[FFmpeg-cvslog] aarch64: increase default alignment for functions and constants

[Ramiro Polla]

ffmpeg | branch: master | Ramiro Polla <ramiro.polla at gmail.com> | Fri May 16 01:05:57 2025 +0200| [b6803bf10419770737f8dd77497b9afb8ffebcff] | committer: Ramiro Polla

aarch64: increase default alignment for functions and constants

Use 16-byte alignment (align=4) instead of 4-byte (align=2) in the function and
const macros. This improves instruction fetch and NEON load performance on
modern AArch64 CPUs.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b6803bf10419770737f8dd77497b9afb8ffebcff
---

 libavutil/aarch64/asm.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/aarch64/asm.S b/libavutil/aarch64/asm.S
index 50ce7d4dfd..2e4e451ec2 100644
--- a/libavutil/aarch64/asm.S
+++ b/libavutil/aarch64/asm.S
@@ -196,7 +196,7 @@ DISABLE_SVE2
         .popsection
 #endif
 
-.macro  function name, export=0, align=2
+.macro  function name, export=0, align=4
     .macro endfunc
 ELF     .size   \name, . - \name
 FUNC    .endfunc
@@ -217,7 +217,7 @@ FUNC    .func   \name
     .endif
 .endm
 
-.macro  const   name, align=2, relocate=0
+.macro  const   name, align=4, relocate=0
     .macro endconst
 ELF     .size   \name, . - \name
         .purgem endconst