[all-commits] [llvm/llvm-project] ee8992: [libc] Implement double precision FMA for targets ...

[lntue via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ee8992770754d186c9217d35cccd339efc55a36b
      https://github.com/llvm/llvm-project/commit/ee8992770754d186c9217d35cccd339efc55a36b
  Author: Tue Ly <lntue at google.com>
  Date:   2022-06-10 (Fri, 10 Jun 2022)

  Changed paths:
    M libc/src/__support/FPUtil/FMA.h
    M libc/src/__support/FPUtil/generic/FMA.h
    M libc/src/math/CMakeLists.txt
    M libc/test/src/math/CMakeLists.txt
    M libc/test/src/math/FmaTest.h
    M libc/test/src/math/fma_test.cpp
    M libc/test/src/math/fmaf_test.cpp

  Log Message:
  -----------
  [libc] Implement double precision FMA for targets without FMA instructions.

Implement double precision FMA (Fused Multiply-Add) for targets without
FMA instructions using __uint128_t to store the intermediate results.

Reviewed By: michaelrj, sivachandra

Differential Revision: https://reviews.llvm.org/D124495