; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s %"struct.std::coroutine_handle" = type { i8* } %"struct.std::coroutine_handle.0" = type { %"struct.std::coroutine_handle" } %"struct.lean_future<int>::Awaiter" = type { i32, %"struct.std::coroutine_handle.0" } declare i8* @malloc(i64) %i8.array = type { [100 x i8] } declare void @consume.i8(i8*) ; The testval lives across suspend point so that it should be put on the frame. ; However, part of testval has lifetime marker which indicates the part ; wouldn't live across suspend point. ; This test whether or not %testval would be put on the frame by ignoring the ; partial lifetime markers. define void @foo(%i8.array** %to_store) presplitcoroutine { entry: %testval = alloca %i8.array %subrange = getelementptr inbounds %i8.array, %i8.array* %testval, i64 0, i32 0, i64 50 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null) %alloc = call i8* @malloc(i64 16) #3 %vFrame = call noalias nonnull i8* @llvm.coro.begin(token %id, i8* %alloc) call void @llvm.lifetime.start.p0i8(i64 50, i8* %subrange) call void @consume.i8(i8* %subrange) call void @llvm.lifetime.end.p0i8(i64 50, i8* %subrange) store %i8.array* %testval, %i8.array** %to_store %save = call token @llvm.coro.save(i8* null) %suspend = call i8 @llvm.coro.suspend(token %save, i1 false) switch i8 %suspend, label %exit [ i8 0, label %await.ready i8 1, label %exit ] await.ready: %StrayCoroSave = call token @llvm.coro.save(i8* null) br label %exit exit: call i1 @llvm.coro.end(i8* null, i1 false) ret void } ; Verify that for both foo and bar, testval isn't put on the frame. ; CHECK: %foo.Frame = type { void (%foo.Frame*)*, void (%foo.Frame*)*, %i8.array, i1 } declare token @llvm.coro.id(i32, i8* readnone, i8* nocapture readonly, i8*) declare i1 @llvm.coro.alloc(token) #3 declare i64 @llvm.coro.size.i64() #5 declare i8* @llvm.coro.begin(token, i8* writeonly) #3 declare token @llvm.coro.save(i8*) #3 declare i8* @llvm.coro.frame() #5 declare i8 @llvm.coro.suspend(token, i1) #3 declare i8* @llvm.coro.free(token, i8* nocapture readonly) #2 declare i1 @llvm.coro.end(i8*, i1) #3 declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #4 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #4