mirror of
https://github.com/golang/go
synced 2024-11-18 14:44:41 -07:00
37 lines
526 B
Go
37 lines
526 B
Go
|
// compile
|
||
|
|
|
||
|
|
// 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.
|
||
|
|
|
||
|
|
// Used to leak registers on 8g.
|
||
|
|
|
||
|
|
package p
|
||
|
|
|
||
|
|
func f(x byte, y uint64) {
|
||
|
|
var r byte
|
||
|
|
switch y {
|
||
|
|
case 1:
|
||
|
|
r = x << y // '>>' triggers it too
|
||
|
|
case 2:
|
||
|
|
r = x << y
|
||
|
|
case 3:
|
||
|
|
r = x << y
|
||
|
|
case 4:
|
||
|
|
r = x << y
|
||
|
|
case 5:
|
||
|
|
r = x << y
|
||
|
|
case 6:
|
||
|
|
r = x << y
|
||
|
|
case 7:
|
||
|
|
r = x << y
|
||
|
|
case 8:
|
||
|
|
r = x << y
|
||
|
|
case 9:
|
||
|
|
r = x << y
|
||
|
|
case 10:
|
||
|
|
r = x << y
|
||
|
|
}
|
||
|
|
_ = r
|
||
|
|
}
|