mirror of
https://github.com/golang/go
synced 2024-11-24 23:17:57 -07:00
27 lines
514 B
Go
27 lines
514 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2013 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
|
||
|
|
|
||
|
|
func F(xi, yi interface{}) uint64 {
|
||
|
|
x, y := xi.(uint64), yi.(uint64)
|
||
|
|
return x &^ y
|
||
|
|
}
|
||
|
|
|
||
|
|
func G(xi, yi interface{}) uint64 {
|
||
|
|
return xi.(uint64) &^ yi.(uint64) // generates incorrect code
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
var x, y uint64 = 0, 1 << 63
|
||
|
|
f := F(x, y)
|
||
|
|
g := G(x, y)
|
||
|
|
if f != 0 || g != 0 {
|
||
|
|
println("F", f, "G", g)
|
||
|
|
panic("bad")
|
||
|
|
}
|
||
|
|
}
|