mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 21:56:04 +00:00
ec117158a3
Now in libcxx and clang, all the coroutine components are defined in std::experimental namespace. And now the coroutine TS is merged into C++20. So in the working draft like N4892, we could find the coroutine components is defined in std namespace instead of std::experimental namespace. And the coroutine support in clang seems to be relatively stable. So I think it may be suitable to move the coroutine component into the experiment namespace now. This patch would make clang lookup coroutine_traits in std namespace first. For the compatibility consideration, clang would lookup in std::experimental namespace if it can't find definitions in std namespace. So the existing codes wouldn't be break after update compiler. And in case the compiler found std::coroutine_traits and std::experimental::coroutine_traits at the same time, it would emit an error for it. The support for looking up std::experimental::coroutine_traits would be removed in Clang16. Reviewed By: lxfind, Quuxplusone Differential Revision: https://reviews.llvm.org/D108696
38 lines
878 B
C++
38 lines
878 B
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 -emit-llvm %s -o - | FileCheck %s
|
|
#include "Inputs/coroutine.h"
|
|
|
|
using namespace std;
|
|
|
|
struct coro {
|
|
struct promise_type {
|
|
coro get_return_object();
|
|
suspend_never initial_suspend();
|
|
suspend_never final_suspend() noexcept;
|
|
void return_void();
|
|
static void unhandled_exception();
|
|
};
|
|
};
|
|
|
|
struct A {
|
|
~A();
|
|
bool await_ready();
|
|
int await_resume() { return 8; }
|
|
template <typename F> void await_suspend(F);
|
|
};
|
|
|
|
extern "C" void consume(int);
|
|
|
|
// Verifies that domination is properly built during cleanup.
|
|
// Without CGCleanup.cpp fix verifier was reporting:
|
|
// Instruction does not dominate all uses!
|
|
// %tmp.exprcleanup = alloca i32*, align 8
|
|
// store i32* %x, i32** %tmp.exprcleanup, align 8
|
|
|
|
|
|
// CHECK-LABEL: f(
|
|
extern "C" coro f(int) {
|
|
int x = 42;
|
|
x = co_await A{};
|
|
consume(x);
|
|
}
|