tree a549b74a78bec5579422bdc716596600e507e19d
parent 4fbc1c93e6ab36cbe1ed4614bfafba81cbd0ee6b
author Siva Chandra Reddy <sivachandra@google.com> 1622787170 +0000
committer Copybara-Service <copybara-worker@google.com> 1629696026 -0700

[libc] Add range reduction functions based on Paine and Hanek algorithm.

These functions will be used in a future patch to implement
trigonometric functions. Unit tests have been added but to the
libc-long-running-tests suite. The unit tests long running because we
compare against MPFR computations performed at 1280 bits of precision.

Some cleanups or elimination of repeated patterns can be done as follow
up changes.

Differential Revision: https://reviews.llvm.org/D104817

GitOrigin-RevId: ca6b354229702ba9a36044f0941669ee82da8761