go issue33580 源码
golang issue33580 代码
文件路径：/test/codegen/issue33580.go
// asmcheck
// Copyright 2019 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.
// Make sure we reuse large constant loads, if we can.
// See issue 33580.
package codegen
const (
A = 7777777777777777
B = 8888888888888888
)
func f(x, y uint64) uint64 {
p := x & A
q := y & A
r := x & B
// amd64:-"MOVQ.*8888888888888888"
s := y & B
return p * q * r * s
}
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