Adding the zero constants have a minor impact on stats due to some unlucky
interactions with nir_opt_cse, opt_instr_sched_prepass and assign_regs.
Totals from 61 (0.01% of 1212873) affected shaders:
CodeSize: 1044720 -> 1047472 (+0.26%); split: -0.00%, +0.27%
Static cycle count: 1198932 -> 1198490 (-0.04%); split: -0.07%, +0.04%
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39384>
This splits the nir_move_to_top_input_loads option into 2 options. The latter
option is mainly for at_offset/at_sample loads. Then it updates most places to
use only the first option.
The rationale is that moving at_sample loads makes Control (game) shaders
worse, as per the code comment.
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41167>
is_access_out_of_bounds() decides whether the residual loop (created
by partial_unroll) will access arrays out of bounds by checking whether
array_length is less than or equal to trip_count. That assumes the
induction variable starts at 0. For example glamor gradient shader
shader-db/shaders/glamor/4.shader_test:
uniform float stops[18];
for (i = 1; i < n_stop; i++)
if (stop_len < stops[i]) break;
trip_count is guessed as 17 from the array indexing, so the residual
loop's index begins at 18, out of bounds for the 18-element array, yet
18 <= 17 is false, so the OOB removal is skipped and the residual loop
is not eliminated.
Correctly consider the start value for the OOB check. This lets glamor
gradient shaders with loops starting at i=1 unroll the same way as i=0
loops.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41203>
sed -i "s/nir_src_parent_instr/nir_src_use_instr/" `find ./ -type f`
sed -i "s/nir_src_parent_if/nir_src_use_if/" `find ./ -type f`
sed -i "s/nir_src_set_parent/nir_src_set_use/" `find ./ -type f`
There are two kinds of "parent" in relation to a src/def:
- the instruction where the def or src's def is defined
- the instruction which the src is a part of and where the def is used
Clarify that the parent here is where the src's def is used, not where
it's defined.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41344>
The structure will grow in later commits.
The major change is that the preheader and exit blocks are replaced
by tracking just the innermost optimized nir_loop * and getting the
predecessor and successor blocks out of it.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41220>
ac_nir_optimize_outputs() might pack user varyings into the color
built-ins. If this happens we skip adding clamping to the
components that contain the user varying.
This change also fixes a second bug where a color built-in can be
packed into a non-color slot and was no longer being clamped.
Fixes: 3777a5d7 ("radeonsi: assign param export indices before compilation")
Closes: #14443
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40594>
These lowered versions map to what Jay can deal with. The hardware is more
flexible but we're not due to data model restrictions. We choose to lower to get
us off the ground, we can revisit later.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40835>
A set is large and expensive to iterate.
This is faster (overall fossilize-replay difference):
Difference at 95.0% confidence
-250 +/- 28.9257
-2.04849% +/- 0.235211%
(Student's t, pooled s = 34.1626)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40242>
These two new variable modes are used to relax restrictions on deref
casts through because it's possible to cast different modes from the
heap pointers.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40768>
We have 4 image intrinsic variants now. This enum is useful for
nir_rewrite_image_intrinsic() and it will be used by other NIR passes.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40709>
So we can get through all the casting inserted by heaps.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40649>
We also add a new boolean which indicates that the texture op uses an
embedded sampler.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40649>
The old calculation depended on the sample count, and gave subpar
results for 8x MSAA with standard sample locations. The new calculation
is based on the Intel pass, with some changing of the constants so that
the sample count is always proportional to alpha for 2xMSAA and 4xMSAA
and the addition of rotating the sample mask based on the pixel.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39335>
It's the only driver that uses the pass so it may as well go there.
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40307>
