clang/test/SemaCXX/declspec-thread.cpp

   1 // RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -fms-extensions -fms-compatibility-version=18.00 -verify %s
   2 // RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -fms-extensions -fms-compatibility-version=19.00 -verify %s
   3
   4 __thread __declspec(thread) int a; // expected-error {{already has a thread-local storage specifier}}
   5 __declspec(thread) __thread int b; // expected-error {{already has a thread-local storage specifier}}
   6 __declspec(thread) int c(); // expected-warning {{only applies to variables}}
   7 __declspec(thread) int d;
   8 int foo();
   9 #if _MSC_VER >= 1900
  10 __declspec(thread) int e = foo();
  11 #else
  12 __declspec(thread) int e = foo(); // expected-error {{must be a constant expression}} expected-note {{thread_local}}
  13 #endif
  14
  15 struct HasCtor { HasCtor(); int x; };
  16 #if _MSC_VER >= 1900
  17 __declspec(thread) HasCtor f;
  18 #else
  19 __declspec(thread) HasCtor f; // expected-error {{must be a constant expression}} expected-note {{thread_local}}
  20 #endif
  21
  22 struct HasDtor { ~HasDtor(); int x; };
  23 #if _MSC_VER >= 1900
  24 __declspec(thread) HasDtor g;
  25 #else
  26 __declspec(thread) HasCtor g; // expected-error {{must be a constant expression}} expected-note {{thread_local}}
  27 #endif
  28
  29 struct HasDefaultedDefaultCtor {
  30   HasDefaultedDefaultCtor() = default;
  31   int x;
  32 };
  33 __declspec(thread) HasDefaultedDefaultCtor h;
  34
  35 struct HasConstexprCtor {
  36   constexpr HasConstexprCtor(int x) : x(x) {}
  37   int x;
  38 };
  39 __declspec(thread) HasConstexprCtor i(42);
  40
  41 int foo() {
  42   __declspec(thread) int a; // expected-error {{must have global storage}}
  43   static __declspec(thread) int b;
  44 }
  45
  46 extern __declspec(thread) int fwd_thread_var;
  47 __declspec(thread) int fwd_thread_var = 5;
  48
  49 extern int fwd_thread_var_mismatch; // expected-note {{previous declaration}}
  50 __declspec(thread) int fwd_thread_var_mismatch = 5; // expected-error-re {{thread-local {{.*}} follows non-thread-local}}
  51
  52 extern __declspec(thread) int thread_mismatch_2; // expected-note {{previous declaration}}
  53 int thread_mismatch_2 = 5; // expected-error-re {{non-thread-local {{.*}} follows thread-local}}
  54
  55 typedef __declspec(thread) int tls_int_t; // expected-warning {{only applies to variables}}