blob: cff2e9ca6f0a48dadc2f0dd9c07456dda06c1fd1 [file] [log] [blame]
; Tests that a coroutine is split, inlined into the caller and devirtualized.
; RUN: opt < %s -S -enable-coroutines -O2 | FileCheck %s
define i8* @f() {
%id = call token 0, i8* null, i8* null, i8* null)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)
br i1 %need.dyn.alloc, label %dyn.alloc, label %coro.begin
%size = call i32 @llvm.coro.size.i32()
%alloc = call i8* @malloc(i32 %size)
br label %coro.begin
%phi = phi i8* [ null, %entry ], [ %alloc, %dyn.alloc ]
%hdl = call i8* @llvm.coro.begin(token %id, i8* %phi)
call void @print(i32 0)
%0 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %0, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
call void @print(i32 1)
br label %cleanup
%mem = call i8* %id, i8* %hdl)
call void @free(i8* %mem)
br label %suspend
call i1 @llvm.coro.end(i8* %hdl, i1 0)
ret i8* %hdl
define i32 @main() {
%hdl = call i8* @f()
call void @llvm.coro.resume(i8* %hdl)
ret i32 0
; CHECK-LABEL: @main(
; CHECK: call void @print(i32 0)
; CHECK: call void @print(i32 1)
; CHECK: ret i32 0
declare i8*, 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, 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*)