// run // Copyright 2018 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. package main func main() { var s uint var x = interface{}(1<<s + 1<<s) // compiler must not crash here if x.(int) != 2 { panic("x not int or not 2") } var y interface{} y = 1<<s + 1 // compiler must not crash here if y.(int) != 2 { panic("y not int or not 2") } }