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gh-127413: allow to show specialized bytecode via `dis` CLI by picnixz · Pull Request #127414 · python/cpython · GitHub

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gh-127413: allow to show specialized bytecode via dis CLI #127414

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Merged
iritkatriel merged 4 commits into from
Dec 5, 2024
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gh-127413: allow to show specialized bytecode via dis CLI #127414

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f7991ff
allow `dis` CLI to show specialized bytecode
picnixz Nov 19, 2024
652986b
Merge branch 'main' into feat/dis/adaptive-cli-127413
picnixz Nov 29, 2024
37825e7
blurb
picnixz Nov 29, 2024
92a84db
Merge branch 'main' into feat/dis/adaptive-cli-127413
picnixz Dec 5, 2024
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8 changes: 7 additions & 1 deletion Doc/library/dis.rst
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Expand Up @@ -60,6 +60,8 @@ interpreter.
The :option:`-P <dis --show-positions>` command-line option
and the ``show_positions`` argument were added.

The :option:`-S <dis --specialized>` command-line option is added.

Example: Given the function :func:`!myfunc`::

def myfunc(alist):
Expand Down Expand Up @@ -89,7 +91,7 @@ The :mod:`dis` module can be invoked as a script from the command line:

.. code-block:: sh

python -m dis [-h] [-C] [-O] [-P] [infile]
python -m dis [-h] [-C] [-O] [-P] [-S] [infile]

The following options are accepted:

Expand All @@ -111,6 +113,10 @@ The following options are accepted:

Show positions of instructions in the source code.

.. cmdoption:: -S, --specialized

Show specialized bytecode.

If :file:`infile` is specified, its disassembled code will be written to stdout.
Otherwise, disassembly is performed on compiled source code received from stdin.

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6 changes: 6 additions & 0 deletions Doc/whatsnew/3.14.rst
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Expand Up @@ -348,12 +348,18 @@ dis
This feature is also exposed via :option:`dis --show-positions`.
(Contributed by Bénédikt Tran in :gh:`123165`.)

* Add the :option:`dis --specialized` command-line option to
show specialized bytecode.
(Contributed by Bénédikt Tran in :gh:`127413`.)


errno
-----

* Add :data:`errno.EHWPOISON` error code.
(Contributed by James Roy in :gh:`126585`.)


picnixz Dec 5, 2024

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

This line was added after I fixed the conflict. Since we put two blank lines between sections, I think it's ok to keep but I can revert it.

picnixz Dec 5, 2024

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

(At some point, we'll need a copy-edit because the above sections are not splitted with double lines while the sections below are... But since most of the sections have two blank lines, it's easier to add them to places that lack them).
fractions
---------

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5 changes: 4 additions & 1 deletion Lib/dis.py
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Expand Up @@ -1125,6 +1125,8 @@ def main():
help='show instruction offsets')
parser.add_argument('-P', '--show-positions', action='store_true',
help='show instruction positions')
parser.add_argument('-S', '--specialized', action='store_true',
help='show specialized bytecode')
parser.add_argument('infile', nargs='?', default='-')
args = parser.parse_args()
if args.infile == '-':
Expand All @@ -1135,7 +1137,8 @@ def main():
with open(args.infile, 'rb') as infile:
source = infile.read()
code = compile(source, name, "exec")
dis(code, show_caches=args.show_caches, show_offsets=args.show_offsets, show_positions=args.show_positions)
dis(code, show_caches=args.show_caches, adaptive=args.specialized,
show_offsets=args.show_offsets, show_positions=args.show_positions)

if __name__ == "__main__":
main()
2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2024-11-29-14-45-26.gh-issue-127413.z11AUc.rst
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@@ -0,0 +1,2 @@
Add the :option:`dis --specialized` command-line option to show specialized
bytecode. Patch by Bénédikt Tran.
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