clang/test/CodeGenCoroutines/coro-attributes.cpp

   1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 -disable-llvm-passes -emit-llvm %s -o - | FileCheck %s
   2 #include "Inputs/coroutine.h"
   3
   4 using namespace std;
   5
   6 struct coro {
   7   struct promise_type {
   8     coro get_return_object();
   9     suspend_never initial_suspend();
  10     suspend_never final_suspend() noexcept;
  11     void return_void();
  12     static void unhandled_exception();
  13   };
  14 };
  15
  16 // CHECK: void @_Z3foov() #[[FOO_ATTR_NUM:[0-9]+]]
  17 // CHECK: declare token @llvm.coro.save(ptr) #[[SAVE_ATTR_NUM:[0-9]+]]
  18 // CHECK: attributes #[[FOO_ATTR_NUM]] = { {{.*}} presplitcoroutine
  19 // CHECK: attributes #[[SAVE_ATTR_NUM]] = { {{.*}}nomerge
  20 coro foo() {
  21   co_await suspend_always{};
  22 }