SUB x cc r1 ar r2 -> usage (r1 : regRI ar, [r2])
UMUL cc r1 ar r2 -> usage (r1 : regRI ar, [r2])
SMUL cc r1 ar r2 -> usage (r1 : regRI ar, [r2])
SUB x cc r1 ar r2 -> usage (r1 : regRI ar, [r2])
UMUL cc r1 ar r2 -> usage (r1 : regRI ar, [r2])
SMUL cc r1 ar r2 -> usage (r1 : regRI ar, [r2])