| ; Tests that if an alloca is escaped through storing the address, |
| ; the alloac will be put on the frame. |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| define i8* @f() "coroutine.presplit"="1" { |
| entry: |
| %x = alloca i64 |
| %y = alloca i32* |
| %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) |
| %x.alias = bitcast i64* %x to i32* |
| store i32* %x.alias, i32** %y |
| %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp1, label %suspend [i8 0, label %resume |
| i8 1, label %cleanup] |
| resume: |
| %x1 = load i32*, i32** %y |
| call void @print(i32* %x1) |
| br label %cleanup |
| |
| cleanup: |
| %mem = call i8* @llvm.coro.free(token %id, i8* %hdl) |
| call void @free(i8* %mem) |
| br label %suspend |
| |
| suspend: |
| call i1 @llvm.coro.end(i8* %hdl, i1 0) |
| ret i8* %hdl |
| } |
| |
| ; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i64, i32*, i1 } |
| ; CHECK-LABEL: define i8* @f() |
| ; CHECK: %x.reload.addr = getelementptr inbounds %f.Frame, %f.Frame* %FramePtr, i32 0, i32 2 |
| ; CHECK: %y.reload.addr = getelementptr inbounds %f.Frame, %f.Frame* %FramePtr, i32 0, i32 3 |
| ; CHECK: %x.alias = bitcast i64* %x.reload.addr to i32* |
| ; CHECK: store i32* %x.alias, i32** %y.reload.addr, align 8 |
| |
| 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 void @print(i32*) |
| declare noalias i8* @malloc(i32) |
| declare void @free(i8*) |