From 0a64eecaf4c81c3a22d49573965d8bf48e556a40 Mon Sep 17 00:00:00 2001 From: Michael Matz Date: Thu, 4 Oct 2007 13:34:09 +0000 Subject: [PATCH] re PR rtl-optimization/33653 (volatile memory access optimized away) PR rtl-optimization/33653 * dce.c (deletable_insn_p_1): Use volatile_refs_p(). * dse.c (scan_insn): Same. From-SVN: r129006 --- gcc/ChangeLog | 6 ++++++ gcc/dce.c | 2 +- gcc/dse.c | 2 +- 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 30699de9eec..455ad65ab8e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-10-04 Michael Matz + + PR rtl-optimization/33653 + * dce.c (deletable_insn_p_1): Use volatile_refs_p(). + * dse.c (scan_insn): Same. + 2007-10-04 Kazu Hirata * config.gcc: Remove USE_GAS for m68k targets. diff --git a/gcc/dce.c b/gcc/dce.c index aca73110495..b892d84f89d 100644 --- a/gcc/dce.c +++ b/gcc/dce.c @@ -78,7 +78,7 @@ deletable_insn_p_1 (rtx body) return false; default: - if (volatile_insn_p (body)) + if (volatile_refs_p (body)) return false; if (flag_non_call_exceptions && may_trap_p (body)) diff --git a/gcc/dse.c b/gcc/dse.c index 7bf759d45fc..d031c49a4f0 100644 --- a/gcc/dse.c +++ b/gcc/dse.c @@ -1997,7 +1997,7 @@ scan_insn (bb_info_t bb_info, rtx insn) /* Assuming that there are sets in these insns, we cannot delete them. */ if ((GET_CODE (PATTERN (insn)) == CLOBBER) - || volatile_insn_p (PATTERN (insn)) + || volatile_refs_p (PATTERN (insn)) || (flag_non_call_exceptions && may_trap_p (PATTERN (insn))) || (RTX_FRAME_RELATED_P (insn)) || find_reg_note (insn, REG_FRAME_RELATED_EXPR, NULL_RTX)) -- 2.30.2