[libcxx-commits] [libcxx] [libcxx] Avoid hash key in __hash_table::find() if it is empty. (PR #126837)

[via libcxx-commits]

xbcnn wrote:

@philnik777 
I have updated the benchmarks again -- added Arg(0), removed the `with_expensive_key_empty`, and removed `std::string` instantiation tests on `multi` associative containers to reduce total test time.  Now it passes all checks. 

Please help review the PR again when you have time. Thanks.


https://github.com/llvm/llvm-project/pull/126837