1 files changed, 42 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/declspec-thread.cpp b/clang/test/SemaCXX/declspec-thread.cpp
new file mode 100644
index 00000000000..954f943d973
--- /dev/null
+++ b/clang/test/SemaCXX/declspec-thread.cpp
@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -std=c++11 -fms-extensions -verify %s
+
+__thread __declspec(thread) int a; // expected-error {{already has a thread-local storage specifier}}
+__declspec(thread) __thread int b; // expected-error {{already has a thread-local storage specifier}}
+__declspec(thread) int c(); // expected-warning {{only applies to variables}}
+__declspec(thread) int d;
+int foo();
+__declspec(thread) int e = foo(); // expected-error {{must be a constant expression}} expected-note {{thread_local}}
+
+struct HasCtor { HasCtor(); int x; };
+__declspec(thread) HasCtor f; // expected-error {{must be a constant expression}} expected-note {{thread_local}}
+
+struct HasDtor { ~HasDtor(); int x; };
+__declspec(thread) HasDtor g; // expected-error {{non-trivial destruction}} expected-note {{thread_local}}
+
+struct HasDefaultedDefaultCtor {
+  HasDefaultedDefaultCtor() = default;
+  int x;
+};
+__declspec(thread) HasDefaultedDefaultCtor h;
+
+struct HasConstexprCtor {
+  constexpr HasConstexprCtor(int x) : x(x) {}
+  int x;
+};
+__declspec(thread) HasConstexprCtor i(42);
+
+int foo() {
+  __declspec(thread) int a; // expected-error {{must have global storage}}
+  static __declspec(thread) int b;
+}
+
+extern __declspec(thread) int fwd_thread_var;
+__declspec(thread) int fwd_thread_var = 5;
+
+extern int fwd_thread_var_mismatch; // expected-note {{previous declaration}}
+__declspec(thread) int fwd_thread_var_mismatch = 5; // expected-error-re {{thread-local {{.*}} follows non-thread-local}}
+
+extern __declspec(thread) int thread_mismatch_2; // expected-note {{previous declaration}}
+int thread_mismatch_2 = 5; // expected-error-re {{non-thread-local {{.*}} follows thread-local}}
+
+typedef __declspec(thread) int tls_int_t; // expected-warning {{only applies to variables}}