[FFmpeg-cvslog] Compile error in synth_filter_neon.S

[Memphiz]

Hi there,

latly i realised a compile error in the arm code of synth_filter_neon.S. 
For AARCH64 the syntax of the BIC opcode is a bit different if i read 
the docs correct.

For AARCH64 and 64bit GP Registers the syntax is

BIC Xd, Xn, Xm{, shift #amount} ; 64-bit general registers

Indeed i get a compile error when using xcode6.2

:32:21: error: invalid operand for instruction
bic x7, x7,#63 <https://github.com/FFmpeg/FFmpeg/pull/63>

Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix

It seems to compile fine on Xcode7 and its clang but i have no clue why ...

Working syntax would be:
bic x7, x7, x7, lsl#63 <https://github.com/FFmpeg/FFmpeg/pull/63>

Not sure if the semantics are still correct. I have not the slightest 
clue of arm assembler i have to admit.


Sorry couldn't reply to the commit which introduced this because i 
wasn't subscribed to the list at that time.


For further reference i also commented on your github mirror about that 
already (and wonder why Janne Grunau doesn't get those emails from 
github...):


https://github.com/FFmpeg/FFmpeg/commit/705f5e5e155f6f280a360af220fc5b30cfcee702


Any comment would be great.


Kind Regards

Memphiz