[PATCH] D41843: [libcxx] implement <experimental/simd> where expressions.

[Tim Shen via Phabricator via cfe-commits]

timshen created this revision.
timshen added reviewers: mclow.lists, EricWF.
Herald added a subscriber: sanjoy.

Where expressions have three cases:
*) const_where_expression<simd_mask<...>, simd<...>>, we store two
references to the mask and the simd<> value.
*) const_where_expression<simd_mask<...>, simd_mask<...>>, we store two
references to the mask and the simd_mask<> value.
*) const_where_expression<bool, _Tp>, we store a bool by value, and _Tp
by reference.


https://reviews.llvm.org/D41843

Files:
  libcxx/include/experimental/simd
  libcxx/test/std/experimental/simd/simd.whereexpr/const_where_expression.pass.cpp
  libcxx/test/std/experimental/simd/simd.whereexpr/where.pass.cpp
  libcxx/test/std/experimental/simd/simd.whereexpr/where_expression.pass.cpp

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