return true
	}
	// match: (MOVHreg y:(MOVHreg _))
	// result: y
	for {
		y := v_0
		if y.Op != OpPPC64MOVHreg {
			break
		}
		v.copyOf(y)
		return true
	}
	// match: (MOVHreg y:(MOVBreg _))
	// result: y
	for {
		y := v_0
		if y.Op != OpPPC64MOVBreg {
			break
		}
		v.copyOf(y)
		return true
	}
	// match: (MOVHreg y:(MOVHZreg x))