adcd220556 - platform/external/python/cpython3

commit	adcd2205565f91c6719f4141ab4e1da6d7086126	[log] [tgz]
author	Mark Shannon <mark@hotpy.org>	Fri May 07 15:19:19 2021 +0100
committer	GitHub <noreply@github.com>	Fri May 07 15:19:19 2021 +0100
tree	0953b285944eccde57b05b8f3c7e30fb501a3d64
parent	b32c8e97951db46484ba3b646b988bcdc4062199 [diff]

bpo-40222: "Zero cost" exception handling (GH-25729)

"Zero cost" exception handling.

* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.

Doc/library/dis.rst[diff]
Doc/whatsnew/3.11.rst[diff]
Include/cpython/code.h[diff]
Include/cpython/frameobject.h[diff]
Include/opcode.h[diff]
Lib/ctypes/test/test_values.py[diff]
Lib/dis.py[diff]
Lib/importlib/_bootstrap_external.py[diff]
Lib/opcode.py[diff]
Lib/test/test_code.py[diff]
Lib/test/test_dis.py[diff]
Lib/test/test_exceptions.py[diff]
Lib/test/test_sys.py[diff]
Lib/test/test_sys_settrace.py[diff]
Misc/NEWS.d/next/Core and Builtins/2021-04-30-15-48-36.bpo-40222.j3VxeX.rst[Added - diff]
Modules/_opcode.c[diff]
Objects/clinic/codeobject.c.h[diff]
Objects/codeobject.c[diff]
Objects/exception_handling_notes.txt[Added - diff]
Objects/frameobject.c[diff]
PC/launcher.c[diff]
Python/ceval.c[diff]
Python/compile.c[diff]
Python/frozen_hello.h[diff]
Python/importlib.h[diff]
Python/importlib_external.h[diff]
Python/importlib_zipimport.h[diff]
Python/marshal.c[diff]
Python/opcode_targets.h[diff]
Tools/scripts/generate_opcode_h.py[diff]

30 files changed

tree: 0953b285944eccde57b05b8f3c7e30fb501a3d64