VNEGW:          "vnegw",
	VPERMR:         "vpermr",
	VPRTYBD:        "vprtybd",
	VPRTYBQ:        "vprtybq",
	VPRTYBW:        "vprtybw",
	VRLDMI:         "vrldmi",
	VRLDNM:         "vrldnm",
	VRLWMI:         "vrlwmi",
	VRLWNM:         "vrlwnm",
	VSLV:           "vslv",
	VSRV:           "vsrv",
	WAIT:           "wait",
	XSABSQP:        "xsabsqp",
	XSADDQP:        "xsaddqp",
	XSADDQPO:       "xsaddqpo",

	a[1] = a[uint8(v>>25)]
	// ppc64x: -"CLRLSLDI", "RLWNM\t[$]9, R[0-9]+, [$]23, [$]29, R[0-9]+"
	a[2] = a[v>>25&0x7F]
	// ppc64x: -"CLRLSLDI", "RLWNM\t[$]3, R[0-9]+, [$]29, [$]29, R[0-9]+"
	a[3] = a[(v>>31)&0x01]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[4] = a[(v>>30)&0x07]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[5] = a[(v>>32)&0x01]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[6] = a[(v>>34)&0x03]

	i := 0

	// ppc64x: "RLWNM\t[$]16, R[0-9]+, [$]8, [$]15, R[0-9]+"
	a[i] = bits.RotateLeft32(a[i], 16) & 0xFF0000
	i++
	// ppc64x: "RLWNM\t[$]16, R[0-9]+, [$]8, [$]15, R[0-9]+"
	a[i] = bits.RotateLeft32(a[i]&0xFF, 16)
	i++
	// ppc64x: "RLWNM\t[$]4, R[0-9]+, [$]20, [$]27, R[0-9]+"
	a[i] = bits.RotateLeft32(a[i], 4) & 0xFF0
	i++
	// ppc64x: "RLWNM\t[$]16, R[0-9]+, [$]24, [$]31, R[0-9]+"

	"NANDCC",
	"NEG",
	"NEGCC",
	"NEGVCC",
	"NEGV",
	"NOR",
	"NORCC",
	"OR",
	"ORCC",
	"ORN",
	"ORNCC",
	"ORIS",
	"REM",
	"REMU",
	"RFI",
	"RLWMI",
	"RLWMICC",
	"RLWNM",
	"RLWNMCC",
	"CLRLSLWI",
	"SLW",
	"SLWCC",
	"SRW",
	"SRAW",
	"SRAWCC",
	"SRWCC",
	"STBCCC",
	"STHCCC",
	"STSW",
	"STWCCC",
	"SUB",
	"SUBCC",
	"SUBVCC",
	"SUBC",

(SLDconst [s] (RLWINM [r] y)) && mergePPC64SldiRlwinm(s,r) != 0 => (RLWINM [mergePPC64SldiRlwinm(s,r)] y)
(RLWINM [r] (MOVHZreg u)) && mergePPC64RlwinmAnd(r,0xFFFF) != 0 => (RLWINM [mergePPC64RlwinmAnd(r,0xFFFF)] u)
(RLWINM [r] (ANDconst [a] u)) && mergePPC64RlwinmAnd(r,uint32(a)) != 0 => (RLWINM [mergePPC64RlwinmAnd(r,uint32(a))] u)

	RLWMICC $7, R3, $16, $31, R6    // 50663c3f
	RLWNM $3, R4, $7, R6            // 54861f7e
	RLWNM $0, R4, $7, R6            // 5486077e
	RLWNM R0, R4, $7, R6            // 5c86077e
	RLWNM $3, R4, $29, $31, R6      // 54861f7e
	RLWNM $0, R4, $29, $31, R6      // 5486077e
	RLWNM R0, R4, $29, $31, R6      // 5c86077e
	RLWNM R3, R4, $7, R6            // 5c861f7e
	RLWNM R3, R4, $29, $31, R6      // 5c861f7e

	io64[3] = (io64[3] >> 28) & 0x0000FFFFFFFFFFFF

	// ppc64x: "MOVWZ", "RLWNM\t[$]1, R[0-9]*, [$]28, [$]3, R"
	io64[4] = uint64(bits.RotateLeft32(io32[0], 1) & 0xF000000F)

	// ppc64x: "RLWNM\t[$]0, R[0-9]*, [$]4, [$]19, R"
	io32[0] = io32[0] & 0x0FFFF000
	// ppc64x: "RLWNM\t[$]0, R[0-9]*, [$]20, [$]3, R"
	io32[1] = io32[1] & 0xF0000FFF
	// ppc64x: -"RLWNM", MOVD, AND
	io32[2] = io32[2] & 0xFFFF0002

		{name: "RLWINM", argLength: 1, reg: gp11, asm: "RLWNM", aux: "Int64"},                           // Rotate and mask by immediate "rlwinm". encodePPC64RotateMask describes aux
		{name: "RLWNM", argLength: 2, reg: gp21, asm: "RLWNM", aux: "Int64"},                            // Rotate and mask by "rlwnm". encodePPC64RotateMask describes aux

// Combine (ANDconst [m] (SRWconst [s])) into (RLWINM [y]) or return 0
func mergePPC64AndSrwi(m, s int64) int64 {
	mask := mergePPC64RShiftMask(m, s, 32)
	if !isPPC64WordRotateMask(mask) {
		return 0
	}
	return encodePPC64RotateMask((32-s)&31, mask, 32)
}

// Test if a word shift right feeding into a CLRLSLDI can be merged into RLWINM.
// Return the encoded RLWINM constant, or 0 if they cannot be merged.

(RLDICL [em] x:(SRDconst [s] a)) && (em&0xFF0000) == 0 => (RLDICL [mergePPC64RLDICLandSRDconst(em, s)] a)

// Convert rotated 32 bit masks on 32 bit values into rlwinm. In general, this leaves the upper 32 bits in an undefined state.
(AND <t> x:(MOVDconst [m]) n) && t.Size() == 4 && isPPC64WordRotateMask(m) => (RLWINM [encodePPC64RotateMask(0,m,32)] n)

// When PCRel is supported, paddi can add a 34b signed constant in one instruction.