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GeezerVison is showing github.com — GH-139109: Support switch/case dispatch with the tracing interpreter. by markshannon · Pull Request #141703 · python/cpython

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@markshannon

@markshannon markshannon commented Nov 18, 2025 •
edited by bedevere-app Bot
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Restores JIT support for switch/case based interpreters.

  • Issue: Trace recording JIT #139109

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@markshannon
Support switch/case dispatch with the tracing interpreter.
8807c08
@markshannon
markshannon requested review from AA-Turner, ezio-melotti and hugovk as code owners November 18, 2025 10:25
@bedevere-app bedevere-app Bot added the awaiting core review label Nov 18, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Nov 18, 2025
Trace recording JIT #139109
Open
@markshannon markshannon added the skip news label Nov 18, 2025
@markshannon

markshannon commented Nov 18, 2025

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Skipping news as this is part of the tracing front-end and covered by the news and what's new for that.
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@markshannon
Fix tail calling interpreter
de9f2f8
Fidget-Spinner
Fidget-Spinner approved these changes Nov 18, 2025
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Thanks, that was much simpler than I thought.

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@bedevere-app bedevere-app Bot added awaiting merge and removed awaiting core review labels Nov 18, 2025
@markshannon
markshannon merged commit b420f6b into python:main Nov 18, 2025
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@bedevere-app bedevere-app Bot removed the awaiting merge label Nov 18, 2025
@markshannon
markshannon deleted the tracing-jit-switch-case-support branch November 18, 2025 13:32
@chris-eibl chris-eibl mentioned this pull request Nov 28, 2025
error : use of undeclared identifier 'oparg' when building the tier 2 interpreter with tail calling #141967
Closed
StanFromIreland pushed a commit to StanFromIreland/cpython that referenced this pull request Dec 6, 2025
@markshannon @StanFromIreland
pythonGH-139109: Support switch/case dispatch with the tracing interp…
2e92793 
…reter. (pythonGH-141703)
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@Fidget-Spinner Fidget-Spinner Fidget-Spinner approved these changes
@ezio-melotti ezio-melotti Awaiting requested review from ezio-melotti ezio-melotti is a code owner
@hugovk hugovk Awaiting requested review from hugovk hugovk is a code owner
@AA-Turner AA-Turner Awaiting requested review from AA-Turner AA-Turner is a code owner

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@markshannon @Fidget-Spinner
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