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Title: Align bytecode CFG cleanup with CPython by youknowone · Pull Request #7781 · RustPython/RustPython · GitHub

Open Graph Title: Align bytecode CFG cleanup with CPython by youknowone · Pull Request #7781 · RustPython/RustPython

X Title: Align bytecode CFG cleanup with CPython by youknowone · Pull Request #7781 · RustPython/RustPython

Description: A Python Interpreter written in Rust. Contribute to RustPython/RustPython development by creating an account on GitHub.

Open Graph Description: Summary by CodeRabbit New Features Added a preprocessing pass that rewrites certain percent-format string expressions into f-string-style interpolations. Bug Fixes Improved control-flow, exc...

X Description: Summary by CodeRabbit New Features Added a preprocessing pass that rewrites certain percent-format string expressions into f-string-style interpolations. Bug Fixes Improved control-flow, exc...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7781

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Align nested with cleanup bytecodehttps://github.com/RustPython/RustPython/pull/7781/commits/15a88dfb09a058d8a6d123e538164ce4d92cae4f
15a88dfhttps://github.com/RustPython/RustPython/pull/7781/commits/15a88dfb09a058d8a6d123e538164ce4d92cae4f
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Align conditional raise loop backedge orderinghttps://github.com/RustPython/RustPython/pull/7781/commits/4bd27bea96b20c590bd291e07b79a8bfd0c08b8a
4bd27behttps://github.com/RustPython/RustPython/pull/7781/commits/4bd27bea96b20c590bd291e07b79a8bfd0c08b8a
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Align percent format optimization with CPython preprocesshttps://github.com/RustPython/RustPython/pull/7781/commits/9b257b16bd89d21134b56755da16fdc5f74b3f83
9b257b1https://github.com/RustPython/RustPython/pull/7781/commits/9b257b16bd89d21134b56755da16fdc5f74b3f83
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Preserve shared finally reraises in CFG cleanuphttps://github.com/RustPython/RustPython/pull/7781/commits/8fbe367eb5ed99431e7312483b6bbbde831a1ce7
8fbe367https://github.com/RustPython/RustPython/pull/7781/commits/8fbe367eb5ed99431e7312483b6bbbde831a1ce7
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Align CFG cleanup with CPython finally layouthttps://github.com/RustPython/RustPython/pull/7781/commits/3ccda96213cf296744def175227865f96ece0ea4
3ccda96https://github.com/RustPython/RustPython/pull/7781/commits/3ccda96213cf296744def175227865f96ece0ea4
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Align loop CFG anchors with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/2aa954fb90b52e05c74f0839386f498fabfd19c4
2aa954fhttps://github.com/RustPython/RustPython/pull/7781/commits/2aa954fb90b52e05c74f0839386f498fabfd19c4
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Preserve loop false-path CFG bodieshttps://github.com/RustPython/RustPython/pull/7781/commits/742ff9bff2545a66365db99da5a8a0bb1da1c026
742ff9bhttps://github.com/RustPython/RustPython/pull/7781/commits/742ff9bff2545a66365db99da5a8a0bb1da1c026
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Align protected store-subscript CFG bytecodehttps://github.com/RustPython/RustPython/pull/7781/commits/6cfa6f2570509e0b2ca0cd596ba48f58d9aa94d6
6cfa6f2https://github.com/RustPython/RustPython/pull/7781/commits/6cfa6f2570509e0b2ca0cd596ba48f58d9aa94d6
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Align borrow deopts with CPython CFGhttps://github.com/RustPython/RustPython/pull/7781/commits/cc59c4678dad8948b209a9e023d29aebb93a1934
cc59c46https://github.com/RustPython/RustPython/pull/7781/commits/cc59c4678dad8948b209a9e023d29aebb93a1934
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Align delete-loop CFG with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/891e972860a340c1e3217077184f12d5cae2a7ad
891e972https://github.com/RustPython/RustPython/pull/7781/commits/891e972860a340c1e3217077184f12d5cae2a7ad
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Align CFG inlining with CPython jumpshttps://github.com/RustPython/RustPython/pull/7781/commits/19b74273372d7353aeb9ab6eee560c971d98abc9
19b7427https://github.com/RustPython/RustPython/pull/7781/commits/19b74273372d7353aeb9ab6eee560c971d98abc9
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Align protected CFG jump threadinghttps://github.com/RustPython/RustPython/pull/7781/commits/d734c060117238a1d1692e1f150cf5db84a455b9
d734c06https://github.com/RustPython/RustPython/pull/7781/commits/d734c060117238a1d1692e1f150cf5db84a455b9
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Narrow handler resume borrow deopthttps://github.com/RustPython/RustPython/pull/7781/commits/0e2b2264c1ce2dd30387a4131ce0c9f1cb441dff
0e2b226https://github.com/RustPython/RustPython/pull/7781/commits/0e2b2264c1ce2dd30387a4131ce0c9f1cb441dff
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May 12, 2026 01:23https://github.com/RustPython/RustPython/pull/7781#commits-pushed-330c44c
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Align protected CFG cleanup layouthttps://github.com/RustPython/RustPython/pull/7781/commits/330c44c0aed104091007aea99a369967eaac2688
330c44chttps://github.com/RustPython/RustPython/pull/7781/commits/330c44c0aed104091007aea99a369967eaac2688
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Align CFG cleanup and peephole parityhttps://github.com/RustPython/RustPython/pull/7781/commits/9c737eb9d325d39f6f87e043238aead9b1a128f4
9c737ebhttps://github.com/RustPython/RustPython/pull/7781/commits/9c737eb9d325d39f6f87e043238aead9b1a128f4
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Align nested loop conditional CFG layouthttps://github.com/RustPython/RustPython/pull/7781/commits/d35c13d6cccf347cc57c0360dda5924f95cc7292
