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Jason Ekstrand ad2b712a56 nir/deref: Rematerialize parents in rematerialize_derefs_in_use_blocks
When nir_rematerialize_derefs_in_use_blocks_impl was first written, I
attempted to optimize things a bit by not bothering to re-materialize
the sources of deref instructions figuring that the final caller would
take care of that.  However, in the case of more complex deref chains
where the first link or two lives in block A and then another link and
the load/store_deref intrinsic live in block B it doesn't work.  The
code in rematerialize_deref_in_block looks at the tail of the chain,
sees that it's already in block B and skips it, not realizing that part
of the chain also lives in block A.

The easy solution here is to just rematerialize deref sources of deref
instructions as well.  This may potentially lead to a few more deref
instructions being created by the conditions required for that to
actually happen are fairly unlikely and, thanks to the caching, it's all
linear time regardless.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109603
Fixes: 7d1d1208c2 "nir: Add a small pass to rematerialize derefs per-block"
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
(cherry picked from commit 9e6a6ef0d4)
2019-02-11 16:24:42 -08:00
bin bin/meson-cmd-extract: Also handle cross and native files 2019-01-18 09:37:01 -08:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs egl: finalize EGL_MESA_query_driver 2019-01-24 14:37:36 +00:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include dri_interface: add put shm image2 (v2) 2019-01-25 04:27:45 +10:00
m4 configure: allow building with python3 2018-10-31 19:15:50 +00:00
scons scons: drop unused HAVE_STDINT_H macro 2018-10-30 18:10:59 +00:00
scripts appveyor: Revert commits adding Cygwin support. 2019-01-25 14:13:26 +00:00
src nir/deref: Rematerialize parents in rematerialize_derefs_in_use_blocks 2019-02-11 16:24:42 -08:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Add max_line_length property 2019-01-10 15:50:34 +02:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore .gitignore: list *.orig and *.rej 2017-09-06 17:48:50 +01:00
.mailmap mailmap: add various typos of Emil's address from the log 2018-08-16 17:38:04 +01:00
.travis.yml Switch imx to kmsro and remove the imx winsys 2019-01-28 11:50:08 -06:00
Android.common.mk build: stop defining unused VERSION 2018-11-26 22:05:02 +00:00
Android.mk Switch imx to kmsro and remove the imx winsys 2019-01-28 11:50:08 -06:00
appveyor.yml appveyor: Revert commits adding Cygwin support. 2019-01-25 14:13:26 +00:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
common.py scons/svga: remove opt from the list of valid build types 2018-10-26 12:09:00 -06:00
configure.ac configure: Bump SWR LLVM requirement to 7 2019-01-30 09:27:14 -08:00
install-gallium-links.mk gallium: Fix install-gallium-links.mk on non-bash /bin/sh 2016-10-10 08:56:12 -07:00
install-lib-links.mk install-lib-links: remove the .install-lib-links file 2015-02-24 15:33:25 +00:00
Makefile.am automake: Add --enable-autotools to distcheck flags 2019-01-30 09:45:14 -08:00
meson.build kmsro: Add freedreno renderonly support 2019-01-28 18:25:27 -05:00
meson_options.txt Switch imx to kmsro and remove the imx winsys 2019-01-28 11:50:08 -06:00
README.rst README: wording fix for previous commit 2018-06-11 18:34:58 +01:00
REVIEWERS REVIEWERS: add Vulkan reviewer group 2018-11-13 17:25:02 +00:00
SConstruct scons: Require python 2.7 2018-08-16 13:52:56 -07:00
VERSION Version: Bump for rc2 2019-02-05 11:49:03 -08:00

`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 status
------------

Travis:

.. image:: https://travis-ci.org/mesa3d/mesa.svg?branch=master
    :target: https://travis-ci.org/mesa3d/mesa

Appveyor:

.. image:: https://img.shields.io/appveyor/ci/mesa3d/mesa.svg
    :target: https://ci.appveyor.com/project/mesa3d/mesa

Coverity:

.. image:: https://scan.coverity.com/projects/139/badge.svg?flat=1
    :target: https://scan.coverity.com/projects/mesa


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.