mirror of
https://github.com/golang/go
synced 2024-11-23 02:20:03 -07:00
22 lines
402 B
Go
22 lines
402 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2021 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
|
||
|
|
|
||
|
|
import "fmt"
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func f(x uint64) uint64 {
|
||
|
|
s := "\x04"
|
||
|
|
c := s[0]
|
||
|
|
return x << c << 4
|
||
|
|
}
|
||
|
|
func main() {
|
||
|
|
if want, got := uint64(1<<8), f(1); want != got {
|
||
|
|
panic(fmt.Sprintf("want %x got %x", want, got))
|
||
|
|
}
|
||
|
|
}
|