| // 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 | |
| } |