integer-pack2.C: Require int32 effective target.

	* g++.dg/ext/integer-pack2.C: Require int32 effective target.
	Don't include limits.h.
	(w): Conditionalize on long long wider than int.  Use
	1LL << (__SIZEOF_INT__ * __CHAR_BIT__) instead of
	-9223372036854775808.
	(x): Use __INT_MAX__ instead of INT_MAX.

From-SVN: r248427

gcc/testsuite/ChangeLog

+2017-05-24  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/ext/integer-pack2.C: Require int32 effective target.
+	Don't include limits.h.
+	(w): Conditionalize on long long wider than int.  Use
+	1LL << (__SIZEOF_INT__ * __CHAR_BIT__) instead of
+	-9223372036854775808.
+	(x): Use __INT_MAX__ instead of INT_MAX.
+
 2017-05-24  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/66094

gcc/testsuite/g++.dg/ext/integer-pack2.C

-// { dg-do compile { target c++11 } }
+// { dg-do compile { target { c++11 && int32 } } }
 // { dg-options -w }
 
-#include <limits.h>
-
 template<typename T, T...> struct integer_sequence { };
 template<typename T, T num>
  using make_integer_sequence = integer_sequence<T, __integer_pack(num)...>; // { dg-error "argument" }
 
-make_integer_sequence<int, -9223372036854775808> w;
-make_integer_sequence<int, INT_MAX> x;	   // { dg-message "required" }
+#if __SIZEOF_LONG_LONG__ > __SIZEOF_INT__
+make_integer_sequence<int, 1LL << (__SIZEOF_INT__ * __CHAR_BIT__)> w;
+#endif
+make_integer_sequence<int, __INT_MAX__> x; // { dg-message "required" }
 make_integer_sequence<int, -2147483650> y; // { dg-message "required" }