blob: f99990cf33bc200cf68759bfc70604bda4d47dfa [file] [log] [blame]
; Verify that we correctly handle suspend when the coro.end block contains phi
; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
define i8* @f(i32 %n) {
%id = call token 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)
%0 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %0, label %suspend [i8 0, label %cleanup i8 1, label %cleanup]
%mem = call i8* %id, i8* %hdl)
call void @free(i8* %mem)
br label %suspend
%r = phi i32 [%n, %entry], [1, %cleanup]
call i1 @llvm.coro.end(i8* %hdl, i1 false)
call void @print(i32 %r)
ret i8* %hdl
; CHECK-LABEL: @main
define i32 @main() {
%hdl = call i8* @f(i32 4)
call void @llvm.coro.resume(i8* %hdl)
ret i32 0
;CHECK: call void @print(i32 4)
;CHECK: ret i32 0
declare i8* @llvm.coro.alloc()
declare i32 @llvm.coro.size.i32()
declare i8*, i8*)
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 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*)