clang/test/CodeGenCoroutines/coro-dealloc.cpp

   1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 \
   2 // RUN:   -emit-llvm %s -o - -disable-llvm-passes \
   3 // RUN:   | FileCheck %s
   4
   5 #include "Inputs/coroutine.h"
   6
   7 namespace std {
   8     typedef __SIZE_TYPE__ size_t;
   9     enum class align_val_t : size_t {};
  10 }
  11
  12 struct task {
  13   struct promise_type {
  14     auto initial_suspend() { return std::suspend_always{}; }
  15     auto final_suspend() noexcept { return std::suspend_always{}; }
  16     auto get_return_object() { return task{}; }
  17     void unhandled_exception() {}
  18     void return_value(int) {}
  19   };
  20 };
  21
  22 // Test the compiler will chose sized deallocation correctly.
  23 void operator delete(void *ptr, std::size_t size) noexcept;
  24
  25 // CHECK: define{{.*}}@_Z1fv
  26 // CHECK: %[[coro_free:.+]] = call{{.*}}@llvm.coro.free
  27 // CHECK: coro.free:
  28 // CHECK: %[[coro_size:.+]] = call{{.*}}@llvm.coro.size
  29 // CHECK: call{{.*}}void @_ZdlPvm(ptr{{.*}}%[[coro_free]], i64{{.*}}%[[coro_size]])
  30
  31 task f() {
  32   co_return 43;
  33 }