# dependencies through older versions of the main module.

go list -f '{{with .Module}}{{.Path}}{{with .Version}} {{.}}{{end}}{{end}}' all
cmp stdout pkgmods.txt

go list -m all
cmp stdout mods.txt

go mod graph
cmp stdout graph.txt

-- go.mod --
module golang.org/issue/root

go 1.12

replace (
	golang.org/issue/mirror v0.1.0 => ./mirror-v0.1.0
	golang.org/issue/pkg v0.1.0 => ./pkg-v0.1.0

	sem := make(chan token, runtime.GOMAXPROCS(0))

	mg, err := modload.LoadModGraph(ctx, "")
	if err != nil {
		base.Fatal(err)
	}
	mods := mg.BuildList()
	// Use a slice of result channels, so that the output is deterministic.
	errsChans := make([]<-chan []error, len(mods))

	for i, mod := range mods {
		sem <- token{}
		errsc := make(chan []error, 1)
		errsChans[i] = errsc
		mod := mod // use a copy to avoid data races
		go func() {

		return OPVCC(31, 1014, 0, 0)

	case AMODUD:
		return OPVCC(31, 265, 0, 0) /* modud - v3.0 */
	case AMODUW:
		return OPVCC(31, 267, 0, 0) /* moduw - v3.0 */
	case AMODSD:
		return OPVCC(31, 777, 0, 0) /* modsd - v3.0 */
	case AMODSW:
		return OPVCC(31, 779, 0, 0) /* modsw - v3.0 */

	case ADIVW, AREM:
		return OPVCC(31, 491, 0, 0)

	case ADIVWCC:
		return OPVCC(31, 491, 0, 1)

	case ADIVWV:

			// Nothing to download.
			continue
		}
		m := &ModuleJSON{
			Path:    info.Path,
			Version: info.Version,
			Query:   info.Query,
			Reuse:   info.Reuse,
			Origin:  info.Origin,
		}
		mods = append(mods, m)
		if info.Error != nil {
			m.Error = info.Error.Err
			continue
		}
		if m.Reuse {
			continue
		}
		sem <- token{}
		go func() {
			err := DownloadModule(ctx, m)

	"LEAVEW",
	"LEAW",
	"LFENCE",
	"LFSL",
	"LFSQ",
	"LFSW",
	"LGDT",
	"LGSL",
	"LGSQ",
	"LGSW",
	"LIDT",
	"LLDT",
	"LMSW",
	"LOCK",
	"LODSB",
	"LODSL",
	"LODSQ",
	"LODSW",
	"LONG",
	"LOOP",
	"LOOPEQ",
	"LOOPNE",
	"LSLL",
	"LSLQ",
	"LSLW",
	"LSSL",
	"LSSQ",
	"LSSW",
	"LTR",
	"LZCNTL",
	"LZCNTQ",
	"LZCNTW",
	"MASKMOVOU",
	"MASKMOVQ",

	}

	if *whyM {
		for _, arg := range args {
			if strings.Contains(arg, "@") {
				base.Fatalf("go: %s: 'go mod why' requires a module path, not a version query", arg)
			}
		}

		mods, err := modload.ListModules(ctx, args, 0, "")
		if err != nil {
			base.Fatal(err)
		}

		byModule := make(map[string][]string)
		_, pkgs := modload.LoadPackages(ctx, loadOpts, "all")
		for _, path := range pkgs {

	}

	const primesA = 3 * 5 * 7 * 11 * 13 * 17 * 19 * 23 * 37
	const primesB = 29 * 31 * 41 * 43 * 47 * 53

	var rA, rB uint32
	switch _W {
	case 32:
		rA = uint32(x.abs.modW(primesA))
		rB = uint32(x.abs.modW(primesB))
	case 64:
		r := x.abs.modW((primesA * primesB) & _M)
		rA = uint32(r % primesA)
		rB = uint32(r % primesB)
	default:
		panic("math/big: invalid word size")
	}

		inst.Args[1] = Mem{Segment: ES, Base: baseRegForBits(addrMode) + DI - AX}
		usedAddrSize = true

	case LODSB, LODSW, LODSD, LODSQ:
		switch inst.Op {
		case LODSB:
			inst.Args[0] = AL
		case LODSW:
			inst.Args[0] = AX
		case LODSD:
			inst.Args[0] = EAX
		case LODSQ:
			inst.Args[0] = RAX
		}

# 'go list -m <mods> all' should also fail.
! go list -m example.com/printversion@v1.0.0 all
stderr 'go: cannot match "all": go.mod file not found in current directory or any parent directory; see ''go help modules''$'
! stdout 'example.com/version'

# 'go list -m <mods>' should fail if any of the mods lacks an explicit version.
! go list -m example.com/printversion

		// TODO(#57001): Do we need a toolchain.SwitchOrFatal here,
		// and do we need to pass a toolchain.Switcher in LoadPackages?
		// If so, think about saving the WriteGoMods for after the loop,
		// so we don't write some go.mods with the "before" toolchain
		// and others with the "after" toolchain. If nothing else, that
		// discrepancy could show up in auto-recorded toolchain lines.
		changed, err := modload.EditBuildList(ctx, nil, mustSelectFor[m])