// (particularly stack maps).  It takes a memory arg so it
	// gets correctly ordered with respect to GC safepoints.
	// It gets compiled to nothing, so its result must in the same
	// register as its argument. regalloc knows it can use any
	// allocatable integer register for OpConvert.
	// arg0=ptr/int arg1=mem, output=int/ptr
	{name: "Convert", argLength: 2, zeroWidth: true, resultInArg0: true},