| ; Check that we should not reuse alloca sotrage in O0. |
| ; RUN: opt < %s -coro-split -S | FileCheck %s |
| ; RUN: opt < %s -passes=coro-split -S | FileCheck %s |
| |
| %struct.big_structure = type { [500 x i8] } |
| declare void @consume(%struct.big_structure*) |
| |
| ; Function Attrs: noinline optnone uwtable |
| define i8* @f(i1 %cond) "coroutine.presplit"="1" { |
| entry: |
| %data = alloca %struct.big_structure, align 1 |
| %data2 = alloca %struct.big_structure, align 1 |
| %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null) |
| %size = call i32 @llvm.coro.size.i32() |
| %alloc = call i8* @malloc(i32 %size) |
| %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc) |
| br i1 %cond, label %then, label %else |
| |
| then: |
| %0 = bitcast %struct.big_structure* %data to i8* |
| call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %0) |
| call void @consume(%struct.big_structure* %data) |
| %suspend.value = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %suspend.value, label %coro.ret [i8 0, label %resume |
| i8 1, label %cleanup1] |
| |
| resume: |
| call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0) |
| br label %cleanup1 |
| |
| cleanup1: |
| call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0) |
| br label %cleanup |
| |
| else: |
| %1 = bitcast %struct.big_structure* %data2 to i8* |
| call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %1) |
| call void @consume(%struct.big_structure* %data2) |
| %suspend.value2 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %suspend.value2, label %coro.ret [i8 0, label %resume2 |
| i8 1, label %cleanup2] |
| |
| resume2: |
| call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1) |
| br label %cleanup2 |
| |
| cleanup2: |
| call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1) |
| br label %cleanup |
| |
| cleanup: |
| %mem = call i8* @llvm.coro.free(token %id, i8* %hdl) |
| call void @free(i8* %mem) |
| br label %coro.ret |
| coro.ret: |
| call i1 @llvm.coro.end(i8* %hdl, i1 0) |
| ret i8* %hdl |
| } |
| |
| ; CHECK-LABEL: @f( |
| ; CHECK: call i8* @malloc(i32 1024) |
| |
| declare i8* @llvm.coro.free(token, i8*) |
| declare i32 @llvm.coro.size.i32() |
| declare i8 @llvm.coro.suspend(token, i1) |
| declare void @llvm.coro.resume(i8*) |
| declare void @llvm.coro.destroy(i8*) |
| |
| declare token @llvm.coro.id(i32, i8*, i8*, i8*) |
| declare i1 @llvm.coro.alloc(token) |
| declare i8* @llvm.coro.begin(token, i8*) |
| declare i1 @llvm.coro.end(i8*, i1) |
| |
| declare noalias i8* @malloc(i32) |
| declare double @print(double) |
| declare void @free(i8*) |
| |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) |
