// match: (CSEL [cc] x (NEG a) flag)
	// result: (CSNEG [cc] x a flag)
	for {
		cc := auxIntToOp(v.AuxInt)
		x := v_0
		if v_1.Op != OpARM64NEG {
			break
		}
		a := v_1.Args[0]
		flag := v_2
		v.reset(OpARM64CSNEG)
		v.AuxInt = opToAuxInt(cc)
		v.AddArg3(x, a, flag)
		return true
	}
	// match: (CSEL [cc] (NEG a) x flag)
	// result: (CSNEG [arm64Negate(cc)] x a flag)
	for {