From 8fc9a7ba7b2f94550dcc912b917d7429ea1f081f Mon Sep 17 00:00:00 2001 From: Kazu Hirata Date: Wed, 2 Apr 2003 21:43:35 +0000 Subject: [PATCH] * config/h8300/h8300.md (a peephole2): Tighten the condition. From-SVN: r65174 --- gcc/ChangeLog | 4 ++++ gcc/config/h8300/h8300.md | 14 +++++++++++--- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d7f2b9556f8..bfbcc946dec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-04-02 Kazu Hirata + + * config/h8300/h8300.md (a peephole2): Tighten the condition. + 2003-04-02 Richard Henderson * longlong.h (umul_ppmm) [alpha]: Use __builtin_alpha_umulh. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 4b545431b45..a4c76f97ba7 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -4308,7 +4308,16 @@ gen_rtx_EQ (VOIDmode, cc0_rtx, const0_rtx)); operands[5] = GEN_INT (exact_log2 (INTVAL (operands[1]) + 1));") -;; Transform A <= 1 to (A & 0xfffffffe) == 0. +;; Transform +;; +;; cmp.l #15,er0 +;; bhi .L1 +;; +;; into +;; +;; and #240,r0l +;; mov.l er0,er0 +;; bne .L1 (define_peephole2 [(set (cc0) @@ -4321,8 +4330,7 @@ (pc)))] "(TARGET_H8300H || TARGET_H8300S) && peep2_reg_dead_p (1, operands[0]) - && (INTVAL (operands[1]) == 1 - || INTVAL (operands[1]) == 3 + && ((TARGET_H8300H && INTVAL (operands[1]) == 3) || INTVAL (operands[1]) == 7 || INTVAL (operands[1]) == 15 || INTVAL (operands[1]) == 31 -- 2.30.2