From 8c66e45c90175c237c15b91b6fc5b9097f257c08 Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 10 Jun 2011 04:23:26 +0000
Subject: [PATCH] 	* semantics.c (potential_constant_expression_1): Handle destructor
 	call.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174887 138bc75d-0d04-0410-961f-82ee72b054a4

index 5cb8f49..7e62b61 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -7703,6 +7703,12 @@ potential_constant_expression_1 (tree t, bool want_rval, tsubst_flags_t flags)
       want_rval = true;
       goto binary;
 
+    case BIT_NOT_EXPR:
+      /* A destructor.  */
+      if (TYPE_P (TREE_OPERAND (t, 0)))
+	return true;
+      /* else fall through.  */
+
     case REALPART_EXPR:
     case IMAGPART_EXPR:
     case CONJ_EXPR:
@@ -7711,7 +7717,6 @@ potential_constant_expression_1 (tree t, bool want_rval, tsubst_flags_t flags)
     case FLOAT_EXPR:
     case NEGATE_EXPR:
     case ABS_EXPR:
-    case BIT_NOT_EXPR:
     case TRUTH_NOT_EXPR:
     case FIXED_CONVERT_EXPR:
     case UNARY_PLUS_EXPR:
-- 
1.7.0.4