| // run |
| |
| // Copyright 2015 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. |
| |
| // Issue 11987. The ppc64 SRADCC instruction was misassembled in a way |
| // lost bit 5 of the immediate so v>>32 was assembled as v>>0. SRADCC |
| // is only ever inserted by peep so it's hard to be sure when it will |
| // be used. This formulation worked when the bug was fixed. |
| |
| package main |
| |
| import "fmt" |
| |
| var v int64 = 0x80000000 |
| |
| func main() { |
| s := fmt.Sprintf("%v", v>>32 == 0) |
| if s != "true" { |
| fmt.Printf("BUG: v>>32 == 0 evaluated as %q\n", s) |
| } |
| } |
