[FFmpeg-cvslog] avcodec/bitstream: try to workaround internal compiler bug in gcc 4.2

[Michael Niedermayer]

On Sat, Jun 21, 2014 at 09:16:31AM +0200, Reimar Döffinger wrote:
> 
> 
> On 20.06.2014, at 21:59, git at videolan.org (Michael Niedermayer) wrote:
> 
> > ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Jun 20 21:54:23 2014 +0200| [329898aa45f5f8e8b89386ecd40b8db96746d53c] | committer: Michael Niedermayer
> > 
> > avcodec/bitstream: try to workaround internal compiler bug in gcc 4.2
> > 
> > gcc 4.2 seems not maintained anymore so theres no option besides
> > just working around it.
> > 
> > Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> > 
> >> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=329898aa45f5f8e8b89386ecd40b8db96746d53c
> > ---
> > 
> > libavcodec/bitstream.c |    2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c
> > index e3e870f..eb36c6f 100644
> > --- a/libavcodec/bitstream.c
> > +++ b/libavcodec/bitstream.c
> > @@ -163,7 +163,7 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
> >     int table_size, table_index, index, code_prefix, symbol, subtable_bits;
> >     int i, j, k, n, nb, inc;
> >     uint32_t code;
> > -    volatile VLC_TYPE (*table)[2];
> > +    volatile VLC_TYPE (* volatile table)[2];
> 
> Could you add a comment about it as well?
> I think it would be better if it could be seen that this strange double volatile is on purpose without going through the history.

done


thanks

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

What does censorship reveal? It reveals fear. -- Julian Assange
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-cvslog/attachments/20140621/3c6f1cf9/attachment.asc>