From 6eae3e637fcc22d21b51d44d61e3a9cb4825e776 Mon Sep 17 00:00:00 2001 From: Jackie Huang Date: Thu, 30 Oct 2014 20:37:14 -0700 Subject: [PATCH]PR rtl-optimization/63348 PR rtl-optimization/63348 * emit-rtl.c (try_split): Do not emit extra barrier. Note: this patch is to fix the side effect introduced by r212171 which was reported at: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63348 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215613 138bc75d-0d04-0410-961f-82ee72b054a4 Upstream-status: Backport [https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=215613] Signed-off-by: Baoshan Pang Signed-off-by: Jackie Huang --- gcc/emit-rtl.c | 11 ----------- 1 files changed, 0 insertions(+), 11 deletions(-) diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 4736f8d..ae69dbd 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -3422,7 +3422,6 @@ try_split (rtx pat, rtx trial, int last) { rtx before = PREV_INSN (trial); rtx after = NEXT_INSN (trial); - int has_barrier = 0; rtx note, seq, tem; int probability; rtx insn_last, insn; @@ -3441,14 +3440,6 @@ try_split (rtx pat, rtx trial, int last) split_branch_probability = -1; - /* If we are splitting a JUMP_INSN, it might be followed by a BARRIER. - We may need to handle this specially. */ - if (after && BARRIER_P (after)) - { - has_barrier = 1; - after = NEXT_INSN (after); - } - if (!seq) return trial; @@ -3594,8 +3585,6 @@ try_split (rtx pat, rtx trial, int last) tem = emit_insn_after_setloc (seq, trial, INSN_LOCATION (trial)); delete_insn (trial); - if (has_barrier) - emit_barrier_after (tem); /* Recursively call try_split for each new insn created; by the time control returns here that insn will be fully split, so -- 1.7.1