On Sun, 2016-12-18 at 21:58 -0800, Jason Ekstrand wrote: > On Dec 18, 2016 9:48 PM, "Timothy Arceri" <timothy.arceri@collabora.c > om> wrote: > V7: > - paritally out of ssa in unrolling pass to avoid phis > - lots of simplification/tidy ups in the analysis pass > - if_uses bug fix (missing functionality) in lcssa fixed > - better support for non trivial loop terminators > - fixed all loop HURT except 1 that is too big to unroll. > > total instructions in shared programs: 12584624 -> 12584621 (-0.00%) > instructions in affected programs: 68507 -> 68504 (-0.00%) > helped: 70 > HURT: 170 > > total cycles in shared programs: 241499996 -> 241476226 (-0.01%) > cycles in affected programs: 4060722 -> 4036952 (-0.59%) > helped: 1241 > HURT: 1278 > > total loops in shared programs: 4245 -> 2948 (-30.55%) > loops in affected programs: 1535 -> 238 (-84.50%) > helped: 1142 > HURT: 1 > > That is a *lot* of loops that we were leaving intact for no good > reason. Any idea how many of those were because the glsl pass didn't > know what to do weight them vs. the heuristic subtly changing?
Are you sending html emails lately? Your comments have been indistinguishable from the original email in a number of emails lately. I disable instruction/iteration unrolling restrictions and it helped on ly 13 loops. For the record V7 unrolls around 500 more loops than V6. I think handling phis as a conditional might give us another good jump. I would need to dig a bit deeper to be sure why so many loops remain. I'm happy to work on improving things further once we land the initial version. > > > LOST: 26 > GAINED: 16 > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
