Source File
	index_amd64.go

Belonging Package
	internal/bytealg

// 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 bytealg

import "internal/cpu"

const MaxBruteForce = 64

func init() {
	if cpu.X86.HasAVX2 {
		MaxLen = 63
	} else {
		MaxLen = 31
	}
}

// Cutover reports the number of failures of IndexByte we should tolerate
// before switching over to Index.
// n is the number of bytes processed so far.
// See the bytes.Index implementation for details.
func Cutover(n int) int {
	// 1 error per 8 characters, plus a few slop to start.
	return (n + 16) / 8
}

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