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286 Commits

Author SHA1 Message Date
Daniel Schürmann 1f98d8c804 aco: fix shared subdword loads 
Shared subdword loads don't need byte alignment as they are split
into multiple loads if necessary.

Fixes: 5cde4989d3 ('aco: remove unnecessary split- and create_vector instructions for subdword loads')
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5441>
 2020-06-12 13:56:12 +00:00
Samuel Pitoiset 7b44f549b3 aco: implement radv_enable_mrt_output_nan_fixup workaround 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5359>
 2020-06-12 14:43:57 +02:00
Rhys Perry 56345b8c61 aco: allow reading/writing upper halves/bytes when possible 
Use SDWA, opsel or a different opcode to achieve this.

shader-db (Navi, fp16 enabled):
Totals from 42 (0.03% of 127638) affected shaders:
VGPRs: 3424 -> 3416 (-0.23%)
CodeSize: 811124 -> 811984 (+0.11%); split: -0.12%, +0.23%
Instrs: 156638 -> 155733 (-0.58%)
Cycles: 1994180 -> 1982568 (-0.58%); split: -0.59%, +0.00%
VMEM: 7019 -> 7187 (+2.39%); split: +3.45%, -1.05%
SMEM: 1771 -> 1770 (-0.06%); split: +0.06%, -0.11%
VClause: 1477 -> 1475 (-0.14%)
Copies: 13216 -> 12406 (-6.13%)
Branches: 5942 -> 5901 (-0.69%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5040>
 2020-06-10 15:05:11 +00:00
Rhys Perry 98060ba0f0 aco: p_extract_vector in 64-bit u2f16/i2f16 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5040>
 2020-06-10 15:05:11 +00:00
Daniel Schürmann 5cde4989d3 aco: remove unnecessary split- and create_vector instructions for subdword loads 
This helps GFX6/7 by removing unnecessary shuffle code.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5226>
 2020-06-09 21:25:38 +00:00
Samuel Pitoiset 5446e3cf2e aco: fix alignment of vectors with 4 elements 
I think this case was just missing.

This fixes a bunch of 16-bit storage related CTS failures like
dEQP-VK.ssbo.phys.layout.single_basic_type.std430.u16vec4.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5226>
 2020-06-09 21:25:38 +00:00
Samuel Pitoiset c7bd0f8cd5 aco: implement 8-bit/16-bit conversions on GFX6-GFX7 
Use v_bfe to implement small bitsize conversions because the
compiler probably optimizes this better.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5226>
 2020-06-09 21:25:38 +00:00
Samuel Pitoiset 6391f9ab4c aco: fix nir_intrinsic_quad_* with 8-bit in GFX6-GFX7 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5327>
 2020-06-05 16:04:06 +02:00
Samuel Pitoiset a521c67d22 aco: implement 16-bit nir_intrinsic_quad_* on GFX6-GFX7 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5227>
 2020-06-03 19:48:40 +02:00
Timur Kristóf 045c9ffa7d aco: Implement subgroup shuffle on GFX6-7. 
GFX6 and GFX7 don't have the ds_bpermute (or permute) instruction,
but we would like to support subgroup shuffle on these old GPUs.

So we introduce a new pseudio instruction which will be lowered
to an "unrolled loop" that emulates bpermute on GFX6 and GFX7
using readlane instructions, while also respecting the exec mask
thanks to v_cmpx.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5223>
 2020-06-02 21:12:12 +00:00
Timur Kristóf 14a5021aff aco/gfx10: Refactor of GFX10 wave64 bpermute. 
The emulated GFX10 wave64 bpermute no longer needs a linear_vgpr,
so we don't consider it a reduction anymore. Additionally, the
code is slightly reorganized in preparation for the GFX6 emulated
bpermute.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5223>
 2020-06-02 21:12:12 +00:00
Rhys Perry 01ce7887bf aco: fix 64-bit shared_atomic_exchange 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4880>
 2020-05-28 10:34:03 +00:00
Samuel Pitoiset 94570e87bd aco: add support for bias/lod with texture gather 
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/5147>
 2020-05-25 08:51:10 +02:00
Samuel Pitoiset cecd4aad46 aco: implement nir_intrinsic_shader_clock with device scope 
Use s_memrealtime instead.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5117>
 2020-05-24 20:37:52 +02:00
Samuel Pitoiset b3c87c52ea aco: implement 8-bit/16-bit nir_intrinsic_quad_* 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4494>
 2020-05-21 15:06:48 +00:00
Samuel Pitoiset dfa62d97a0 aco: implement 8-bit/16-bit nir_intrinsic_{shuffle,_read_invocation} 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4494>
 2020-05-21 15:06:48 +00:00
Samuel Pitoiset f03e56eaf0 aco: implement 8-bit/16-bit nir_intrinsic_read_first_invocation 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4494>
 2020-05-21 15:06:48 +00:00
Samuel Pitoiset 86e2b03e3f aco: implement 8-bit/16-bit reductions 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4494>
 2020-05-21 15:06:48 +00:00
Samuel Pitoiset 1647e098e9 aco: implement 16-bit interp 
For 16-bit bank LDS (ie. Kabini/Stoney) we need a slightly different
path. It's completely untested though because I don't have these
chips but according to vkpipeline-db the generated assembly seems fine.

