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GH-131278: Support building using "computed gotos" for clang-cl on Windows #131279

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Merged
merged 9 commits into from
Mar 17, 2025
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GH-131278: Support building using "computed gotos" for clang-cl on Windows #131279

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98de4c1
Add optimizing flag `WITH_COMPUTED_GOTOS` to support such builds using
chris-eibl Mar 15, 2025
86cb64e
ups - double backticks needed
chris-eibl Mar 15, 2025
3aabeea
Apply suggestions from code review
chris-eibl Mar 15, 2025
ca22c81
remove space before *
chris-eibl Mar 15, 2025
897c527
revert :prog:
chris-eibl Mar 15, 2025
1f5b55f
add whats new
chris-eibl Mar 15, 2025
905d2e4
Revert "add whats new"
chris-eibl Mar 17, 2025
fd3cb86
apply Steve's suggestion to blurb
chris-eibl Mar 17, 2025
59dac20
fix missing newline in blurb
chris-eibl Mar 17, 2025
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5 changes: 5 additions & 0 deletions Doc/whatsnew/3.14.rst
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Expand Up @@ -1437,6 +1437,11 @@ Build changes
with :c:expr:`Py_NO_LINK_LIB`. (Contributed by Jean-Christophe
Fillion-Robin in :gh:`82909`.)

* building with clang-cl on Windows now supports PGO (profile guided
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Suggested change
* building with clang-cl on Windows now supports PGO (profile guided
* clang-cl builds on Windows now work with ``--pgo`` (profile guided

optimization), uses ``-flto=thin`` and can be configured to use
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optimization), uses ``-flto=thin`` and can be configured to use
optimization), and can be configured to use

Is using -flto=thin important to call out? It shouldn't change the ABI of the build output at all, and it's not configurable.

computed gotos. (Contributed by Chris Eibl in
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IMHO "computed gotos and/or tail calls" would be better here, but up to @Fidget-Spinner 's liking :)

:gh:`130090`, :gh:`131035` and :gh:`131278`).

.. _whatsnew314-pep761:

PEP 761: Discontinuation of PGP signatures
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