FSR_RD_RM
if (rd != FSR_RD_RM) /* only -0 + -0 gives -0 */
r->fp_sign = rd == FSR_RD_RM;
case FSR_RD_RM:
case FSR_RD_RM: /* toward -Inf iff negative */
if (rd != FSR_RD_RM) /* only -0 + -0 gives -0 */
r->fp_sign = rd == FSR_RD_RM;
case FSR_RD_RM:
case FSR_RD_RM: /* toward -Inf iff negative */