1 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
3 %"struct.std::coroutine_handle" = type { ptr }
4 %"struct.std::coroutine_handle.0" = type { %"struct.std::coroutine_handle" }
5 %"struct.lean_future<int>::Awaiter" = type { i32, %"struct.std::coroutine_handle.0" }
7 declare ptr @malloc(i64)
9 %i8.array = type { [100 x i8] }
10 declare void @consume.i8(ptr)
12 ; The testval lives across suspend point so that it should be put on the frame.
13 ; However, part of testval has lifetime marker which indicates the part
14 ; wouldn't live across suspend point.
15 ; This test whether or not %testval would be put on the frame by ignoring the
16 ; partial lifetime markers.
17 define void @foo(ptr %to_store) presplitcoroutine {
19 %testval = alloca %i8.array
20 %subrange = getelementptr inbounds %i8.array, ptr %testval, i64 0, i32 0, i64 50
21 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
22 %alloc = call ptr @malloc(i64 16) #3
23 %vFrame = call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %alloc)
25 call void @llvm.lifetime.start.p0(i64 50, ptr %subrange)
26 call void @consume.i8(ptr %subrange)
27 call void @llvm.lifetime.end.p0(i64 50, ptr %subrange)
28 store ptr %testval, ptr %to_store
30 %save = call token @llvm.coro.save(ptr null)
31 %suspend = call i8 @llvm.coro.suspend(token %save, i1 false)
32 switch i8 %suspend, label %exit [
33 i8 0, label %await.ready
37 %StrayCoroSave = call token @llvm.coro.save(ptr null)
40 call i1 @llvm.coro.end(ptr null, i1 false, token none)
44 ; Verify that for both foo and bar, testval isn't put on the frame.
45 ; CHECK: %foo.Frame = type { ptr, ptr, %i8.array, i1 }
47 declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr)
48 declare i1 @llvm.coro.alloc(token) #3
49 declare i64 @llvm.coro.size.i64() #5
50 declare ptr @llvm.coro.begin(token, ptr writeonly) #3
51 declare token @llvm.coro.save(ptr) #3
52 declare ptr @llvm.coro.frame() #5
53 declare i8 @llvm.coro.suspend(token, i1) #3
54 declare ptr @llvm.coro.free(token, ptr nocapture readonly) #2
55 declare i1 @llvm.coro.end(ptr, i1, token) #3
56 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #4
57 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #4