58d82add87
The old delay calculation relied on the SSA information staying around, and wouldn't work once we start introducing phi nodes and making "normal" values defined in multiple blocks not array regs anymore. What's worse is that properly inserting phi nodes when splitting live ranges would make that code even more complicated, and this was the last place post-RA that actually needed that information. The new version only compares the physical registers of sources and destinations. It works by going backwards up to a maximum number of cycles, so it might be slightly slower when the definition is closer but should be faster when it is farther away. To avoid complicating the new method, the old method is kept around, but only for pre-RA scheduling and it can therefore be drastically simplified as the array case can be dropped. ir3_delay_calc() is split into a few variants to avoid an explosion of boolean arguments in users, especially now that merged_regs now has to be passed to it. The new method is a little more complicated when it comes to handling (rptN), because both the assigner and consumer may be (rptN). This adds some unit tests for those cases, in addition to dropping the to-SSA code in the test harness since it's no longer needed. Finally, ir3_legalize has to be switched to using physical registers for the branch condition. This was the one place where IR3_REG_SSA remained after RA. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9842> |
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| .gitlab/issue_templates | ||
| .gitlab-ci | ||
| android | ||
| bin | ||
| build-support | ||
| docs | ||
| include | ||
| src | ||
| subprojects | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .mailmap | ||
| .travis.yml | ||
| Android.common.mk | ||
| Android.mk | ||
| CleanSpec.mk | ||
| README.rst | ||
| REVIEWERS | ||
| VERSION | ||
| 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.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 `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://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.