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] } 8declare ptr @malloc(i64) 9declare void @consume(ptr) 10declare void @consume.2(ptr) 11define void @a(i1 zeroext %cond) presplitcoroutine { 12entry: 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 = call token @llvm.coro.id(i32 16, ptr nonnull %__promise, ptr @a, ptr null) 19 br label %init.ready 20init.ready: 21 %1 = call noalias nonnull ptr @llvm.coro.begin(token %0, ptr null) 22 call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %__promise) 23 br i1 %cond, label %if.then, label %if.else 24if.then: 25 call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %a) 26 call void @consume(ptr nonnull %a) 27 %save = call token @llvm.coro.save(ptr null) 28 %suspend = call i8 @llvm.coro.suspend(token %save, i1 false) 29 switch i8 %suspend, label %coro.ret [ 30 i8 0, label %await.ready 31 i8 1, label %cleanup1 32 ] 33await.ready: 34 call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %a) 35 br label %cleanup1 36if.else: 37 call void @llvm.lifetime.start.p0(i64 300, ptr nonnull %b) 38 call void @consume.2(ptr nonnull %b) 39 %save2 = call token @llvm.coro.save(ptr null) 40 %suspend2 = call i8 @llvm.coro.suspend(token %save2, i1 false) 41 switch i8 %suspend2, label %coro.ret [ 42 i8 0, label %await2.ready 43 i8 1, label %cleanup2 44 ] 45await2.ready: 46 call void @llvm.lifetime.end.p0(i64 300, ptr nonnull %b) 47 br label %cleanup2 48cleanup1: 49 call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %a) 50 br label %cleanup 51cleanup2: 52 call void @llvm.lifetime.end.p0(i64 300, ptr nonnull %b) 53 br label %cleanup 54cleanup: 55 call ptr @llvm.coro.free(token %0, ptr %1) 56 br label %coro.ret 57coro.ret: 58 call i1 @llvm.coro.end(ptr null, i1 false, token none) 59 ret void 60} 61; CHECK: %a.Frame = type { ptr, ptr, %"struct.task::promise_type", %struct.big_structure, i1 } 62; CHECK-LABEL: @a.resume( 63 64declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) 65declare i1 @llvm.coro.alloc(token) #3 66declare i64 @llvm.coro.size.i64() #5 67declare ptr @llvm.coro.begin(token, ptr writeonly) #3 68declare token @llvm.coro.save(ptr) #3 69declare ptr @llvm.coro.frame() #5 70declare i8 @llvm.coro.suspend(token, i1) #3 71declare ptr @llvm.coro.free(token, ptr nocapture readonly) #2 72declare i1 @llvm.coro.end(ptr, i1, token) #3 73declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #4 74declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #4 75