| ; Check that we can handle the case when both alloc function and |
| ; the user body consume the same argument. |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| ; using copy of this (as it would happen under -O0) |
| define ptr @f_copy(i64 %this_arg) presplitcoroutine { |
| entry: |
| %this.addr = alloca i64 |
| store i64 %this_arg, ptr %this.addr |
| %this = load i64, ptr %this.addr |
| %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null) |
| %size = call i32 @llvm.coro.size.i32() |
| %alloc = call ptr @myAlloc(i64 %this, i32 %size) |
| %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc) |
| %0 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %0, label %suspend [i8 0, label %resume |
| i8 1, label %cleanup] |
| resume: |
| call void @print2(i64 %this) |
| br label %cleanup |
| |
| cleanup: |
| %mem = call ptr @llvm.coro.free(token %id, ptr %hdl) |
| call void @free(ptr %mem) |
| br label %suspend |
| suspend: |
| call i1 @llvm.coro.end(ptr %hdl, i1 0, token none) |
| ret ptr %hdl |
| } |
| |
| ; See if %this was added to the frame |
| ; CHECK: %f_copy.Frame = type { ptr, ptr, i64, i1 } |
| |
| ; See that %this is spilled into the frame |
| ; CHECK-LABEL: define ptr @f_copy(i64 %this_arg) |
| ; CHECK: %this.addr = alloca i64, align 8 |
| ; CHECK: store i64 %this_arg, ptr %this.addr, align 4 |
| ; CHECK: %this.spill.addr = getelementptr inbounds %f_copy.Frame, ptr %hdl, i32 0, i32 2 |
| ; CHECK: store i64 %this_arg, ptr %this.spill.addr |
| ; CHECK: ret ptr %hdl |
| |
| ; See that %this was loaded from the frame |
| ; CHECK-LABEL: @f_copy.resume( |
| ; CHECK: %this.reload = load i64, ptr %this.reload.addr |
| ; CHECK: call void @print2(i64 %this.reload) |
| ; CHECK: ret void |
| |
| declare ptr @llvm.coro.free(token, ptr) |
| declare i32 @llvm.coro.size.i32() |
| declare i8 @llvm.coro.suspend(token, i1) |
| declare void @llvm.coro.resume(ptr) |
| declare void @llvm.coro.destroy(ptr) |
| |
| declare token @llvm.coro.id(i32, ptr, ptr, ptr) |
| declare i1 @llvm.coro.alloc(token) |
| declare ptr @llvm.coro.begin(token, ptr) |
| declare i1 @llvm.coro.end(ptr, i1, token) |
| |
| declare noalias ptr @myAlloc(i64, i32) |
| declare double @print(double) |
| declare void @print2(i64) |
| declare void @free(ptr) |