[PATCH] D53927: [AArch64] Enable libm vectorized functions via SLEEF

[Naoki Shibata via Phabricator via llvm-commits]

shibatch added a comment.

> That's because no commercial distro - if they ever decide to include SLEEF - will compile SLEEF for the maximum CPU feature-set possible. They do the exact opposite - they compile it for the lowest possible common denominator.
> 
> For example, on AArch64, you won't get distro libraries compiled specifically for -mcpu=thunderx2t99. Or on x86_64 you'll never get -mavx512ifma, for example.

Many applications and libraries including SLEEF use dispatchers to choose a code with which the available vector extension can be utilized.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D53927/new/

https://reviews.llvm.org/D53927