[Bug c++/65017] valgrind error in get_constraint_for_address_of

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65017

Richard Biener <rguenth at gcc dot gnu.org> changed:

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--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to rguenther@suse.de from comment #4)
> On Wed, 11 Feb 2015, dcb314 at hotmail dot com wrote:
> 
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65017
> > 
> > --- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
> > (In reply to Richard Biener from comment #2)
> > > I can't reproduce this - how did you compile/configure GCC?  Just tried both
> > > --enable-checking and --enable-checking=release builds.
> > 
> > ../src/trunk/configure --prefix=/home/dcb/gcc/results \
> >     --disable-bootstrap \
> >     --disable-werror \
> >     --enable-checking=yes \
> >     --enable-languages=c,c++,fortran \
> >     CC="clang -fheinous-gnu-extensions" \
> >     CXX="clang++ -fheinous-gnu-extensions"
> > 
> > on AMD Phenom.
> 
> Uh, so it might be very well clang miscompiling it.  I don't have
> clang to reproduce, so can you get me some more information,
> like
> 
> (gdb) p debug_tree (t)
> 
> at the point it barfs?  Can you disable optimization of clang?
> Thus build with CFLAGS="-g -O0" CXXFLAGS="-g -O0"?

Can't reproduce when building GCC with clang 3.3 like you specified above.