[FFmpeg-devel] [PATCH] lavfi/nlmeans: fixup aarch64 assembly with clang
Clément Bœsch
u at pkh.me
Fri Jul 27 11:14:52 EEST 2018
On Fri, Jul 27, 2018 at 12:03:46AM +0300, Jan Ekström wrote:
> Clang is more strict about some things.
> ---
> libavfilter/aarch64/vf_nlmeans_neon.S | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/libavfilter/aarch64/vf_nlmeans_neon.S b/libavfilter/aarch64/vf_nlmeans_neon.S
> index 6308a428db..ac16157bbd 100644
> --- a/libavfilter/aarch64/vf_nlmeans_neon.S
> +++ b/libavfilter/aarch64/vf_nlmeans_neon.S
> @@ -22,7 +22,7 @@
>
> // acc_sum_store(ABCD) = {X+A, X+A+B, X+A+B+C, X+A+B+C+D}
> .macro acc_sum_store x, xb
> - dup v24.4S, v24.4S[3] // ...X -> XXXX
> + dup v24.4s, v24.s[3] // ...X -> XXXX
can you keep the capitalized form?
> ext v25.16B, v26.16B, \xb, #12 // ext(0000,ABCD,12)=0ABC
> add v24.4S, v24.4S, \x // XXXX+ABCD={X+A,X+B,X+C,X+D}
> add v24.4S, v24.4S, v25.4S // {X+A,X+B+A,X+C+B,X+D+C} (+0ABC)
> @@ -37,7 +37,7 @@ function ff_compute_safe_ssd_integral_image_neon, export=1
> movi v26.4S, #0 // used as zero for the "rotations" in acc_sum_store
> sub x3, x3, w6, UXTW // s1 padding (s1_linesize - w)
> sub x5, x5, w6, UXTW // s2 padding (s2_linesize - w)
> - sub x9, x0, x1, UXTW #2 // dst_top
> + sub x9, x0, w1, UXTW #2 // dst_top
> sub x1, x1, w6, UXTW // dst padding (dst_linesize_32 - w)
> lsl x1, x1, #2 // dst padding expressed in bytes
> 1: mov w10, w6 // width copy for each line
LGTM otherwise, thx
--
Clément B.
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