[FFmpeg-devel] [PATCH] hevcdsp_idct_neon.S: Avoid unnecessary mov.

Reimar.Doeffinger at gmx.de Reimar.Doeffinger at gmx.de
Wed Jul 26 22:15:27 EEST 2023


From: Reimar Döffinger <Reimar.Doeffinger at gmx.de>

ret can be given an argument instead.
This is also consistent with how other assembler code
in FFmpeg does it.
---
 libavcodec/aarch64/hevcdsp_idct_neon.S | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/libavcodec/aarch64/hevcdsp_idct_neon.S b/libavcodec/aarch64/hevcdsp_idct_neon.S
index b7f23386a4..f7142c939c 100644
--- a/libavcodec/aarch64/hevcdsp_idct_neon.S
+++ b/libavcodec/aarch64/hevcdsp_idct_neon.S
@@ -617,8 +617,7 @@ function ff_hevc_idct_16x16_\bitdepth\()_neon, export=1
 
         add              sp,  sp,  #640
 
-        mov             x30, x15
-        ret
+        ret             x15
 endfunc
 .endm
 
@@ -814,8 +813,7 @@ function ff_hevc_idct_32x32_\bitdepth\()_neon, export=1
 .endr
 
         add             sp,  sp,  #2432
-        mov             x30, x15
-        ret
+        ret             x15
 endfunc
 .endm
 
-- 
2.37.1 (Apple Git-137.1)



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