1 files changed, 97 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/warn-global-constructors.cpp b/clang/test/SemaCXX/warn-global-constructors.cpp
new file mode 100644
index 0000000..6330958
--- /dev/null
+++ b/clang/test/SemaCXX/warn-global-constructors.cpp
@@ -0,0 +1,97 @@
+// RUN: %clang_cc1 -fsyntax-only -Wglobal-constructors %s -verify
+
+int opaque_int();
+
+namespace test0 {
+  // These should never require global constructors.
+  int a;
+  int b = 20;
+  float c = 5.0f;
+
+  // This global constructor is avoidable based on initialization order.
+  int d = b; // expected-warning {{global constructor}}
+
+  // These global constructors are unavoidable.
+  int e = opaque_int(); // expected-warning {{global constructor}}
+  int f = b; // expected-warning {{global constructor}}
+}
+
+namespace test1 {
+  struct A { int x; };
+  A a;
+  A b = A();
+  A c = { 10 };
+  A d = { opaque_int() }; // expected-warning {{global constructor}}
+  A e = A(A());
+  A f = A(a); // expected-warning {{global constructor}}
+  A g(a); // expected-warning {{global constructor}}
+  A h((A()));  // elided
+  A i((A(A()))); // elided
+}
+
+namespace test2 {
+  struct A { A(); };
+  A a; // expected-warning {{global constructor}}
+  A b[10]; // expected-warning {{global constructor}}
+  A c[10][10]; // expected-warning {{global constructor}}
+
+  A &d = a;
+  A &e = b[5];
+  A &f = c[5][7];
+}
+
+namespace test3 {
+  struct A { ~A(); };
+  A a; // expected-warning {{global destructor}}
+  A b[10]; // expected-warning {{global destructor}}
+  A c[10][10]; // expected-warning {{global destructor}}
+
+  A &d = a;
+  A &e = b[5];
+  A &f = c[5][7];
+}
+
+namespace test4 {
+  char a[] = "hello";
+  char b[6] = "hello";
+  char c[][6] = { "hello" };
+}
+
+namespace test5 {
+  struct A { A(); };
+
+  void f1() {
+    static A a;
+  }
+  void f2() {
+    static A& a = *new A;
+  }
+}
+
+namespace test6 {
+  struct A { ~A(); };
+
+  void f1() {
+    static A a;
+  }
+  void f2() {
+    static A& a = *new A;
+  }
+}
+
+namespace pr8095 {
+  struct Foo {
+    int x;
+    Foo(int x1) : x(x1) {}
+  };
+  void foo() {
+    static Foo a(0);
+  }
+
+  struct Bar {
+    ~Bar();
+  };
+  void bar() {
+    static Bar b;
+  }
+}