re PR tree-optimization/29753 (Volatile semantics ignored in some cases)

2006-11-15  Paolo Bonzini  <bonzini@gnu.org>

	PR middle-end/29753
	* gimplify.c (fold_indirect_ref_rhs): Use
	STRIP_USELESS_TYPE_CONVERSION rather than STRIP_NOPS.

From-SVN: r118845

gcc/ChangeLog

+2006-11-15  Paolo Bonzini  <bonzini@gnu.org>
+
+	PR middle-end/29753
+	* gimplify.c (fold_indirect_ref_rhs): Use
+	STRIP_USELESS_TYPE_CONVERSION rather than STRIP_NOPS.
+
 2006-11-14  Richard Earnshaw  <rearnsha@arm.com>
 
 	* expmed.c (emit_store_flag_1): New function.

gcc/gimplify.c

@@ -3212,7 +3212,7 @@ fold_indirect_ref_rhs (tree t)
   tree sub = t;
   tree subtype;
 
-  STRIP_NOPS (sub);
+  STRIP_USELESS_TYPE_CONVERSION (sub);
   subtype = TREE_TYPE (sub);
   if (!POINTER_TYPE_P (subtype))
     return NULL_TREE;