[libc-commits] [PATCH] D129005: [libc][math] Improved performance of exp2f function.

[Kirill Okhotnikov via Phabricator via libc-commits]

orex created this revision.
orex added reviewers: lntue, sivachandra.
Herald added subscribers: libc-commits, ecnelises, tschuett, mgorny.
Herald added projects: libc-project, All.
orex requested review of this revision.

New exp2 function algorithm:

1. Improved performance: 19.211 vs 29.002 by core-math perf tool.
2. Improved accuracy. Only two special values left.
3. Lookup table size reduced twice.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D129005

Files:
  libc/src/math/generic/common_constants.cpp
  libc/src/math/generic/common_constants.h
  libc/src/math/generic/exp2f.cpp
  libc/test/src/math/CMakeLists.txt

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