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Source file test/fixedbugs/issue20029.go

Documentation: test/fixedbugs

  // run
  
  // Copyright 2017 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 20029: make sure we zero at VARKILLs of
  // ambiguously live variables.
  // The ambiguously live variable here is the hiter
  // for the inner range loop.
  
  package main
  
  import "runtime"
  
  func f(m map[int]int) {
  outer:
  	for i := 0; i < 10; i++ {
  		for k := range m {
  			if k == 5 {
  				continue outer
  			}
  		}
  		runtime.GC()
  		break
  	}
  	runtime.GC()
  }
  func main() {
  	m := map[int]int{1: 2, 2: 3, 3: 4}
  	f(m)
  }
  

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