  We show the results of analyses performed on high-energy gamma-ray emission
during the impulsive phase of solar flares detected by the LAT using Pass 8
data. We compare results obtained with Pass 7 and Pass 8 data sets, using both
LAT Low Energy and standard data classes. With a dedicated event selection,
Pass 8 allows standard analysis during the impulsive phase: it has been
designed to be less susceptible to pile-up in the LAT Anti-Coincidence Detector
caused by the intense hard X-ray emission at early times.
