}

	// This code assumes that d.r strips supported whitespace ('\r' and '\n').

	// Refill buffer.
	for d.nbuf < 4 && d.readErr == nil {
		nn := len(p) / 3 * 4
		if nn < 4 {
			nn = 4
		}
		if nn > len(d.buf) {
			nn = len(d.buf)
		}
		nn, d.readErr = d.r.Read(d.buf[d.nbuf:nn])
		d.nbuf += nn
	}

	if d.nbuf < 4 {
		if d.enc.padChar == NoPadding && d.nbuf > 0 {

func xremoveall(p string) {
	if vflag > 2 {
		errprintf("rm -r %s\n", p)
	}
	os.RemoveAll(p)
}

// xreaddir replaces dst with a list of the names of the files and subdirectories in dir.
// The names are relative to dir; they are not full paths.
func xreaddir(dir string) []string {
	f, err := os.Open(dir)
	if err != nil {
		fatalf("%v", err)
	}
	defer f.Close()

		// error is returned.
		{r: badReader{data: []byte("MY====="), errs: []error{badErr}},
			res: "", err: badErr},
		// Reader returns invalid input data (too short) but no error.  Verify io.ErrUnexpectedEOF
		// is returned.
		{r: badReader{data: []byte("MY====="), errs: []error{nil}},
			res: "", err: io.ErrUnexpectedEOF},
		// Reader returns invalid input data and an error.  Verify the reader and not the

	repeats     uint     // the number of copies of lastByte to output.
}

// NewReader returns an io.Reader which decompresses bzip2 data from r.
// If r does not also implement [io.ByteReader],
// the decompressor may read more data than necessary from r.
func NewReader(r io.Reader) io.Reader {
	bz2 := new(reader)
	bz2.br = newBitReader(r)
	return bz2
}

const bzip2FileMagic = 0x425a // "BZ"

	diffStats := getDiffStats(latestStats, currentStats)

	updateResourceMetrics(driveSubsystem, readsPerSec, float64(diffStats.ReadIOs)/diffInSeconds, labels, false)
	readKib := float64(diffStats.ReadSectors*sectorSize) / kib
	updateResourceMetrics(driveSubsystem, readsKBPerSec, readKib/diffInSeconds, labels, false)

	updateResourceMetrics(driveSubsystem, writesPerSec, float64(diffStats.WriteIOs)/diffInSeconds, labels, false)

	//
	// If the requested file does not exist it should return an error for which
	// os.IsNotExist(err) returns true.
	ReadFile(ctx context.Context, rev, file string, maxSize int64) (data []byte, err error)

	// ReadZip downloads a zip file for the subdir subdirectory
	// of the given revision to a new file in a given temporary directory.
	// It should refuse to read more than maxSize bytes.

// it in our own nicer implementation, either here or in
// syscall_bsd.go or syscall_unix.go.

package unix

import (
	"fmt"
	"syscall"
	"unsafe"
)

//sys	closedir(dir uintptr) (err error)
//sys	readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno)

func fdopendir(fd int) (dir uintptr, err error) {
	r0, _, e1 := syscall_syscallPtr(libc_fdopendir_trampoline_addr, uintptr(fd), 0, 0)
	dir = uintptr(r0)
	if e1 != 0 {

        sourceAdded(file3, [dep4])
        modified(dep4)

        then:
        checkCompile recompiled: [source2, file3], removed: []
    }

    def "detects source file removed then readded"() {
        given:
        initialFiles()

        when:
        sourceRemoved(source2)
        graph.remove(dep4)

        then:
        checkCompile recompiled: [], removed: [source2]

			}
		case "IfNoneMatch":
			z.IfNoneMatch, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "IfNoneMatch")
				return
			}
		case "IfModifiedSince":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "IfModifiedSince")
					return
				}
				z.IfModifiedSince = nil
			} else {
				if z.IfModifiedSince == nil {
					z.IfModifiedSince = new(time.Time)
				}

    $num_bits, $range_given, $round_mode, $narrow_range, $axis),
  [], [(CopyAttrs $src, $dest)]>;

//===----------------------------------------------------------------------===//
// RealDiv op patterns.
//===----------------------------------------------------------------------===//

def RealDivWithSqrtDivisor : Pat<
  (TF_RealDivOp:$src $arg0, (TF_SqrtOp $arg1)),