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bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595)

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* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
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Mark Shannon 2021-11-23 09:53:24 +00:00 • committed by GitHub
parent d82f2caf94
commit 135cabd328
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25 changed files with 268 additions and 156 deletions
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3
Lib/importlib/_bootstrap_external.py
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@ -370,6 +370,7 @@ _code_type = type(_write_atomic.__code__)
# active exception)
# Python 3.11a3 3464 (bpo-45636: Merge numeric BINARY_*/INPLACE_* into
# BINARY_OP)
# Python 3.11a3 3465 (Add COPY_FREE_VARS opcode)
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
@ -379,7 +380,7 @@ _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 = (3464).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3465).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'