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268c065eab
When coroutines are used w/ both -ffat-lto-objects and -flto=thin, the coroutine passes are not added to the optimization pipelines. Ensure they are added before ModuleOptimization to generate a working ELF object. Fixes #134409.
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
// An end-to-end test to make sure coroutine passes are added for thinlto.
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// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++23 -ffat-lto-objects -flto=thin -emit-llvm %s -O3 -o - \
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// RUN: | FileCheck %s
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#include "Inputs/coroutine.h"
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class BasicCoroutine {
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public:
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struct Promise {
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BasicCoroutine get_return_object() { return BasicCoroutine {}; }
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void unhandled_exception() noexcept { }
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void return_void() noexcept { }
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std::suspend_never initial_suspend() noexcept { return {}; }
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std::suspend_never final_suspend() noexcept { return {}; }
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};
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using promise_type = Promise;
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};
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// COM: match the embedded module, so we don't match something in it by accident.
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// CHECK: @llvm.embedded.object = {{.*}}
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// CHECK: @llvm.compiler.used = {{.*}}
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BasicCoroutine coro() {
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// CHECK: define {{.*}} void @_Z4corov() {{.*}} {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: ret void
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// CHECK-NEXT: }
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co_return;
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}
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int main() {
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// CHECK: define {{.*}} i32 @main() {{.*}} {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: tail call void @_Z4corov()
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// CHECK-NEXT: ret i32 0
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// CHECK-NEXT: }
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coro();
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}
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