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[libc++] Mention __cxa_init_primary_exception in the ABI changelog

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Louis Dionne 2024-01-22 12:18:39 -05:00
parent 530c72b498
commit ed760d170f
1 changed files with 12 additions and 0 deletions
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libcxx/lib/abi/CHANGELOG.TXT
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@ -16,6 +16,18 @@ New entries should be added directly below the "Version" header.
Version 18.0
------------
* [libc++abi] Implement __cxa_init_primary_exception and use it to optimize std::make_exception_ptr (#65534)
This patch implements __cxa_init_primary_exception, an extension to the Itanium C++ ABI.
This extension is already present in both libsupc++ and libcxxrt. This patch also starts
making use of this function in std::make_exception_ptr: instead of going through a full
throw/catch cycle, we are now able to initialize an exception directly, thus making
std::make_exception_ptr around 30x faster. Adding a new symbol is not an ABI break.
All platforms
-------------
Symbol added: __cxa_init_primary_exception
* [libc++] Simplify the implementation of locale::id
This patch removes a symbol defined in the library for std::locale::id::__init().