(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.
(ADD (MOVDconst [m]) x) && supportsPPC64PCRel() && (m<<30)>>30 == m => (ADDconst [m] x)

		// If EH == 0, omit printing EH.
		eh := inst.Args[3].(Imm)
		if eh == 0 {
			argList = inst.Args[:3]
		}
		buf.WriteString(inst.Op.String())

	case "paddi":
		// There are several extended mnemonics.  Notably, "pla" is
		// the only valid mnemonic for paddi (R=1), In this case, RA must
		// always be 0.  Otherwise it is invalid.
		r := inst.Args[3].(Imm)
		ra := inst.Args[1].(Reg)
		str := opName
		if ra == R0 {

			break
		}
		if p.From.Offset&0xFFFF == 0 {
			// The constant can be added using ADDIS
			p.As = AADDIS
			p.From.Offset >>= 16
		} else if buildcfg.GOPPC64 >= 10 {
			// Let the assembler generate paddi for large constants.
			break
		} else if (p.From.Offset < -0x8000 && int64(int32(p.From.Offset)) == p.From.Offset) || (p.From.Offset > 0xFFFF && p.From.Offset < 0x7FFF8000) {

}

// The prefixable optab entry contains the pseudo-opcodes which generate relocations, or may generate
// a more efficient sequence of instructions if a prefixed version exists (ex. paddi instead of oris/ori/add).
//
// This table is meant to transform all sequences which might be TOC-relative into an equivalent PC-relative