[libc-commits] [PATCH] D123335: [libc] Add support for x86-64 targets that do not have FMA instructions.

[Tue Ly via Phabricator via libc-commits]

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

Make FMA flag checks more accurate for x86-64 targets, and refactor
polyeval to use multiply and add instead when FMA instructions are not
available.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D123335

Files:
  libc/src/__support/FPUtil/CMakeLists.txt
  libc/src/__support/FPUtil/FMA.h
  libc/src/__support/FPUtil/PolyEval.h
  libc/src/__support/FPUtil/aarch64/FMA.h
  libc/src/__support/FPUtil/generic/CMakeLists.txt
  libc/src/__support/FPUtil/generic/FMA.h
  libc/src/__support/FPUtil/multiply_add.h
  libc/src/__support/FPUtil/x86_64/FMA.h
  libc/src/__support/architectures.h
  libc/src/math/CMakeLists.txt
  libc/src/math/generic/CMakeLists.txt
  libc/src/math/generic/expm1f.cpp
  libc/src/math/generic/log10f.cpp
  libc/src/math/generic/log1pf.cpp
  libc/src/math/generic/logf.cpp
  utils/bazel/llvm-project-overlay/libc/BUILD.bazel

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