[Bug c++/54972] O2 breaks something in 4.6.3

[sch...@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54972



Andreas Schwab <sch...@linux-m68k.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |RESOLVED

         Resolution|                            |INVALID



--- Comment #4 from Andreas Schwab <sch...@linux-m68k.org> 2012-10-18 11:58:02 
UTC ---

You need -Wstrict-aliasing=2.  Most likely lzo1x_decompress_safe overwrites the

beginning of dest when it tries to stuff a lzo_uint into the space allocated

for dest_len.  Use correct types.