(Zero [s-s%16] (OffPtr <destptr.Type> destptr [s%16])
		(MOVOstoreconst [makeValAndOff(0,0)] destptr mem))

(Zero [16] destptr mem) && config.useSSE =>
	(MOVOstoreconst [makeValAndOff(0,0)] destptr mem)
(Zero [32] destptr mem) && config.useSSE =>
	(MOVOstoreconst [makeValAndOff(0,16)] destptr
		(MOVOstoreconst [makeValAndOff(0,0)] destptr mem))
(Zero [48] destptr mem) && config.useSSE =>

	hasGReg        bool        // has hardware g register
	ctxt           *obj.Link   // Generic arch information
	optimize       bool        // Do optimization
	noDuffDevice   bool        // Don't use Duff's device
	useSSE         bool        // Use SSE for non-float operations
	useAvg         bool        // Use optimizations that need Avg* operations
	useHmul        bool        // Use optimizations that need Hmul* operations

		v.AddArg3(dst, v0, mem)
		return true
	}
	// match: (Move [16] dst src mem)
	// cond: config.useSSE
	// result: (MOVOstore dst (MOVOload src mem) mem)
	for {
		if auxIntToInt64(v.AuxInt) != 16 {
			break
		}
		dst := v_0
		src := v_1
		mem := v_2
		if !(config.useSSE) {
			break
		}
		v.reset(OpAMD64MOVOstore)