[libc-commits] [libc] [libc] [search] implement hcreate(_r)/hsearch(_r)/hdestroy(_r) (PR #73469)

[Schrodinger ZHU Yifan via libc-commits]

SchrodingerZhu wrote:

@lntue I addressed your code reviews in latest commit. 

There is one complication: `SSE2` should be enabled on default, so I add `DISABLE_SSE2_OPT` as a negative feature flag instead.

https://github.com/llvm/llvm-project/pull/73469