"SO",
}

// plan9OpMap maps an Op to its Plan 9 mnemonics, if different than its GNU mnemonics.
var plan9OpMap = map[Op]string{
	LWARX:     "LWAR",
	LDARX:     "LDAR",
	LHARX:     "LHAR",
	LBARX:     "LBAR",
	LWAX:      "MOVW",
	LHAX:      "MOVH",
	LWAUX:     "MOVWU",
	LHAU:      "MOVHU",
	LHAUX:     "MOVHU",
	LDX:       "MOVD",
	LDUX:      "MOVDU",
	LWZX:      "MOVWZ",
	LWZUX:     "MOVWZU",

		// atomic 8/32 and/or.
		// *arg0 &= (|=) arg1. arg2=mem. returns memory. auxint must be zero.
		// LBAR/LWAT	(Rarg0), Rtmp
		// AND/OR	Rarg1, Rtmp
		// STBCCC/STWCCC Rtmp, (Rarg0), Rtmp
		// BNE		Rtmp, -3(PC)
		{name: "LoweredAtomicAnd8", argLength: 3, reg: gpstore, asm: "AND", faultOnNilArg0: true, hasSideEffects: true},