sc += ".U"
	}
	return sc
}

func (p *Prog) String() string {
	if p == nil {
		return "<nil Prog>"
	}
	if p.Ctxt == nil {
		return "<Prog without ctxt>"
	}
	return fmt.Sprintf("%.5d (%v)\t%s", p.Pc, p.Line(), p.InstructionString())
}

func (p *Prog) InnermostString(w io.Writer) {
	if p == nil {
		io.WriteString(w, "<nil Prog>")
		return
	}
	if p.Ctxt == nil {

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

package x86

// argListMax specifies upper arg count limit expected to be carried by obj.Prog.
// Max len(obj.Prog.RestArgs) can be inferred from this to be 4.
const argListMax int = 6

type argList [argListMax]uint8

type ytab struct {
	zcase   uint8
	zoffset uint8

	// Last arg is usually destination.

		off := n - nbits // n > nbits because n > maxBits and nbits <= 7
		// Leading src fragment.
		src = subtractb(src, (off+7)/8)
		if frag := off & 7; frag != 0 {
			bits |= uintptr(*src) >> (8 - frag) << nbits
			src = add1(src)
			nbits += frag
			c -= frag
		}
		// Main loop: load one byte, write another.
		// The bits are rotating through the bit buffer.
		for i := c / 8; i > 0; i-- {

func crawl(url string, sourceURL string) {
	if strings.Contains(url, "/devel/release") {
		return
	}
	mu.Lock()
	defer mu.Unlock()
	if u, frag, ok := strings.Cut(url, "#"); ok {
		url = u
		if frag != "" {
			uf := urlFrag{url, frag}
			neededFrags[uf] = append(neededFrags[uf], sourceURL)
		}
	}
	if crawled[url] {
		return
	}
	crawled[url] = true

	wg.Add(1)
	go func() {

			i = LOG - 1
		}
		p.Forwd = nil
		dwn[i]--
		if dwn[i] <= 0 {
			dwn[i] = cnt[i]
			if lst[i] != nil {
				lst[i].Forwd = p
			}
			lst[i] = p
		}
	}
}

func Appendp(q *Prog, newprog ProgAlloc) *Prog {
	p := newprog()
	p.Link = q.Link
	q.Link = p
	p.Pos = q.Pos
	return p

		}
		if (p.From.Reg-obj.RBaseARM64)&REG_EXT != 0 ||
			(p.From.Reg >= REG_LSL && p.From.Reg < REG_ARNG) {
			amount := (p.From.Reg >> 5) & 7
			if amount > 4 {
				c.ctxt.Diag("shift amount out of range 0 to 4: %v", p)
			}
			o1 = c.opxrrr(p, p.As, rt, r, obj.REG_NONE, true)
			o1 |= c.encRegShiftOrExt(p, &p.From, p.From.Reg) /* includes reg, op, etc */
		} else {
			o1 = c.opxrrr(p, p.As, rt, r, rf, false)
		}

			prog.Inst[ix].Next = nil
			prog.Inst[ix] = onePassInst{Inst: instOriginal}
		}
	}
}

// onePassCopy creates a copy of the original Prog, as we'll be modifying it.
func onePassCopy(prog *syntax.Prog) *onePassProg {
	p := &onePassProg{
		Start:  prog.Start,
		NumCap: prog.NumCap,
		Inst:   make([]onePassInst, len(prog.Inst)),
	}
	for i, inst := range prog.Inst {
		p.Inst[i] = onePassInst{Inst: inst}
	}

	"os"
	"os/exec"
	"path/filepath"
	"testing"
)

// Issue 36021: verify that text/template doesn't prevent the linker from removing
// unused methods.
func TestLinkerGC(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}
	testenv.MustHaveGoBuild(t)
	const prog = `package main

import (
	_ "text/template"
)

type T struct{}

		switch p.As {
		case AGet:
			if p.From.Type == obj.TYPE_ADDR {
				get := *p
				p.As = obj.ANOP

				switch get.From.Name {
				case obj.NAME_EXTERN:
					p = appendp(p, AI64Const, get.From)
				case obj.NAME_AUTO, obj.NAME_PARAM:
					p = appendp(p, AGet, regAddr(get.From.Reg))
					if get.From.Reg == REG_SP {
						p = appendp(p, AI64ExtendI32U)
					}
					if get.From.Offset != 0 {

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

package obj

// go-specific code shared across loaders (5l, 6l, 8l).

func Nopout(p *Prog) {
	p.As = ANOP
	p.Scond = 0
	p.From = Addr{}
	p.RestArgs = nil
	p.Reg = 0
	p.To = Addr{}