Gert Wollny
695a4cb0f6
The current spill code checks in each instruction of an instruction group whether spilling is needed and if so, it adds spilling for each component as a seperate instruction and it allocates a new temporary for each component and since it takes the write mask from the TGSI representation, all components might be written each time and as a result already written components might be overwritten with garbage like: ... y: MOV R9.y, [0x42140000 37].x t: MOV R8.x, [0x42040000 33].y ... MEM_SCRATCH WRITE_IND_ACK 0 R9.xy__, @R4.x ES:3 MEM_SCRATCH WRITE_IND_ACK 0 R8.xy__, @R4.x ES:3 ... To resolve this isse accumulate spills to the same memory location so that only one memory write instruction is emitted for an instruction group that writes up to all four components. This fixes updated piglits (see https://patchwork.freedesktop.org/series/46064/): spec/glsl-1.30/execution fs-large-local-array-vec2.shader_test fs-large-local-array-vec3.shader_test fs-large-local-array-vec4.shader_test v2: fix some typos and add comment about piglits (Roland Scheidegger) Signed-off-by: Gert Wollny <gert.wollny@collabora.com> Reviewed-by: Roland Scheidegger <sroland@vmware.com> (v1)
`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:
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: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.