re PR middle-end/52314 (gimplifier produces volatile)

2012-02-21  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52314
	* gimplify.c (create_tmp_from_val): Use the main variant type
	for the type of the temporary we create.

From-SVN: r184436

gcc/ChangeLog

 2012-02-21  Richard Guenther  <rguenther@suse.de>
 
+	PR middle-end/52314
+	* gimplify.c (create_tmp_from_val): Use the main variant type
+	for the type of the temporary we create.
+
+2012-02-21  Richard Guenther  <rguenther@suse.de>
+
 	PR tree-optimization/52324
 	* gimplify.c (gimplify_expr): When re-gimplifying expressions
 	do not gimplify a MEM_REF address operand if it is already

gcc/gimplify.c

@@ -504,7 +504,8 @@ create_tmp_reg (tree type, const char *prefix)
 static inline tree
 create_tmp_from_val (tree val)
 {
-  return create_tmp_var (TREE_TYPE (val), get_name (val));
+  /* Drop all qualifiers and address-space information from the value type.  */
+  return create_tmp_var (TYPE_MAIN_VARIANT (TREE_TYPE (val)), get_name (val));
 }
 
 /* Create a temporary to hold the value of VAL.  If IS_FORMAL, try to reuse