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[mypyc] Reduce impact of immortality on reference counting performance - #18459

Merged

JukkaL merged 16 commits into

mypyc-immortal-rc

Jan 21, 2025

Commits on Jan 13, 2025

WIP incref operations that don't check for immortality
JukkaL
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9cc9cb0
WIP use more efficient refcount ops
JukkaL
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b4d441e
Don't increase None refcount
JukkaL
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4e27e80
Don't inc ref bool and small integer values
JukkaL
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1a98389
Optimized decref for optional types
JukkaL
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5fcc9c9
Dict and set objects may be immortal
JukkaL
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37605f6
Update comment
JukkaL
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b864f89
Nothing can be immortal on pre-3.12 Python versions
JukkaL
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21db06d
Lint
JukkaL
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66d5a65
Fix pre-3.12 Python version and add tests
JukkaL
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ec4be73
More tests
JukkaL
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9704c84
Add test case
JukkaL
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3a96b7c
Optimize inc ref of optional types slightly
JukkaL
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fdc6e7b
Revert optional type special casing
JukkaL
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a1782de
Add more incref tests
JukkaL
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67f33dd
Tweak test case
JukkaL
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bbb1368