[Pixman] [PATCH 1/2] MIPS: DSPr2: Added over_n_8_8888 and over_n_8_0565 fast paths.

[Siarhei Siamashka]

On Thu, May 3, 2012 at 1:03 AM, Nemanja Lukic <nlukic at mips.com> wrote:
> From: Nemanja Lukic <nemanja.lukic at rt-rk.com>
>
> Performance numbers before/after on MIPS-74kc @ 1GHz
>
> Referent (before):
>
> lowlevel-blt-bench:
>     over_n_8_8888 =  L1:  10.40  L2:   9.79  M:  8.47 ( 33.62%)  HT:  7.64  VT:  7.59  R:  7.48  RT:  5.30 (  40Kops/s)
>     over_n_8_0565 =  L1:   7.40  L2:   7.23  M:  6.78 ( 17.94%)  HT:  6.23  VT:  6.17  R:  6.14  RT:  4.62 (  37Kops/s)
>
> Optimized:
>
> lowlevel-blt-bench:
>     over_n_8_8888 =  L1:  27.25  L2:  26.24  M: 18.15 ( 72.12%)  HT: 14.52  VT: 14.31  R: 13.83  RT:  7.57 (  48Kops/s)
>     over_n_8_0565 =  L1:  18.91  L2:  17.59  M: 15.06 ( 39.90%)  HT: 12.18  VT: 11.98  R: 11.83  RT:  6.80 (  46Kops/s)
> ---
>  pixman/pixman-mips-dspr2-asm.S |  224 ++++++++++++++++++++++++++++++++++++++++
>  pixman/pixman-mips-dspr2-asm.h |   67 ++++++++++++
>  pixman/pixman-mips-dspr2.c     |   10 ++
>  3 files changed, 301 insertions(+), 0 deletions(-)

Looks OK to me. And passes the test suite.

-- 
Best regards,
Siarhei Siamashka