[libc-commits] [libc] [libc][math][c23] Add dadd{l, f128} and ddiv{l, f128} C23 math functions (PR #100456)

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https://github.com/overmighty approved this pull request.

Just this last request and it LGTM. You can add the `fadd` docs change back if you want, since Tue approves of it.

https://github.com/llvm/llvm-project/pull/100456