Import GCC 4.2.0 PRs

Richard Guenther richard.guenther@gmail.com
Tue Mar 13 12:37:00 GMT 2007


On 3/12/07, Daniel Berlin <dberlin@dberlin.org> wrote:
> On 3/12/07, Mark Mitchell <mark@codesourcery.com> wrote:
> > Here are some GCC 4.2.0 P1s which I think it would be good for GCC to
> > have resolved before the release, together with names of people I'd like
> > to volunteer to help.  (Naturally, I have no command authority, and I'd
> > encourage anyone else who wants to help to pitch in, but I'm trying to
> > tap a few likely suspects.)
>
> >
> > * PR 29585 (Berlin) -- This is a crash in alias analysis with anonymous
> > namespaces.  I can't imagine that anonymous namespaces have any deep
> > implications for aliasing, so I would hope this is an easy fix.
>
> The bug report says that part is fixed, and only a ccp issue remains.
> "The testcase in comment #2 works for me on the 4.2 branch now, but the one in
> comment #7 fails with ... in tree-ssa-ccp.c"

Yes, this is a similar issue as PR30840 on the mainline, the CCP propagator goes
up the lattice in some cases.  This is something Diego promised me to look at ;)
But we might be able to paper over this issue in 4.2 ...

Richard.



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