acd7796a07
This commit is also a pre-requisite for the next commit.
No shader-db changes on any Gen8+ platform as these platforms do not use
the vec4 backend.
v2: Massive rebase on eeebeb211f ("intel/vec4: Try emitting non-scalar
immediates"). This change is a lot less helpful since that commit
landed (previously helped 1934 shaders on HSW) because, apparently, a
lot of the cases helped by that commit were things like vector loads of
{ 1.0, 1.0, 1.0 } that were also helped by this commit.
Haswell
total instructions in shared programs: 13480095 -> 13478598 (-0.01%)
instructions in affected programs: 229534 -> 228037 (-0.65%)
helped: 1006
HURT: 0
helped stats (abs) min: 1 max: 7 x̄: 1.49 x̃: 1
helped stats (rel) min: 0.04% max: 3.45% x̄: 1.11% x̃: 1.09%
95% mean confidence interval for instructions value: -1.54 -1.43
95% mean confidence interval for instructions %-change: -1.15% -1.07%
Instructions are helped.
total cycles in shared programs: 376385734 -> 376386916 (<.01%)
cycles in affected programs: 14101380 -> 14102562 (<.01%)
helped: 941
HURT: 56
helped stats (abs) min: 2 max: 322 x̄: 5.62 x̃: 2
helped stats (rel) min: <.01% max: 7.74% x̄: 0.51% x̃: 0.42%
HURT stats (abs) min: 2 max: 618 x̄: 115.50 x̃: 32
HURT stats (rel) min: 0.03% max: 4.62% x̄: 0.83% x̃: 0.44%
95% mean confidence interval for cycles value: -2.06 4.43
95% mean confidence interval for cycles %-change: -0.47% -0.39%
Inconclusive result (value mean confidence interval includes 0).
Ivy Bridge
total instructions in shared programs: 12048004 -> 12046589 (-0.01%)
instructions in affected programs: 217072 -> 215657 (-0.65%)
helped: 934
HURT: 0
helped stats (abs) min: 1 max: 7 x̄: 1.51 x̃: 1
helped stats (rel) min: 0.04% max: 3.45% x̄: 1.14% x̃: 1.11%
95% mean confidence interval for instructions value: -1.57 -1.46
95% mean confidence interval for instructions %-change: -1.18% -1.10%
Instructions are helped.
total cycles in shared programs: 180285854 -> 180287608 (<.01%)
cycles in affected programs: 14103824 -> 14105578 (0.01%)
helped: 871
HURT: 53
helped stats (abs) min: 2 max: 322 x̄: 5.51 x̃: 2
helped stats (rel) min: <.01% max: 7.67% x̄: 0.50% x̃: 0.42%
HURT stats (abs) min: 2 max: 618 x̄: 123.66 x̃: 32
HURT stats (rel) min: 0.03% max: 4.47% x̄: 0.92% x̃: 0.46%
95% mean confidence interval for cycles value: -1.60 5.39
95% mean confidence interval for cycles %-change: -0.46% -0.37%
Inconclusive result (value mean confidence interval includes 0).
Sandy Bridge
total instructions in shared programs: 10861227 -> 10860328 (<.01%)
instructions in affected programs: 92969 -> 92070 (-0.97%)
helped: 624
HURT: 0
helped stats (abs) min: 1 max: 7 x̄: 1.44 x̃: 1
helped stats (rel) min: 0.11% max: 3.45% x̄: 1.05% x̃: 0.95%
95% mean confidence interval for instructions value: -1.52 -1.36
95% mean confidence interval for instructions %-change: -1.09% -1.01%
Instructions are helped.
total cycles in shared programs: 153944316 -> 153942720 (<.01%)
cycles in affected programs: 1640956 -> 1639360 (-0.10%)
helped: 601
HURT: 15
helped stats (abs) min: 2 max: 120 x̄: 3.56 x̃: 2
helped stats (rel) min: 0.02% max: 6.33% x̄: 0.18% x̃: 0.08%
HURT stats (abs) min: 2 max: 72 x̄: 36.13 x̃: 36
HURT stats (rel) min: 0.05% max: 3.84% x̄: 1.95% x̃: 2.00%
95% mean confidence interval for cycles value: -3.44 -1.74
95% mean confidence interval for cycles %-change: -0.18% -0.09%
Cycles are helped.
Iron Lake and GM45 had similar results. (Iron Lake shown)
total instructions in shared programs: 8139924 -> 8139378 (<.01%)
instructions in affected programs: 69776 -> 69230 (-0.78%)
helped: 322
HURT: 0
helped stats (abs) min: 1 max: 8 x̄: 1.70 x̃: 1
helped stats (rel) min: 0.27% max: 3.23% x̄: 0.79% x̃: 0.54%
95% mean confidence interval for instructions value: -1.88 -1.51
95% mean confidence interval for instructions %-change: -0.85% -0.72%
Instructions are helped.
total cycles in shared programs: 188542864 -> 188541756 (<.01%)
cycles in affected programs: 3031532 -> 3030424 (-0.04%)
helped: 320
HURT: 0
helped stats (abs) min: 2 max: 20 x̄: 3.46 x̃: 2
helped stats (rel) min: <.01% max: 0.69% x̄: 0.06% x̃: 0.06%
95% mean confidence interval for cycles value: -3.85 -3.07
95% mean confidence interval for cycles %-change: -0.06% -0.05%
Cycles are helped.
Reviewed-by: Matt Turner <mattst88@gmail.com>
`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 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.