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

From-SVN: r174700

* cprop.c (local_cprop_pass): Don't set changed for debug insns.
From-SVN: r174700
3598cabd · Alexandre Oliva · Alexandre Oliva · a7a110bb · 3598cabd · 3598cabd
Commit 3598cabd authored Jun 06, 2011 by Alexandre Oliva Committed by Alexandre Oliva Jun 06, 2011
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gcc/ChangeLog
+4 -0

gcc/cprop.c
+2 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 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.
 	(delete_unmarked_insns): Skip debug insns.
 	(prescan_insns_for_dce): Likewise.

--- 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;
 			}
 		    }