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Change-Id: If542f0b5c5754e6eb2f9b302fe5a148ba9a57338 Reviewed-on: https://go-review.googlesource.com/98443 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
24 lines
582 B
Go
24 lines
582 B
Go
// asmcheck
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package codegen
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func rot32(x uint32) uint32 {
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var a uint32
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a += x<<7 | x>>25 // amd64:"ROLL.*[$]7" arm:"MOVW.*@>25"
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a += x<<8 + x>>24 // amd64:`ROLL.*\$8` arm:"MOVW.*@>24"
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a += x<<9 ^ x>>23 // amd64:"ROLL.*\\$9" arm:"MOVW.*@>23"
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return a
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}
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func rot64(x uint64) uint64 {
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var a uint64
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a += x<<7 | x>>57 // amd64:"ROL"
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a += x<<8 + x>>56 // amd64:"ROL"
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a += x<<9 ^ x>>55 // amd64:"ROL"
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return a
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}
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