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commit 55afe49dd022ee391a7804793544d8617957fece Author: Andreas Rheinhardt <[email protected]> AuthorDate: Fri Feb 27 13:24:04 2026 +0100 Commit: Andreas Rheinhardt <[email protected]> CommitDate: Fri Feb 27 18:25:31 2026 +0100 avcodec/x86/bswapdsp: combine shifting, avoid check for AVX2 This avoids a check and a shift if >=8 elements are processed; it adds a check if < 8 elements are processed (which should be rare). No change in benchmarks here. Reviewed-by: Lynne <[email protected]> Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavcodec/x86/bswapdsp.asm | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/libavcodec/x86/bswapdsp.asm b/libavcodec/x86/bswapdsp.asm index 12fd494ffe..f89ca76cf1 100644 --- a/libavcodec/x86/bswapdsp.asm +++ b/libavcodec/x86/bswapdsp.asm @@ -33,11 +33,12 @@ SECTION .text ; %1 = aligned/unaligned %macro BSWAP_LOOPS 1 mov r3d, r2d - sar r3d, 3 - jz .left4_%1 %if cpuflag(avx2) - sar r3d, 1 + sar r3d, 4 jz .left8_%1 +%else + sar r3d, 3 + jz .left4_%1 %endif .loop8_%1: mov%1 m0, [r1 + 0] _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
