adjustframe(&u.frame, &adjinfo)
	}

	// free old stack
	if stackPoisonCopy != 0 {
		fillstack(old, 0xfc)
	}
	stackfree(old)
}

// round x up to a power of 2.
func round2(x int32) int32 {
	s := uint(0)
	for 1<<s < x {
		s++
	}
	return 1 << s
}

// Called from runtime·morestack when more stack is needed.

	// Round to integer, float64 only.
	// Special cases:
	//   ±∞  → ±∞ (sign preserved)
	//   ±0  → ±0 (sign preserved)
	//   NaN → NaN
	{name: "Floor", argLength: 1},       // round arg0 toward -∞
	{name: "Ceil", argLength: 1},        // round arg0 toward +∞
	{name: "Trunc", argLength: 1},       // round arg0 toward 0

				break
			}
		}
	}
}

// Issue 8410
func TestMapSparseIterOrder(t *testing.T) {
	// Run several rounds to increase the probability
	// of failure. One is not enough.
NextRound:
	for round := 0; round < 10; round++ {
		m := make(map[int]bool)
		// Add 1000 items, remove 980.
		for i := 0; i < 1000; i++ {
			m[i] = true
		}
		for i := 20; i < 1000; i++ {

	}
	if x.prec == 0 {
		return "zero precision finite number"
	}
	return ""
}

// round rounds z according to z.mode to z.prec bits and sets z.acc accordingly.
// sbit must be 0 or 1 and summarizes any "sticky bit" information one might
// have before calling round. z's mantissa must be normalized (with the msb set)
// or empty.
//

			t.Error(tc.filename, err)
			continue
		}
		m1, err := Decode(&buf)
		if err != nil {
			t.Error(tc.filename, err)
			continue
		}
		if m0.Bounds() != m1.Bounds() {
			t.Errorf("%s, bounds differ: %v and %v", tc.filename, m0.Bounds(), m1.Bounds())
			continue
		}
		// Compare the average delta to the tolerance level.
		avgDelta := averageDelta(m0, m1)
		if avgDelta > tc.tolerance {

	boundsSliceAlen:  "slice bounds out of range [:%x]",
	boundsSliceAcap:  "slice bounds out of range [:%x]",
	boundsSliceB:     "slice bounds out of range [%x:]",
	boundsSlice3Alen: "slice bounds out of range [::%x]",
	boundsSlice3Acap: "slice bounds out of range [::%x]",
	boundsSlice3B:    "slice bounds out of range [:%x:]",
	boundsSlice3C:    "slice bounds out of range [%x::]",
}

			t.Errorf("%s: %v", tc+".progressive.jpeg", err)
			continue
		}
		if m0.Bounds() != m1.Bounds() {
			t.Errorf("%s: bounds differ: %v and %v", tc, m0.Bounds(), m1.Bounds())
			continue
		}
		// All of the video-*.jpeg files are 150x103.
		if m0.Bounds() != image.Rect(0, 0, 150, 103) {
			t.Errorf("%s: bad bounds: %v", tc, m0.Bounds())
			continue
		}

		switch m0 := m0.(type) {
		case *image.YCbCr:

   * Returns {@code ? extends X} if any of {@code bounds} is a subtype of {@code X[]}; or null
   * otherwise.
   */
  @CheckForNull
  private static Type subtypeOfComponentType(Type[] bounds) {
    for (Type bound : bounds) {
      Type componentType = getComponentType(bound);
      if (componentType != null) {
        // Only the first bound can be a class or array.
        // Bounds after the first can only be interfaces.

	copy(gif, testGIF)
	// Make the bounds too big, just by one.
	gif[32] = 2
	want := "gif: frame bounds larger than image bounds"
	try(t, gif, want)

	// Make the bounds too small; does not trigger bounds
	// check, but now there's too much data.
	gif[32] = 0
	want = "gif: too much image data"
	try(t, gif, want)
	gif[32] = 1

	// Make the bounds really big, expect an error.

   * Returns {@code ? extends X} if any of {@code bounds} is a subtype of {@code X[]}; or null
   * otherwise.
   */
  @CheckForNull
  private static Type subtypeOfComponentType(Type[] bounds) {
    for (Type bound : bounds) {
      Type componentType = getComponentType(bound);
      if (componentType != null) {
        // Only the first bound can be a class or array.
        // Bounds after the first can only be interfaces.