These varyings cannot be packed by the GLSL linkers packing pass
so we need to skip this lowering until later when we can properly
handle them.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15731>
This commit replaces the new_src parameter of nir_ssa_def_rewrite_uses()
with an SSA def, removes nir_ssa_def_rewrite_uses_ssa(), and rewrites
all the users as needed.
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Acked-by: Alyssa Rosenzweig <alyssa@collabora.com>
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9383>
NIR derefs currently have exactly one variable mode. This is about to
change so we can handle OpenCL generic pointers. In order to transition
safely, we need to audit every deref->mode check. This commit adds a
set of helpers that provide more nuanced mode checks and converts most
of NIR to use them.
For simple cases, we add nir_deref_mode_is and nir_deref_mode_is_one_of
helpers. These can be used in passes which don't have to bother with
generic pointers and just want to know what mode a thing is. If the
pass ever encounters generic pointers in a way that this check would be
unsafe, it will assert-fail to alert developers that they need to think
harder about things and fix the pass.
For more complex passes which require a more nuanced understanding of
modes, we add nir_deref_mode_may_be and nir_deref_mode_must_be helpers
which accurately describe the compiler's best knowledge about the given
deref. Unfortunately, we may not be able to exactly identify the mode
in a generic pointers scenario so we have to be very careful when we use
these. Conversion of these passes is left to later commits.
For the case of mass lowering of a particular mode (nir_lower_explicit_io
is one good example), we add nir_deref_mode_is_in_set. This is also
pretty assert-happy like nir_deref_mode_is but is for a set containment
comparison on deref modes where you expect the deref to either be all-in
or all-out.
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 already have the variable so we know the mode exactly. Just use that
instead of the deref mode. If these paths ever have to handle variable
pointers (not likely since they're OpenGL-specific), we can fix them to
handle crazy deref modes then.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6332>
When we replace the original instruction with per-channel operations,
the new instruction should inherint the semantics of the original
instruction.
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6721>
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>
This unindents a whole bunch of code, and fixes the lack of metadata
tracking in the pass (which wasn't called in an opt loop so it hadn't been
caught before).
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6412>
From the SPV_AMD_shader_explicit_vertex_parameter extension:
"Returns the value of the input <interpolant> without any
interpolation, i.e. the raw output value of previous shader
stage."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3578>
Fixes: c1275052 "nir: add type information to load uniform/input and store output intrinsics"
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Erico Nunes <nunes.erico@gmail.com>
Tested-by: Erico Nunes <nunes.erico@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Replace calls to create hash tables and sets that use
_mesa_hash_pointer/_mesa_key_pointer_equal with the helpers
_mesa_pointer_hash_table_create() and _mesa_pointer_set_create().
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Eric Engestrom <eric@engestrom.ch>
This is instead of looking all the way back to the variable which may
not exist for all derefs. This makes this code properly ignore casts
with modes other than the mode[s] we care about (where casts aren't
allowed).
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This will be used on V3D to cut down the size of the VS inputs in the VPM
(memory area for sharing data between shader stages).
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
OpenCL knows vector of size 8 and 16.
v2: rebased on master (nir_swizzle rework)
rework more declarations with nir_component_mask_t
adjust print_var_decl
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This will be removed at the end of the transition, but add some tracking
plus asserts to help ensure that lowering passes are called at the
correct point (pre or post deref instruction lowering) as passes are
converted and the point where lower_deref_instrs() is called is moved.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This is intended to be called before nir_lower_io() so that we
can do some linking optimisations with the results. It can also
be used with drivers that don't use nir_lower_io() at all such
as RADV.
v2: pass mode mask rather than first and last stage integer.
Reviewed-by: Eric Anholt <eric@anholt.net>
If the source is an indirect register, there is ralloc'd data. Copying
with a direct assignment will copy the pointer, but the data will still
belong to the old instruction's memory context. Since we're lowering
and throwing away instructions, that could free the data by mistake.
Instead, use nir_src_copy, which properly handles this.
This is admittedly not a common case, so I think the bug is real,
but unlikely to be hit.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
vc4 wants to have per-scalar IO load/stores so that dead code elimination
can happen on a more granular basis, which it has been doing in the
backend using a multiplication by 4 of the intrinsic's driver_location.
We can represent it properly in the NIR using the first_component field,
though.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Timothy Arceri
Marek Olšák
Mike Blumenkrantz
Emma Anholt
Jason Ekstrand
Jason Ekstrand
Alejandro Piñeiro
Rhys Perry
Eric Anholt
Samuel Pitoiset
Jonathan Marek
Caio Marcelo de Oliveira Filho
Eric Engestrom
Karol Herbst
Rob Clark
Kenneth Graunke