Re: HEAD encounters 'internal error': -O3 and above

[Adam Megacz <gcj at lists dot megacz dot com>]

More info: the compiler crashes when using -O3 and above.  Again, this
affects Linux and mingw targets.

Does anybody know what changes from O2 to O3?

  - a


Adam Megacz <gcj@lists.megacz.com> writes:
> Correction: this problem happens when targeting Linux as well.
> 
>   - a
> 
> Adam Megacz <gcj@lists.megacz.com> writes:
> > This problem only occurs when targeting mingw (targeting linux does
> > not cause the error).
> > 
> >   - a
> > 
> > 
> > Adam Megacz <gcj@lists.megacz.com> writes:
> > > I've tarred up the source tree that produces this error at
> > > 
> > >    http://www.megacz.com/xwt.tgz
> > > 
> > > Unpack it, change to the xwt/ directory, and issue this command:
> > > 
> > > /usr/local/gcc/bin/i686-pc-mingw32-gcj \
> > >           -fCLASSPATH=/usr/local/gcc/share/libgcj.jar:src/ \
> > >           -O9 -g -Isrc/ -c src/org/xwt/Box.java -o Box.o 
> > > src/org/xwt/Box.java:775: internal compiler error: Internal compiler error in emit_move_insn, at expr.c:2925
> > > Please submit a full bug report,
> > > with preprocessed source if appropriate.
> > > See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> > > 
> > > The problem does not occur with -O0.
> > > 
> > > The line in question (775) is a call to a private, tiny method which
> > > should be getting inlined...
> > > 
> > >   - a
> > > 
> > > -- 
> > > "Cassette tapes are killing the music industry" -- RIAA spokesperson, 1978
> > > 
> > 
> > -- 
> > "Cassette tapes are killing the music industry" -- RIAA spokesperson, 1978
> > 
> 
> -- 
> "Cassette tapes are killing the music industry" -- RIAA spokesperson, 1978
> 

-- 
"Cassette tapes are killing the music industry" -- RIAA spokesperson, 1978