re PR c++/77539 (gcc-5/6: comparison of array to nullptr failure in constexpr…

re PR c++/77539 (gcc-5/6: comparison of array to nullptr failure in constexpr (fixed by r235506 on trunk))

	PR c++/77539
	* g++.dg/cpp1y/pr77539.C: New.

From-SVN: r240138

gcc/testsuite/ChangeLog

+2016-09-14  Nathan Sidwell  <nathan@acm.org>
+
+	PR c++/77539
+	* g++.dg/cpp1y/pr77539.C: New.
+
 2016-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
 
 	* g++.dg/cpp0x/lambda/lambda-mangle.C: Move dg-do directive before

gcc/testsuite/g++.dg/cpp1y/pr77539.C

+// PR c++/77539
+// { dg-do compile { target c++14 } }
+
+constexpr int foobar()
+{
+  int array[100] = {};
+  int *ar = array;
+  if (ar == nullptr) // Error...
+  {
+    return 0;
+  }
+  return 1;
+}
+static_assert(foobar(),"");