Note that 16-bit I/O is currently only exposed on GFX9+ for both
compiler backends.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset 3fba5bb9cc aco: implement 16-bit vertex fetches with tbuffer_load_format_d16_* 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset 7ffd394605 aco: implement 8-bit/16-bit mov's with p_create_vector 
ACO doesn't lower 8-bit/16-bit mov's in NIR.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2997
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset 860b4d16f4 aco: allow to load/store 16-bit values in VMEM for tess and geom 
We only have to adjust some assertions to allow storing/loading
16-bit values.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset 9bd3b67163 aco: convert 16-bit values before exporting MRTs 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset 462a5fe6f4 aco: store 16-bit temporary outputs as v2b 
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4966>
 2020-05-19 17:05:05 +00:00
Samuel Pitoiset aaf5706aa3 aco: add support for texturing with clamped LOD 
This is a requirement for the shaderResourceMinLod feature which
allows to clamp LOD. This uses all image_sample_*_cl variants.

All dEQP-VK.glsl.texture_functions.texture*clamp.* pass.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4989>
 2020-05-14 10:05:44 +00:00
Samuel Pitoiset 47a769143b aco: remove useless check for nir_tex_src_bias 
I think only nir_texop_txb can have a bias operand anyways.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4989>
 2020-05-14 10:05:44 +00:00
Jason Ekstrand ca2d53f451 nir: Make "divergent" a property of an SSA value 
v2: fix usage in ACO (by Daniel Schürmann)

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4062>
 2020-05-13 18:49:22 +00:00
Samuel Pitoiset 3fba0a7a6f aco: fix 64-bit trunc with negative exponents on GFX6 
v_frexp_exp returns the exponent as an unsigned value.

Also, v_ashr returns either 0 or -1 depending on the sign of the
source operand, but what we want is only the sign bit.

Fixes a bunch of recent dEQP-VK.glsl.builtin.precision_double.* tests.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4921>
 2020-05-11 08:31:23 +02:00
Samuel Pitoiset 90d9f9a37e aco: remove unecessary p_split_vector with v2b reg class 
Should be fine now that RA take full registers for v2b if it's
not an SDWA instruction.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4879>
 2020-05-05 08:50:10 +02:00
Timur Kristóf fdbb296853 aco: Remember VS/TCS output driver locations. 
Instead of relying on calling shader_io_get_unique_index repeatedly,
remember the which output driver location corresponds to which
varying slot.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4388>
 2020-04-29 11:51:04 +00:00
Timur Kristóf ab07c4ea70 aco: Use context variables instead of calculating TCS inputs/outputs. 
VS needs the number of TCS inputs, and TES needs the number of TCS
outputs.

It is error-prone to repeat those calculations in both instruction
selection and setup. Just set them in one place instead.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4388>
 2020-04-29 11:51:04 +00:00
Rhys Perry 9392ddab43 aco: consider blocks unreachable if they are in the logical cfg 
unreachable was true if the last block is unreachable in the linear cfg,
but it should also be true if it is unreachable in the logical cfg.

Fixes dEQP-VK.graphicsfuzz.for-with-ifs-and-return

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 8d8c864beb
    ('aco: improve check for unreachable loop continue blocks')

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4764>
 2020-04-29 11:07:09 +00:00
Samuel Pitoiset 60cc065c7d aco: fix adjusting the sample index with FMASK if value is negative 
The SPIR-V spec doesn't say explicitly that the sample index
must be an unsigned integer.

This fixes crashes with some new VK_EXT_robustness2 tests.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4775>
 2020-04-29 07:29:54 +00:00
Samuel Pitoiset a112ec4c11 aco: fix nir_texop_texture_samples with NULL descriptors 
With VK_EXT_robustness2, descriptors can be NULL and the number of
samples returned by nir_texop_texture_samples should be 0.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4775>
 2020-04-29 07:29:54 +00:00
Rhys Perry 3ee3ad561a aco: fix vgpr nir_op_vecn with sgpr operands 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4772>
 2020-04-28 23:16:55 +00:00
Rhys Perry bcd9467d5c aco: improve sub-dword emit_split_vector() with sgprs 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry a3dc1441f0 aco: clobber scc in s_bfe_u32 in get_alu_src() 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 7db7206631 aco: allow 8/16-bit shared loads 
These should work now

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 48b7beb7b0 aco: add and use get_buffer_store_op() helper 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 936b70c8cf aco: refactor visit_store_scratch() to use new helpers 
Should support 8/16-bit stores now

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 18817041f7 aco: refactor visit_store_global() to use new helpers 
Should support 8/16-bit stores now

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry c7bd69b3ae aco: refactor visit_store_ssbo() to use new helpers 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry f75c830433 aco: refactor store_vmem_mubuf() to use new helpers 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 98b4cc7110 aco: refactor store_lds() to use new helpers 
It should also work correctly for 8/16-bit stores

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 562353e1f1 aco: add helpers for splitting stores 
split_store_data() splits a vector and p_as_uniforms it if needed.

scan_write_mask()/advance_write_mask() are similar to
u_bit_scan_consecutive_range(), but makes it easier to only clear part of
the range and will also give ranges for zero'd bits.

split_buffer_store() is a helper for splitting VMEM/SMEM stores.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 211a9f2057 aco: use emit_load helper for VMEM/SMEM loads 
Also implements 8/16-bit loads for scratch/global.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 57e6886f98 aco: refactor load_lds to use new helpers 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 542733dbbf aco: add emit_load helper 
This helper is used for recombining split loads, passing the result to
p_as_uniform, aligning the offset down and shifting it right if needed and
handling large constant offsets.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Rhys Perry 69b92db131 aco: be more careful about using SMEM for load_global 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>
 2020-04-24 18:52:54 +00:00
Timur Kristóf 62ff2ff808 aco: Move s_setprio to correct place after the gs_alloc_req. 
Previously the setprio was inside the branch, so it would only reset
the priority on the first wave, but not the others.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4536>
 2020-04-24 17:58:57 +00:00