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2616 commits

Author SHA1 Message Date
Timur Kristóf
9fb9e54d69 aco: Remove subgroup_id and num_subgroups intrinsics. 
These are lowered in NIR now.

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/24005>
 2023-07-14 12:17:24 +00:00
Timur Kristóf
dc3bbd351a aco: Fix subgroup_id intrinsic on GFX10.3+. 
Change this to match how it works in the LLVM backend.

Cc: mesa-stable
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/24005>
 2023-07-14 12:17:24 +00:00
Timur Kristóf
127999989a aco: Add MESA_SHADER_KERNEL to instruction selection setup. 
Treat it the same way as MESA_SHADER_COMPUTE.

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/24112>
 2023-07-12 11:24:44 +00:00
Daniel Schürmann
7e4870e8e5 amd: Do shader binary alignment for prefetch at memory allocation time. 
This makes it consistent between drivers and compilers.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23799>
 2023-07-11 12:01:45 +00:00
Daniel Schürmann
437bf4fccb amd: move end-of-code marker padding to ACO. 
This makes it consistent between drivers and compilers.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23799>
 2023-07-11 12:01:45 +00:00
Daniel Schürmann
c778803d67 aco/assembler: change prefetch mode on GFX10.3+ during loops if beneficial 
Totals from 8864 (6.68% of 132726) affected shaders: GFX11

CodeSize: 90776128 -> 90923760 (+0.16%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23748>
 2023-07-11 07:15:43 +00:00
Daniel Schürmann
b9c5b273b0 aco/assembler: align loops if it reduces the number of cache lines 
This is especially beneficial on GFX6-9.

Totals from 11229 (8.46% of 132726) affected shaders: GFX11

CodeSize: 109608640 -> 109840916 (+0.21%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23748>
 2023-07-11 07:15:43 +00:00
Daniel Schürmann
de8ecc127e aco/assembler: align resume shaders with cache lines 
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23748>
 2023-07-11 07:15:43 +00:00
Konstantin Seurer
20beebb041 amd: Move ac_hw_stage to its own file 
Otherwise ACO has to include ac_shader_util.h which also includes NIR.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Friedrich Vock <friedrich.vock@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23906>
 2023-07-03 21:12:45 +00:00
Rhys Perry
ae48fae658 aco: remove 64-bit integer conversion opcodes 
These are handled by nir_lower_int64 now.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23926>
 2023-07-03 10:38:28 +00:00
Rhys Perry
25c49e491f aco,ac/llvm,ac/nir,vtn: unify cube opcodes 
fossil-db (navi21):
Totals from 17068 (12.79% of 133461) affected shaders:
Instrs: 24743703 -> 24743572 (-0.00%); split: -0.00%, +0.00%
CodeSize: 132579952 -> 132580620 (+0.00%); split: -0.00%, +0.00%
VGPRs: 1227840 -> 1227984 (+0.01%)
Latency: 403180114 -> 403251188 (+0.02%); split: -0.00%, +0.02%
InvThroughput: 75311302 -> 75320892 (+0.01%); split: -0.00%, +0.01%
VClause: 415400 -> 415402 (+0.00%); split: -0.00%, +0.00%
Copies: 1715404 -> 1715258 (-0.01%); split: -0.01%, +0.01%

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com> (r600)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23930>
 2023-06-30 15:35:03 +00:00
Georg Lehmann
5099137612 aco/optimizer: delete s_bitcmp optimization 
This is now done in NIR.
No Foz-DB changes.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23298>
 2023-06-29 13:39:30 +00:00
Georg Lehmann
573e98f34a aco: implement nir_op_bitz/bitnz 
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23298>
 2023-06-29 13:39:30 +00:00
Rhys Perry
58f8e0e2a0 nir,aco: add INCLUDE_HELPERS index to reduce intrinsic 
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23621>
 2023-06-27 18:53:50 +00:00
Rhys Perry
c5fc89019b aco: include helpers in emit_uniform_{reduce,scan} 
Found by inspection.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23621>
 2023-06-27 18:53:49 +00:00
Vitaliy Triang3l Kuzmin
dda425df09 aco: Implement fragment shader interlock intrinsics 
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
e0f4b52559 aco: Add Primitive Ordered Pixel Shading waitcnt rules 
When letting the overlapping waves enter their ordered sections, there must
be no memory accesses to resources which need primitive-ordered access that
are still pending, or there would be a race between the current wave and
the overlapping waves.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
a87628cd08 aco: Send MSG_ORDERED_PS_DONE where necessary 
If the wave has set the Primitive Ordered Pixel Shading packer ID hardware
register, it must send MSG_ORDERED_PS_DONE once before the program ends.
It's also safe to send the message if the packer ID register hasn't been
set yet, therefore the message may be sent conservatively. For simplicity,
to ensure that it's sent on all execution paths after setting the packer ID
register, always sending it from a top-level block. This is required for
GFX9-10.3 POPS.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
2194e8bd82 aco: Add Primitive Ordered Pixel Shading scheduling rules 
Implementing the acquire/release semantics of fragment shader interlock
ordered section in Vulkan, and preventing reordering of memory accesses
requiring primitive ordering out of the ordered section.

