return NOP
	}
	return LOP_IRR(OP_ORI, uint32(r), uint32(r), uint32(v))
}

// Load the upper 16 bits of a 32b constant into register r.
func loadu32(r int, d int64) uint32 {
	v := int32(d >> 16)
	if isuint32(uint64(d)) {
		return LOP_IRR(OP_ORIS, uint32(r), REGZERO, uint32(v))
	}
	return AOP_IRR(OP_ADDIS, uint32(r), REGZERO, uint32(v))
}