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Rohan Garg e103afe7be
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brw: run the nir_opt_offsets pass and set the maximum offset size 
Perf A/B testing on DG2: no changes
Perf A/B testing on BMG: +2.1% Blackops3, +1.5% Cyberpunk

DG2 stats (mostly insignificant):
Assassins Creed Valhalla:
 Totals from 1169 (55.67% of 2100) affected shaders:
 Instrs: 509237 -> 509215 (-0.00%)
 Cycle count: 30614325 -> 30607419 (-0.02%); split: -0.03%, +0.00%
 Non SSA regs after NIR: 83434 -> 85909 (+2.97%)

Blackops 3:
 Totals from 1045 (64.63% of 1617) affected shaders:
 Instrs: 527312 -> 527310 (-0.00%)
 Cycle count: 496912222 -> 496902846 (-0.00%); split: -0.00%, +0.00%
 Non SSA regs after NIR: 106883 -> 109095 (+2.07%)

Cyberpunk:
 Totals from 706 (56.03% of 1260) affected shaders:
 Instrs: 345976 -> 345974 (-0.00%); split: -0.00%, +0.00%
 Cycle count: 9775138 -> 9775472 (+0.00%); split: -0.00%, +0.00%
 Max live registers: 40295 -> 40297 (+0.00%)
 Non SSA regs after NIR: 93245 -> 94718 (+1.58%)

Fortnite:
 Totals from 4210 (55.98% of 7521) affected shaders:
 Instrs: 2205471 -> 2205469 (-0.00%)
 Cycle count: 91451040 -> 91450956 (-0.00%); split: -0.00%, +0.00%
 Non SSA regs after NIR: 952354 -> 961664 (+0.98%)

LNL stats (notable changes):
Assassins Creed Valhalla:
 Totals from 1684 (83.57% of 2015) affected shaders:
 Instrs: 774305 -> 764501 (-1.27%); split: -1.27%, +0.01%
 Cycle count: 58845842 -> 58699250 (-0.25%); split: -0.98%, +0.73%
 Spill count: 625 -> 638 (+2.08%)
 Fill count: 1490 -> 1503 (+0.87%)
 Scratch Memory Size: 41984 -> 44032 (+4.88%)
 Max live registers: 196424 -> 197561 (+0.58%); split: -0.10%, +0.68%

Blackops 3:
 Totals from 1125 (76.53% of 1470) affected shaders:
 Instrs: 781749 -> 773275 (-1.08%); split: -1.08%, +0.00%
 Subgroup size: 22896 -> 22912 (+0.07%)
 Cycle count: 659864454 -> 654641032 (-0.79%); split: -1.10%, +0.31%
 Max live registers: 116772 -> 116854 (+0.07%); split: -0.01%, +0.08%
 Non SSA regs after NIR: 172648 -> 168260 (-2.54%); split: -2.55%, +0.01%

Control:
 Totals from 378 (51.50% of 734) affected shaders:
 Instrs: 148184 -> 147544 (-0.43%)
 Cycle count: 6905200 -> 6913366 (+0.12%); split: -0.30%, +0.42%
 Max live registers: 41271 -> 41281 (+0.02%)
 Non SSA regs after NIR: 44964 -> 43868 (-2.44%); split: -2.45%, +0.01%

Cyberpunk:
 Totals from 1141 (92.46% of 1234) affected shaders:
 Instrs: 636744 -> 629333 (-1.16%)
 Subgroup size: 24256 -> 24272 (+0.07%)
 Cycle count: 24952258 -> 24801298 (-0.60%); split: -1.39%, +0.78%
 Max live registers: 125848 -> 126855 (+0.80%); split: -0.00%, +0.80%
 Non SSA regs after NIR: 127399 -> 119837 (-5.94%); split: -5.95%, +0.02%

Fortnite:
 Totals from 5497 (83.52% of 6582) affected shaders:
 Instrs: 4072831 -> 4041852 (-0.76%); split: -0.77%, +0.01%
 Subgroup size: 103296 -> 103312 (+0.02%)
 Cycle count: 133046874 -> 132789242 (-0.19%); split: -0.67%, +0.48%
 Spill count: 7218 -> 7254 (+0.50%); split: -0.33%, +0.83%
 Fill count: 11724 -> 11749 (+0.21%); split: -0.34%, +0.55%
 Scratch Memory Size: 591872 -> 599040 (+1.21%)
 Max live registers: 816530 -> 818522 (+0.24%); split: -0.01%, +0.26%
 Non SSA regs after NIR: 1610296 -> 1560284 (-3.11%); split: -3.11%, +0.00%

Hitman3:
 Totals from 4713 (92.39% of 5101) affected shaders:
 Instrs: 2731598 -> 2698224 (-1.22%)
 Cycle count: 186422098 -> 185472640 (-0.51%); split: -1.12%, +0.61%
 Spill count: 3244 -> 3242 (-0.06%)
 Fill count: 9937 -> 9933 (-0.04%)
 Max live registers: 585035 -> 589801 (+0.81%); split: -0.00%, +0.82%
 Non SSA regs after NIR: 347681 -> 324314 (-6.72%); split: -6.73%, +0.01%

Hogwarts Legacy:
 Totals from 930 (59.81% of 1555) affected shaders:
 Instrs: 464146 -> 459526 (-1.00%); split: -1.00%, +0.01%
 Subgroup size: 19104 -> 19120 (+0.08%)
 Cycle count: 24062460 -> 24078964 (+0.07%); split: -0.49%, +0.56%
 Spill count: 2068 -> 1964 (-5.03%); split: -5.22%, +0.19%
 Fill count: 2342 -> 2205 (-5.85%); split: -6.40%, +0.56%
 Scratch Memory Size: 147456 -> 141312 (-4.17%)
 Max live registers: 112384 -> 112787 (+0.36%); split: -0.08%, +0.44%
 Non SSA regs after NIR: 80293 -> 79161 (-1.41%); split: -1.72%, +0.32%

