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Source file test/fixedbugs/bug368.go

Documentation: test/fixedbugs

  // run
  
  // Copyright 2011 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.
  
  package main
  
  // 5g bug used to set up the 0 for -f() before calling f,
  // and the call to f smashed the register.
  
  func f(n int) int {
  	s := 0
  	for i := 0; i < n; i++ {
  		s += i>>1
  	}
  	return s
  }
  
  func main() {
  	x := -f(100)
  	if x != -2450 {
  		println(x)
  		panic("broken")
  	}
  }
  

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