[libc-commits] [libc] [llvm] [libc][math][c23] Add rsqrtf() function (PR #159615)

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overmighty wrote:

@amemov FYI, you need to write "Fixes #<issue number>" or "Closes #<issue number>" (or a few variations of that) instead of "Addresses #<issue number>" for GitHub to automatically close the issue once the PR is merged.

https://github.com/llvm/llvm-project/pull/159615