On Wed, Jan 14, 2015 at 1:29 PM, Matt Turner <matts...@gmail.com> wrote: > glsl: Optimize certain if-statements to just casts from the condition
Cherry-picked to master, the shader-db results are total instructions in shared programs: 5965630 -> 5952789 (-0.22%) instructions in affected programs: 737228 -> 724387 (-1.74%) GAINED: 5 LOST: 16 and we hurt 20 programs: 12 vec4 programs significantly (>68%) and 8 SIMD8/16 programs by 1 instruction. This, and seemingly every other work-in-progress branch I have really highlights the improvements we need to make to instruction scheduling. It feels fitting that one of the last significant changes Eric made to scheduling has a commit message that says "This is madness, [...]" > i965/fs: Emit smarter code for b2f I wouldn't expect this one to change instruction counts, except on gen <= 5 where maybe we get to skip the true/false resolve (apparently I did it wrong in my merge -- it caused a bunch of failures on G45 and ILK according to Jenkins). On Haswell, total instructions in shared programs: 5954954 -> 5955030 (0.00%) instructions in affected programs: 4212 -> 4288 (1.80%) with three programs helped (that I just added to shader-db on Monday, yay!) and 19 hurt, 12 significantly. I'm surprised. I'll investigate. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
