}
		}
	}

	// Turn functions into machine code images.
	for _, s := range text {
		mkfwd(s)
		if ctxt.Arch.ErrorCheck != nil {
			ctxt.Arch.ErrorCheck(ctxt, s)
		}
		linkpatch(ctxt, s, newprog)
		ctxt.Arch.Preprocess(ctxt, s, newprog)
		ctxt.Arch.Assemble(ctxt, s, newprog)
		if ctxt.Errors > 0 {
			continue
		}
		linkpcln(ctxt, s)
		ctxt.populateDWARF(plist.Curfn, s)

func isLinkPath(path string) (bool, error) {
	cmd := exec.Command("powershell", "/c", "$ErrorActionPreference = 'Stop'; (Get-Item -Force -LiteralPath $env:linkpath).LinkType")
	cmd.Env = append(os.Environ(), fmt.Sprintf("linkpath=%s", path))
	klog.V(8).Infof("Executing command: %q", cmd.String())
	output, err := cmd.CombinedOutput()
	if err != nil {
		return false, err
	}
	if strings.TrimSpace(string(output)) != "" {
		return true, nil
	}

// - floating point: X0 - X14
var configAMD64 = abi.NewABIConfig(9, 15, 0, 1)

func TestMain(m *testing.M) {
	ssagen.Arch.LinkArch = &x86.Linkamd64
	ssagen.Arch.REGSP = x86.REGSP
	ssagen.Arch.MAXWIDTH = 1 << 50
	types.MaxWidth = ssagen.Arch.MAXWIDTH
	base.Ctxt = obj.Linknew(ssagen.Arch.LinkArch)
	base.Ctxt.DiagFunc = base.Errorf
	base.Ctxt.DiagFlush = base.FlushErrors
	base.Ctxt.Bso = bufio.NewWriter(os.Stdout)

		unspill.As = ra.Unspill
		unspill.From = ra.Addr
		unspill.To.Type = TYPE_REG
		unspill.To.Reg = ra.Reg
		last = unspill
	}
	return last
}

// LinkArch is the definition of a single architecture.
type LinkArch struct {
	*sys.Arch
	Init           func(*Link)
	ErrorCheck     func(*Link, *LSym)
	Preprocess     func(*Link, *LSym, ProgAlloc)
	Assemble       func(*Link, *LSym, ProgAlloc)

		n = cheapExpr(n, init)
		n = soleComponent(init, n)
		// byteindex widens n so that the multiplication doesn't overflow.
		index := ir.NewBinaryExpr(base.Pos, ir.OLSH, byteindex(n), ir.NewInt(base.Pos, 3))
		if ssagen.Arch.LinkArch.ByteOrder == binary.BigEndian {
			index = ir.NewBinaryExpr(base.Pos, ir.OADD, index, ir.NewInt(base.Pos, 7))
		}
		// The actual type is [256]uint64, but we use [256*8]uint8 so we can address
		// individual bytes.

	TypeGNULongName = 'L'
	TypeGNULongLink = 'K'
)

// Keywords for PAX extended header records.
const (
	paxNone     = "" // Indicates that no PAX key is suitable
	paxPath     = "path"
	paxLinkpath = "linkpath"
	paxSize     = "size"
	paxUid      = "uid"
	paxGid      = "gid"
	paxUname    = "uname"
	paxGname    = "gname"
	paxMtime    = "mtime"
	paxAtime    = "atime"

	const minCases = 8   // have at least minCases cases in the switch
	const minDensity = 4 // use at least 1 out of every minDensity entries

	if base.Flag.N != 0 || !ssagen.Arch.LinkArch.CanJumpTable || base.Ctxt.Retpoline {
		return false
	}
	if len(cc) < minCases {
		return false // not enough cases for it to be worth it
	}
	if cc[0].lo.Val().Kind() != constant.Int {

import (
	"cmd/internal/goobj"
	"cmd/internal/notsha256"
	"cmd/internal/objabi"
	"encoding/base64"
	"encoding/binary"
	"fmt"
	"internal/buildcfg"
	"log"
	"math"
	"sort"
)

func Linknew(arch *LinkArch) *Link {
	ctxt := new(Link)
	ctxt.hash = make(map[string]*LSym)
	ctxt.funchash = make(map[string]*LSym)
	ctxt.statichash = make(map[string]*LSym)
	ctxt.Arch = arch
	ctxt.Pathname = objabi.WorkingDir()

	"cmd/compile/internal/ssagen"
	"cmd/compile/internal/typecheck"
	"cmd/compile/internal/types"
	"cmd/internal/src"
	"cmd/internal/sys"
)

func cheapComputableIndex(width int64) bool {
	switch ssagen.Arch.LinkArch.Family {
	// MIPS does not have R+R addressing
	// Arm64 may lack ability to generate this code in our assembler,
	// but the architecture supports it.
	case sys.PPC64, sys.S390X:
		return width == 1

	AXXMTACC:   true,
	AXXMFACC:   true,
}

var Linkppc64 = obj.LinkArch{
	Arch:           sys.ArchPPC64,
	Init:           buildop,
	Preprocess:     preprocess,
	Assemble:       span9,
	Progedit:       progedit,
	UnaryDst:       unaryDst,
	DWARFRegisters: PPC64DWARFRegisters,
}

var Linkppc64le = obj.LinkArch{
	Arch:           sys.ArchPPC64LE,
	Init:           buildop,