On Sat, Jan 7, 2017 at 3:58 AM, Timothy Arceri <[email protected]> wrote: > From: Kenneth Graunke <[email protected]> > > On BDW: > > total instructions in shared programs: 13071119 -> 13070371 (-0.01%) > instructions in affected programs: 83424 -> 82676 (-0.90%) > helped: 505 > HURT: 45 (all TCS, all hurt by a single instruction)
I investigated these hurt programs when Ken originally sent the patch. They're all because of the extra not.nz instruction. I sent a patch "i965: Turn not.nz x into cmp.z x,0." that fixed that, was Ken noticed it was subtly wrong. Maybe you can spot another way of doing the same thing. Regardless, Reviewed-by: Matt Turner <[email protected]> _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
