return op + " " + args[0] + "," + args[1]

	case STXVL, STXVLL:
		return op + " " + args[0] + "," + args[1] + "," + args[2]

	case LWAX, LWAUX, LWZX, LHZX, LBZX, LDX, LHAX, LHAUX, LDARX, LWARX, LHARX, LBARX, LFDX, LFDUX, LFSX, LFSUX, LDBRX, LWBRX, LHBRX, LDUX, LWZUX, LHZUX, LBZUX:
		if args[1] == "0" {
			return op + " (" + args[2] + ")," + args[0]
		}
		return op + " (" + args[2] + ")(" + args[1] + ")," + args[0]

	case STH, STHU, STHX, STHUX:
		return true
	case STW, STWU, STWX, STWUX:
		return true
	case STD, STDU, STDX, STDUX:
		return true
	case STQ:
		return true
	case LHBRX, LWBRX, STHBRX, STWBRX:
		return true
	case LBARX, LWARX, LHARX, LDARX:
		return true
	}
	return false

	LHAU:           "lhau",
	LHAUX:          "lhaux",
	LHAX:           "lhax",
	LHBRX:          "lhbrx",
	LHZ:            "lhz",
	LHZU:           "lhzu",
	LHZUX:          "lhzux",
	LHZX:           "lhzx",
	LMW:            "lmw",
	LSWI:           "lswi",
	LSWX:           "lswx",
	LWBRX:          "lwbrx",
	LWZ:            "lwz",
	LWZU:           "lwzu",
	LWZUX:          "lwzux",

		return OPVCC(31, 343, 0, 0) /* lhax */
	case AMOVHU:
		return OPVCC(31, 375, 0, 0) /* lhaux */
	case AMOVHBR:
		return OPVCC(31, 790, 0, 0) /* lhbrx */
	case AMOVWBR:
		return OPVCC(31, 534, 0, 0) /* lwbrx */
	case AMOVDBR:
		return OPVCC(31, 532, 0, 0) /* ldbrx */
	case AMOVHZ:
		return OPVCC(31, 279, 0, 0) /* lhzx */
	case AMOVHZU:
		return OPVCC(31, 311, 0, 0) /* lhzux */
	case ALBAR:

	}
	p := &Profile{}
	if err := unmarshal(data, p); err != nil {
		return nil, err
	}

	if err := p.postDecode(); err != nil {
		return nil, err
	}

	return p, nil
}

var libRx = regexp.MustCompile(`([.]so$|[.]so[._][0-9]+)`)

// massageMappings applies heuristic-based changes to the profile
// mappings to account for quirks of some environments.
func (p *Profile) massageMappings() {