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From 556537c4ad0df4cbebb74197bb2bdea75cf5dd35 Mon Sep 17 00:00:00 2001
From: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 17 Jul 2014 07:48:49 +0000
Subject: [PATCH] 2014-07-17 Richard Biener <rguenther@suse.de>
PR rtl-optimization/61801
* sched-deps.c (sched_analyze_2): For ASM_OPERANDS and
ASM_INPUT don't set reg_pending_barrier if it appears in a
debug-insn.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_9-branch@212739 138bc75d-0d04-0410-961f-82ee72b054a4
Upstream-Status: Backport [https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801]
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
---
gcc/sched-deps.c | 3 ++-
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index efc4223..df29bd3 100644
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -2750,7 +2750,8 @@ sched_analyze_2 (struct deps_desc *deps, rtx x, rtx insn)
Consider for instance a volatile asm that changes the fpu rounding
mode. An insn should not be moved across this even if it only uses
pseudo-regs because it might give an incorrectly rounded result. */
- if (code != ASM_OPERANDS || MEM_VOLATILE_P (x))
+ if ((code != ASM_OPERANDS || MEM_VOLATILE_P (x))
+ && !DEBUG_INSN_P (insn))
reg_pending_barrier = TRUE_BARRIER;
/* For all ASM_OPERANDS, we must traverse the vector of input operands.
--
1.8.5.5
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