|  | // run | 
|  |  | 
|  | // 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. | 
|  |  | 
|  | // issue 1808 | 
|  |  | 
|  | package main | 
|  |  | 
|  | func main() { | 
|  | var i uint64 | 
|  | var x int = 12345 | 
|  |  | 
|  | if y := x << (i&5); y != 12345<<0 { | 
|  | println("BUG bug344", y) | 
|  | return | 
|  | } | 
|  |  | 
|  | i++ | 
|  | if y := x << (i&5); y != 12345<<1 { | 
|  | println("BUG bug344a", y) | 
|  | } | 
|  |  | 
|  | i = 70 | 
|  | if y := x << i; y != 0 { | 
|  | println("BUG bug344b", y) | 
|  | } | 
|  |  | 
|  | i = 1<<32 | 
|  | if y := x << i; y != 0 { | 
|  | println("BUG bug344c", y) | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | /* | 
|  | typecheck [1008592b0] | 
|  | .   INDREG a(1) l(15) x(24) tc(2) runtime.ret G0 string | 
|  | bug343.go:15: internal compiler error: typecheck INDREG | 
|  | */ |