[PATCH] Re: scheduling vs lexical scopes

[Jakub Jelinek]

On Sun, Dec 30, 2001 at 03:37:09PM +0100, Jan Hubicka wrote:
> > On Sun, Dec 30, 2001 at 12:51:54PM +0100, Jan Hubicka wrote:
> > > > > (but it will cause many fragments to be created)
> > > > 
> > > > I do worry about this, particularly for non-dwarf3 debug targets.
> > > > Not sure what to do about it though.
> > > I was thinking about prunning the regions a bit - recognizing instrucitons
> > > not interesting for symbolic level debugger (those that do not trap nor
> > > access memory nor are just after line number note) and do not create
> > > fragments for these. I guess on riscy machines this should help a bit
> > > as typical reg-reg operation fits this category.
> > 
> > Is reading memory interesting to symbolic level debugger?
> 
> I guess it can have watchpoint on it assuming that the memory is something
> accessible from symbolic level (de-facto all memory?)
> 
> > On the other side, changing a /v pseudo definitely is interesting.
> 
> Can symbolic debugger stop somehow on such instruction? Can I have
> watchpoint on register?

Sure, e.g. using next or step. I doubt you can have watchpoint on a
register, but that doesn't matter.

	Jakub