From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] avcodec/x86/audiodsp: add scalarproduct avx2
Date: Tue, 13 Sep 2022 11:28:16 +0200
Message-ID: <GV1P250MB07376A385FA06D27E8705C538F479@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <CAPYw7P7n-uC=9GKk7=AyHtwET1nH4JA64DBCu4rZQxeLTVuSew@mail.gmail.com>
Paul B Mahol:
>
> +INIT_YMM avx2
> +cglobal scalarproduct_int16, 3,3,2, v1, v2, order
> + add orderd, orderd
> + add v1q, orderq
> + add v2q, orderq
> + neg orderq
> + pxor m1, m1
> +.loop:
> + movu m0, [v1q + orderq]
> + pmaddwd m0, [v2q + orderq]
> + paddd m1, m0
> + add orderq, mmsize
> + jl .loop
> + HADDD m1, m0
> + movd eax, xm1
> + RET
>
avx2 asm functions are guarded by %if HAVE_AVX2_EXTERNAL (presumably not
all assemblers can handle them?).
- Andreas
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next prev parent reply other threads:[~2022-09-13 9:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-12 18:29 Paul B Mahol
2022-09-12 18:39 ` James Almer
2022-09-12 19:00 ` James Almer
2022-09-13 9:25 ` Paul B Mahol
2022-09-13 9:28 ` Andreas Rheinhardt [this message]
2022-09-13 9:35 ` Paul B Mahol
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