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[patch] h8300.md: Add new patterns.
- From: Kazu Hirata <kazu at cs dot umass dot edu>
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 04 Dec 2002 16:02:09 -0500 (EST)
- Subject: [patch] h8300.md: Add new patterns.
Hi,
Attached is a patch to add new patterns for the combiner to exploit.
Tested on h8300 port. Committed.
Kazu Hirata
2002-12-04 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (*extzv_8_8): New.
(*extzv_8_16): Likewise.
Index: h8300.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/h8300/h8300.md,v
retrieving revision 1.115
diff -u -r1.115 h8300.md
--- h8300.md 2 Dec 2002 14:24:11 -0000 1.115
+++ h8300.md 4 Dec 2002 20:51:52 -0000
@@ -2231,6 +2231,26 @@
;; COMBINE PATTERNS
;; -----------------------------------------------------------------
+(define_insn "*extzv_8_8"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
+ (const_int 8)
+ (const_int 8)))]
+ "TARGET_H8300H || TARGET_H8300S"
+ "mov.b\\t%x1,%w0\;extu.w\\t%f0\;extu.l\\t%S0"
+ [(set_attr "cc" "set_znv")
+ (set_attr "length" "6")])
+
+(define_insn "*extzv_8_16"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
+ (const_int 8)
+ (const_int 16)))]
+ "TARGET_H8300H || TARGET_H8300S"
+ "mov.w\\t%e1,%f0\;extu.w\\t%f0\;extu.l\\t%S0"
+ [(set_attr "cc" "set_znv")
+ (set_attr "length" "6")])
+
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(ior:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "r"))