1 ; Check that we should not reuse alloca sotrage in O0.
2 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
4 %struct.big_structure = type { [500 x i8] }
5 declare void @consume(%struct.big_structure*)
7 ; Function Attrs: noinline optnone uwtable
8 define i8* @f(i1 %cond) "coroutine.presplit"="1" {
10 %data = alloca %struct.big_structure, align 1
11 %data2 = alloca %struct.big_structure, align 1
12 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
13 %size = call i32 @llvm.coro.size.i32()
14 %alloc = call i8* @malloc(i32 %size)
15 %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc)
16 br i1 %cond, label %then, label %else
19 %0 = bitcast %struct.big_structure* %data to i8*
20 call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %0)
21 call void @consume(%struct.big_structure* %data)
22 %suspend.value = call i8 @llvm.coro.suspend(token none, i1 false)
23 switch i8 %suspend.value, label %coro.ret [i8 0, label %resume
24 i8 1, label %cleanup1]
27 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0)
31 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0)
35 %1 = bitcast %struct.big_structure* %data2 to i8*
36 call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %1)
37 call void @consume(%struct.big_structure* %data2)
38 %suspend.value2 = call i8 @llvm.coro.suspend(token none, i1 false)
39 switch i8 %suspend.value2, label %coro.ret [i8 0, label %resume2
40 i8 1, label %cleanup2]
43 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1)
47 call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1)
51 %mem = call i8* @llvm.coro.free(token %id, i8* %hdl)
52 call void @free(i8* %mem)
55 call i1 @llvm.coro.end(i8* %hdl, i1 0)
60 ; CHECK: call i8* @malloc(i32 1024)
62 declare i8* @llvm.coro.free(token, i8*)
63 declare i32 @llvm.coro.size.i32()
64 declare i8 @llvm.coro.suspend(token, i1)
65 declare void @llvm.coro.resume(i8*)
66 declare void @llvm.coro.destroy(i8*)
68 declare token @llvm.coro.id(i32, i8*, i8*, i8*)
69 declare i1 @llvm.coro.alloc(token)
70 declare i8* @llvm.coro.begin(token, i8*)
71 declare i1 @llvm.coro.end(i8*, i1)
73 declare noalias i8* @malloc(i32)
74 declare double @print(double)
75 declare void @free(i8*)
77 declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
78 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)