ffmpeg | branch: master | Martin Storsjö <mar...@martin.st> | Fri Mar 22 11:38:15 2024 +0200| [e3a54cabde5ea14a16e702cec8bf177a4c214962] | committer: Martin Storsjö
aarch64: hevc: Merge consecutive stores in put_hevc_\type\()_h16_8_neon This gets rid of a couple instructions, but the actual performance is almost identical on Cortex A72/A73. On Cortex A53, it is a handful of cycles faster. Signed-off-by: Martin Storsjö <mar...@martin.st> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e3a54cabde5ea14a16e702cec8bf177a4c214962 --- libavcodec/aarch64/hevcdsp_qpel_neon.S | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/libavcodec/aarch64/hevcdsp_qpel_neon.S b/libavcodec/aarch64/hevcdsp_qpel_neon.S index 815d897094..432558bb95 100644 --- a/libavcodec/aarch64/hevcdsp_qpel_neon.S +++ b/libavcodec/aarch64/hevcdsp_qpel_neon.S @@ -512,11 +512,10 @@ function ff_hevc_put_hevc_\type\()_h16_8_neon, export=1 .ifc \type, qpel mov dststride, #(MAX_PB_SIZE << 1) lsl x13, srcstride, #1 // srcstridel - mov x14, #((MAX_PB_SIZE << 2) - 16) + mov x14, #(MAX_PB_SIZE << 2) .else lsl x14, dststride, #1 // dststridel lsl x13, srcstride, #1 // srcstridel - sub x14, x14, #8 .endif add x10, dst, dststride // dstb add x12, src, srcstride // srcb @@ -527,10 +526,8 @@ function ff_hevc_put_hevc_\type\()_h16_8_neon, export=1 bl ff_hevc_put_hevc_h16_8_neon .ifc \type, qpel - st1 {v26.8h}, [dst], #16 - st1 {v28.8h}, [x10], #16 - st1 {v27.8h}, [dst], x14 - st1 {v29.8h}, [x10], x14 + st1 {v26.8h, v27.8h}, [dst], x14 + st1 {v28.8h, v29.8h}, [x10], x14 .else .ifc \type, qpel_bi ld1 {v16.8h, v17.8h}, [ x4], x16 @@ -549,10 +546,8 @@ function ff_hevc_put_hevc_\type\()_h16_8_neon, export=1 sqrshrun v28.8b, v28.8h, #6 sqrshrun v29.8b, v29.8h, #6 .endif - st1 {v26.8b}, [dst], #8 - st1 {v28.8b}, [x10], #8 - st1 {v27.8b}, [dst], x14 - st1 {v29.8b}, [x10], x14 + st1 {v26.8b, v27.8b}, [dst], x14 + st1 {v28.8b, v29.8b}, [x10], x14 .endif b.gt 1b // double line subs width, width, #16 _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
