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This also helps a later patch (intel/fs: Improve discard_if code generation) on about 200 shaders. v2: Document that other instruction sequences are also valid in subtract_merge_with_compare_intervening_mismatch_flag_write. Suggested by Caio. All Intel platforms had similar results. (Ice Lake shown) total instructions in shared programs: 17224438 -> 17224434 (<.01%) instructions in affected programs: 296 -> 292 (-1.35%) helped: 4 HURT: 0 helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 helped stats (rel) min: 0.99% max: 1.92% x̄: 1.43% x̃: 1.40% 95% mean confidence interval for instructions value: -1.00 -1.00 95% mean confidence interval for instructions %-change: -2.04% -0.81% Instructions are helped. total cycles in shared programs: 361468455 -> 361468458 (<.01%) cycles in affected programs: 2862 -> 2865 (0.10%) helped: 2 HURT: 2 helped stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2 helped stats (rel) min: 0.24% max: 0.39% x̄: 0.31% x̃: 0.31% HURT stats (abs) min: 3 max: 4 x̄: 3.50 x̃: 3 HURT stats (rel) min: 0.32% max: 0.70% x̄: 0.51% x̃: 0.51% 95% mean confidence interval for cycles value: -4.34 5.84 95% mean confidence interval for cycles %-change: -0.70% 0.90% Inconclusive result (value mean confidence interval includes 0). Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com> Reviewed-by: Matt Turner <mattst88@gmail.com> |
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| compiler | ||
| egl | ||
| etnaviv | ||
| freedreno | ||
| gallium | ||
| gbm | ||
| getopt | ||
| glx | ||
| gtest | ||
| hgl | ||
| imgui | ||
| intel | ||
| loader | ||
| mapi | ||
| mesa | ||
| util | ||
| vulkan | ||
| meson.build | ||
| SConscript | ||