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

[via libcxx-commits]

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xbcnn wrote:

The `Arg(0)` does cover `empty` container case, but not `expensive` key scenario, because both `with_existent_key` and `with_nonexistent_key` use random keys (especially for `std::string` keys with random sizes). To better demonstrate the differences, we should add a dedicated `expensive` key case.

How about keeping `Arg(0)` (which remains useful for other benchmarks) and adding `with_expensive_key_empty` for cases here?


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