Also, the ordered section should be as short as possible, so not reordering
the instructions awaiting overlapped waves upwards, and the exit from the
ordered section downwards.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
6082e126eb aco: Skip waitcnt insertion in the discard early exit block 
Waits are needed for early exits from inside a Primitive Ordered Pixel
Shading ordered section, but that code doesn't insert them reliably anyway
because it doesn't obtain the counters for the exact locations of the
jumps, which may be anywhere inside the predecessor blocks.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
f8e744f07f aco: Add Primitive Ordered Pixel Shading pseudo-instructions 
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
94d2888da2 aco: Add s_wait_event argument bit definitions 
A wait for export_ready (if the corresponding bit is not set in the
instruction) is done to enter the Primitive Ordered Pixel Shading ordered
section on GFX11.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:04 +00:00
Vitaliy Triang3l Kuzmin
b892f31e4d ac: Define POPS collision wave ID argument SGPR 
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:03 +00:00
Vitaliy Triang3l Kuzmin
308a5ea43a aco: Support pops_exiting_wave_id PhysReg usage 
pops_exiting_wave_id is a volatile ALU source operand containing the ID of
the latest wave that hasn't exited yet, for comparing with the newest
overlapped wave ID in overlapping waves.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Vitaliy Triang3l Kuzmin <triang3l@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22250>
 2023-06-26 15:58:03 +00:00
Alyssa Rosenzweig
bbdbab15fc aco: Drop NIR parallel copy handling 
Backends never see these instructions.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Suggested-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23831>
 2023-06-23 13:25:22 +00:00
Timur Kristóf
3b21c59fc3 aco: Remove unneeded stage related info fields. 
Cleanup of various fields with redundant information.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23597>
 2023-06-23 12:49:05 +00:00
Timur Kristóf
bc971ba2c7 aco: Use aco_shader_info::hw_stage instead of guessing. 
With this change, ACO is going to rely on the caller to set
the HW stage and will no longer guess it from the input shaders.

This will help enable compiling merged shaders separately,
but that will need further changes in instruction selection.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23597>
 2023-06-23 12:49:05 +00:00
Timur Kristóf
0fef6b95ca aco: Add hw_stage field to aco_shader_info. 
Unused in this commit, but this is going to replace the shader
stage selection inside ACO after the drivers set it correctly.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23597>
 2023-06-23 12:49:04 +00:00
Timur Kristóf
05928f4200 aco: Use ac_hw_stage instead of aco-specific HWStage. 
The new ac_hw_stage is going to be used by drivers as well.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23597>
 2023-06-23 12:49:04 +00:00
Rhys Perry
cfa7eec06c aco: don't set exec_hi for wave32 scan reductions 
fossil-db (wave32):
Totals from 21 (0.02% of 133428) affected shaders:
Instrs: 10778 -> 10712 (-0.61%)
CodeSize: 56604 -> 56208 (-0.70%)
Latency: 168293 -> 168251 (-0.02%)
InvThroughput: 25256 -> 25253 (-0.01%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23745>
 2023-06-21 17:58:44 +00:00
Rhys Perry
f1f01aaef5 aco/gfx11: schedule for VMEM store clauses 
fossil-db (gfx1100):
Totals from 49486 (37.09% of 133428) affected shaders:
Instrs: 18376819 -> 18480712 (+0.57%); split: -0.00%, +0.57%
CodeSize: 91810836 -> 92227292 (+0.45%); split: -0.00%, +0.45%
VGPRs: 2031824 -> 2047784 (+0.79%); split: -0.02%, +0.81%
Latency: 104259318 -> 103804792 (-0.44%); split: -0.44%, +0.00%
InvThroughput: 16388760 -> 16399819 (+0.07%); split: -0.13%, +0.19%
VClause: 568844 -> 432401 (-23.99%)
Copies: 1197942 -> 1231202 (+2.78%); split: -0.08%, +2.86%

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/23505>
 2023-06-20 18:37:34 +00:00
Rhys Perry
f837fec213 aco/gfx11: use s_clause with stores 
fossil-db (gfx1100):
Totals from 3535 (2.65% of 133428) affected shaders:
Instrs: 1963996 -> 1968979 (+0.25%)
CodeSize: 10077784 -> 10097716 (+0.20%)
Latency: 13264216 -> 13264741 (+0.00%)
InvThroughput: 2995676 -> 3004083 (+0.28%); split: -0.00%, +0.28%

