[x265] [PATCH] avx2: integral_init4h -> added 'INTEGRAL_FOUR_HORIZONTAL_4' macro to reduce data movement for '4' element case

[Ashok Kumar Mishra]

pushed

On Wed, Jun 14, 2017 at 12:03 PM, <praveen at multicorewareinc.com> wrote:

> # HG changeset patch
> # User Praveen Tiwari <praveen at multicorewareinc.com>
> # Date 1497422024 -19800
> #      Wed Jun 14 12:03:44 2017 +0530
> # Node ID 65e038ecbbf63a2f449ccf52358c5fbbec408b27
> # Parent  28bbc349d17035a3c1fcdfbdca3b8e21ae6b669b
> avx2: integral_init4h -> added 'INTEGRAL_FOUR_HORIZONTAL_4' macro to
> reduce data movement for '4' element case
>
> diff -r 28bbc349d170 -r 65e038ecbbf6 source/common/x86/seaintegral.asm
> --- a/source/common/x86/seaintegral.asm Wed Jun 07 17:06:57 2017 +0530
> +++ b/source/common/x86/seaintegral.asm Wed Jun 14 12:03:44 2017 +0530
> @@ -148,11 +148,6 @@
>      jnz     .loop
>      RET
>
> -;----------------------------------------------------------
> -------------------
> -;static void integral_init4h_c(uint32_t *sum, pixel *pix, intptr_t stride)
> -;----------------------------------------------------------
> -------------------
> -INIT_YMM avx2
> -
>  %macro INTEGRAL_FOUR_HORIZONTAL_16 0
>      pmovzxbw       m0, [r1]
>      pmovzxbw       m1, [r1 + 1]
> @@ -163,6 +158,24 @@
>      paddw          m0, m1
>  %endmacro
>
> +%macro INTEGRAL_FOUR_HORIZONTAL_4 0
> +    movd       xm0, [r1]
> +    movd       xm1, [r1 + 1]
> +    pmovzxbw   xm0, xm0
> +    pmovzxbw   xm1, xm1
> +    paddw      xm0, xm1
> +    movd       xm1, [r1 + 2]
> +    pmovzxbw   xm1, xm1
> +    paddw      xm0, xm1
> +    movd       xm1, [r1 + 3]
> +    pmovzxbw   xm1, xm1
> +    paddw      xm0, xm1
> +%endmacro
> +
> +;----------------------------------------------------------
> -------------------
> +;static void integral_init4h(uint32_t *sum, pixel *pix, intptr_t stride)
> +;----------------------------------------------------------
> -------------------
> +INIT_YMM avx2
>  cglobal integral4h, 3, 5, 3
>      lea            r3, [4 * r2]
>      sub            r0, r3
> @@ -205,7 +218,7 @@
>      jmp             .end
>
>  .loop_4:
> -    INTEGRAL_FOUR_HORIZONTAL_16
> +    INTEGRAL_FOUR_HORIZONTAL_4
>      pmovzxwd       xm0, xm0
>      movu           xm1, [r0]
>      paddd          xm0, xm1
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>
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