| ; Verifies that we materialize instruction across suspend points |
| ; RUN: opt < %s -coro-split -S | FileCheck %s |
| ; RUN: opt < %s -passes=coro-split -S | FileCheck %s |
| |
| define i8* @f(i32 %n) "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) |
| |
| %inc1 = add i32 %n, 1 |
| %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp1, label %suspend [i8 0, label %resume1 |
| i8 1, label %cleanup] |
| resume1: |
| %inc2 = add i32 %inc1, 1 |
| %sp2 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp1, label %suspend [i8 0, label %resume2 |
| i8 1, label %cleanup] |
| |
| resume2: |
| call void @print(i32 %inc1) |
| call void @print(i32 %inc2) |
| 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 |
| } |
| |
| ; See that we only spilled one value |
| ; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i32, i1 } |
| ; CHECK-LABEL: @f( |
| |
| 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 void @print(i32) |
| declare void @free(i8*) |
