[PATCH] D42983: [clang-tidy] Add `readability-simd-intrinsics` check.

[Fangrui Song via Phabricator via cfe-commits]

MaskRay created this revision.
Herald added subscribers: cfe-commits, hintonda, kristof.beyls, xazax.hun, mgorny, aemerson, klimek.

Many architectures provide SIMD operations (e.g. x86 SSE/AVX, Power AltiVec/VSX,
ARM NEON). It is common that SIMD code implementing the same algorithm, is
written in multiple target-dispatching pieces to optimize for different
architectures or micro-architectures.

The C++ standard proposal P0214 and its extensions cover many common SIMD
operations. By migrating from target-dependent intrinsics to P0214 operations,
the SIMD code can be simplified and pieces for different targets can be unified.

Refer to http://wg21.link/p0214 for introduction and motivation for the
data-parallel standard library.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D42983

Files:
  clang-tidy/readability/CMakeLists.txt
  clang-tidy/readability/ReadabilityTidyModule.cpp
  clang-tidy/readability/SIMDIntrinsicsCheck.cpp
  clang-tidy/readability/SIMDIntrinsicsCheck.h
  docs/clang-tidy/checks/list.rst
  docs/clang-tidy/checks/readability-simd-intrinsics.rst

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