On Wed, Jun 12, 2013 at 09:42:55AM -0600, Jeff Law wrote:
> On 06/12/13 02:03, Richard Biener wrote:
> >DSE looks like the right place to me as we are removing a store. Yes,
> >DCE removes a limited set of stores as well, but the way we remove this kind
> >of store makes it much more suited to DSE.
> >
> >As of possibly trapping/throwing stores, we do not bother to preserve those
> >(even with -fnon-call-exceptions).
> A bit of a surprise to hear that. I don't mind much though, as
> -fnon-call-exceptions isn't something I find terribly useful.
Well, a segfault accessing invalid pointer is undefined behavior, so it is
fine to optimize it away.
Jakub
