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authorClément Bœsch <u@pkh.me>2014-04-20 21:33:58 +0200
committerClément Bœsch <u@pkh.me>2014-04-20 21:33:58 +0200
commit62d31307c1c50af26eaba4896c23b66d8034c56d (patch)
tree4bd039de4fdb82d7c2a8509a403e5824f3ede058 /libavcodec/x86/vp9lpf.asm
parentf0d368d75819d552cbb5cd8ed6e51efb50d771da (diff)
downloadffmpeg-62d31307c1c50af26eaba4896c23b66d8034c56d.tar.gz
avcodec/x86/vp9lpf: add a comment above a bunch of SWAP.
Diffstat (limited to 'libavcodec/x86/vp9lpf.asm')
-rw-r--r--libavcodec/x86/vp9lpf.asm2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/x86/vp9lpf.asm b/libavcodec/x86/vp9lpf.asm
index 1e9c7bb902..c5db0caffb 100644
--- a/libavcodec/x86/vp9lpf.asm
+++ b/libavcodec/x86/vp9lpf.asm
@@ -419,6 +419,8 @@ SECTION .text
mova m14, [Q2]
mova m15, [Q3]
%else
+ ; In case of horizontal, P3..Q3 are already present in some registers due
+ ; to the previous transpose, so we just swap registers.
SWAP 8, 4, 12
SWAP 9, 5, 13
SWAP 10, 6, 14