[libc] [llvm] [libc][math] Refactor expf implementation to header-only in src/__support/math folder. (PR #143790)

[Alexey Samsonov via llvm-commits]

================
@@ -2569,6 +2569,10 @@ libc_math_function(
 
 libc_math_function(
     name = "expf",
+    hdrs = [
----------------
vonosmas wrote:

(we would also need this if/when we'd be exposing these new shared math headers via Bazel as well.

https://github.com/llvm/llvm-project/pull/143790