===================================================================
@@ -2919,6 +2919,9 @@ fold_const_aggregate_ref_1 (tree t, tree
HOST_WIDE_INT offset, size, max_size;
tree tem;
+ if (TREE_THIS_VOLATILE (t))
+ return NULL_TREE;
+
if (TREE_CODE_CLASS (TREE_CODE (t)) == tcc_declaration)
return get_symbol_constant_value (t);
===================================================================
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-optimized" } */
+
+static const unsigned int foo = 1;
+unsigned int test( void )
+{
+ const volatile unsigned int *bar = &foo;
+ return ( *bar );
+}
+
+/* { dg-final { scan-tree-dump-not "return 1" "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */