This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Put scope blocks on a diet


On Nov 29, 2007 3:06 AM, Alexandre Oliva <aoliva@redhat.com> wrote:
>
> > But yes, less divergence in the dumps would be nice, and you can
> > produce that with simple scripts that rip out UIDs of temporaries.
>
> This doesn't help you locate the divergencies where they matter,
> because you've thrown away the baby along with the bathtub water.  The
> divergencies are precisely where the differences in generated code
> have come from, in several of the cases I've debugged over the past
> couple of months in the VTA branch.

Heh - but I claim differences in UIDs shouldn't change generated code ;)
Which unfortunately isn't true at the moment which makes your patch
necessary to preserve the -g/-g0 invariance unless we come up with
a (complete) fix for the UID problem.

I don't like it, but that doesn't change the fact (unfortunately).

Richard.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]