[libc-commits] [libc] [libc][arm] add more math.h entrypoints (PR #77839)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

ah, looks like we don't have implementations in libc/src/math/generic/ for `cos`, `sin`, and `tan`.

https://github.com/llvm/llvm-project/pull/77839