| ; Tests that variables of different type in a Corotuine whose lifetime range is not overlapping each other |
| ; re-use the same slot in Coroutine frame. |
| ; RUN: opt < %s -passes='cgscc(coro-split<reuse-storage>),simplifycfg,early-cse' -S | FileCheck %s |
| %"struct.task::promise_type" = type { i8 } |
| %struct.awaitable = type { i8 } |
| %struct.big_structure = type { [500 x i8] } |
| %struct.big_structure.2 = type { [300 x i8] } |
| declare ptr @malloc(i64) |
| declare void @consume(ptr) |
| declare void @consume.2(ptr) |
| define void @a(i1 zeroext %cond) presplitcoroutine { |
| entry: |
| %__promise = alloca %"struct.task::promise_type", align 1 |
| %a = alloca %struct.big_structure, align 1 |
| %ref.tmp7 = alloca %struct.awaitable, align 1 |
| %b = alloca %struct.big_structure.2, align 1 |
| %ref.tmp18 = alloca %struct.awaitable, align 1 |
| %0 = call token @llvm.coro.id(i32 16, ptr nonnull %__promise, ptr @a, ptr null) |
| br label %init.ready |
| init.ready: |
| %1 = call noalias nonnull ptr @llvm.coro.begin(token %0, ptr null) |
| call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %__promise) |
| br i1 %cond, label %if.then, label %if.else |
| if.then: |
| call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %a) |
| call void @consume(ptr nonnull %a) |
| %save = call token @llvm.coro.save(ptr null) |
| %suspend = call i8 @llvm.coro.suspend(token %save, i1 false) |
| switch i8 %suspend, label %coro.ret [ |
| i8 0, label %await.ready |
| i8 1, label %cleanup1 |
| ] |
| await.ready: |
| call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %a) |
| br label %cleanup1 |
| if.else: |
| call void @llvm.lifetime.start.p0(i64 300, ptr nonnull %b) |
| call void @consume.2(ptr nonnull %b) |
| %save2 = call token @llvm.coro.save(ptr null) |
| %suspend2 = call i8 @llvm.coro.suspend(token %save2, i1 false) |
| switch i8 %suspend2, label %coro.ret [ |
| i8 0, label %await2.ready |
| i8 1, label %cleanup2 |
| ] |
| await2.ready: |
| call void @llvm.lifetime.end.p0(i64 300, ptr nonnull %b) |
| br label %cleanup2 |
| cleanup1: |
| call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %a) |
| br label %cleanup |
| cleanup2: |
| call void @llvm.lifetime.end.p0(i64 300, ptr nonnull %b) |
| br label %cleanup |
| cleanup: |
| call ptr @llvm.coro.free(token %0, ptr %1) |
| br label %coro.ret |
| coro.ret: |
| call i1 @llvm.coro.end(ptr null, i1 false, token none) |
| ret void |
| } |
| ; CHECK: %a.Frame = type { ptr, ptr, %"struct.task::promise_type", %struct.big_structure, i1 } |
| ; CHECK-LABEL: @a.resume( |
| |
| declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) |
| declare i1 @llvm.coro.alloc(token) #3 |
| declare i64 @llvm.coro.size.i64() #5 |
| declare ptr @llvm.coro.begin(token, ptr writeonly) #3 |
| declare token @llvm.coro.save(ptr) #3 |
| declare ptr @llvm.coro.frame() #5 |
| declare i8 @llvm.coro.suspend(token, i1) #3 |
| declare ptr @llvm.coro.free(token, ptr nocapture readonly) #2 |
| declare i1 @llvm.coro.end(ptr, i1, token) #3 |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #4 |
| declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #4 |
