[PATCH] D86730: SVML support for log2

[Alexander Yermolovich via Phabricator via llvm-commits]

ayermolo created this revision.
ayermolo added a project: LLVM.
ayermolo requested review of this revision.

Although LLVM supports vectorization of loops containing log2, it did not support using SVML implementation of it. Added support so that when clang is invoked with -fveclib=SVML now an appropriate SVML library log2 implementation will be invoked.

Follow up on: https://reviews.llvm.org/D77114

Tests:
Added unit tests to svml-calls.ll, svml-calls-finite.ll. Can be run with llvm-lint.
Created a simple c++ file that tests log2, and used clang+ to build it, and output final assembly.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86730

Files:
  llvm/include/llvm/Analysis/VecFuncs.def
  llvm/test/Transforms/LoopVectorize/X86/svml-calls-finite.ll
  llvm/test/Transforms/LoopVectorize/X86/svml-calls.ll

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