return ((x << 5) & (0xfff << 5)) >> 5
}

// bitfield ops
// bfi
func bfi1(x, y uint64) uint64 {
	// arm64:"BFI\t[$]4, R[0-9]+, [$]12",-"LSL",-"LSR",-"AND"
	return ((x & 0xfff) << 4) | (y & 0xffffffffffff000f)
}

func bfi2(x, y uint64) uint64 {
	// arm64:"BFI\t[$]12, R[0-9]+, [$]40",-"LSL",-"LSR",-"AND"
	return (x << 24 >> 12) | (y & 0xfff0000000000fff)
}

// bfxil

	"ADDSW",
	"ADDW",
	"ADR",
	"ADRP",
	"AESD",
	"AESE",
	"AESIMC",
	"AESMC",
	"AND",
	"ANDS",
	"ANDSW",
	"ANDW",
	"ASR",
	"ASRW",
	"AT",
	"BCC",
	"BCS",
	"BEQ",
	"BFI",
	"BFIW",
	"BFM",
	"BFMW",
	"BFXIL",
	"BFXILW",
	"BGE",
	"BGT",
	"BHI",
	"BHS",
	"BIC",
	"BICS",
	"BICSW",
	"BICW",
	"BLE",
	"BLO",
	"BLS",
	"BLT",
	"BMI",
	"BNE",
	"BPL",

    assertTrue(bf2.mightContain(element2));

    assertTrue(bf1.isCompatible(bf2));
    bf1.putAll(bf2);
    assertTrue(bf1.mightContain(element1));
    assertTrue(bf1.mightContain(element2));
    assertFalse(bf2.mightContain(element1));
    assertTrue(bf2.mightContain(element2));
  }

  public void testPutAllDifferentSizes() {
    BloomFilter<Integer> bf1 = BloomFilter.create(Funnels.integerFunnel(), 1);

Examples:

	FMADDD F30, F20, F3, F29    <=>    fmadd d29, d3, d30, d20
	FNMSUBS F7, F25, F7, F22    <=>    fnmsub s22, s7, s7, s25

(4) BFI, BFXIL, SBFIZ, SBFX, UBFIZ, UBFX $<lsb>, <Rn>, $<width>, <Rd>

Examples:

	BFIW $16, R20, $6, R0      <=>    bfi w0, w20, #16, #6
	UBFIZ $34, R26, $5, R20    <=>    ubfiz x20, x26, #34, #5

(5) FCCMPD, FCCMPS, FCCMPED, FCCMPES <cond>, Fm. Fn, $<nzcv>

Examples:

// SameFile reports whether fi1 and fi2 describe the same file.
// For example, on Unix this means that the device and inode fields
// of the two underlying structures are identical; on other systems
// the decision may be based on the path names.
// SameFile only applies to results returned by this package's [Stat].
// It returns false in other cases.
func SameFile(fi1, fi2 FileInfo) bool {
	fs1, ok1 := fi1.(*fileStat)

	if !sameFile(outs, ep) {
		t.Fatalf("Child returned %q, not the same file as %q", out, ep)
	}
}

func sameFile(fn1, fn2 string) bool {
	fi1, err := os.Stat(fn1)
	if err != nil {
		return false
	}
	fi2, err := os.Stat(fn2)
	if err != nil {
		return false
	}
	return os.SameFile(fi1, fi2)
}

func init() {
	if e := os.Getenv(executable_EnvVar); e != "" {
		// first chdir to another path
		dir := "/"

		NumVersions:      1,
		Idx:              0,
	}

	tests := []struct {
		fi1, fi2 FileInfo
	}{
		{
			fi1: fi1,
			fi2: fi2,
		},
		{
			fi1: fi1,
			fi2: fiDel,
		},
	}
	for idx, test := range tests {
		var metaArr []FileInfo
		for i := 0; i < 12; i++ {
			fi := test.fi1
			if i%2 == 0 {
				fi = test.fi2
			}
			metaArr = append(metaArr, fi)
		}

		t.Errorf("Error creating tmp file: %v", err)
	}
	tmpFile := f.Name()
	f.Close()
	defer os.Remove(f.Name())
	fi1, err := os.Stat(tmpFile)
	if err != nil {
		t.Fatalf("Error Stat(): %v", err)
	}
	fi2, err := os.Stat(tmpFile)
	if err != nil {
		t.Fatalf("Error Stat(): %v", err)
	}
	if !SameFile(fi1, fi2) {
		t.Fatal("Expected the files to be same")
	}

	return io.CopyBuffer(dst, src, buf)
}

// SameFile returns if the files are same.
func SameFile(fi1, fi2 os.FileInfo) bool {
	if !os.SameFile(fi1, fi2) {
		return false
	}
	if !fi1.ModTime().Equal(fi2.ModTime()) {
		return false
	}
	if fi1.Mode() != fi2.Mode() {
		return false
	}
	return fi1.Size() == fi2.Size()
}

// DirectioAlignSize - DirectIO alignment needs to be 4K. Defined here as

func BenchmarkGetControllerOf(b *testing.B) {
	gvk := schema.GroupVersionKind{
		Group:   "group",
		Version: "v1",
		Kind:    "Kind",
	}
	obj1 := &metaObj{
		ObjectMeta: ObjectMeta{
			UID:  "9d0cdf8a-dedc-11e9-bf91-42010a800167",
			Name: "my-object",
		},
	}
	controllerRef := NewControllerRef(obj1, gvk)
	controllerRef2 := *controllerRef
	controllerRef2.Controller = nil
	obj2 := &metaObj{
		ObjectMeta: ObjectMeta{