Metro Exodus:
 Totals from 29755 (78.62% of 37846) affected shaders:
 Instrs: 11495578 -> 11492951 (-0.02%); split: -0.02%, +0.00%
 Subgroup size: 644688 -> 644704 (+0.00%)
 Cycle count: 301572068 -> 301548054 (-0.01%); split: -0.03%, +0.02%
 Max live registers: 3369504 -> 3370454 (+0.03%); split: -0.00%, +0.03%
 Non SSA regs after NIR: 2476561 -> 2396090 (-3.25%); split: -3.27%, +0.02%

Red Dead Redemption 2:
 Totals from 4161 (78.61% of 5293) affected shaders:
 Instrs: 2428782 -> 2409032 (-0.81%); split: -0.82%, +0.00%
 Subgroup size: 85344 -> 85360 (+0.02%)
 Cycle count: 8514984142 -> 8533415324 (+0.22%); split: -0.02%, +0.23%
 Spill count: 4659 -> 4674 (+0.32%); split: -0.02%, +0.34%
 Fill count: 11236 -> 11231 (-0.04%); split: -0.19%, +0.14%
 Scratch Memory Size: 398336 -> 397312 (-0.26%)
 Max live registers: 473946 -> 475798 (+0.39%); split: -0.08%, +0.47%
 Non SSA regs after NIR: 616820 -> 567706 (-7.96%); split: -8.09%, +0.12%

Rise Of The Tomb Raider:
 Totals from 68 (46.58% of 146) affected shaders:
 Instrs: 28209 -> 27801 (-1.45%)
 Subgroup size: 1584 -> 1600 (+1.01%)
 Cycle count: 16182992 -> 16249364 (+0.41%); split: -0.97%, +1.38%
 Max live registers: 7320 -> 7296 (-0.33%); split: -0.38%, +0.05%
 Non SSA regs after NIR: 8438 -> 8207 (-2.74%); split: -2.82%, +0.08%

Spiderman Remastered:
 Totals from 6403 (93.87% of 6821) affected shaders:
 Instrs: 5662713 -> 5597949 (-1.14%); split: -1.28%, +0.14%
 Cycle count: 282861519016 -> 279806958122 (-1.08%); split: -1.26%, +0.18%
 Spill count: 61150 -> 60754 (-0.65%); split: -1.13%, +0.48%
 Fill count: 162597 -> 163190 (+0.36%); split: -0.84%, +1.21%
 Scratch Memory Size: 5834752 -> 5804032 (-0.53%); split: -0.70%, +0.18%
 Max live registers: 901926 -> 903820 (+0.21%); split: -0.01%, +0.22%
 Non SSA regs after NIR: 555053 -> 521016 (-6.13%); split: -6.14%, +0.01%

Signed-off-by: Rohan Garg <rohan.garg@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35252>
2025-06-22 10:55:24 +00:00
.ci-farms svga/ci: enable vmware farm 2025-06-18 14:52:25 +00:00
.ci-farms-disabled svga/ci: enable vmware farm 2025-06-18 14:52:25 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab docs: update gitlab docs urls 2025-02-23 00:31:59 +01:00
.gitlab-ci ci/lava: Fix .lava-x86_64-test-android dependencies 2025-06-19 22:08:44 +00:00
.marge/hooks ci: pipeline_message: reset empty errors 2025-01-07 05:08:10 +00:00
android Revert "android: Link with libc++fs up to SDK 35" 2025-06-03 22:01:01 +00:00
bin ci_run_n_monitor: fix padding in links 2025-06-18 08:42:19 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs radeonsi: implement SVM interfaces 2025-06-20 15:10:42 +00:00
include include: sync OpenCL headers 2025-06-18 13:30:40 +00:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src brw: run the nir_opt_offsets pass and set the maximum offset size 2025-06-22 10:55:24 +00:00
subprojects subprojects: add zerocopy 2025-06-17 22:28:54 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include r300: opt in to clang-format CI enforcement for the compiler 2024-10-15 09:24:02 +00:00
.dir-locals.el
.editorconfig meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
.git-blame-ignore-revs ir3: add reformatting commits to .git-blame-ignore-revs 2025-02-27 13:10:53 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore .gitignore: add .cache folder 2024-05-13 14:32:12 +00:00
.gitlab-ci.yml ci: Fix missing pipelines on user pipelines in MRs 2025-06-12 13:15:54 +00:00
.graphqlrc.yml
.mailmap mailmap: update my name and email 2025-05-07 00:26:45 +00:00
.mr-label-maker.yml mr-label-maker.yml: Add mediafoundation tag and associated directories 2025-05-23 15:30:04 +00:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
CODEOWNERS docs: update gitlab docs urls 2025-02-23 00:31:59 +01:00
meson.build meson: make clz available in OpenCL code 2025-06-20 10:11:52 +00:00
meson.options rusticl: allow packagers to enable freedreno by default 2025-06-20 17:46:32 +00:00
README.rst docs: Match README installation guide with meson.rst 2024-07-27 11:53:53 +00:00
rustfmt.toml mesa: Add rustfmt.toml 2024-11-18 22:29:14 +00:00
VERSION VERSION: bump to 25.2 2025-04-16 14:30:14 +02:00

README.rst 

`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://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ install

Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.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://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.