20771ede1c
Think of this pass as register coalescing part 2. After RA runs, but before scheduling, we scan for code of the form: mov rN, rN and delete the move, since it's totally redundant. This pass helps already, but it'd of course be much more effective paired with register coalescing to encourage moves in general to end up in this form. Nevertheless, even by itself: total instructions in shared programs: 3665 -> 3613 (-1.42%) instructions in affected programs: 2046 -> 1994 (-2.54%) helped: 52 HURT: 0 helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 helped stats (rel) min: 0.19% max: 25.00% x̄: 8.02% x̃: 4.00% 95% mean confidence interval for instructions value: -1.00 -1.00 95% mean confidence interval for instructions %-change: -10.26% -5.79% Instructions are helped. total bundles in shared programs: 2256 -> 2213 (-1.91%) bundles in affected programs: 1154 -> 1111 (-3.73%) helped: 43 HURT: 0 helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 helped stats (rel) min: 0.33% max: 25.00% x̄: 9.10% x̃: 5.56% 95% mean confidence interval for bundles value: -1.00 -1.00 95% mean confidence interval for bundles %-change: -11.60% -6.60% Bundles are helped. total quadwords in shared programs: 3689 -> 3642 (-1.27%) quadwords in affected programs: 2025 -> 1978 (-2.32%) helped: 47 HURT: 0 helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 helped stats (rel) min: 0.19% max: 25.00% x̄: 7.86% x̃: 3.85% 95% mean confidence interval for quadwords value: -1.00 -1.00 95% mean confidence interval for quadwords %-change: -10.30% -5.42% Quadwords are helped. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> |
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| include | ||
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| src | ||
| .dir-locals.el | ||
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| Android.common.mk | ||
| Android.mk | ||
| CleanSpec.mk | ||
| README.rst | ||
| REVIEWERS | ||
| SConstruct | ||
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| appveyor.yml | ||
| common.py | ||
| meson.build | ||
| meson_options.txt | ||
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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses email mailing-lists for patches submission, review and discussions.