Commit Graph

64 Commits

Author SHA1 Message Date
Bas Nieuwenhuizen 513442dc32 aco: Add s_delay_alu support for GFX11+
Roughly copied from LLVM. This facilitates better ALU usage by
switching between waves when there is an ALU stall, which isn't
automatic anymore on GFX11.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19743>
2022-12-07 22:05:25 +00:00
Rhys Perry 7fa50ced14 aco: insert waitcnt before/after ds_ordered_count
The LLVM backend does this when lowering ordered_xfb_counter_add_amd. I
guess there is some missing dependency checking or something.

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/19345>
2022-10-28 21:50:05 +00:00
Samuel Pitoiset 6630b6e2aa aco: add support for s_sendmsg_rtn_b{32,64}
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19267>
2022-10-25 20:23:05 +02:00
Rhys Perry aadb7aef01 aco: add VINTERP instruction format
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/17333>
2022-09-26 14:49:56 +00:00
Rhys Perry 55cd74d468 aco: add LDSDIR instruction format
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/17333>
2022-09-26 14:49:56 +00:00
Rhys Perry 37dda55f46 aco: remove unnecessary exp_cnt increments
update_counters() already does this.

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/17257>
2022-07-20 14:04:15 +00:00
Samuel Pitoiset 8bdcc20815 aco: add new pseudo instruction p_jump_to_epilog
The first operand of this new pseudo-instruction is a 64-bit SGPR for
the continue PC, followed by a variable list of fixed VGPRS for the
color exports which are the PS epilog inputs.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17485>
2022-07-18 18:40:02 +00:00
Rhys Perry 29953d6048 aco: include scratch/global in VMEM WAW optimization
fossil-db (navi21):
Totals from 2 (0.00% of 162293) affected shaders:
Instrs: 4788 -> 4785 (-0.06%)
CodeSize: 25884 -> 25872 (-0.05%)
Latency: 255008 -> 252950 (-0.81%)
InvThroughput: 170005 -> 168633 (-0.81%)
VClause: 206 -> 205 (-0.49%)

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/17079>
2022-07-08 14:49:03 +00:00
Rhys Perry c66206cbed aco: avoid WAW hazard with BVH MIMG and other VMEM
According to LLVM, image_bvh64_intersect_ray does not write results in
order with other VMEM instructions.

fossil-db (navi21):
Totals from 7 (0.00% of 162293) affected shaders:
Instrs: 39978 -> 39985 (+0.02%)
CodeSize: 219356 -> 219384 (+0.01%)

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/17079>
2022-07-08 14:49:03 +00:00
Rhys Perry 931a456db1 aco: improve support for scratch_* instructions
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/17079>
2022-07-08 14:49:03 +00:00
Rhys Perry 33641b2a26 aco: cleanup force-waitcnt output
If we don't reset ctx.vm_cnt/gpr_map/etc, this will spam a lot of
s_waitcnt instructions.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17207>
2022-06-24 12:44:55 +00:00
Marek Olšák 39800f0fa3 amd: change chip_class naming to "enum amd_gfx_level gfx_level"
This aligns the naming with PAL.

Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Pierre-Eric Pellou-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16469>
2022-05-13 14:56:22 -04:00
Dave Airlie a2701bfdb8 aco: move info pointer to a copy.
This is just setup to move this to a different struct later.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16342>
2022-05-11 19:07:11 +00:00
Rhys Perry d45958f82e aco: implement VS input loads with prologs
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11717>
2021-10-13 05:13:10 +00:00
Tony Wasserka 0812d440c7 aco: Use std::vector for the underlying container of std::stack
By default, std::stack uses std::deque to allocate its elements, which has
poor cache efficiency. std::vector makes appending elements more expensive
(due to potential reallocations), but in the changed contexts the element
count should always be low anyway.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11925>
2021-10-01 09:39:13 +00:00
Daniel Schürmann 20eaa074ec aco/insert_waitcnt: Remove many unnecessary wait_imm.combine()
Reduces overall compile times by ~0.2%.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11879>
2021-07-14 18:10:50 +02:00
Daniel Schürmann 1e2639026f aco: Format.
Manually adjusted some comments for more intuitive line breaks.

Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11258>
2021-07-12 21:27:31 +00:00
Daniel Schürmann 0eea0e55ad aco: add 'common/' and 'llvm/' prefix to #includes
Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11271>
2021-07-12 12:09:31 +00:00
Daniel Schürmann 59fdaa1985 aco: reorder and cleanup #includes
Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11271>
2021-07-12 12:09:31 +00:00
Michel Dänzer d200f45875 Use explicit break instead of fall-through to break-only case
clang generates a warning if there's no explicit break or fall-through
annotation. The latter would be kind of silly in this case, and not
robust against any future changes turning the fall-through invalid.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10220>
2021-04-15 16:01:22 +00:00
Rhys Perry 38b2e13766 aco: remove vmem/smem score statistics
Replaced by the Latency statistic.

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/8994>
2021-03-11 16:31:19 +00:00
Rhys Perry ab957bb899 aco: move wait_imm to aco_ir.h
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/8994>
2021-03-11 15:35:34 +00:00
Rhys Perry f520f4c299 aco: add Program::wgp_mode
Instead of assuming WGP mode on GFX10+ in different places, add a member
to Program that can be used instead.

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/8761>
2021-02-15 13:35:14 +00:00
Rhys Perry e115b01948 aco: return references in instruction cast methods
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/8595>
2021-01-22 14:12:33 +00:00
Rhys Perry 1d245cd18b aco: use format-check methods
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/8595>
2021-01-22 14:12:32 +00:00
Rhys Perry 70dbcfa1c9 aco: use instruction cast methods
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/8595>
2021-01-22 14:12:32 +00:00
Rhys Perry faf3e9a27f aco: move VADDR to the end of the operand list
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/8523>
2021-01-20 16:46:54 +00:00
Timur Kristóf 4ee6d68d1f aco: Wait for stores when NGG or legacy VS can finish early.
When there are no param exports in an NGG (or legacy VS) shader,
the NO_PC_EXPORT=1 is set, which means PS waves can launch before
the current stage finishes.

If the current stage has any stores, we need to make sure to wait for
those before we allow PS waves to start, so that PS can read what
these instructions stored.

Fossil DB results on Navi 10:
Totals from 45 (0.03% of 136420) affected shaders:
CodeSize: 87224 -> 87404 (+0.21%)
Instrs: 16750 -> 16795 (+0.27%)
Cycles: 69580 -> 69760 (+0.26%)
VMEM: 8022 -> 8167 (+1.81%)

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/7868>
2021-01-12 16:43:27 +00:00
Samuel Pitoiset c24d6916e6 aco: fix inserting expcnt for MIMG on GFX6
MIMG VDATA has moved to its own operand.

Fixes: 962c917cea ("aco: move MIMG VDATA to its own operand")
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/8435>
2021-01-12 11:32:12 +00:00
James Park e352ebf88e aco: Fix warnings about unsafe integer/bool mix
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7785>
2020-12-01 11:08:21 +00:00
Tony Wasserka 2bb8874320 aco: Fix -Wshadow warnings
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7430>
2020-11-20 09:29:19 +00:00
James Park 6d058ac6c9 aco: Fix accidental copies, attempt two
Use auto to avoid mistyping the constness of the pair key, which
triggers implicit conversions rather than compilation errors.

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7346>
2020-10-30 09:55:53 +00:00
James Park 23fb54bf7f aco: Clean up some C++ usages
Iterate over maps by reference to avoid copies.

Replace find/insert with insert to avoid double search.

Use range-based for loop, avoiding copies by reference. Delete comment.

Erase by iterator instead of key to avoid repeat search.

Iterators unneeded to modify unwaited_instrs. Use range-based for loop.

Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7285>
2020-10-27 14:57:16 +00:00
Samuel Pitoiset 97afb2a0a9 aco: remove unused radv_shader.h includes
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/7061>
2020-10-14 15:09:34 +00:00
Samuel Pitoiset f153151730 aco: add ACO_DEBUG=force-waitcnt to emit wait-states
Sounds useful for debugging missing wait-states and for improving
detection of the faulty instruction in case of memory violations.

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/6386>
2020-08-21 13:22:58 +02:00
Rhys Perry 5718f7c8a7 aco: fix waitcnt insertion on GFX10.3
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/5546>
2020-08-04 20:39:32 +01:00
Rhys Perry 3d9eb17d5d aco: improve workgroup-scope and lower vmem/smem barriers
No fossil-db changes on Navi.

