re PR c++/56991 (constexpr std::initializer_list rejects too complex initialization)

2014-08-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/56991
	* g++.dg/cpp0x/constexpr-56991.C: New.

From-SVN: r214729

gcc/testsuite/ChangeLog

 2014-08-29  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/56991
+	* g++.dg/cpp0x/constexpr-56991.C: New.
+
+2014-08-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/57764
 	* g++.dg/cpp0x/constexpr-57764.C: New.
 

gcc/testsuite/g++.dg/cpp0x/constexpr-56991.C

+// PR c++/56991
+// { dg-do compile { target c++11 } }
+
+#include <initializer_list>
+
+constexpr std::initializer_list<int> good1 = { 1, 2, 3 };
+struct foo { int a, b; };
+constexpr foo good2 = { 1, 2 };
+
+constexpr std::initializer_list<foo> bad1 = { { 1, 2 }, { 3, 4} };
+constexpr std::initializer_list<foo> bad2 = { good2, good2 };