wantErr   string
	}{
		{
			desc: "GetStructItem",
			nodeYAML: `
a: va
b: vb
c:
  d: vd
  e:
    f: vf
g:
  h:
  - i: vi
    j: vj
    k:
      l:
        m: vm
        n: vn
`,
			path: "c",
			wantYAML: `
d: vd
e:
  f: vf
`,
			wantFound: true,
		},
		{
			desc: "GetSliceEntryItem",
			nodeYAML: `
a: va
b: vb
c:
  d: vd
  e:
    f: vf
g:

	"LPT7",
	"LPT8",
	"LPT9",
}

// SplitPathVersion returns prefix and major version such that prefix+pathMajor == path
// and version is either empty or "/vN" for N >= 2.
// As a special case, gopkg.in paths are recognized directly;
// they require ".vN" instead of "/vN", and for all N, not just N >= 2.
// SplitPathVersion returns with ok = false when presented with
// a path whose last path element does not satisfy the constraints

func initNorm() (testKn []uint32, testWn, testFn []float32) {
	const m1 = 1 << 31
	var (
		dn float64 = rn
		tn         = dn
		vn float64 = 9.91256303526217e-3
	)

	testKn = make([]uint32, 128)
	testWn = make([]float32, 128)
	testFn = make([]float32, 128)

	q := vn / math.Exp(-0.5*dn*dn)
	testKn[0] = uint32((dn / q) * m1)
	testKn[1] = 0
	testWn[0] = float32(q / m1)
	testWn[127] = float32(dn / m1)

func initNorm() (testKn []uint32, testWn, testFn []float32) {
	const m1 = 1 << 31
	var (
		dn float64 = rn
		tn         = dn
		vn float64 = 9.91256303526217e-3
	)

	testKn = make([]uint32, 128)
	testWn = make([]float32, 128)
	testFn = make([]float32, 128)

	q := vn / math.Exp(-0.5*dn*dn)
	testKn[0] = uint32((dn / q) * m1)
	testKn[1] = 0
	testWn[0] = float32(q / m1)
	testWn[127] = float32(dn / m1)

lUeEGJLQ8kahtBlGb28gQmFyIDxmb29AZXhhbXBsZS5jb20+iQFUBBMBCAA+FiEE
QtS6pb0ASq/RhzRI/Urkj6otOZIFAlxb6KECGwMFCQPCZwAFCwkIBwIGFQoJCAsC
BBYCAwECHgECF4AACgkQ/Urkj6otOZJHhAf+MrWpiWDGsu9yW0lbln7FQpXvhNim
mO4aykYcLRnttr4fbbTaTiq1S+Vn/5/zmcfkGnjdCM5RCO/nZA1mcXpg8pmd+emX
SS72owHVDq1we2QD+/WQljUDY4Qdf0AxqPQm+ARGWC2RwgNA6CSH3Q72fE2por5H
FXti3kjq79NRt8OG+iUZ7W00/v//wzVkQw4m3iTjy2G1Ih8tPEkxEjKoNTfXUNMP
TIHLAdo5/mwj/4M1aK3DeSQkdJtkK2RUTUghrOTZus1Gu+5jJjCbjJp7W1Gl5qsZ

	"KMCTR",
	"VA",
	"VAB",
	"VAH",
	"VAF",
	"VAG",
	"VAQ",
	"VACC",
	"VACCB",
	"VACCH",
	"VACCF",
	"VACCG",
	"VACCQ",
	"VAC",
	"VACQ",
	"VACCC",
	"VACCCQ",
	"VN",
	"VNC",
	"VAVG",
	"VAVGB",
	"VAVGH",
	"VAVGF",
	"VAVGG",
	"VAVGL",
	"VAVGLB",
	"VAVGLH",
	"VAVGLF",
	"VAVGLG",
	"VCKSM",
	"VCEQ",
	"VCEQB",
	"VCEQH",
	"VCEQF",

	codeDir string

	// pathMajor is the suffix of modPath that indicates its major version,
	// or the empty string if modPath is at major version 0 or 1.
	//
	// pathMajor is typically of the form "/vN", but possibly ".vN", or
	// ".vN-unstable" for modules resolved using gopkg.in.
	pathMajor string
	// pathPrefix is the prefix of modPath that excludes pathMajor.
	// It is used only for logging.
	pathPrefix string

	R13: TLS pointer
	R30: g (goroutine)

Register names:

	Rn is used for general purpose registers. (0-31)
	Fn is used for floating point registers. (0-31)
	Vn is used for vector registers. Slot 0 of Vn overlaps with Fn. (0-31)
	VSn is used for vector-scalar registers. V0-V31 overlap with VS32-VS63. (0-63)
	CTR represents the count register.
	LR represents the link register.

lUeEGJLQ8kahtBlGb28gQmFyIDxmb29AZXhhbXBsZS5jb20+iQFUBBMBCAA+FiEE
QtS6pb0ASq/RhzRI/Urkj6otOZIFAlxb6KECGwMFCQPCZwAFCwkIBwIGFQoJCAsC
BBYCAwECHgECF4AACgkQ/Urkj6otOZJHhAf+MrWpiWDGsu9yW0lbln7FQpXvhNim
mO4aykYcLRnttr4fbbTaTiq1S+Vn/5/zmcfkGnjdCM5RCO/nZA1mcXpg8pmd+emX
SS72owHVDq1we2QD+/WQljUDY4Qdf0AxqPQm+ARGWC2RwgNA6CSH3Q72fE2por5H
FXti3kjq79NRt8OG+iUZ7W00/v//wzVkQw4m3iTjy2G1Ih8tPEkxEjKoNTfXUNMP
TIHLAdo5/mwj/4M1aK3DeSQkdJtkK2RUTUghrOTZus1Gu+5jJjCbjJp7W1Gl5qsZ

func isPPC64DoublewordRotateMask(v64 int64) bool {
	// Isolate rightmost 1 (if none 0) and add.
	v := uint64(v64)
	vp := (v & -v) + v
	// Likewise, for the wrapping case.
	vn := ^v
	vpn := (vn & -vn) + vn
	return (v&vp == 0 || vn&vpn == 0) && v != 0
}

// Encode a doubleword rotate mask into mb (mask begin) and
// me (mask end, inclusive). Note, POWER ISA labels bits in
// big endian order.