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[skip ci] Mention AVX(2) detection fix for MSVC in UPGRADING

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This is likely more important than the possibility to build for AVX-512
since our official binaries have build time support for SSE2 only.  So
proper detection of AVX may make a huge performance difference for
`base64_*()` and some MBString functionality.

Closes GH-16248.
This commit is contained in:
Christoph M. Becker
2024-10-05 15:33:06 +02:00
parent 5ddc8f71fa
commit 9939a990fb
1 changed files with 2 additions and 0 deletions
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UPGRADING
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@@ -1171,6 +1171,8 @@ PHP 8.4 UPGRADE NOTES
* Building with Visual Studio now requires at least Visual Studio 2019 (Visual
Studio 2022 is recommended, though).
* AVX(2) CPU support is now properly detected for MSVC builds.
* Native AVX-512 builds are now supported (--enable-native-intrinsics=avx512).
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