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Use low bit of LOAD_GLOBAL's oparg to indicate whether it should push an additional NULL. (GH-31933)

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Mark Shannon 2022-03-17 16:14:57 +00:00 • committed by GitHub
parent ef1327e3b6
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7 changed files with 212 additions and 196 deletions
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Lib/importlib/_bootstrap_external.py
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@ -395,6 +395,7 @@ _code_type = type(_write_atomic.__code__)
# Python 3.11a5 3485 (Add an oparg to GET_AWAITABLE)
# Python 3.11a6 3486 (Use inline caching for PRECALL and CALL)
# Python 3.11a6 3487 (Remove the adaptive "oparg counter" mechanism)
# Python 3.11a6 3488 (LOAD_GLOBAL can push additional NULL)
# Python 3.12 will start with magic number 3500
@ -409,7 +410,7 @@ _code_type = type(_write_atomic.__code__)
# Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
# in PC/launcher.c must also be updated.
MAGIC_NUMBER = (3487).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3488).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'