If the data is uniform, then it's really a uniform copy. If the index is
uniform, then it's really a read_invocation.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Fixes: 9cc4c2c916 "spirv: Add a vtn_decorate_pointer helper"
Tested-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Otherwise, we fail validation and potentially generate invalid code.
Let's fix up the mode of the accesses to the variable.
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Currently the linker do all the work then check for the limits, which
means num_textures and num_images in shader_info may have to store more
than the limit. This breaks down now since shader_info was packed and
doesn't expect to store larger invalid values.
To fix this, pull the check before we set the counts in shader_info.
Add necessary plumbing to make sure we bail once those errors are
found.
Fixes: 84a1a2578d ("compiler: pack shader_info from 160 bytes to 96 bytes")
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Currently the linker do all the work then check for the limits, which
means num_ssbos and num_ubos in shader_info may have to store more
than the limit. This breaks down now since shader_info was packed and
doesn't expect to store larger invalid values.
To fix this, pull the check before we set the counts in shader_info.
One drawback of this approach is that for some cases we might not see
the collected errors from various stages, but bail as soon as a stage
breaks the limits.
Fixes: 84a1a2578d ("compiler: pack shader_info from 160 bytes to 96 bytes")
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This new helper is better than nir_bitcast_vector because it's able to
take a (mostly) arbitrary range from the source vector. The only
requirement is that first_bit has to be aligned to the smaller of the
two bit sizes. It wouldn't be hard to lift that requirement but it's
reasonable for now.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This is a single opcode, at least on newer Midgard chips. It's easier to
have this represented in NIR rather than trying to optimize out the
conversions, so let's add the intrinsic.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
This commit makes two major changes. First, we add a second case to
OpLoad for sampled images which constructs a vtn_sampled_image and
stashes that rather than stashing a pointer to the combined image
sampler like we do for bare samplers and images. This should be more in
line with how SPIR-V is intended to work and hopefully doesn't cause any
weird problems. The second is a rework of vtn_handle_texture to assume
that everything has an image but not everything has a sampler. We also
add a vtn_fail_if for the case where a texture instructions require a
sampler but none is provided.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This helper makes a duplicate copy of the pointer if any new access
flags are set at this stage. This way we don't end up propagating
access flags further than they actual SPIR-V decorations. In several
instances where we create new pointers, we still call the decoration
helper directly because no copy is needed.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
We have types on all vtn_values at this point so there's no reason to
carry the redundant type information.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
The stage specific fields of shader_info are in an union. We've
likely been lucky that this value was either overwritten or ignored by
other stages. The recent change in shader_info layout in commit
84a1a2578d ("compiler: pack shader_info from 160 bytes to 96 bytes")
made this issue visible.
Fixes: cf2257069c ("nir/spirv: Set a default number of invocations for geometry shaders")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
We add two new IR3 specific nir intrinsics that map to the new condend
and endpatch instructions.
Signed-off-by: Kristian H. Kristensen <hoegsberg@google.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@gmail.com>
These provide the iovas for system memory buffers used for
tessellation as well as a new HW specific system value.
Signed-off-by: Kristian H. Kristensen <hoegsberg@google.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@gmail.com>
These intrinsics take a ivec2 for the 64 bit base address and a
integer offset.
Signed-off-by: Kristian H. Kristensen <hoegsberg@google.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@gmail.com>
This commit fixes the following warning:
../src/compiler/nir/nir.c:1827:1: warning: ‘dest_is_ssa’ defined but not used [-Wunused-function]
1827 | dest_is_ssa(nir_dest *dest, void *_state)
| ^~~~~~~~~~~
Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit fixes the following warning:
../src/compiler/glsl/gl_nir_link_uniforms.c: In function ‘find_and_update_previous_uniform_storage’:
../src/compiler/glsl/gl_nir_link_uniforms.c:166:16: warning: unused variable ‘num_blks’ [-Wunused-variable]
166 | unsigned num_blks = nir_variable_is_in_ubo(var) ?
| ^~~~~~~~
Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
The maximum number of descriptor sets is indeed 32 but without
the sign bit.
The maximum number of bindings for RADV is way larger, keep it
as 32-bit.
Fixes: 96e6ef80d9 ("nir: pack the rest of nir_variable::data")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
That means we have only 30 bits for object IDs, because 2 bits are
sometimes used for something else.
This decrease the uncompressed shader size for the biggest Borderlands 2
shader from 33.6 KB to 23.2 KB. (31% decrease)
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Fixes a ton of regressions in image load store tests.
Fixes: 4319cc8c0f ("nir: pack nir_variable::data::xfb_*")
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This prevents some additional optimizations that would change the
original result. This includes things like (b < a && b < c) => b <
min(a, c) and !(a < b) => b >= a. Both of these optimizations were
specifically observed in the piglit tests added in piglit!160.
This was discovered while investigating
https://gitlab.freedesktop.org/mesa/mesa/issues/1958. However, the
problem in that issue was Chrome or Angle is replacing calls to isnan()
with some stuff that we (correctly) optimize to false. If they had left
the calls to isnan() alone, everything would have just worked.
No shader-db changes on any Intel platform.
I also tried marking the comparison generated by the isnan() function
precise. The precise marker "infects" every computation involved in
calculating the parameter to the isnan() function, and this severely
hurt all of the (few) shaders in shader-db that use isnan().
I also considered adding a new ir_unop_isnan opcode that would implement
the functionality. During GLSL IR-to-NIR translation, the resulting
comparison operation would be marked exact (and the samething would need
to happen in SPIR-V translation).
This approach taken by this patch seemed easier, but we may want to do
the ir_unop_isnan thing anyway.
Fixes: d55835b8bd ("nir/algebraic: Add optimizations for "a == a && a CMP b"")
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Python has the identity operator `is`, and the equality operator `==`.
Using `is` with strings sometimes works in CPython due to optimizations
(they have some kind of cache), but it may not always work.
Fixes: 96c4b135e3
("nir/algebraic: Don't put quotes around floating point literals")
Reviewed-by: Matt Turner <mattst88@gmail.com>
This function was added in 7e414b5864 to work around a defect in
lower_output_reads(). As of the previous commit no NIR driver calls
lower_output_reads().
This change means we don't need the special GLSL IR style
gl_FragData handling for building the resource list in a NIR based
linker.
No shader-db change on SKL i965.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
nir_lower_point_size.c was not build into the libmesa_nir library for non-meson
builds. However it was included in the meson build.
This patch fixes that.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Vulkan requires that only one bit for the ordering is set, but old
versions of GLSLang just set all the bits. This was fixed as part of
c51287d744
but we can still find older versions (or shaders compiled with it)
around.
So instead of failing, emit a warning and fallback to the effective
result of any combination of multiple bits: AcquireRelease.
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2018
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Better be safe, even if we could technically avoid this for
some fields.
Cc: <mesa-stable@lists.freedesktop.org>
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/1999
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Tested-by: Witold Baryluk <witold.baryluk@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
MAX_VARYINGS_INCL_PATCH subtracts VARYING_SLOT_VAR0 giving us a size
that's too small, so BITSET_SET writes words out of bounds, corrupting
the stack and causing all kinds of chaos. VARYING_SLOT_TESS_MAX is
the right value to use here, as it's the largest location.
Closes: 2002
Fixes: ee2050b111 ("nir: Use BITSET for tracking varyings in lower_io_arrays")
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
