| ; Tests that allocas after coro.begin are properly that do not need to |
| ; live on the frame are properly moved to the .resume function. |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| define i8* @f() "coroutine.presplit"="1" { |
| entry: |
| %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 = alloca i32 |
| %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp1, label %suspend [i8 0, label %resume |
| i8 1, label %cleanup] |
| resume: |
| %x.value = load i32, i32* %x |
| call void @print(i32 %x.value) |
| 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-LABEL: @f.resume( |
| ; CHECK-NEXT: entry.resume: |
| ; CHECK-NEXT: [[VFRAME:%.*]] = bitcast %f.Frame* [[FRAMEPTR:%.*]] to i8* |
| ; CHECK-NEXT: [[X:%.*]] = alloca i32, align 4 |
| ; CHECK: [[X_VALUE:%.*]] = load i32, i32* [[X]], align 4 |
| ; CHECK-NEXT: call void @print(i32 [[X_VALUE]]) |
| ; CHECK: call void @free(i8* [[VFRAME]]) |
| ; CHECK: ret void |
| |
| 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*) |