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Francisco Jerez 0703eab012 intel/fs/gen8+: Fix r127 dst/src overlap RA workaround for EOT message payload.
The problem occured when the return payload of a SIMD8 SEND
instruction was re-used as source payload of an EOT SEND message.  In
such cases the interference edge added by that workaround between the
payload and grf127_send_hack_node would have no effect, because the
payload would be allocated to a fixed range of registers containing
r127 by the special handling of EOT message payloads in the same
function.  This would cause things to blow up if the source payload of
the first SIMD8 message ended up being allocated to a range which
happened to overlap the destination.

Fix it by avoiding r127 altogether in the allocation of EOT message
payloads.

The problem can be reproduced on ICL with the fp-indirections2 Piglit
test-case in combination with the other optimizer changes of this
series.

Fixes: 232ed89802 "i965/fs: Register allocator shoudn't use grf127 for sends dest"
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2020-01-10 11:00:42 -08:00
.appveyor Appveyor: Quickly fix meson build. 2019-11-14 21:45:23 +00:00
.gitlab-ci llvmpipe: add ARB_derivative_control support 2020-01-10 08:43:40 +10:00
bin meson: simplify install_megadrivers.py invocation 2019-12-27 22:43:34 +00:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs llvmpipe: add ARB_derivative_control support 2020-01-10 08:43:40 +10:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include virgl/drm: update UAPI 2020-01-10 04:12:40 +00:00
scons scons: Bump C standard to gnu11 on macOS 10.15. 2019-11-29 12:38:29 +00:00
src intel/fs/gen8+: Fix r127 dst/src overlap RA workaround for EOT message payload. 2020-01-10 11:00:42 -08:00
subprojects meson: add a expat subproject 2019-09-10 20:36:47 +00:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Fix meson style 2019-05-24 18:44:18 +00:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml gitlab-ci: Test against LLVM / clang 9 on x86 2020-01-07 11:00:16 +01:00
.mailmap .mailmap: use correct email address 2019-12-21 17:50:01 +00:00
.travis.yml travis: autodetect python version instead of hard-coding it 2019-12-21 20:23:08 +00:00
Android.common.mk android: mesa: Revert "android: mesa: revert "Enable asm unconditionally"" 2019-11-12 18:09:43 +00:00
Android.mk android: mesa: Revert "android: mesa: revert "Enable asm unconditionally"" 2019-11-12 18:09:43 +00:00
appveyor.yml Appveyor: Quickly fix meson build. 2019-11-14 21:45:23 +00:00
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
common.py scons: Print a deprecation warning about using scons on not windows 2019-10-24 18:33:50 +00:00
meson.build meson: Enable -Werror=int-conversion. 2020-01-02 11:47:02 +00:00
meson_options.txt meson: Add a "prefer_iris" build option 2019-12-02 12:56:27 -08:00
README.rst docs: remove mailing list as way of submitting patches 2019-12-12 09:09:50 +11:00
REVIEWERS REVIEWERS: add VMware reviewers 2019-10-18 16:42:40 +00:00
SConstruct scons: Fix force_scons parsing. 2019-10-26 08:23:48 +01:00
VERSION Bump VERSION to 20.0.0-devel 2019-10-30 14:56:02 -07:00

`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
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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
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<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 gitlab for patches submission, review and discussions.