clang/test/SemaCXX/coroutine-builtins.cpp

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