| // run | |
| // Copyright 2012 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // issue 4066: return values not being spilled eagerly enough | |
| package main | |
| func main() { | |
| n := foo() | |
| if n != 2 { | |
| println(n) | |
| panic("wrong return value") | |
| } | |
| } | |
| type terr struct{} | |
| func foo() (val int) { | |
| val = 0 | |
| defer func() { | |
| if x := recover(); x != nil { | |
| _ = x.(terr) | |
| } | |
| }() | |
| for { | |
| val = 2 | |
| foo1() | |
| } | |
| panic("unreachable") | |
| } | |
| func foo1() { | |
| panic(terr{}) | |
| } |