mirror of
https://github.com/golang/go
synced 2024-11-24 17:20:12 -07:00
27 lines
480 B
Go
27 lines
480 B
Go
|
// $G $D/$F.go && $L $F.$A && ./$A.out
|
||
|
|
|
||
|
|
// 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")
|
||
|
|
}
|
||
|
|
}
|