re PR tree-optimization/80344 (-Wuninitialized triggering on a ctor on ARM)

2017-04-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/80344
	* gimplify.c (is_gimple_mem_rhs_or_call): Allow CLOBBERs.

From-SVN: r246800

gcc/ChangeLog

+2017-04-10  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/80344
+	* gimplify.c (is_gimple_mem_rhs_or_call): Allow CLOBBERs.
+ 
 2017-04-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/80324

gcc/gimplify.c

@@ -493,7 +493,9 @@ is_gimple_mem_rhs_or_call (tree t)
   if (is_gimple_reg_type (TREE_TYPE (t)))
     return is_gimple_val (t);
   else
-    return (is_gimple_val (t) || is_gimple_lvalue (t)
+    return (is_gimple_val (t)
+	    || is_gimple_lvalue (t)
+	    || TREE_CLOBBER_P (t)
 	    || TREE_CODE (t) == CALL_EXPR);
 }