The varying linker isn't changed. The passes are executed after linking
varyings and before linking uniforms if nir->options->lower_io_variables
is true. nir_opt_varyings can move uniforms between shaders and cause them
to be DCE'd.
It requires moving IO deref lowering from st/mesa into the GLSL linker
and nir_opt_varyings should be added at the same time because IO deref
lowering alone would disable IO optimizations in st/mesa such as
compaction.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26819>
Highlights:
- all shader stages and all input/output types are handled, including
inputs and outputs with multiple vertices
- the optimizations performed are: unused input/output removal, constant
and uniform propagation, output deduplication, inter-shader code motion,
and compaction
- constant and uniform propagation and output deduplication work even
if a shader contains multiple stores of the same output, e.g. in GS
- the same optimizations are also performed between output stores and
output loads (for TCS)
- FS inputs are packed agressively. Only flat, interp FP32, and interp
FP16 can't be in the same vec4. Also, if an output value is
non-divergent within a primitive, the corresponding FS input is
opportunistically promoted to flat.
The big comment at the beginning of nir_opt_varyings.c has a detailed
explanation, which is the same as:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/8841
dEQP and GLCTS have incorrect tests that fail with this, see:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/10361
Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26819>
MacOSs 'sys/stat.h' version of 'stat' doe snot have the 'st_mtim' that is used on other systems.
The change allows MacOS to use 'st_mtime' without affecting the behaviour on any other platform.
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28130>
We don't attempt to recreate a nir implementation of the symbol table
instead here we simply use location to find the variables we need to
validate.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28142>
Instead of the previous fragile attempt to handle sparse_resident_and
by crawling deref chains, we now insert an is_sparse_resident_zink
intrinsic immediately after the tex or sparse_load intrinsic and define
Zink's sparse resident codes to always be 0/1. Then sparse_resident_and
becomes iand and is_sparse_texels_resident becomes != 0 and everything
is well-defined and robust.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28123>
We were using this to remove unreachable instructions following
jumps. The previous patch allowed glsl to nir to handle these
instructions so this call is no longer needed.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27288>
Unlike in GLSL IR it is illegal to add an instruction to a block
following a jump in NIR. Here we add code to the glsl_to_ir pass
to remove any such instructions before they are processed i.e.
we remove them as soon as we process the jumps.
Handling this in glsl to nir allows us to avoid depending on the
lower_jumps() pass being called directly before glsl to nir when
it otherwise doesn't need to be called an additional time.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27288>
visit_exec_list() has always called foreach_in_list_safe() here
were rename that version to visit_exec_list_safe() and create
a version that calls the non-safe foreach call.
There are only 2 users of visit_exec_list() we change lower_jumps
to use the renamed version and leave glsl_to_nir() to use the
non-safe version as it never deletes the current instruction and
in the following patch we will add code that may delete the next
instruction meaning the safe version would be unsafe to use.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27288>
needed by GLSL compiler optimizations that have unlowered sysvals
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28049>
Encoding of cmat_desc is overwriting the base_type with the type of the
elements of the matrix.
Fixes: 2d0f4f2c17 ("compiler/types: Add support for Cooperative Matrix types")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28086>
This intrinsic helps to read the W coordinate stored in the QPU register
when initializing the input data for the fragment shaders.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28072>
If the app requests a swizzle on the shadow sampler which doesn't just
return the red channel or literal 0s/1s, we'll crash attempting to build
the result vector. Use something that's probably valid.
Cc: mesa-stable
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28001>
These don't seem useful, since they're already done in the early optimizations.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27335>
These depend on the subgroup invocation id, so they are divergent.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes: df86c5ffb3 ("nir: add divergence analysis pass.")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27962>
Commit 90e364edb0 contained a typo in the glsl_dvec4_type() helper,
instead returning a glsl_ivec4_type. As an ivec4 is 2x smaller than
a dvec4, this also broke piglit sanity on crocus/hsw.
This also fixes the dvec2 helper, though it has not been specifically
tested anywhere.
Fixes: 90e364edb0 ("compiler/types: Add a few more helpers to get builtin types")
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27917>
Use the built-in function from ir_instruction to make sure that we are actually
not casting to anther type by mistake.
Signed-off-by: Corentin Noël <corentin.noel@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27114>
These will be used in future to do more validation on functions as
the glsl nir linker is expanded. The first use is in the following
patch.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27841>
This adds support for array and struct function returns in the glsl
to nir pass allowing us to avoid extra calls to the glsl IR
optimisation loop.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27108>
This adds support for array and struct function params in the glsl
to nir pass allowing us to avoid extra calls to the glsl IR
optimisation loop.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27108>
