[PATCH v2 5/6] rs6000: Add support for SSE4.1 "floor" intrinsics

[Bill Schmidt]

Hi Paul,

LGTM!  Recommend maintainers approve.

Bill

On 7/16/21 8:50 AM, Paul A. Clarke wrote:
> 2021-07-16  Paul A. Clarke  <pc@us.ibm.com>
>
> gcc
> 	* config/rs6000/smmintrin.h (_mm_floor_pd, _mm_floor_ps,
> 	_mm_floor_sd, _mm_floor_ss): New.
> ---
> v2: Improve formatting per review from Bill.
>
>   gcc/config/rs6000/smmintrin.h | 32 ++++++++++++++++++++++++++++++++
>   1 file changed, 32 insertions(+)
>
> diff --git a/gcc/config/rs6000/smmintrin.h b/gcc/config/rs6000/smmintrin.h
> index cad770a67631..5960991e0af7 100644
> --- a/gcc/config/rs6000/smmintrin.h
> +++ b/gcc/config/rs6000/smmintrin.h
> @@ -264,6 +264,38 @@ _mm_ceil_ss (__m128 __A, __m128 __B)
>     return r;
>   }
>   
> +__inline __m128d
> +__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
> +_mm_floor_pd (__m128d __A)
> +{
> +  return (__m128d) vec_floor ((__v2df) __A);
> +}
> +
> +__inline __m128
> +__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
> +_mm_floor_ps (__m128 __A)
> +{
> +  return (__m128) vec_floor ((__v4sf) __A);
> +}
> +
> +__inline __m128d
> +__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
> +_mm_floor_sd (__m128d __A, __m128d __B)
> +{
> +  __v2df r = vec_floor ((__v2df) __B);
> +  r[1] = ((__v2df) __A)[1];
> +  return (__m128d) r;
> +}
> +
> +__inline __m128
> +__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
> +_mm_floor_ss (__m128 __A, __m128 __B)
> +{
> +  __v4sf r = (__v4sf) __A;
> +  r[0] = __builtin_floor (((__v4sf) __B)[0]);
> +  return r;
> +}
> +
>   /* Return horizontal packed word minimum and its index in bits [15:0]
>      and bits [18:16] respectively.  */
>   __inline __m128i