This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: tree ssa and type issues
On Sat, 2005-05-21 at 18:55 +0200, Andreas Jaeger wrote:
> Gabriel Dos Reis <gdr@integrable-solutions.net> writes:
>
> > Hi again,
> >
> > I just hit this one from tree-ssa-into.c:rewrite_into_ssa()
> >
> > /* Initialize dominance frontier. */
> > dfs = (bitmap *) xmalloc (last_basic_block * sizeof (bitmap *));
> > ^^^^^^^^
> >
> > If the sizeof operand really supposed to be "bitmap*" and not "bitmap"?
>
> This indeed looks wrong - and could lead to real memory corruption
> :-(. If this is wrong, he should be changed on the 4.0 branch as
> well,
It's wrong, but it couldn't lead to actual memory corruption, since
sizeof (bitmap) == sizeof (bitmap *), since both are pointers.