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/23505>
 2023-06-20 18:37:33 +00:00
Rhys Perry
0c0143a4c0 aco: don't try to form load+store clauses 
fossil-db (gfx1100):
Totals from 79 (0.06% of 133428) affected shaders:
MaxWaves: 1484 -> 1408 (-5.12%)
Instrs: 216290 -> 216255 (-0.02%); split: -0.04%, +0.03%
CodeSize: 1149288 -> 1149148 (-0.01%); split: -0.03%, +0.02%
VGPRs: 7384 -> 7840 (+6.18%)
Latency: 3303521 -> 3305077 (+0.05%); split: -0.05%, +0.10%
InvThroughput: 2716621 -> 2719973 (+0.12%); split: -0.01%, +0.13%
VClause: 5605 -> 6170 (+10.08%)
SClause: 3005 -> 2983 (-0.73%); split: -0.77%, +0.03%
Copies: 33428 -> 33490 (+0.19%); split: -0.07%, +0.26%

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/23505>
 2023-06-20 18:37:33 +00:00
Georg Lehmann
68f7c53814 aco/gfx10+: use v_cndmask with literal for reduction identity 
Totals from 10 (0.01% of 132657) affected shaders:
CodeSize: 171576 -> 171288 (-0.17%)
Instrs: 32127 -> 32055 (-0.22%)
Latency: 219145 -> 219027 (-0.05%)
InvThroughput: 130287 -> 130041 (-0.19%)

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23695>
 2023-06-20 14:48:18 +00:00
Georg Lehmann
71d30bcede aco: combine scalar mul+pk_add to pk_fma 
Foz-DB Navi21:
Totals from 12 (0.01% of 134913) affected shaders:
CodeSize: 37860 -> 37668 (-0.51%)
Instrs: 6757 -> 6733 (-0.36%)
Latency: 25632 -> 25589 (-0.17%)
InvThroughput: 2637 -> 2622 (-0.57%)

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21819>
 2023-06-20 14:29:24 +00:00
Georg Lehmann
6db61d0dc0 aco: use uses helpers for pk_fma opt 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21819>
 2023-06-20 14:29:24 +00:00
Caio Oliveira
59cc77f0fa compiler: Move from nir_scope to mesa_scope 
Just moving the enum and performing renames, no behavior change.

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23328>
 2023-06-19 23:29:26 +00:00
Eric Engestrom
6b21653ab4 aco: reformat according to its .clang-format 
Signed-off-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23253>
 2023-06-16 19:59:52 +00:00
Eric Engestrom
1725d9aa67 radv,aco: tweaks to get clang-format to print nicer code 
Signed-off-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23253>
 2023-06-16 19:59:52 +00:00
Georg Lehmann
99e44cc527 aco/opcodes: delete wrong comment copy pasted from NIR 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21882>
 2023-06-16 13:45:38 +00:00
Georg Lehmann
fe3993447d aco: remove v_cvt_pkrtz_f16_f32_e64 when it's actually VOP2 
More consistent with how we handle all the opcodes which were moved to VOP3.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21882>
 2023-06-16 13:45:38 +00:00
Georg Lehmann
49bdc3a1c2 aco/opcodes: move v_cndmask_b32 back to the VOP2 list 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21882>
 2023-06-16 13:45:38 +00:00
Tony Wasserka
89c86af39e aco/spill: Use arena allocator for spills 
Gives a marginal speedup.

Co-authored-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12000>
 2023-06-16 12:46:01 +00:00
Tony Wasserka
73835f4b09 aco/spill: Use arena allocator for next use distances 
Speedup of aco::spill(): ~50%

Co-authored-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12000>
 2023-06-16 12:46:01 +00:00
Georg Lehmann
bbda9f7390 aco: validate ir for prologs and after lower_to_hw_instr 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23507>
 2023-06-12 19:43:17 +00:00
Georg Lehmann
2028df8757 aco: don't validate p_constaddr_addlo/p_resumeaddr_addlo operands 
These can have two literals so validation would fail.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23507>
 2023-06-12 19:43:17 +00:00
Georg Lehmann
b9854a9097 aco: move cfg validation to its own function 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23507>
 2023-06-12 19:43:17 +00:00
Georg Lehmann
e5df6ee605 aco: make validation work without SSA temps 
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23507>
 2023-06-12 19:43:17 +00:00
Friedrich Vock
9de8134410 aco: Fix assert in insert_exec_mask 
This assert would trigger on unconditional demotes, because the demotes
don't remove the mask_type_global flag from the exec mask.

Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23594>
 2023-06-12 14:20:28 +00:00
Friedrich Vock
3ea01b86f0 aco: Fix live_var_analysis assert 
Fixes: 3d4f6a00b ('aco/spill: allow for disconnected CFG')
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23586>
 2023-06-12 13:52:03 +00:00