From: Uros Bizjak <uros@gcc.gnu.org>
Date: Wed, 31 Dec 2008 15:36:44 +0000 (+0100)
Subject: sched-deps.c (sched_analyze_2): Flush pending memory loads and stores.
X-Git-Tag: releases/gcc-4.4.0~1086
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a11fe69921144efb1f1cbe5268ec3232b85ea869;p=thirdparty%2Fgcc.git

sched-deps.c (sched_analyze_2): Flush pending memory loads and stores.

	* sched-deps.c (sched_analyze_2) [UNSPEC_VOLATILE]: Flush pending
	memory loads and stores.

From-SVN: r142983
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ab6a187530ca..bbf1a83cd29a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-12-31  Uros Bizjak  <ubizjak@gmail.com>
+
+	* sched-deps.c (sched_analyze_2) [UNSPEC_VOLATILE]: Flush pending
+	memory loads and stores.
+
 2008-12-31  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/38505
@@ -60,7 +65,7 @@
 	* fold-const.c (fold_comparison): Use the correct result type.
 
 2008-12-30  Dorit Nuzman  <dorit@il.ibm.com>
-            Ira Rosen  <irar@il.ibm.com>
+	    Ira Rosen  <irar@il.ibm.com>
 
 	PR tree-optimization/38529
 	* tree-vect-transform (vect_transform_stmt): Handle inner-loop stmts
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index 81fcb8062280..bff83a2b8444 100644
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -2132,9 +2132,12 @@ sched_analyze_2 (struct deps *deps, rtx x, rtx insn)
       flush_pending_lists (deps, insn, true, false);
       break;
 
+    case UNSPEC_VOLATILE:
+      flush_pending_lists (deps, insn, true, true);
+      /* FALLTHRU */
+
     case ASM_OPERANDS:
     case ASM_INPUT:
-    case UNSPEC_VOLATILE:
       {
 	/* Traditional and volatile asm instructions must be considered to use
 	   and clobber all hard registers, all pseudo-registers and all of