d35c13dhttps://github.com/RustPython/RustPython/pull/7781/commits/d35c13d6cccf347cc57c0360dda5924f95cc7292
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Align named expression comprehension scopehttps://github.com/RustPython/RustPython/pull/7781/commits/bba340b6ab57e4534c686c2e143faa023c8f94f9
bba340bhttps://github.com/RustPython/RustPython/pull/7781/commits/bba340b6ab57e4534c686c2e143faa023c8f94f9
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Align CFG cleanup with CPython line markershttps://github.com/RustPython/RustPython/pull/7781/commits/ea757cf5e47ca240f602c8db20f437d4e27dead3
ea757cfhttps://github.com/RustPython/RustPython/pull/7781/commits/ea757cf5e47ca240f602c8db20f437d4e27dead3
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Align CFG line marker cleanup with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/555e8fca93bab4d9fbdcaa162395896bef4a799b
555e8fchttps://github.com/RustPython/RustPython/pull/7781/commits/555e8fca93bab4d9fbdcaa162395896bef4a799b
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Align loop CFG fallthrough with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/8abe32a9a890a87cbb5b3e62e1891e9ccaee9640
8abe32ahttps://github.com/RustPython/RustPython/pull/7781/commits/8abe32a9a890a87cbb5b3e62e1891e9ccaee9640
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Align conditional CFG fallthrough cases with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/05d96e4dd98c95f956dd488c394ddf28e3d9522d
05d96e4https://github.com/RustPython/RustPython/pull/7781/commits/05d96e4dd98c95f956dd488c394ddf28e3d9522d
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Align protected CFG layout with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/a891818d028976173b5f8f2e07ce55b286fd9446
a891818https://github.com/RustPython/RustPython/pull/7781/commits/a891818d028976173b5f8f2e07ce55b286fd9446
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Align CFG cleanup and type-param calls with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/24dde16255ff63c28002fb1e5e48f6da3d9302d5
24dde16https://github.com/RustPython/RustPython/pull/7781/commits/24dde16255ff63c28002fb1e5e48f6da3d9302d5
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Align annotation and super call bytecode parityhttps://github.com/RustPython/RustPython/pull/7781/commits/93e8bc40fee1a6b18bb8d031be9e0cb5c86f7056
93e8bc4https://github.com/RustPython/RustPython/pull/7781/commits/93e8bc40fee1a6b18bb8d031be9e0cb5c86f7056
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Align finally reraise tail inlininghttps://github.com/RustPython/RustPython/pull/7781/commits/1b414fec830a0010eada1ebd17fd976b5e6be892
1b414fehttps://github.com/RustPython/RustPython/pull/7781/commits/1b414fec830a0010eada1ebd17fd976b5e6be892
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Align protected loop CFG cleanuphttps://github.com/RustPython/RustPython/pull/7781/commits/72689836a30eb08c8ae14833eca03648adee328d
7268983https://github.com/RustPython/RustPython/pull/7781/commits/72689836a30eb08c8ae14833eca03648adee328d
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Align loop CFG bytecode layout with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/a24a791477c42d7512855b08d782038eb9145f8e
a24a791https://github.com/RustPython/RustPython/pull/7781/commits/a24a791477c42d7512855b08d782038eb9145f8e
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Align nested loop jump-back layouthttps://github.com/RustPython/RustPython/pull/7781/commits/0941b7a189a4dc5259e5eaf2c0fc4f221db4f795
0941b7ahttps://github.com/RustPython/RustPython/pull/7781/commits/0941b7a189a4dc5259e5eaf2c0fc4f221db4f795
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Align conditional jump threading with CPythonhttps://github.com/RustPython/RustPython/pull/7781/commits/448e1f28a8d17006107ccd353f40e708788c9aae
448e1f2https://github.com/RustPython/RustPython/pull/7781/commits/448e1f28a8d17006107ccd353f40e708788c9aae
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fixhttps://github.com/RustPython/RustPython/pull/7781/commits/a448fb6a54b91002f7fd141b1fe4a4e97774cf62
a448fb6https://github.com/RustPython/RustPython/pull/7781/commits/a448fb6a54b91002f7fd141b1fe4a4e97774cf62
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Skip test_stack_overflow under -u cpuhttps://github.com/RustPython/RustPython/pull/7781/commits/b3b8329c4df2e04d513b9e5e33dcfb5827387668
b3b8329https://github.com/RustPython/RustPython/pull/7781/commits/b3b8329c4df2e04d513b9e5e33dcfb5827387668
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5bb40c9https://github.com/RustPython/RustPython/commit/5bb40c9e5e9eddcea777fe7b93efc2089197bdb9
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May 11, 2026 16:30https://github.com/RustPython/RustPython/pull/7781#event-25391479108
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Fix CI lint and clippy errorshttps://github.com/RustPython/RustPython/pull/7781/commits/7790e548362b8cd5d19dcfb7245b0c5a21796f7d
7790e54https://github.com/RustPython/RustPython/pull/7781/commits/7790e548362b8cd5d19dcfb7245b0c5a21796f7d
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May 12, 2026 02:48https://github.com/RustPython/RustPython/pull/7781#event-25410955335
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Speed up CFG cleanup for large compile inputshttps://github.com/RustPython/RustPython/pull/7781/commits/19bf583000be7e436e098463beeb0b5a43c51b89
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Align cleanup bytecode layout with CPython #7935 https://github.com/RustPython/RustPython/pull/7935
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