re PR c++/58609 ([c++11] ICE with uninitialized variable in constexpr)

/cp
2014-03-07  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58609
	* decl.c (check_initializer): Return NULL_TREE after error;
	consistently use inform.

/testsuite
2014-03-07  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58609
	* g++.dg/cpp0x/constexpr-ice12.C: New.

From-SVN: r208410

gcc/cp/ChangeLog

 2014-03-07  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/58609
+	* decl.c (check_initializer): Return NULL_TREE after error;
+	consistently use inform.
+
+2014-03-07  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	* decl.c (check_initializer): Remove dead code.
 
 2014-03-06  Marek Polacek  <polacek@redhat.com>

gcc/cp/decl.c

@@ -5809,9 +5809,11 @@ check_initializer (tree decl, tree init, int flags, vec<tree, va_gc> **cleanups)
 	       "member %qD", decl);
       if (!explained)
 	{
-	  error ("(an out of class initialization is required)");
+	  inform (input_location,
+		  "(an out of class initialization is required)");
 	  explained = 1;
 	}
+      return NULL_TREE;
     }
 
   return init_code;

gcc/testsuite/ChangeLog

+2014-03-07  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/58609
+	* g++.dg/cpp0x/constexpr-ice12.C: New.
+
 2014-03-07  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* c-c++-common/gomp/map-1.c: Extend.

gcc/testsuite/g++.dg/cpp0x/constexpr-ice12.C

+// PR c++/58609
+// { dg-do compile { target c++11 } }
+
+struct A
+{
+  static constexpr int&& i = 0;  // { dg-error "initialization" }
+};
+
+int j = A::i;