| ; Tests that the coro.align intrinsic could be lowered to correct alignment |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| define ptr @f() presplitcoroutine { |
| entry: |
| %x = alloca i64, align 16 |
| %y = alloca i64 |
| %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null) |
| %size = call i32 @llvm.coro.size.i32() |
| %align = call i32 @llvm.coro.align.i32() |
| %alloc = call ptr @aligned_alloc(i32 %align, i32 %size) |
| %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc) |
| %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp1, label %suspend [i8 0, label %resume |
| i8 1, label %cleanup] |
| resume: |
| call void @capture_call(ptr %x) |
| call void @capture_call(ptr %y) |
| 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 |
| } |
| |
| ; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape. |
| ; CHECK: %f.Frame = type { ptr, ptr, i64, i64, i1 } |
| ; CHECK-LABEL: define ptr @f() |
| ; CHECK: %[[ALLOC:.+]] = call ptr @aligned_alloc(i32 16, i32 40) |
| ; CHECK-NEXT: call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %[[ALLOC]]) |
| |
| declare ptr @llvm.coro.free(token, ptr) |
| declare i32 @llvm.coro.size.i32() |
| declare i32 @llvm.coro.align.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 void @capture_call(ptr) |
| declare void @nocapture_call(ptr nocapture) |
| declare noalias ptr @aligned_alloc(i32, i32) |
| declare void @free(ptr) |