Ian Romanick 90d267b2d1 intel/fs: Fix bounds checking for integer multiplication lowering
The previous bounds checking would cause

    mul(8)          g121<1>D        g120<8,8,1>D    0xec4dD

to be lowered to

    mul(8)          g121<1>D        g120<8,8,1>D    0xec4dUW
    mul(8)          g41<1>D         g120<8,8,1>D    0x0000UW
    add(8)          g121.1<2>UW     g121.1<16,8,2>UW g41<16,8,2>UW

Instead of picking the bounds (and the new type) based on the old type,
pick the new type based on the value only.

This helps a few fossil-db shaders in Witcher 3 and Geekbench5.  No
changes on any other Intel platforms.

Tiger Lake
Instructions in all programs: 157581069 -> 157580768 (-0.0%)
Instructions helped: 24

Cycles in all programs: 7566979620 -> 7566977172 (-0.0%)
Cycles helped: 22
Cycles hurt: 4

Ice Lake
Instructions in all programs: 141998965 -> 141998667 (-0.0%)
Instructions helped: 26

Cycles in all programs: 9162568666 -> 9162565297 (-0.0%)
Cycles helped: 24
Cycles hurt: 2

Skylake
No changes.

Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17718>
2022-11-08 00:02:16 +00:00
2022-11-04 14:51:24 +00:00
2022-11-03 20:24:41 +00:00
2022-10-20 22:52:06 +00:00
2022-09-12 05:58:12 +00:00
2022-01-19 15:17:17 +00:00
2022-11-05 14:35:41 +00:00

`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.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


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-----------

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------------

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