[x264-devel] [bug] asm operand has impossible constraints (x86)

[Sérgio Basto]

Hi, Updating and correct my information 

On Seg, 2015-08-10 at 18:12 +0100, Sérgio Basto wrote:
> > I can't tell if that is a bug in the build tools or in x264 and I
> > don't have pratical experience in assembler.
> 
> Strange , we build it on RPMFusion with  :
> %ifarch i686 armv5tel armv6l
>    --disable-asm \
> %endif

With i686 we in RPMFusion, do two builds one disabling asm and one with
asm enabled, this second build is installed in /usr/lib/sse2 dir . 
>From what I understood, i686 CPUs could be sse2-capable (or not) and for
them we build with asm and install it in /usr/lib/sse2/ . Applications
could detect if CPU is sse2-capable and if it is loads x264
from /usr/lib/sse2/ .


rpm -ql x264-libs.i686
/usr/lib/libx264.so.142
(...)
/usr/lib/sse2/libx264.so.142


> but today it compiles well, with asm enabled in i686, only tested in
> i686, for Fedora21 and Fedora22 , it seems to me that is gcc version
> or
> asm version (yasm.i686 1.2.0-7.fc22) and IIRC and with -fPIC  flag ...
> 
> 
> 
> > PS:
> > I originally reported this at
> https://trac.videolan.org/vlc/ticket/15226
> > (closed as you guys don't seem to use trac)

-- 
Sérgio M. B.