From b980d72537787b28f5729be5251c51ac35eaca78 Mon Sep 17 00:00:00 2001 From: Kazu Hirata Date: Mon, 24 Mar 2003 14:17:49 +0000 Subject: [PATCH] * config/h8300/h8300.md (a peephole2): New. From-SVN: r64802 --- gcc/ChangeLog | 4 ++++ gcc/config/h8300/h8300.md | 15 +++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d079df8..e560e07 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-03-24 Kazu Hirata + + * config/h8300/h8300.md (a peephole2): New. + 2003-03-24 Jakub Jelinek * dojump.c (do_jump): Handle UNSAVE_EXPR specially. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 883fa5c..43bca10 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -3776,6 +3776,21 @@ : gen_rtx_LT (VOIDmode, cc0_rtx, const0_rtx));") (define_peephole2 + [(set (match_operand:QI 0 "register_operand" "") + (match_operand:QI 1 "general_operand" "")) + (set (match_operand:SI 2 "register_operand" "") + (and:SI (match_dup 2) + (const_int 255)))] + "(TARGET_H8300H || TARGET_H8300S) + && !reg_overlap_mentioned_p (operands[2], operands[1]) + && REGNO (operands[0]) == REGNO (operands[2])" + [(set (match_dup 2) + (const_int 0)) + (set (strict_low_part (match_dup 0)) + (match_dup 1))] + "") + +(define_peephole2 [(set (match_operand:SI 0 "register_operand" "") (match_operand:SI 1 "general_operand" "")) (set (match_dup 0) -- 2.7.4