2008-05-23 Richard Guenther <rguenther@suse.de>

	* tree-ssa-operands.c (mark_difference_for_renaming): Use
	bitmap_xor.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@135799 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 6 insertions, 7 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 48e9ae28e5c..eace21cf9b1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-05-23  Richard Guenther  <rguenther@suse.de>
+
+	* tree-ssa-operands.c (mark_difference_for_renaming): Use
+	bitmap_xor.
+
 2008-05-23  Uros Bizjak  <ubizjak@gmail.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 
diff --git a/gcc/tree-ssa-operands.c b/gcc/tree-ssa-operands.c
index a0d7dac17df..cdbc442a0ee 100644
--- a/gcc/tree-ssa-operands.c
+++ b/gcc/tree-ssa-operands.c
@@ -2785,15 +2785,9 @@ mark_difference_for_renaming (bitmap s1, bitmap s2)
   else if (!bitmap_equal_p (s1, s2))
     {
       bitmap t1 = BITMAP_ALLOC (NULL);
-      bitmap t2 = BITMAP_ALLOC (NULL);
-
-      bitmap_and_compl (t1, s1, s2);
-      bitmap_and_compl (t2, s2, s1);
-      bitmap_ior_into (t1, t2);
+      bitmap_xor (t1, s1, s2);
       mark_set_for_renaming (t1);
-
       BITMAP_FREE (t1);
-      BITMAP_FREE (t2);
     }
 }