This adds a generic lowering pass for coop mat flexible dimensions.
This should be suitable for all drivers that implement coop mat2 flexible dimensions
or even just lowering sw exposed sizes to hw sizes.
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36544>
a bunch of drivers have versions of this, might as well make a common one.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: John Anthony <john.anthony@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36516>
See the comment at the top file :-)
The ideas in this pass are based on LLVM. The implementation itself is from
scratch because have you /tried/ to read that thing?
Because LLVM and therefore prop drivers do these optimizations, this should help
narrow Mesa's performance gap with the blobs.
This probably needs some tuning for best results on other ISAs, but the stats
for AGX speak for themselves, see next commits.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36147>
This can be used to move input loads to top after we stop using
nir_lower_io_vars_to_temporaries that does it unconditionally.
It's more flexible than what nir_lower_io_vars_to_temporaries was doing,
and can be extended to handle any instructions.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36018>
This is a partial replacement for nir_lower_io_vars_to_temporaries.
It supports all input and output loads. It doesn't handle stores.
The motivation is to improve compile times.
The main differences compared to nir_lower_io_vars_to_temporaries are:
- it only lowers indirect loads to temps and doesn't touch direct loads
which improves compile times and removes the need for nir_lower_vars_to_ssa
afterward because indirect temp access can't be lowered to SSA
- it doesn't move all input loads to the top; it only moves those input
loads to the top whose indirect loads are lowered (which improves
register usage because direct loads are not moved)
- it doesn't have to deal with complexities of variables
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36018>
The first pass computes which shader instructions contribute to each
output. It can be used to query how data flows within shaders towards
outputs.
The second pass computes which shader input components and which types of
memory loads are used to compute shader outputs.
The third pass uses the second pass to gather which input components are
used to compute pos and clip dist outputs, which input components are used
to compute all other outputs, and which input components are used to
compute both. This will be used by compaction in nir_opt_varyings for
drivers that split TES into a separate position cull shader and varying
shader to make it less likely that the same vec4 inputs are needed in both.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32262>
This pass was originally based on a similar pass from Intel but it's
grown support for some fancy stuff like fp64 -> fp16 conversion
splitting with proper rounding.
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Reviewed-by: Benjamin Lee <benjamin.lee@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34126>
Arm and NVIDIA hardware both have this as a bit you can set on the
texture instruction so we may as well have a shared pass for it.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33402>
The nir_tcs_info struct is like nir_xfb_info in the sense that
it's very specialized and not often used, so it deserves its own
header too.
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33439>
See comment in the pass for motivation. To be used for asahi clc.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32226>
This does shader analysis that is more niche than regular shader info.
It's planned to be used by nir_restructure_tcs_flow as discussed here:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/11910
It's also useful for driver-specific passes.
The code for gathering "all_invocations_define_tess_levels" is copied
from radeonsi. The rest is new.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31447>
Inspired by a commit message in !30934, I set about optimizing the code
generated for nir_copysign. It would be possible to just implement an
opt_algebraic pattern for the specific values used by nir_copysign, but
this casts a slightly larger net.
As noted in a comment in the code, there may be variations of the
pattern that this pass misses. The opt_algebraic pattern would miss them
too.
v2: Use nir_def_replace. Suggested by Alyssa. Allow more "root"
instruction types. Suggested by Georg.
v3: Treat extract_u16(x, 0) as (x & 0x0000ffff), and treat extract_u8(x,
0) as (x & 0x000000ff).
v4: Use nir_scalar. Suggested by Georg.
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31006>
nir.h includes:
- "compiler/glsl_types.h" -> inc_src is needed
- "util/u_atomic.h" -> "no_extern_c.h" -> inc_include needed
This makes it possible to use rust's bindgen with only nir.h
as specified include.
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Acked-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30359>
Instead of having a hardcoded list of endian-independent format aliases
in the header, generate them from the format definitions.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29649>
This simple LICM pass hoists all loop-invariant instructions
from the loops' top-level control flow, skipping any nested CF.
The hoisted instructions are placed right before the loop.
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28783>
