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gh-67565: remove redundant C-contiguity checks#105521

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serhiy-storchaka merged 33 commits intopython:mainfrom
furkanonder:issue-67565
Oct 23, 2023
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gh-67565: remove redundant C-contiguity checks#105521
serhiy-storchaka merged 33 commits intopython:mainfrom
furkanonder:issue-67565

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@furkanonder furkanonder commented Jun 8, 2023 •
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@furkanonder furkanonder added the performance Performance or resource usage label Aug 5, 2023
@furkanonder furkanonder changed the title GH-67565: remove redundant C-contiguity check in getargs.c gh-67565: remove redundant C-contiguity check in getargs.c Aug 5, 2023
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furkanonder commented Aug 6, 2023

CC: @vstinner

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vstinner commented Aug 16, 2023

cc @serhiy-storchaka

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serhiy-storchaka commented Aug 16, 2023

It looks like the original old Stefan's patch. But currently most functions use Argument Clinic which copied a code from getargs.c, so now there are a lot of PyBuffer_IsContiguouss in the generated code. Argument Clinic should be updated too. And there are unneeded contiguity tests in other code: #67565 (comment).

@furkanonder furkanonder changed the title gh-67565: remove redundant C-contiguity check in getargs.c gh-67565: remove redundant C-contiguity checks Sep 10, 2023
@AlexWaygood AlexWaygood removed their request for review September 10, 2023 19:22
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furkanonder commented Sep 26, 2023

@ericsnowcurrently Thank you very much for your valuable feedbacks. I've made some changes. Can you review it again?

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erlend-aasland commented Oct 4, 2023

@furkanonder, can you resolve the conflict, please?

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serhiy-storchaka reviewed Oct 4, 2023
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LGTM. I have minor suggestion for tests.

Since this PR adds new tests, I think that it is better to split it on two parts:

  1. Tests only. This change will be backported to 3.12 and 3.11 to avoid regressions.
  2. Other changes. So we can be sure that they do not affect the user code.

@furkanonder furkanonder added the 3.13 bugs and security fixes label Oct 17, 2023
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erlend-aasland commented Oct 20, 2023

cc. @ericsnowcurrently, who requested changes.

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serhiy-storchaka reviewed Oct 20, 2023
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serhiy-storchaka approved these changes Oct 20, 2023
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LGTM.

@serhiy-storchaka serhiy-storchaka merged commit 32c37fe into python:main Oct 23, 2023
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serhiy-storchaka commented Oct 23, 2023

Thank you for your contribution, Furkan. It took a long time because I wasn't sure it was completely safe. But I hope the new tests will catch the bug if we are wrong.

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furkanonder commented Oct 26, 2023

@serhiy-storchaka You're welcome.

aisk pushed a commit to aisk/cpython that referenced this pull request Feb 11, 2024
@furkanonder @skrah @aisk
pythongh-67565: Remove redundant C-contiguity checks (pythonGH-105521)
b2505b8 
Co-authored-by: Stefan Krah <skrah@bytereef.org>
Glyphack pushed a commit to Glyphack/cpython that referenced this pull request Sep 2, 2024
@furkanonder @skrah @Glyphack
pythongh-67565: Remove redundant C-contiguity checks (pythonGH-105521)
64491a0 
Co-authored-by: Stefan Krah <skrah@bytereef.org>
@furkanonder furkanonder removed the 3.13 bugs and security fixes label Dec 31, 2024
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@serhiy-storchaka serhiy-storchaka serhiy-storchaka approved these changes

@erlend-aasland erlend-aasland Awaiting requested review from erlend-aasland erlend-aasland is a code owner

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