diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 69b05cc1098..56397af2104 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-08-28  Mikael Pettersson  <mikpe@it.uu.se>
+
+	PR bootstrap/50218
+	* tree-ssa-loop-ivopts.c (determine_use_iv_cost_condition): Initialize
+	comp.
+
 2011-08-27  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* doc/rtl.texi (simple_return): Document.
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c
index f170859fde4..67d04647c8b 100644
--- a/gcc/tree-ssa-loop-ivopts.c
+++ b/gcc/tree-ssa-loop-ivopts.c
@@ -4757,7 +4757,7 @@ determine_use_iv_cost_condition (struct ivopts_data *data,
   bool ok;
   int elim_inv_expr_id = -1, express_inv_expr_id = -1, inv_expr_id;
   tree *control_var, *bound_cst;
-  enum tree_code comp;
+  enum tree_code comp = ERROR_MARK;
 
   /* Only consider real candidates.  */
   if (!cand->iv)