}
	}

	if needSuffix {
		switch inst.Op {
		case CMPXCHG8B, FLDCW, FNSTCW, FNSTSW, LDMXCSR, LLDT, LMSW, LTR, PCLMULQDQ,
			SETA, SETAE, SETB, SETBE, SETE, SETG, SETGE, SETL, SETLE, SETNE, SETNO, SETNP, SETNS, SETO, SETP, SETS,
			SLDT, SMSW, STMXCSR, STR, VERR, VERW:
			// For various reasons, libopcodes emits no suffix for these instructions.

		case CRC32:
			op += byteSizeSuffix(argBytes(&inst, inst.Args[1]))

	SETL:            "SETL",
	SETLE:           "SETLE",
	SETNE:           "SETNE",
	SETNO:           "SETNO",
	SETNP:           "SETNP",
	SETNS:           "SETNS",
	SETO:            "SETO",
	SETP:            "SETP",
	SETS:            "SETS",
	SFENCE:          "SFENCE",
	SGDT:            "SGDT",
	SHL:             "SHL",
	SHLD:            "SHLD",
	SHR:             "SHR",
	SHRD:            "SHRD",