mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-01-03 20:10:17 +01:00
read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
77d6fda0f5
This distributes imul(iadd(a, b), c) to iadd(imul(a, c), b * c) when both b and c are constants. This might allow some compiler backends to create more MADs. For ACO, this allows to combine more DS additions. fossilds-db (Vega10): Totals from 673 (0.49% of 136546) affected shaders: VGPRs: 44548 -> 44516 (-0.07%); split: -0.11%, +0.04% CodeSize: 8301552 -> 8286220 (-0.18%); split: -0.19%, +0.01% MaxWaves: 2731 -> 2735 (+0.15%); split: +0.26%, -0.11% Instrs: 1642684 -> 1638725 (-0.24%); split: -0.24%, +0.00% Cycles: 20846156 -> 20793444 (-0.25%); split: -0.25%, +0.00% VMEM: 108870 -> 108106 (-0.70%); split: +0.03%, -0.73% SMEM: 35718 -> 35674 (-0.12%); split: +0.22%, -0.34% VClause: 20603 -> 20622 (+0.09%); split: -0.01%, +0.10% SClause: 48527 -> 48539 (+0.02%) Copies: 156735 -> 156742 (+0.00%); split: -0.05%, +0.05% PreSGPRs: 43169 -> 43166 (-0.01%); split: -0.02%, +0.02% PreVGPRs: 41369 -> 41330 (-0.09%) shader-db results on Intel: Ice Lake total instructions in shared programs: 20027588 -> 20027446 (<.01%) instructions in affected programs: 71766 -> 71624 (-0.20%) helped: 70 HURT: 0 helped stats (abs) min: 1 max: 7 x̄: 2.03 x̃: 1 helped stats (rel) min: 0.10% max: 2.50% x̄: 0.29% x̃: 0.15% 95% mean confidence interval for instructions value: -2.42 -1.64 95% mean confidence interval for instructions %-change: -0.38% -0.20% Instructions are helped. total cycles in shared programs: 977525222 -> 977494323 (<.01%) cycles in affected programs: 8884593 -> 8853694 (-0.35%) helped: 56 HURT: 16 helped stats (abs) min: 2 max: 7852 x̄: 681.29 x̃: 400 helped stats (rel) min: <.01% max: 19.84% x̄: 2.79% x̃: 0.41% HURT stats (abs) min: 2 max: 1212 x̄: 453.31 x̃: 120 HURT stats (rel) min: 0.05% max: 1.09% x̄: 0.32% x̃: 0.11% 95% mean confidence interval for cycles value: -802.75 -55.56 95% mean confidence interval for cycles %-change: -3.19% -1.01% Cycles are helped. total sends in shared programs: 1032273 -> 1032272 (<.01%) sends in affected programs: 41 -> 40 (-2.44%) helped: 1 HURT: 0 Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7445> |
||
|---|---|---|
| .appveyor | ||
| .gitlab/issue_templates | ||
| .gitlab-ci | ||
| bin | ||
| build-support | ||
| docs | ||
| doxygen | ||
| include | ||
| scons | ||
| src | ||
| subprojects | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .mailmap | ||
| .travis.yml | ||
| Android.common.mk | ||
| Android.mk | ||
| appveyor.yml | ||
| CleanSpec.mk | ||
| common.py | ||
| meson.build | ||
| meson_options.txt | ||
| README.rst | ||
| REVIEWERS | ||
| SConstruct | ||
| VERSION | ||
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `Freenode's #dri-devel <irc://chat.freenode.net#dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.