re PR c++/71821 (ICE on invalid C++11 code (incorrect argument for alignas):…

re PR c++/71821 (ICE on invalid C++11 code (incorrect argument for alignas): unexpected expression ‘f<int>’ of kind template_id_expr)

2017-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71821
	* g++.dg/cpp0x/alignas12.C: New.

From-SVN: r253828

gcc/testsuite/ChangeLog

 2017-10-17  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/71821
+	* g++.dg/cpp0x/alignas12.C: New.
+
+2017-10-17  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/71368
 	* g++.dg/concepts/pr71368.C: New.
 

gcc/testsuite/g++.dg/cpp0x/alignas12.C

+// PR c++/71821
+// { dg-do compile { target c++11 } }
+
+template < typename > constexpr int f () {  return 4; }
+
+alignas (f < int >) char c;  // { dg-error "non-integral type" }