The hangover DXVK builds we want to use for arm64 CI hit this path, and we
have a perfectly reasonable fallback for handling this case (ignore the
sampler, as glslang should have done).
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40959>
With SPV_KHR_constant_data, it's allowed to specialize array of
constants.
RustiCL changes are from Karol Herbst <kherbst@redhat.com>.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41046>
The polynomial used for asin_expr() was suboptimal (and its source was
not documented).
A better approximation is found in the _Handbook_of_Mathematical_Functions_
by Abramowitz and Stegun, which is used in Nvidia's Cg toolkit. However,
while this approximation gives a good absolute error bound, its relative
error exceeds the 4096 ulp allowed by the Vulkan spec. Taking a page
from the spirv implementation of asin(), we implement a piecewise
approximation where a Taylor series is used for small values of |x|.
This patch also harmonizes the GLSL and Vulkan implementations by moving
the implementation to common code (nir_builder).
Running tests on asin() with a grid of 64000 samples between 0.0 and +1.0,
the original asin() at 32 bits has:
```
glsl spirv
RMSE: 1.756451e-04 1.609091e-04
worst abs error: 3.904104e-04 at 0.937001 3.904104e-04 at 0.937001
worst ulp error: 11800 at 6.2499e-05 3826 at 0.841331
```
whereas the new implementation has for both:
```
RMSE: 2.528056e-05
worst abs error: 4.962087e-05 at 0.451149
worst ulp error: 2379 at 0.215106
```
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Acked-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40862>
These lowered versions map to what Jay can deal with. The hardware is more
flexible but we're not due to data model restrictions. We choose to lower to get
us off the ground, we can revisit later.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40835>
It's required by descriptor heap. There is already a NIR pass that
optimizes non-uniform access, so this should be mostly safe.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40768>
This isn't required for deref instructions because it's possible to
get the image format back from the variable but it will be useful for
descriptor heap.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40768>
This would read OOB and crash because data type is optional per the
SPIRV spec.
Original patch by Faith Ekstrand <faith.ekstrand@collabora.com>.
Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40731>
This codepath had a bug (always setting `elems[0]`) since it was last
reworked, but there's no subgroup instruction that uses this helper and
support Composites, so it can be replace with an assert.
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40356>
We can produce a transposed value sometimes, and we have to make sure
that val->transposed is also updated when that happens.
Noticed by inspection after the previous commit.
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40017>
The way it is, this optimization is too aggressive and may generate
code way worse than the original. Remove it from here, so drivers
consuming the generated SPIR-V will be able to make their own
more-informed decisions later.
Let's follow the same strategy of nir_load_liblc.c and just set the
limit to 0.
For indirect copies in Anv (not merged yet), block compressed formats
require some expensive divisions, so I put them all inside 'if'
statements that should never run on normal formats. This optimization
made us always run all the divisions all the time, tanking the
performance of the shader on small copies.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40020>
They were already being handled explicitly in vtn_alu, so just handle
them directly for spec constants too -- that has to do special work
for conversions anyway. Remove the bit-size parameters from the function.
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40157>
There was an assumption that if the instruction had non-native float
as a source, the first source would have such type. This doesn't
hold for Select, and the code failed in two ways
- The boolean source of Select was being converted to the non-native
float type.
- The loop that resolves the bit-size for unsized operands would
trip at `assert(i == 0)` because Select has more than one source.
Re-organize the code to track the types of the sources independently,
and fix both issues above.
Fixes: 90e1b12890 ("spirv: Add bfloat16 support to SpecConstantOp")
Fixes: 51d3c4c889 ("spirv: support float8 spec constant op")
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40157>
Only used by Convert operations, so just pass 0 from callers that
are not Convert and clarify that in the code.
Backport-to: 26.0
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40157>
The number of fields comes from the shader, so it could be a value large
enough that using alloca would be problematic.
Fixes: 2a023f30a6 ("nir/spirv: Add basic support for types")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39866>
The kernel capabilty has the `FPFastMathMode` decoration, but not the
`FPFastMathDefault` execution mode, so a SPIR-V module not using
`SPV_KHR_float_controls2` has no way of setting any defaults.
Fixes: 9da2d21804 ("vtn: implement default fp_math_ctrl without using execution mode")
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Tested-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39790>
libclc doesn't so we have to. fixes math_brutefore cbrt on Iris.
Co-authored-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39794>
