Re: [RFA] unexpected multiple location for breakpoint

[Joel Brobecker <brobecker at adacore dot com>]

> > I worry about the effect at -O0. It is common to see the same source
> > line being split across the code.  For instance, with conditional
> > loops, the condition evaluation is often placed at the end of the
> > loop, and its code is associated to the initial line.
> 
> Are you saying that GCC does that under -O0?  I'd be surprised.  But I
> realize that it does that for higher optimization levels.  Still, my
> question is how would it be worse to have the inferior stop several
> times through the loop than not stop at all?

Actually, it does, even at -O0. I don't think it's unreasonable.
I don't think we are worse, but the reason why I bring it up is because
it's a definite departure from what we've been trying to do so far
(minimize the number of breakpoint locations). In fact, the patch
that triggered this discussion was trying to go one step further.
So, I'm just wondering if there might be some issues that I am not
taking into consideration.

I'm willing to make that change, but this is going to require general
consent among the maintainers (and I'm not looking forward to all
the mods in the testsuite to adjust it :-/).

-- 
Joel