1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGenCXX/ms-thread_local.cpp b/test/CodeGenCXX/ms-thread_local.cpp
new file mode 100644
index 0000000..c29473f
--- /dev/null
+++ b/test/CodeGenCXX/ms-thread_local.cpp
@@ -0,0 +1,28 @@
+// RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -emit-llvm -o - | FileCheck %s
+
+struct A {
+  A();
+  ~A();
+};
+
+// CHECK-DAG: $"\01??$a@X@@3UA@@A" = comdat any
+// CHECK-DAG: @"\01??$a@X@@3UA@@A" = linkonce_odr thread_local global %struct.A zeroinitializer, comdat, align 1
+// CHECK-DAG: @"\01??__E?$a@X@@YAXXZ$initializer$" = internal constant void ()* @"\01??__E?$a@X@@YAXXZ", section ".CRT$XDU", comdat($"\01??$a@X@@3UA@@A")
+template <typename T>
+thread_local A a = A();
+
+// CHECK-DAG: @"\01?b@@3UA@@A" = thread_local global %struct.A zeroinitializer, align 1
+// CHECK-DAG: @"__tls_init$initializer$" = internal constant void ()* @__tls_init, section ".CRT$XDU"
+thread_local A b;
+
+// CHECK-LABEL: define internal void @__tls_init()
+// CHECK: call void @"\01??__Eb@@YAXXZ"
+
+thread_local A &c = b;
+thread_local A &d = c;
+
+A f() {
+  (void)a<void>;
+  (void)b;
+  return c;
+}