On Fri, Feb 27, 2015 at 11:34 AM, Matt Turner <matts...@gmail.com> wrote: > We can safely propagate the conditional mod to an instruction with a > different type if the conditional mod does not involve comparing for > equality with zero (or probably NaN, but ignore that for now). > > This is because -0.0 and +0.0 are both test equal to zero, but their > integer representations do not. > > Cc: 10.5 <mesa-sta...@lists.freedesktop.org> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89317 > ---
As a note -- I couldn't really confirm that the -0.0/+0.0 integer comparison issue I described was indeed the problem reported in that bug. It's the only thing my mind could come up with, and I couldn't get any breakpoints to trigger in the deQP test to investigate more what was going on. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
