diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 34c1546b6834..f290583a0de2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	* tree-vrp.c (compare_names): Initialize sop.
+
 2007-05-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/31769
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index f131bdedd150..10a2b38eb973 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -4169,7 +4169,7 @@ compare_names (enum tree_code comp, tree n1, tree n2,
       t = retval = NULL_TREE;
       EXECUTE_IF_SET_IN_BITMAP (e2, 0, i2, bi2)
 	{
-	  bool sop;
+	  bool sop = false;
 
 	  value_range_t vr2 = *(vr_value[i2]);