[FFmpeg-cvslog] x86/vf_hflip: use xor to zero initialize registers

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Thu Dec  7 19:28:19 2017 -0300| [f2aa0ce5a059cf02ee4cbd68111dd2ad622edc85] | committer: James Almer

x86/vf_hflip: use xor to zero initialize registers

Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f2aa0ce5a059cf02ee4cbd68111dd2ad622edc85
---

 libavfilter/x86/vf_hflip.asm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavfilter/x86/vf_hflip.asm b/libavfilter/x86/vf_hflip.asm
index 9f262ece5c..89d6d0c69b 100644
--- a/libavfilter/x86/vf_hflip.asm
+++ b/libavfilter/x86/vf_hflip.asm
@@ -32,7 +32,7 @@ SECTION .text
 INIT_XMM ssse3
 cglobal hflip_byte, 3, 5, 3, src, dst, w, r, x
     mova    m0, [pb_flip_byte]
-    mov     xq, 0
+    xor     xq, xq
     movsxdifnidn wq, wd
     mov     rq, wq
     and     rq, 2 * mmsize - 1
@@ -70,7 +70,7 @@ RET
 
 cglobal hflip_short, 3, 5, 3, src, dst, w, r, x
     mova    m0, [pb_flip_short]
-    mov     xq, 0
+    xor     xq, xq
     add     wd, wd
     mov     rq, wq
     and     rq, 2 * mmsize - 1