re PR c++/69078 ([C++14] function local static not initialized when only used in…

re PR c++/69078 ([C++14] function local static not initialized when only used in a generic/variadic lambda)

2017-10-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/69078
	* g++.dg/cpp1y/lambda-generic-69078-1.C: New.
	* g++.dg/cpp1y/lambda-generic-69078-2.C: Likewise.

From-SVN: r253736

gcc/testsuite/ChangeLog

+2017-10-13  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/69078
+	* g++.dg/cpp1y/lambda-generic-69078-1.C: New.
+	* g++.dg/cpp1y/lambda-generic-69078-2.C: Likewise.
+
 2017-10-13  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/82274

gcc/testsuite/g++.dg/cpp1y/lambda-generic-69078-1.C

+// PR c++/69078
+// { dg-do run { target c++14 } }
+// { dg-options "-Wall" }
+
+#include <cassert>
+
+struct Class {
+    Class(void (*_param)()) : data(_param) {}
+    void (*data)();
+};
+
+void funUser(void (*test)(int)) {
+    test(60);
+}
+
+void user(Class& c, int i) {
+    (void)i;
+    assert (c.data);
+}
+
+void probe() {}
+
+int main() {
+    static Class instance = { probe };
+    funUser([](auto... p) {
+        user(instance, p...);
+    });
+}

gcc/testsuite/g++.dg/cpp1y/lambda-generic-69078-2.C

+// PR c++/69078
+// { dg-do run { target c++14 } }
+
+#include <cassert>
+
+template<typename F>
+void run( F &&f ) {
+  f(nullptr);
+}
+
+struct V {
+  int i;
+};
+
+int main() {
+  static V const s={2};
+  assert (s.i == 2);
+  run([](auto){
+      assert (s.i == 2);
+    });
+}