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aco: reserve 2 sgprs for each branch

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We'll need two sgprs for the possibility of a long jump.

fossil-db (Navi):
Totals from 10197 (7.50% of 135946) affected shaders:
SGPRs: 946268 -> 946468 (+0.02%)
VGPRs: 705884 -> 707956 (+0.29%); split: -0.00%, +0.30%
SpillSGPRs: 31485 -> 36212 (+15.01%); split: -0.04%, +15.05%
CodeSize: 88296484 -> 88384604 (+0.10%); split: -0.01%, +0.11%
MaxWaves: 81379 -> 81171 (-0.26%)
Instrs: 17219111 -> 17231682 (+0.07%); split: -0.03%, +0.10%
Cycles: 1594875900 -> 1596450136 (+0.10%); split: -0.05%, +0.15%
VMEM: 1687263 -> 1689080 (+0.11%); split: +0.14%, -0.03%
SMEM: 657726 -> 660262 (+0.39%); split: +0.61%, -0.22%
VClause: 294806 -> 294638 (-0.06%); split: -0.08%, +0.02%
SClause: 556702 -> 556210 (-0.09%); split: -0.12%, +0.03%
Copies: 1466323 -> 1469349 (+0.21%); split: -0.57%, +0.78%
Branches: 619793 -> 618556 (-0.20%); split: -0.28%, +0.08%
PreSGPRs: 806364 -> 811477 (+0.63%); split: -0.14%, +0.77%
PreVGPRs: 655845 -> 657174 (+0.20%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Cc: 20.2 <mesa-stable>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6212>
This commit is contained in:
Rhys Perry
2020-08-04 14:18:55 +01:00
committed by Marge Bot
parent e8ac14527a
commit 156fd58cda
5 changed files with 57 additions and 39 deletions
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4
src/amd/compiler/aco_builder_h.py
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@@ -537,7 +537,7 @@ formats = [("pseudo", [Format.PSEUDO], 'Pseudo_instruction', list(itertools.prod
("sop1", [Format.SOP1], 'SOP1_instruction', [(1, 1), (2, 1), (3, 2)]),
("sop2", [Format.SOP2], 'SOP2_instruction', itertools.product([1, 2], [2, 3])),
("sopk", [Format.SOPK], 'SOPK_instruction', itertools.product([0, 1, 2], [0, 1])),
("sopp", [Format.SOPP], 'SOPP_instruction', [(0, 0), (0, 1)]),
("sopp", [Format.SOPP], 'SOPP_instruction', itertools.product([0, 1], [0, 1])),
("sopc", [Format.SOPC], 'SOPC_instruction', [(1, 2)]),
("smem", [Format.SMEM], 'SMEM_instruction', [(0, 4), (0, 3), (1, 0), (1, 3), (1, 2), (0, 0)]),
("ds", [Format.DS], 'DS_instruction', [(1, 1), (1, 2), (0, 3), (0, 4)]),
@@ -545,7 +545,7 @@ formats = [("pseudo", [Format.PSEUDO], 'Pseudo_instruction', list(itertools.prod
("mtbuf", [Format.MTBUF], 'MTBUF_instruction', [(0, 4), (1, 3)]),
("mimg", [Format.MIMG], 'MIMG_instruction', [(0, 3), (1, 3)]),
("exp", [Format.EXP], 'Export_instruction', [(0, 4)]),
("branch", [Format.PSEUDO_BRANCH], 'Pseudo_branch_instruction', itertools.product([0], [0, 1])),
("branch", [Format.PSEUDO_BRANCH], 'Pseudo_branch_instruction', itertools.product([1], [0, 1])),
("barrier", [Format.PSEUDO_BARRIER], 'Pseudo_barrier_instruction', [(0, 0)]),
("reduction", [Format.PSEUDO_REDUCTION], 'Pseudo_reduction_instruction', [(3, 2)]),
("vop1", [Format.VOP1], 'VOP1_instruction', [(1, 1), (2, 2)]),