Gimplification and simplification

[S. Bosscher]

Diego Novillo wrote:
> > These may get constructed at gimplfication time via simplfying builtins.
> > Like if (strlen("")).  We end up not folding this to constant at all.
> > 
> This is not produced by CCP or DOM?  The call to fold_stmt() typically
> takes care of these cases.  I had started adding hooks into CCP to deal
> with some builtins.  That may be a good place to start looking.

What are you hunting for with this builtin work?
Some of the string builtins are already fixed by Honza's
earlier strrchr()-patch already seems to fix a bunch of
string builtins.

> Or is this coming directly from the gimplifier?

Gimplifier.

Gr.
Steven