 2)))
+ (parallel [(set (match_dup 0)
+ (ashiftrt:SI (match_dup 0)
+ (const_int 1)))
+ (clobber (scratch:QI))])]
+ "operands[2] = gen_rtx_REG (HImode, REGNO (operands[0]));")
;; Storing a part of HImode to QImode.
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