From: Alan Modra <amodra@gmail.com>
Date: Mon, 7 Nov 2011 01:16:01 +0000 (+1030)
Subject: re PR target/30282 (Optimization flag -O1 -fschedule-insns2 cause red zone to be... 
X-Git-Tag: releases/gcc-4.4.7~182
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbf41d26563e995e9778b906e54f33f850f63816;p=thirdparty%2Fgcc.git

re PR target/30282 (Optimization flag -O1 -fschedule-insns2 cause red zone to be used when there is none)

	PR target/30282
	* config/rs6000/rs6000.c (rs6000_emit_stack_reset): Always emit
	blockage for ABI_V4.

From-SVN: r181059
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 10200c204693..9dc88813e296 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-11-07  Alan Modra  <amodra@gmail.com>
+
+	PR target/30282
+	* config/rs6000/rs6000.c (rs6000_emit_stack_reset): Always emit
+	blockage for ABI_V4.
+
 2011-10-29  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	PR target/50691
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 63f8ef91c4e5..28a209ba7a08 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -15943,7 +15943,7 @@ rs6000_emit_stack_reset (rs6000_stack_t *info,
 {
   /* This blockage is needed so that sched doesn't decide to move
      the sp change before the register restores.  */
-  if (frame_reg_rtx != sp_reg_rtx
+  if (DEFAULT_ABI == ABI_V4
       || (TARGET_SPE_ABI
 	  && info->spe_64bit_regs_used != 0
 	  && info->first_gp_reg_save != 32))