c75cedc237
This fixes bug49264. Simply, coroutine shouldn't be inlined before CoroSplit. And the marker for pre-splited coroutine is created in CoroEarly pass, which ran after AlwaysInliner Pass in O0 pipeline. So that the AlwaysInliner couldn't detect it shouldn't inline a coroutine. So here is the error. This patch set the presplit attribute in clang and mlir. So the inliner would always detect the attribute before splitting. Reviewed By: rjmccall, ezhulenev Differential Revision: https://reviews.llvm.org/D115790
21 lines
562 B
C++
21 lines
562 B
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++20 -disable-llvm-passes -emit-llvm %s -o - | FileCheck %s
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#include "Inputs/coroutine.h"
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using namespace std;
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struct coro {
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struct promise_type {
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coro get_return_object();
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suspend_never initial_suspend();
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suspend_never final_suspend() noexcept;
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void return_void();
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static void unhandled_exception();
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};
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};
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// CHECK: void @_Z3foov() #[[FOO_ATTR_NUM:[0-9]+]]
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// CHECK: attributes #[[FOO_ATTR_NUM]] = { {{.*}} "coroutine.presplit"="0"
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coro foo() {
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co_await suspend_always{};
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}
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