[x265] [PATCH] asm:intra_pred4_x filtering

[dtyx265 at gmail.com]

# HG changeset patch
# User David T Yuen <dtyx265 at gmail.com>
# Date 1428172954 25200
# Node ID 79611624ed8fcaa312473687567ffde76543c417
# Parent  bb771744a75d4493a35ec5e9d76aaee1fa039f28
asm:intra_pred4_x filtering

Use r4 to hold address of constant to reduce code size

diff -r bb771744a75d -r 79611624ed8f source/common/x86/intrapred16.asm
--- a/source/common/x86/intrapred16.asm	Fri Apr 03 09:22:47 2015 -0700
+++ b/source/common/x86/intrapred16.asm	Sat Apr 04 11:42:34 2015 -0700
@@ -744,21 +744,22 @@
 
 ALIGN 16
 .do_filter4x4:
+    lea     r4, [pd_16]
     pmaddwd m2, m0
-    paddd   m2, [pd_16]
+    paddd   m2, [r4]
     psrld   m2, 5
 
     pmaddwd m3, m1
-    paddd   m3, [pd_16]
+    paddd   m3, [r4]
     psrld   m3, 5
     packssdw m2, m3
 
     pmaddwd m4, m6
-    paddd   m4, [pd_16]
+    paddd   m4, [r4]
     psrld   m4, 5
 
     pmaddwd m5, m7
-    paddd   m5, [pd_16]
+    paddd   m5, [r4]
     psrld   m5, 5
     packssdw m4, m5