| // 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 | 
 | */ |