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Source file test/fixedbugs/issue4066.go

Documentation: test/fixedbugs

     1  // run
     2  
     3  // Copyright 2012 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  // issue 4066: return values not being spilled eagerly enough
     8  
     9  package main
    10  
    11  func main() {
    12  	n := foo()
    13  	if n != 2 {
    14  		println(n)
    15  		panic("wrong return value")
    16  	}
    17  }
    18  
    19  type terr struct{}
    20  
    21  func foo() (val int) {
    22  	val = 0
    23  	defer func() {
    24  		if x := recover(); x != nil {
    25  			_ = x.(terr)
    26  		}
    27  	}()
    28  	for {
    29  		val = 2
    30  		foo1()
    31  	}
    32  	panic("unreachable")
    33  }
    34  
    35  func foo1() {
    36  	panic(terr{})
    37  }
    38  

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