re PR c++/77545 (ICE on valid C++11 code: in potential_constant_expression_1, at…

re PR c++/77545 (ICE on valid C++11 code: in potential_constant_expression_1, at cp/constexpr.c:5480)

	PR c++/77545
	PR c++/77284
	* constexpr.c (potential_constant_expression_1): Handle CLEANUP_STMT.

	* g++.dg/cpp0x/range-for32.C: New test.
	* g++.dg/cpp0x/range-for33.C: New test.

From-SVN: r244062

gcc/cp/ChangeLog

+2017-01-04  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/77545
+	PR c++/77284
+	* constexpr.c (potential_constant_expression_1): Handle CLEANUP_STMT.
+
 2017-01-04  Nathan Sidwell  <nathan@acm.org>
 
 	PR c++/66735

gcc/cp/constexpr.c

@@ -5661,6 +5661,7 @@ potential_constant_expression_1 (tree t, bool want_rval, bool strict,
       /* We can see these in statement-expressions.  */
       return true;
 
+    case CLEANUP_STMT:
     case EMPTY_CLASS_EXPR:
       return false;
 

gcc/testsuite/ChangeLog

+2017-01-04  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/77545
+	PR c++/77284
+	* g++.dg/cpp0x/range-for32.C: New test.
+	* g++.dg/cpp0x/range-for33.C: New test.
+
 2017-01-04  David Malcolm  <dmalcolm@redhat.com>
 
 	* gcc.dg/Wmissing-braces-fixits.c: New test case.

gcc/testsuite/g++.dg/cpp0x/range-for32.C

+// PR c++/77545
+// { dg-do compile { target c++11 } }
+// { dg-options "-Wno-pedantic" }
+
+template < typename T > struct A
+{
+  A ();
+  ~A ();
+  T t;
+};
+
+void f (A < int > a)
+{
+  for (auto x : (A<int>[]) { a })
+    ;
+}

gcc/testsuite/g++.dg/cpp0x/range-for33.C

+// PR c++/77284
+// { dg-do compile { target c++11 } }
+
+#include <initializer_list>
+
+struct A
+{
+  ~A () {}
+};
+
+void foo (A & v)
+{
+  for (A a : { v }) {};
+}