... just like other-size constants are.
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13223>
Per-primitive is similar to per-vertex attributes, but applies to all
fragments of the primitive without any interpolation involved.
Because they are regular input and outputs, keep track in shader_info
of which I/O is per-primitive so we can distinguish them after deref
lowering. These fields can be used combined with the regular
`inputs_read`, `outputs_written` and `outputs_read`.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10600>
For TGSI, we need the coordinate, comparator, bias, and LOD all together
in the first two vec4 args, and by doing it in the backend we were
generating extra MOVs.
softpipe shader-db results:
total instructions in shared programs: 2985416 -> 2953625 (-1.06%)
instructions in affected programs: 499937 -> 468146 (-6.36%)
total temps in shared programs: 544769 -> 565869 (3.87%)
temps in affected programs: 105469 -> 126569 (20.01%)
i915g shader-db:
total instructions in shared programs: 371625 -> 369594 (-0.55%)
instructions in affected programs: 24903 -> 22872 (-8.16%)
total tex_indirect in shared programs: 11381 -> 11365 (-0.14%)
tex_indirect in affected programs: 43 -> 27 (-37.21%)
LOST: 7
GAINED: 16
The temps increase is the pre-existing issue that we never release temps
for NIR regs, which doesn't matter much for softpipe (just memory/cache
footprint) but does for i915g as seen by shaders that no longer compile
(though overall we seem to win).
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11912>
It's intel-specific, used to get at MSAA compression information.
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11775>
We say that they're for debug only but we don't really have a good
policy around when to set them and when not to. In particular,
nir_lower_system_values and nir_lower_vars_to_ssa which are the chief
producers of SSA values which might reasonably have a name do not bother
to set one. We have some names set from things like BLORP and RADV's
meta shaders but AFAICT, they're setting a name more because it's there
than because they actually care.
Also, most things other than nir_clone and nir_serialize don't bother to
try and preserve them. You can see in the diffstat of this commit
exactly what passes attempt to preserve names. Notably missing from the
list is opt_algebraic which is the single largest source of SSA def
churn and it happily throws names away.
These observations lead me to question whether or not names are actually
useful at all or if they're just taking up space (8B per instruction)
and wasting CPU cycles (to ralloc_strdup on the off chance we do have
one). I don't think I can think of a single time in recent history
where I've been debugging a shader issue and a SSA value name has been
there and been useful. If anything, the few times they are there, they
just throw me off because they mess up the indentation in nir_print.
iris shader-db on my system gets runtime -2.07734% +/- 1.26933% (n=5)
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5439>
For debug on Android, it's useful to be able to print shaders to the
android log interface, since you don't usually have stdout/stderr.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9262>
This allows mediump inputs and outputs to be trivially lowered into packed
16-bit varyings where 1 slot is occupied by 2 16-bit vec4s, without any
packing instructions in NIR and without any conflicts with 32-bit varyings.
The only thing that is changed is IO semantics in intrinsics to get packed
16-bit varyings.
This simplifies supporting 16-bit types for drivers that have 32-bit slots
everywhere except the fragment shader where they can do 16-bit interpolation
on either the low or high half of each slot.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9050>
The same info is in shader_info. Dedupe.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10094>
It would be later used by Turnip in implementation of
VK_KHR_pipeline_executable_properties.
Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8877>
Like SPIR-V and GL_ARB_sparse_texture2, these return a residency code. It
is placed in the destination after the rest of the result. If it's zero,
then the texel is resident. Otherwise, it's not resident.
Besides the larger destination and the residency code, sparse fetches
work the same as normal fetches.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7774>
These will be useful for sparse texture instructions and image load
intrinsics.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7774>
As we now reuse the enums to remain within 64 values, we need to get
the proper name using the stage.
v2: Use enum type for parameter (Jason)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7795>
Make it consistent with nir_intrinsics.py, the unlabelled indices just
before it and the intrinsic builders.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6587>
Halt is like a return for the entire shader or exit() if you prefer to
think of it that way. Once an invocation hits a halt, it's 100% dead.
Any writes to output variables which happened before the halt do,
however, still apply.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7356>
If we were desperate to reduce bits, we could probably also use
shader_in/out for hit attributes as they really are an output from
intersection shaders and read-only in any-hit and closest-hit shaders.
However, other passes such as nir_gether_info like to assume that
anything with nir_var_shader_in/out is indexed using vec4 locations for
interface matching. It's easier to just add a new variable mode.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6479>
These are a bit more tricky than most because they're matrix system
values. We make the intentional choice here to not bother with allowing
indirect addressing of columns for these. Since they're system values,
they may be magically constructed somehow or come from weird hardware so
it's easier on back-ends to just handle any indirects with bcsel.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6479>
For now, we assume its a 64-bit global pointer.
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6479>
The way they're handled is that deref->modes is treated as a bitfield of
possible modes. Variables are required to have a specific mode and
derefs with deref_type_var are as well.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6332>
We rename it to "modes" to make it clear that it may contain more than
one mode and adjust all the uses of nir_deref_instr::modes to attempt to
handle multiple modes.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6332>
This new intrinsic is capable of handling the full range of conversions
from OpenCL including rounding modes and possible saturation. The
intention is that we'll emit this intrinsic directly from spirv_to_nir
and then lower it to ALU ops later.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6945>
We're about to introduce conversion ops which are going to want two
different types. We may as well just split the one we have rather than
end up with three. There are a couple places where this is mildly
inconvenient but most of the time I find it to actually be nicer.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6945>
For UBO accesses to be the same performance as classic GL default uniform
block uniforms, we need to be able to push them through the same path. On
freedreno, we haven't been uploading UBOs as push constants when they're
used for indirect array access, because we don't know what range of the
UBO is needed for an access.
I believe we won't be able to calculate the range in general in spirv
given casts that can happen, so we define a [0, ~0] range to be "We don't
know anything". We use that at the moment for all UBO loads except for
nir_lower_uniforms_to_ubo, where we now avoid losing the range information
that default uniform block loads come with.
In a departure from other NIR intrinsics with a "base", I didn't make the
base an be something you have to add to the src[1] offset. This keeps us
from needing to modify all drivers (particularly since the base+offset
thing can mean needing to do addition in the backend), makes backend
tracking of ranges easy, and makes the range calculations in
load_store_vectorizer reasonable. However, this could definitely cause
some confusion for people used to the normal NIR base.
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6359>
If you've inserted the instruction into a block, then we can get to the
shader. This improves our instruction output, giving you i/o semantics
and variable names in intrinsics.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6496>
The state->shader is missing when used outside of nir_print_shader, just
drop these details in that case. We can fix nir_print_instr() to look up
the shader, but let's also make sure that an instr detached from a shader
(such as one you're constructing but haven't yet inserted) still works.
Fixes: 2b1ef5df4e ("nir: print IO semantics (v2)")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6496>
Lionel Landwerlin
Timur Kristóf
Marek Olšák
Jason Ekstrand
Caio Marcelo de Oliveira Filho
Mike Blumenkrantz
Rhys Perry
Marcin Ślusarz
Emma Anholt
Bas Nieuwenhuizen
Danylo Piliaiev
Gert Wollny
Eric Anholt
Connor Abbott
Jesse Natalie
Karol Herbst