[PATCH] D62367: [X86] VP2INTERSECT clang

[Simon Pilgrim via Phabricator via cfe-commits]

RKSimon added inline comments.


================
Comment at: lib/Headers/avx512vlvp2intersectintrin.h:39
+
+static __inline__ void __DEFAULT_FN_ATTRS256
+_mm256_2intersect_epi32(__m256i __a, __m256i __b, __mmask8 *__m0, __mmask8 *__m1) {
----------------
craig.topper wrote:
> xiangzhangllvm wrote:
> > craig.topper wrote:
> > > Can you add doxygen comments for the new intrinsics? @RKSimon has been asking for it on other reviews. I forgot to say something in our internal review.
> > OK! But I really find many ntrinsicxxx.h have no doxygen comments, Is it like this format: ?
> > 
> > 
> > ```
> > /// Rounds up each element of the 128-bit vector of [4 x float] to an
> > ///    integer and returns the rounded values in a 128-bit vector of
> > ///    [4 x float].
> > ///
> > /// \headerfile <x86intrin.h>
> > ///
> > /// \code
> > /// __m128 _mm_ceil_ps(__m128 X);
> > /// \endcode
> > ///
> > /// This intrinsic corresponds to the <c> VROUNDPS / ROUNDPS </c> instruction.
> > ///
> > /// \param X
> > ///    A 128-bit vector of [4 x float] values to be rounded up.
> > /// \returns A 128-bit vector of [4 x float] containing the rounded values.
> > #define _mm_ceil_ps(X)       _mm_round_ps((X), _MM_FROUND_CEIL)
> > ```
> > 
> Yeah that looks right. Someone was kind enough to provide comments for some of the header files a few years ago, but it wasn't complete. I know avx512* especially are missing comments.
The hope is that these will get added as time goes on - usually it just requires a copy + paste of existing comments and tweak for ymm/zmm/whatever.

New intrinsics should always include documentation since the person adding it is the most likely to be able to correct describe it.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62367/new/

https://reviews.llvm.org/D62367