[FFmpeg-cvslog] x86/v210dec: don't reserve more xmm regs than needed

James Almer git at videolan.org
Fri May 3 07:35:27 EEST 2019


ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Fri May  3 01:09:46 2019 -0300| [abf1aa87ab1a66095919079de98fb501614d6e6a] | committer: James Almer

x86/v210dec: don't reserve more xmm regs than needed

Prevents pointless register saving on win64 for the sse3 and avx
versions of the function.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=abf1aa87ab1a66095919079de98fb501614d6e6a
---

 libavcodec/x86/v210.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/x86/v210.asm b/libavcodec/x86/v210.asm
index 5a71ba41b2..d96a7b7f5a 100644
--- a/libavcodec/x86/v210.asm
+++ b/libavcodec/x86/v210.asm
@@ -39,7 +39,7 @@ SECTION .text
 %macro v210_planar_unpack 1
 
 ; v210_planar_unpack(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)
-cglobal v210_planar_unpack_%1, 5, 5, 8
+cglobal v210_planar_unpack_%1, 5, 5, 6 + 2 * cpuflag(avx2)
     movsxdifnidn r4, r4d
     lea    r1, [r1+2*r4]
     add    r2, r4



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