{name: "FABSD", argLength: 1, reg: fp11, asm: "FABSD", typ: "Float64"},                                                              // abs(arg0)
		{name: "FSGNJD", argLength: 2, reg: fp21, asm: "FSGNJD", typ: "Float64"},                                                            // copy sign of arg1 to arg0

	FCVTLUD.RUP F0, X5				// d33230c2
	FCVTLUD.RMM F0, X5				// d34230c2
	FCVTDWU X5, F0					// 538012d2
	FCVTDLU X5, F0					// 538032d2
	FCVTSD	F0, F1					// d3001040
	FCVTDS	F0, F1					// d3000042
	FSGNJD	F1, F0, F2				// 53011022
	FSGNJND	F1, F0, F2				// 53111022
	FSGNJXD	F1, F0, F2				// 53211022
	FMVXD	F0, X5					// d30200e2
	FMVDX	X5, F0					// 538002f2
	FMADDD	F1, F2, F3, F4				// 4382201a

(Neg(64|32|16|8) ...) => (NEG ...)
(Neg(64|32)F ...) => (FNEG(D|S) ...)

(Com(64|32|16|8) ...) => (NOT ...)


(Sqrt ...) => (FSQRTD ...)
(Sqrt32 ...) => (FSQRTS ...)

(Copysign ...) => (FSGNJD ...)

(Abs ...) => (FABSD ...)

(FMA ...) => (FMADDD ...)

(Min(64|32)F ...) => (LoweredFMIN(D|S) ...)
(Max(64|32)F ...) => (LoweredFMAX(D|S) ...)

// Sign and zero extension.