2014-07-27 10:20 GMT+02:00 Christophe Gisquet <christophe.gisq...@gmail.com>:
> This is already used for qpel/luma filters.
And with patch.
From 4c9ef00c805b5ea81d96955bdfbc57ab7b383934 Mon Sep 17 00:00:00 2001
From: Christophe Gisquet <christophe.gisq...@gmail.com>
Date: Fri, 25 Jul 2014 15:08:49 +0200
Subject: [PATCH 10/13] x86: hevc_mc: load less data in epel filters
Before:
5679 decicycles in epel_bi, 2059976 runs, 37176 skips
3468 decicycles in epel_uni, 1040886 runs, 7690 skips
After:
5323 decicycles in epel_bi, 2059493 runs, 37659 skips
3262 decicycles in epel_uni, 1040871 runs, 7705 skips
---
libavcodec/x86/hevc_mc.asm | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/libavcodec/x86/hevc_mc.asm b/libavcodec/x86/hevc_mc.asm
index a4b7a03..f0ef6a2 100644
--- a/libavcodec/x86/hevc_mc.asm
+++ b/libavcodec/x86/hevc_mc.asm
@@ -176,15 +176,23 @@ QPEL_TABLE 12, 4, w, sse4
%else
%define rfilterq %2
%endif
- movdqu m0, [rfilterq ] ;load 128bit of x
+%if (%1 == 8 && %4 <= 4)
+%define %%load movd
+%elif (%1 == 8 && %4 <= 8) || (%1 > 8 && %4 <= 4)
+%define %%load movq
+%else
+%define %%load movdqu
+%endif
+
+ %%load m0, [rfilterq ]
%ifnum %3
- movdqu m1, [rfilterq+ %3] ;load 128bit of x+stride
- movdqu m2, [rfilterq+2*%3] ;load 128bit of x+2*stride
- movdqu m3, [rfilterq+3*%3] ;load 128bit of x+3*stride
+ %%load m1, [rfilterq+ %3]
+ %%load m2, [rfilterq+2*%3]
+ %%load m3, [rfilterq+3*%3]
%else
- movdqu m1, [rfilterq+ %3q] ;load 128bit of x+stride
- movdqu m2, [rfilterq+2*%3q] ;load 128bit of x+2*stride
- movdqu m3, [rfilterq+r3srcq] ;load 128bit of x+2*stride
+ %%load m1, [rfilterq+ %3q]
+ %%load m2, [rfilterq+2*%3q]
+ %%load m3, [rfilterq+r3srcq]
%endif
%if %1 == 8
--
1.9.2.msysgit.0
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