1 ; Tests that variables of different type in a Corotuine whose lifetime range is not overlapping each other
2 ; re-use the same slot in Coroutine frame.
3 ; RUN: opt < %s -passes='cgscc(coro-split<reuse-storage>),simplifycfg,early-cse' -S | FileCheck %s
4 %"struct.task::promise_type" = type { i8 }
5 %struct.awaitable = type { i8 }
6 %struct.big_structure = type { [500 x i8] }
7 %struct.big_structure.2 = type { [300 x i8] }
8 declare i8* @malloc(i64)
9 declare void @consume(%struct.big_structure*)
10 declare void @consume.2(%struct.big_structure.2*)
11 define void @a(i1 zeroext %cond) presplitcoroutine {
13 %__promise = alloca %"struct.task::promise_type", align 1
14 %a = alloca %struct.big_structure, align 1
15 %ref.tmp7 = alloca %struct.awaitable, align 1
16 %b = alloca %struct.big_structure.2, align 1
17 %ref.tmp18 = alloca %struct.awaitable, align 1
18 %0 = getelementptr inbounds %"struct.task::promise_type", %"struct.task::promise_type"* %__promise, i64 0, i32 0
19 %1 = call token @llvm.coro.id(i32 16, i8* nonnull %0, i8* bitcast (void (i1)* @a to i8*), i8* null)
22 %2 = call noalias nonnull i8* @llvm.coro.begin(token %1, i8* null)
23 call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %0)
24 br i1 %cond, label %if.then, label %if.else
26 %3 = getelementptr inbounds %struct.big_structure, %struct.big_structure* %a, i64 0, i32 0, i64 0
27 call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %3)
28 call void @consume(%struct.big_structure* nonnull %a)
29 %save = call token @llvm.coro.save(i8* null)
30 %suspend = call i8 @llvm.coro.suspend(token %save, i1 false)
31 switch i8 %suspend, label %coro.ret [
32 i8 0, label %await.ready
36 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %3)
39 %4 = getelementptr inbounds %struct.big_structure.2, %struct.big_structure.2* %b, i64 0, i32 0, i64 0
40 call void @llvm.lifetime.start.p0i8(i64 300, i8* nonnull %4)
41 call void @consume.2(%struct.big_structure.2* nonnull %b)
42 %save2 = call token @llvm.coro.save(i8* null)
43 %suspend2 = call i8 @llvm.coro.suspend(token %save2, i1 false)
44 switch i8 %suspend2, label %coro.ret [
45 i8 0, label %await2.ready
49 call void @llvm.lifetime.end.p0i8(i64 300, i8* nonnull %4)
52 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %3)
55 call void @llvm.lifetime.end.p0i8(i64 300, i8* nonnull %4)
58 call i8* @llvm.coro.free(token %1, i8* %2)
61 call i1 @llvm.coro.end(i8* null, i1 false)
64 ; CHECK: %a.Frame = type { void (%a.Frame*)*, void (%a.Frame*)*, %"struct.task::promise_type", %struct.big_structure, i1 }
65 ; CHECK-LABEL: @a.resume(
66 ; CHECK: %[[A:.*]] = getelementptr inbounds %a.Frame, %a.Frame* %FramePtr, i32 0, i32 3
67 ; CHECK: %{{.*}} = bitcast %struct.big_structure* %[[A]] to %struct.big_structure.2*
69 declare token @llvm.coro.id(i32, i8* readnone, i8* nocapture readonly, i8*)
70 declare i1 @llvm.coro.alloc(token) #3
71 declare i64 @llvm.coro.size.i64() #5
72 declare i8* @llvm.coro.begin(token, i8* writeonly) #3
73 declare token @llvm.coro.save(i8*) #3
74 declare i8* @llvm.coro.frame() #5
75 declare i8 @llvm.coro.suspend(token, i1) #3
76 declare i8* @llvm.coro.free(token, i8* nocapture readonly) #2
77 declare i1 @llvm.coro.end(i8*, i1) #3
78 declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #4
79 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #4