(NE (CMPconst [0] (GreaterEqual cc)) yes no) => (GE cc yes no)
(NE (CMPconst [0] (GreaterEqualU cc)) yes no) => (UGE cc yes no)

// Write barrier.
(WB ...) => (LoweredWB ...)

(PanicBounds [kind] x y mem) && boundsABI(kind) == 0 => (LoweredPanicBoundsA [kind] x y mem)
(PanicBounds [kind] x y mem) && boundsABI(kind) == 1 => (LoweredPanicBoundsB [kind] x y mem)

		nilCheck:       true,
		faultOnNilArg0: true,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 255}, // AX CX DX BX SP BP SI DI
			},
		},
	},
	{
		name:         "LoweredWB",
		auxType:      auxInt64,
		argLen:       1,
		clobberFlags: true,
		reg: regInfo{
			clobbers: 65280, // X0 X1 X2 X3 X4 X5 X6 X7
			outputs: []outputInfo{
				{0, 128}, // DI
			},
		},

(AtomicAnd(64|32|8)Variant     ...) => (LoweredAtomicAnd(64|32|8)Variant     ...)
(AtomicOr(64|32|8)Variant      ...) => (LoweredAtomicOr(64|32|8)Variant      ...)

// Write barrier.
(WB ...) => (LoweredWB ...)

// Publication barrier (0xe is ST option)
(PubBarrier mem) => (DMB [0xe] mem)

(PanicBounds [kind] x y mem) && boundsABI(kind) == 0 => (LoweredPanicBoundsA [kind] x y mem)