From 6a3b64a24d74b084b77e5f0bbff64b0ea7b70159 Mon Sep 17 00:00:00 2001
From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 23 May 2011 18:03:31 +0000
Subject: [PATCH] 	PR c/49120
 	* c-decl.c (start_decl): Convert expr to void_type_node.

	* gcc.dg/pr49120.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174082 138bc75d-0d04-0410-961f-82ee72b054a4

index 4e82f28..001330c 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -1,6 +1,6 @@
 /* Process declarations and variables for C compiler.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -3948,7 +3948,7 @@ start_decl (struct c_declarator *declarator, struct c_declspecs *declspecs,
     return 0;
 
   if (expr)
-    add_stmt (expr);
+    add_stmt (fold_convert (void_type_node, expr));
 
   if (TREE_CODE (decl) != FUNCTION_DECL && MAIN_NAME_P (DECL_NAME (decl)))
     warning (OPT_Wmain, "%q+D is usually a function", decl);
new file mode 100644
index 0000000..1a65222
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr49120.c
@@ -0,0 +1,11 @@
+/* PR c/49120 */
+/* { dg-do compile } */
+/* { dg-options "-Wall" } */
+
+int
+main ()
+{
+  int a = 1;
+  int c = ({ char b[a + 1]; b[0] = 0; b[0]; });
+  return c;
+}
-- 
1.7.0.4