Data: unsafe.Pointer(&b[0]),
		Len:  n,
		Cap:  cap(b) * int(scale),
	}
	return *(*[]bool)(unsafe.Pointer(&s))
}
func (c *Cache) freeBoolSlice(s []bool) {
	var base int64
	var derived bool
	scale := unsafe.Sizeof(base) / unsafe.Sizeof(derived)
	b := unsafeheader.Slice{
		Data: unsafe.Pointer(&s[0]),
		Len:  int((uintptr(len(s)) + scale - 1) / scale),
		Cap:  int((uintptr(cap(s)) + scale - 1) / scale),

// simultaneously, but each returned reader will be used only by
// one goroutine at a time.
type Decompressor func(r io.Reader) io.ReadCloser

var flateWriterPool sync.Pool

func newFlateWriter(w io.Writer) io.WriteCloser {
	fw, ok := flateWriterPool.Get().(*flate.Writer)
	if ok {
		fw.Reset(w)
	} else {
		fw, _ = flate.NewWriter(w, 5)
	}
	return &pooledFlateWriter{fw: fw}
}

	TFLOAT32:    "float32",
	TFLOAT64:    "float64",
	TCOMPLEX64:  "complex64",
	TCOMPLEX128: "complex128",
	TBOOL:       "bool",
	TANY:        "any",
	TSTRING:     "string",
	TNIL:        "nil",
	TIDEAL:      "untyped number",
	TBLANK:      "blank",
}

var fmtBufferPool = sync.Pool{
	New: func() interface{} {
		return new(bytes.Buffer)
	},
}

// Format implements formatting for a Type.

var CmdTool = &base.Command{
	Run:       runTool,
	UsageLine: "go tool [-n] command [args...]",
	Short:     "run specified go tool",
	Long: `
Tool runs the go tool command identified by the arguments.
With no arguments it prints the list of known tools.

The -n flag causes tool to print the command that would be
executed but not execute it.

For more about each tool command, see 'go doc cmd/<command>'.
`,
}

var toolN bool

		// For DIVL, DIVW, MODL and MODW, AuxInt non-zero means that the divisor has been proved to be not -1.
		{name: "DIVL", argLength: 2, reg: gp11div, asm: "IDIVL", aux: "Bool", clobberFlags: true}, // arg0 / arg1
		{name: "DIVW", argLength: 2, reg: gp11div, asm: "IDIVW", aux: "Bool", clobberFlags: true}, // arg0 / arg1
		{name: "DIVLU", argLength: 2, reg: gp11div, asm: "DIVL", clobberFlags: true},              // arg0 / arg1

func VetAnalyzers() ([]string, error) {
	// get supported vet flag information
	tool := base.Tool("vet")
	vetcmd := exec.Command(tool, "-flags")
	out := new(bytes.Buffer)
	vetcmd.Stdout = out
	if err := vetcmd.Run(); err != nil {
		return nil, fmt.Errorf("go vet: can't execute %s -flags: %v\n", tool, err)
	}
	var analysisFlags []struct {
		Name  string
		Bool  bool
		Usage string
	}

		return +1
	}

	pline := p.Line()
	qline := q.Line()
	switch {
	case pline < qline:
		return -1
	case pline > qline:
		return +1
	}

	pcol := p.Col()
	qcol := q.Col()
	switch {
	case pcol < qcol:
		return -1
	case pcol > qcol:
		return +1
	}

	return 0
}

func (pos Pos) String() string {
	rel := position_{pos.RelFilename(), pos.RelLine(), pos.RelCol()}

	}
	testCases = append(testCases, t...)
}

func fnop(*ast.File) bool { return false }

func parseFixPrint(t *testing.T, fn func(*ast.File) bool, desc, in string, mustBeGofmt bool) (out string, fixed, ok bool) {
	file, err := parser.ParseFile(fset, desc, in, parserMode)
	if err != nil {
		t.Errorf("parsing: %v", err)
		return
	}

	outb, err := gofmtFile(file)
	if err != nil {
		t.Errorf("printing: %v", err)
		return
	}

	flagCache          map[[2]string]bool        // a cache of supported compiler flags
	gccCompilerIDCache map[string]cache.ActionID // cache for gccCompilerID

	IsCmdList           bool // running as part of go list; set p.Stale and additional fields below
	NeedError           bool // list needs p.Error
	NeedExport          bool // list needs p.Export
	NeedCompiledGoFiles bool // list needs p.CompiledGoFiles

func OnceCondition(summary string, eval func() (bool, error)) Cond {
	return &onceCond{eval: eval, usage: CondUsage{Summary: summary}}
}

type onceCond struct {
	once  sync.Once
	v     bool
	err   error
	eval  func() (bool, error)
	usage CondUsage
}

func (l *onceCond) Usage() *CondUsage { return &l.usage }

func (l *onceCond) Eval(s *State, suffix string) (bool, error) {
	if suffix != "" {