From 0135f3437aa4971252377aaaf7b86e8fdc3b8ecd Mon Sep 17 00:00:00 2001 From: Kazu Hirata Date: Thu, 6 Mar 2003 15:14:37 +0000 Subject: [PATCH] * config/h8300/h8300.md (a new peephole2): New. From-SVN: r63892 --- gcc/ChangeLog | 4 ++++ gcc/config/h8300/h8300.md | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6a565690cd6..d6264c19504 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-03-06 Kazu Hirata + + * config/h8300/h8300.md (a new peephole2): New. + Thu Mar 6 14:20:15 CET 2003 Jan Hubicka * cgraph.c (cgraph_node): Do not confuse nested functions and methods. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index ed154b7d79a..518c98c02f6 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -3584,6 +3584,25 @@ "operands[2] = gen_lowpart (QImode, operands[0]); operands[3] = gen_lowpart (QImode, operands[1]);") +(define_peephole2 + [(set (match_operand:SI 0 "register_operand" "") + (match_operand:SI 1 "memory_operand" "")) + (set (match_dup 0) + (and:SI (match_dup 0) + (match_operand:SI 2 "const_int_operand" "")))] + "(TARGET_H8300H || TARGET_H8300S) + && !reg_overlap_mentioned_p (operands[0], operands[1]) + && !(GET_CODE (operands[1]) == MEM && MEM_VOLATILE_P (operands[1])) + && (INTVAL (operands[2]) & ~0xffff) == 0 + && INTVAL (operands[2]) != 255" + [(set (match_dup 3) + (match_dup 4)) + (set (match_dup 0) + (and:SI (match_dup 0) + (match_dup 2)))] + "operands[3] = gen_lowpart (HImode, operands[0]); + operands[4] = gen_lowpart (HImode, operands[1]);") + ;; (compare (reg:SI) (const_int)) takes 6 bytes, so we try to achieve ;; the equivalent with shorter sequences. Here is the summary. Cases ;; are grouped for each define_peephole2. -- 2.30.2