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27 lines
480 B
Go
27 lines
480 B
Go
// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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// 5g bug used to set up the 0 for -f() before calling f,
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// and the call to f smashed the register.
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func f(n int) int {
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s := 0
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for i := 0; i < n; i++ {
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s += i>>1
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}
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return s
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}
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func main() {
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x := -f(100)
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if x != -2450 {
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println(x)
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panic("broken")
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}
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}
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