[libc] [llvm] [libc][math] Add float-only implementation for sinf / cosf. (PR #161680)

[via llvm-commits]

lntue wrote:

> Shall we revert this PR for investigation and land this work later without any breakage?

I'm working on a fix.  Will send out PR soon.

https://github.com/llvm/llvm-project/pull/161680