From: Alexandre Oliva <aoliva@redhat.com>
Date: Mon, 6 Jun 2011 13:40:09 +0000 (+0000)
Subject: * cprop.c (local_cprop_pass): Don't set changed for debug insns.
X-Git-Tag: releases/gcc-4.7.0~6207
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3598cabdae52826b408cc2fdff9982bc2633c730;p=thirdparty%2Fgcc.git

* cprop.c (local_cprop_pass): Don't set changed for debug insns.

From-SVN: r174700
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c45fe7211b3a..a06eb75fc0f5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2011-06-06  Alexandre Oliva  <aoliva@redhat.com>
+
+	* cprop.c (local_cprop_pass): Don't set changed for debug insns.
+
 2011-06-06  Alexandre Oliva  <aoliva@redhat.com>
 
 	* dce.c (reset_unmarked_insns_debug_uses): New.
diff --git a/gcc/cprop.c b/gcc/cprop.c
index 24f4a84d561f..b7b17b19387f 100644
--- a/gcc/cprop.c
+++ b/gcc/cprop.c
@@ -1223,7 +1223,8 @@ local_cprop_pass (void)
 		    {
 		      if (do_local_cprop (reg_use_table[i], insn))
 			{
-			  changed = true;
+			  if (!DEBUG_INSN_P (insn))
+			    changed = true;
 			  break;
 			}
 		    }