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/4905>
2020-07-28 16:56:34 +00:00
Rhys Perry d1f992f3c2 aco: rework barriers and replace can_reorder
fossil-db (Navi):
Totals from 273 (0.21% of 132058) affected shaders:
CodeSize: 937472 -> 936556 (-0.10%)
Instrs: 158874 -> 158648 (-0.14%)
Cycles: 13563516 -> 13562612 (-0.01%)
VMEM: 85246 -> 85244 (-0.00%)
SMEM: 21407 -> 21310 (-0.45%); split: +0.05%, -0.50%
VClause: 9321 -> 9317 (-0.04%)

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/4905>
2020-07-28 16:56:34 +00:00
Rhys Perry c11c4d8d4c aco: fix copy of uninitialized boolean
This should be harmless but UBSan seems to complain.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6013>
2020-07-21 19:38:43 +00:00
Rhys Perry 95d5c1b8a1 aco: check instruction format before waiting for a previous SMEM store
Totals from 7 (0.01% of 127638) affected shaders:
CodeSize: 40336 -> 40320 (-0.04%)
Instrs: 7807 -> 7803 (-0.05%)
Cycles: 118588 -> 118344 (-0.21%); split: -0.23%, +0.02%
SMEM: 331 -> 339 (+2.42%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 1749953ea3 ('aco/gfx10: Wait for pending SMEM stores before loads')
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
Rhys Perry 40ed7fcc0b aco: fix typo in insert_waitcnt's kill()
No shader-db changes

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3004
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5126>
2020-05-21 13:01:41 +00:00
Rhys Perry c1c0cf7a66 aco: fix consecutively written vgprs from vmem instructions
If one VMEM instruction uses a sampler and the other doesn't, we can't do
this optimization.

Totals from 47 (0.04% of 127638) affected shaders:
CodeSize: 271744 -> 271656 (-0.03%); split: -0.04%, +0.01%
Instrs: 52783 -> 52761 (-0.04%); split: -0.05%, +0.01%
Cycles: 5547040 -> 5546952 (-0.00%); split: -0.00%, +0.00%
VMEM: 10022 -> 9887 (-1.35%)

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/4949>
2020-05-13 12:26:42 +00:00
Rhys Perry 0c7bed72f7 aco: simplify consecutive ordered vmem/lds writes optimization
This was unnecessary and messed with statistics

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/4949>
2020-05-13 12:26:42 +00:00
Timur Kristóf cc8a85d05a aco: Fix crash in insert_wait_states.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4465>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4465>
2020-04-07 09:51:14 +00:00
Rhys Perry 34424b81df aco: make PhysReg in units of bytes
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4002>
2020-04-03 23:13:15 +01:00
Rhys Perry 507956ed04 aco: add vmem/smem score statistic
This isn't perfect (for example, changes might not be too meaningful when
comparing shaders with different control flow) but it should be useful for
evaluating scheduler changes.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2965>
2020-04-03 12:12:08 +00:00
Timur Kristóf 0f35b3795d aco: Fix workgroup size calculation.
Clear the workgroup size for all supported shader stages.
Also, unify the workgroup size calculation accross various places.

As a result, insert_waitcnt can use the proper workgroup size
which means that some waits can be dropped from tessellation
shaders. Also, in cases where the previous calculation was wrong,
we now insert s_barrier instructions.

Totals from affected shaders (GFX10):
Code Size: 340116 -> 338484 (-0.48 %) bytes

Fixes: a8d15ab6da
Signed-off-by: Timur Kristóf <timur.kristof@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/4165>
2020-03-30 13:09:08 +00:00
Rhys Perry 85d05b3fd7 aco: fix uninitialized data error in waitcnt pass
Shouldn't create any incorrect waitcnts but may create suboptimial
waitcnts in rare cases.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4133>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4133>
2020-03-12 11:46:56 +00:00
Rhys Perry 9fea90ad51 aco: keep track of which events are used in a barrier
And properly handle unordered events so that they always wait for 0.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 93c8ebfa78 ('aco: Initial commit of independent AMD compiler')
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3774>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3774>
2020-03-03 15:38:13 +00:00
Samuel Pitoiset 34fd894e42 aco: fix waiting for scalar stores before "writing back" data on GFX8-GFX9
Seems required also on GFX8-GFX9 to achieve correct behaviour. This
is an undocumented behaviour but it makes real sense to me.

pipeline-db on GFX9:
Totals from affected shaders:
SGPRS: 1018 -> 1018 (0.00 %)
VGPRS: 516 -> 516 (0.00 %)
Code Size: 40516 -> 40636 (0.30 %) bytes
Max Waves: 280 -> 280 (0.00 %)

This fixes some sort of sun flickering with Assassins Creed Origins.

Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2488
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3750>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3750>
2020-02-10 12:07:25 +00:00