(Leq(64|32)F ...) => (F(64|32)Le ...)

(Eq64  ...) => (I64Eq ...)
(Eq32  x y) => (I64Eq (ZeroExt32to64 x) (ZeroExt32to64 y))
(Eq16  x y) => (I64Eq (ZeroExt16to64 x) (ZeroExt16to64 y))
(Eq8   x y) => (I64Eq (ZeroExt8to64  x) (ZeroExt8to64  y))
(EqB   ...) => (I64Eq ...)
(EqPtr ...) => (I64Eq ...)
(Eq(64|32)F ...) => (F(64|32)Eq ...)

(Neq64  ...) => (I64Ne ...)

	MOVD CTXT, g_sched+gobuf_ctxt(g)

	// Cannot grow scheduler stack (m->g0).
	Get g
	Get R2
	I64Eq
	If
		CALLNORESUME runtime·badmorestackg0(SB)
		CALLNORESUME runtime·abort(SB)
	End

	// Cannot grow signal stack (m->gsignal).
	Get g
	I64Load m_gsignal(R1)
	I64Eq
	If
		CALLNORESUME runtime·badmorestackgsignal(SB)
		CALLNORESUME runtime·abort(SB)
	End

	// Called from f.

		{name: "F64Const", reg: fp64_01, aux: "Float64", rematerializeable: true, typ: "Float64"}, // returns the constant float aux

		{name: "I64Eqz", asm: "I64Eqz", argLength: 1, reg: gp11, typ: "Bool"}, // arg0 == 0
		{name: "I64Eq", asm: "I64Eq", argLength: 2, reg: gp21, typ: "Bool"},   // arg0 == arg1
		{name: "I64Ne", asm: "I64Ne", argLength: 2, reg: gp21, typ: "Bool"},   // arg0 != arg1

		//
		// MOVD g_panic(g), R0
		// Get R0
		// I64Eqz
		// Not
		// If
		//   Get SP
		//   I64ExtendI32U
		//   I64Const $framesize+8
		//   I64Add
		//   I64Load panic_argp(R0)
		//   I64Eq
		//   If
		//     MOVD SP, panic_argp(R0)
		//   End
		// End

		gpanic := obj.Addr{
			Type:   obj.TYPE_MEM,
			Reg:    REGG,
			Offset: 4 * 8, // g_panic
		}

		panicargp := obj.Addr{