// in the original obj/i386, and it would encode
				// (using a valid, shorter form) as 3c 00 if we enabled
				// the call to bytereg here.
				if ctxt.Arch.Family == sys.AMD64 {
					bytereg(&p.From, &p.Ft)
					bytereg(&p.To, &p.Tt)
				}

			case P32: // 32 bit but illegal if 64-bit mode
				if ctxt.Arch.Family == sys.AMD64 {

		}
		return -1
	case n > len(s):
		return -1
	case n <= bytealg.MaxLen:
		// Use brute force when s and substr both are small
		if len(s) <= bytealg.MaxBruteForce {
			return bytealg.IndexString(s, substr)
		}
		c0 := substr[0]
		c1 := substr[1]
		i := 0
		t := len(s) - n + 1
		fails := 0
		for i < t {
			if s[i] != c0 {
				// IndexByte is faster than bytealg.IndexString, so use it as long as

// Copyright 2015 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 strings

import "internal/bytealg"

// Compare returns an integer comparing two strings lexicographically.
// The result will be 0 if a == b, -1 if a < b, and +1 if a > b.
//
// Use Compare when you need to perform a three-way comparison (with

	n := 0
	for i := 0; i < len(s); i++ {
		if bytealg.IndexByteString(t, s[i]) >= 0 {
			n++
		}
	}
	return n
}

// Split s at any bytes in t.
func splitAtBytes(s string, t string) []string {
	a := make([]string, 1+countAnyByte(s, t))
	n := 0
	last := 0
	for i := 0; i < len(s); i++ {
		if bytealg.IndexByteString(t, s[i]) >= 0 {
			if last < i {
				a[n] = s[last:i]
				n++

		tests: []testFnc{
			testHeader{Header{
				Typeflag: TypeReg,
				Name:     "small.txt",
				Size:     5,
				Mode:     0640,
				Uid:      73025,
				Gid:      5000,
				Uname:    "dsymonds",
				Gname:    "eng",
				ModTime:  time.Unix(1246508266, 0),
			}, nil},
			testWrite{"Kilts", 5, nil},

			testHeader{Header{
				Typeflag: TypeReg,
				Name:     "small2.txt",
				Size:     11,

	} else {
		host = hostport[:i]
		if bytealg.IndexByteString(host, ':') >= 0 {
			return addrErr(hostport, tooManyColons)
		}
	}
	if bytealg.IndexByteString(hostport[j:], '[') >= 0 {
		return addrErr(hostport, "unexpected '[' in address")
	}
	if bytealg.IndexByteString(hostport[k:], ']') >= 0 {
		return addrErr(hostport, "unexpected ']' in address")
	}

// Copyright 2010 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 filepathlite

import (
	"internal/bytealg"
	"internal/stringslite"
)

const (
	Separator     = '/'    // OS-specific path separator
	ListSeparator = '\000' // OS-specific path list separator
)

func IsPathSeparator(c uint8) bool {
	return Separator == c
}

	"runtime/msan",
	"runtime/asan",
	// We omit bytealg even though it's imported by runtime because it also
	// backs a lot of package bytes. Currently we don't have a way to omit race
	// instrumentation when used from the runtime while keeping race
	// instrumentation when used from user code. Somehow this doesn't seem to
	// cause problems, though we may be skating on thin ice. See #61204.
	"-internal/bytealg",
}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build unix || (js && wasm) || wasip1

package filepathlite

import (
	"internal/bytealg"
	"internal/stringslite"
)

const (
	Separator     = '/' // OS-specific path separator
	ListSeparator = ':' // OS-specific path list separator
)

func IsPathSeparator(c uint8) bool {
	return Separator == c

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !windows

// Read system DNS config from /etc/resolv.conf

package net

import (
	"internal/bytealg"
	"internal/stringslite"
	"net/netip"
	"time"
)

// See resolv.conf(5) on a Linux machine.
func dnsReadConfig(filename string) *dnsConfig {
	conf := &dnsConfig{
		ndots:    1,
		timeout:  5 * time.Second,