clang/test/SemaCXX/coroutine-builtins.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -fcoroutines-ts %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++20 %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify -DERRORS %s
   4
   5 // Check that we don't crash when using __builtin_coro_* without the fcoroutine-ts or -std=c++20 option
   6
   7 #ifdef ERRORS
   8 // expected-error@#A{{use of undeclared identifier '__builtin_coro_done'}}
   9 // expected-error@#B{{use of undeclared identifier '__builtin_coro_id'}}
  10 // expected-error@#C{{use of undeclared identifier '__builtin_coro_alloc'}}
  11 #else
  12 // expected-no-diagnostics
  13 #endif
  14
  15 int main() {
  16   void *co_h;
  17   bool d = __builtin_coro_done(co_h); // #A
  18   __builtin_coro_id(32, 0, 0, 0);     // #B
  19   __builtin_coro_alloc();             // #C
  20 }