Handle noexcept on transactions with -fno-exceptions

2013-09-08  Tom de Vries  <tom@codesourcery.com>

	PR c++/58282
	* except.c (build_must_not_throw_expr): Handle
	flag_exceptions.

From-SVN: r202359

gcc/ChangeLog

+2013-09-08  Tom de Vries  <tom@codesourcery.com>
+
+	PR c++/58282
+	* except.c (build_must_not_throw_expr): Handle
+	flag_exceptions.
+
 2013-09-06  Jan Hubicka  <jh@suse.cz>
 
 	* cgraphunit.c (expand_thunk): Get body before touching arguments.

gcc/cp/except.c

@@ -374,6 +374,9 @@ build_must_not_throw_expr (tree body, tree cond)
 {
   tree type = body ? TREE_TYPE (body) : void_type_node;
 
+  if (!flag_exceptions)
+    return body;
+
   if (cond && !value_dependent_expression_p (cond))
     {
       cond = cxx_constant_value (cond);