On Mon, Jun 07, 2010 at 01:00:29AM +0200, Marek Olšák wrote: > On Sun, Jun 6, 2010 at 10:53 AM, Tom Stellard <tstel...@gmail.com> wrote: > > > Hi, > > > > I have just published a branch with loop emulation for the r300 > > compiler here: > > http://cgit.freedesktop.org/~tstellar/mesa/<http://cgit.freedesktop.org/%7Etstellar/mesa/> > > > > This adds support for unrolling of loops that have a constant number of > > iterations (e.g. for(i=0; i<10; i++) or for(i=10; i>0; i--) > > It only handles cases where the counter is either added to or subtracted > > from, like the examples above, but I think this covers a majority > > of loops. > > > > Loops that have an unknown number of iterations are unrolled as many > > times as possible without going over the instruction limit for the > > shader program. > > > > If you're expecting e.g. ENDIF, please check whether the instruction is > really there. Also, unrolling loops until the instruction limit is reached > seems rather itchy, but still better than my idea of loading dummy shaders. > ;) > > I haven't reviewed the commits line by line, but generally it looks good, > thanks. If it passes enough tests, I'll be happy to push it.
I cleaned up the code a little bit and made a few changes as a result of this bug: https://bugs.freedesktop.org/show_bug.cgi?id=28487 I am going to move on from loop emulation and start working on loops for r500, so these changes are ready to pull. -Tom _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
