 Daniel Schürmann
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794c2b7e2f
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aco/lower_branches: allow other instructions after s_andn2 in break blocks
We are about to insert parallelcopies from phis there.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33527>
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2025-02-24 13:11:20 +00:00 |
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Daniel Schürmann
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08560b8ff8
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aco/lower_branches: stitch linear blocks if there is exactly one successor with one predecessor
Totals from 12906 (16.26% of 79395) affected shaders: (Navi31)
Instrs: 22051521 -> 22049488 (-0.01%); split: -0.01%, +0.00%
CodeSize: 116591240 -> 116583920 (-0.01%)
Latency: 196625178 -> 196538410 (-0.04%); split: -0.04%, +0.00%
InvThroughput: 33943045 -> 33930615 (-0.04%); split: -0.04%, +0.00%
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Daniel Schürmann
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c90ae5f773
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aco: delete aco_jump_threading.cpp
This is now handled by lower_branches().
Totals from 47236 (59.49% of 79395) affected shaders: (Navi31)
Instrs: 29490400 -> 29490507 (+0.00%)
CodeSize: 152316812 -> 152317248 (+0.00%); split: -0.00%, +0.00%
Latency: 229665459 -> 229665106 (-0.00%); split: -0.00%, +0.00%
InvThroughput: 36870605 -> 36870504 (-0.00%); split: -0.00%, +0.00%
Copies: 1966751 -> 2233467 (+13.56%)
SALU: 3122941 -> 3123048 (+0.00%)
Note, that only about 20 shaders are actually affected.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Daniel Schürmann
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c677809f25
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aco/lower_branches: allow for non-fallthrough loop exits in try_merge_break_with_continue()
Totals from 211 (0.27% of 79395) affected shaders: (Navi31)
Instrs: 276961 -> 276545 (-0.15%)
CodeSize: 1404356 -> 1402248 (-0.15%)
Latency: 1344722 -> 1344887 (+0.01%); split: -0.00%, +0.01%
InvThroughput: 165624 -> 165622 (-0.00%); split: -0.00%, +0.00%
Branches: 6149 -> 5987 (-2.63%)
SALU: 25722 -> 25468 (-0.99%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Daniel Schürmann
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12656ea5f5
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aco: move try_merge_break_with_continue() to lower_branches()
Totals from 3 (0.00% of 79395) affected shaders: (Navi31)
Instrs: 12888 -> 12882 (-0.05%)
Latency: 83253 -> 83246 (-0.01%)
InvThroughput: 9251 -> 9249 (-0.02%)
Branches: 483 -> 480 (-0.62%)
SALU: 1329 -> 1326 (-0.23%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Daniel Schürmann
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13ad3db43f
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aco/lower_branches: implement try_remove_simple_block() in lower_branches()
This is mostly the same as in jump_threading, but can handle
multiple predecessors.
Totals from 3523 (4.44% of 79395) affected shaders: (Navi31)
Instrs: 10244892 -> 10244753 (-0.00%); split: -0.00%, +0.00%
CodeSize: 54171500 -> 54168540 (-0.01%); split: -0.01%, +0.00%
Latency: 75070425 -> 75059570 (-0.01%); split: -0.02%, +0.00%
InvThroughput: 11606911 -> 11605767 (-0.01%); split: -0.01%, +0.00%
Branches: 331778 -> 331675 (-0.03%); split: -0.05%, +0.02%
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Daniel Schürmann
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2b5a893e29
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aco/lower_branches: do eliminate_useless_exec_writes_in_block() during branch lowering.
Totals from 728 (0.92% of 79395) affected shaders: (Navi31)
Instrs: 452926 -> 452161 (-0.17%)
CodeSize: 2255536 -> 2252504 (-0.13%)
Latency: 1683404 -> 1683470 (+0.00%); split: -0.01%, +0.01%
InvThroughput: 210887 -> 210888 (+0.00%); split: -0.00%, +0.00%
SALU: 77865 -> 77106 (-0.97%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32477>
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2025-01-23 00:11:06 +00:00 |
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Georg Lehmann
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6b35d6f75b
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aco: allow p_exit_early_if_not with exec condition
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <None>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32731>
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2024-12-30 13:05:23 +00:00 |
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Daniel Schürmann
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26a3038b65
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aco/lower_branches: remove edges between blocks if there is no direct branch
This way, linear predecessors and successors better reflect the
actual control flow which improves wait state insertion and hazard
mitigation.
Totals from 10252 (12.91% of 79395) affected shaders: (Navi31)
Instrs: 18824540 -> 18803823 (-0.11%); split: -0.11%, +0.00%
CodeSize: 99025464 -> 98942028 (-0.08%); split: -0.08%, +0.00%
Latency: 169291854 -> 165781877 (-2.07%); split: -2.07%, +0.00%
InvThroughput: 29701086 -> 29228602 (-1.59%); split: -1.59%, +0.00%
SClause: 510587 -> 510586 (-0.00%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32389>
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2024-12-12 08:46:22 +00:00 |
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Daniel Schürmann
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22ffe72022
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aco: move branch lowering optimization into separate file 'aco_lower_branches.cpp'
No fossil changes.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32389>
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2024-12-12 08:46:22 +00:00 |
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