10000 GH-90997: Shrink the `LOAD_GLOBAL` caches by brandtbucher · Pull Request #102569 · python/cpython · GitHub
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GH-90997: Shrink the LOAD_GLOBAL caches #102569

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Merged
merged 9 commits into from
Mar 11, 2023
Merged

GH-90997: Shrink the LOAD_GLOBAL caches #102569

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9931a35
Shrink the LOAD_GLOBAL caches
brandtbucher Feb 16, 2023
c8a21bd
Catch up with main
brandtbucher Feb 17, 2023
4977f1c
Catch up with main
brandtbucher Feb 17, 2023
cf0df30
fixup
brandtbucher Feb 21, 2023
7ff4fbf
Catch up with main
brandtbucher Mar 7, 2023
87449dc
Bump magic number
brandtbucher Mar 7, 2023
0b414e2
fixup
brandtbucher Mar 9, 2023
156c987
blurb add
brandtbucher Mar 9, 2023
2ef4604
Fix doctest
brandtbucher Mar 9, 2023
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Bump magic number
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@brandtbucher
brandtbucher committed Mar 7, 2023
commit 87449dc86840ccd08eda2f1064c4e620701a671f
3 changes: 2 additions & 1 deletion Lib/importlib/_bootstrap_external.py
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Expand Up @@ -434,6 +434,7 @@ def _write_atomic(path, data, mode=0o666):
# Python 3.12a5 3518 (Add RETURN_CONST instruction)
# Python 3.12a5 3519 (Modify SEND instruction)
# Python 3.12a5 3520 (Remove PREP_RERAISE_STAR, add CALL_INTRINSIC_2)
# Python 3.12a6 3521 (Shrink the LOAD_GLOBAL caches)

# Python 3.13 will start with 3550

Expand All @@ -446,7 +447,7 @@ def _write_atomic(path, data, mode=0o666):
# Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
# in PC/launcher.c must also be updated.

MAGIC_NUMBER = (3520).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3521).to_bytes(2, 'little') + b'\r\n'

_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c

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