case ppc64.ACMP, ppc64.ACMPU, ppc64.ACMPW, ppc64.ACMPWU, ppc64.AFCMPO, ppc64.AFCMPU:
		return true
	}
	return false
}

// IsPPC64NEG reports whether the op (as defined by an ppc64.A* constant) is
// one of the NEG-like instructions that require special handling.
func IsPPC64NEG(op obj.As) bool {
	switch op {
	case ppc64.AADDMECC, ppc64.AADDMEVCC, ppc64.AADDMEV, ppc64.AADDME,
		ppc64.AADDZECC, ppc64.AADDZEVCC, ppc64.AADDZEV, ppc64.AADDZE,

	}
	return z
}

func (z *Int) Int64() int64 {
	if !z.init {
		return 0
	}
	return int64(C.mpz_get_si(&z.i[0]))
}

// Neg sets z = -x and returns z.
func (z *Int) Neg(x *Int) *Int {
	x.doinit()
	z.doinit()
	C.mpz_neg(&z.i[0], &x.i[0])
	return z
}

// Abs sets z to the absolute value of x and returns z.
func (z *Int) Abs(x *Int) *Int {

	MOVB	X5, tls(SB)				// b70f00009b8f0f00b38f4f0023805f00

	// NOT pseudo-instruction
	NOT	X5					// 93c2f2ff
	NOT	X5, X6					// 13c3f2ff

	// NEG/NEGW pseudo-instructions
	NEG	X5					// b3025040
	NEG	X5, X6					// 33035040
	NEGW	X5					// bb025040
	NEGW	X5, X6					// 3b035040

	// This jumps to the second instruction in the function (the

	MODDU	R7, R8, R9            // a7a90000b90400b8b98700a7b904009a
	MODWU	R1, R2                // a7a90000b90400b2b99700a1b904002a
	MODWU	R1, R2, R3            // a7a90000b90400b2b99700a1b904003a
	NEG	R1                    // b9030011
	NEG	R1, R2                // b9030021
	NEGW	R1                    // b9130011
	NEGW	R1, R2                // b9130021
	FLOGR	R2, R2                // b9830022
	POPCNT	R3, R4                // b9e10043

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	CNTTZW R3,R4                    // 7c640434
	CNTTZWCC R3,R4                  // 7c640435
	CNTTZD R3,R4                    // 7c640474
	CNTTZDCC R3,R4                  // 7c640475
	NEG R3, R4                      // 7c8300d0
	NEGCC R3, R4                    // 7c8300d1
	NEGV R3, R4                     // 7c8304d0
	NEGVCC R3, R4                   // 7c8304d1

	BEQ 0(PC)                       // 41820000

	CMN	R7@>2, R5                                        // ERROR "unsupported shift operator"
	CMNW	R7@>2, R5                                        // ERROR "unsupported shift operator"
	NEG	R7@>2, R5                                        // ERROR "unsupported shift operator"
	NEGW	R7@>2, R5                                        // ERROR "unsupported shift operator"

			// prog.From is no address.
			prog.To = a[0]
		} else {
			prog.From = a[0]
			// prog.To is no address.
		}
		if p.arch.Family == sys.PPC64 && arch.IsPPC64NEG(op) {
			// NEG: From and To are both a[0].
			prog.To = a[0]
			prog.From = a[0]
			break
		}
	case 2:
		if p.arch.Family == sys.ARM {
			if arch.IsARMCMP(op) {
				prog.From = a[0]

		// truncations since PAX records are length-prefix strings instead
		// of NUL-terminated C-strings.
		file: "testdata/pax-nul-path.tar",
		err:  ErrHeader,
	}, {
		file: "testdata/neg-size.tar",
		err:  ErrHeader,
	}, {
		file: "testdata/issue10968.tar",
		err:  ErrHeader,
	}, {
		file: "testdata/issue11169.tar",
		err:  ErrHeader,
	}, {
		file: "testdata/issue12435.tar",