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GH-94841: Fix usage of Py_ALWAYS_INLINE #104409

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Merged
merged 1 commit into from
May 12, 2023
Merged

GH-94841: Fix usage of Py_ALWAYS_INLINE #104409

merged 1 commit into from
May 12, 2023

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brandtbucher
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@brandtbucher brandtbucher commented May 11, 2023 •
edited by bedevere-bot
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This silences a compiler warning on non-debug builds:

Objects/obmalloc.c:886:1: warning: always_inline function might not be inlinable [-Wattributes]
  886 | arena_map_get(OMState *state, pymem_block *p, int create)
      | ^~~~~~~~~~~~~

The issue is that Py_ALWAYS_INLINE only works for static inline functions.

I'm also going to run the benchmarks on this out of an abundance of caution, since (at least in theory) this could force the compiler to make poor inlining decisions it currently avoids.

@brandtbucher brandtbucher added skip news interpreter-core (Objects, Python, Grammar, and Parser dirs) needs backport to 3.11 only security fixes labels May 11, 2023
@brandtbucher brandtbucher self-assigned this May 11, 2023
@bedevere-bot bedevere-bot mentioned this pull request May 11, 2023
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corona10
corona10 approved these changes May 12, 2023
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lgtm

@brandtbucher
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No impact.

@brandtbucher brandtbucher merged commit a10b026 into python:main May 12, 2023
@miss-islington
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Thanks @brandtbucher for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11.
🐍🍒⛏🤖

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Sorry, @brandtbucher, I could not cleanly backport this to 3.11 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker a10b026f0fdceac42c4b928917894d77da996555 3.11

brandtbucher added a commit to brandtbucher/cpython that referenced this pull request May 12, 2023
@brandtbucher
[3.11] pythonGH-94841: Fix usage of Py_ALWAYS_INLINE (pythonGH-104409).
912cd13 
(cherry picked from commit a10b026)

Co-authored-by: Brandt Bucher <[email protected]>
@brandtbucher brandtbucher removed the needs backport to 3.11 only security fixes label May 12, 2023
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