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[Bug middle-end/29440] 4.2 20061007 experimental misscompiles libavcodec/h264.o



------- Comment #4 from pluto at agmk dot net  2006-10-12 14:40 -------
(In reply to comment #3)
> Does it work when compiled with -O0 instead of -O4?  How about -O1?
> 
> Besies above, I noticed that the asm in get_cabac looks to be clobbering memory
> but is not marked as such.
> 

Andrew, this testcase violates aliasing rules.

h264.c: In function 'filter_mb_fast':
h264.c:7074: warning: dereferencing type-punned pointer will break
                      strict-aliasing rules


-- 

pluto at agmk dot net changed:

           What    |Removed                     |Added
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                 CC|                            |pluto at agmk dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29440


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