Re: Is there really only one symbol_ref object referring to eachsymbolic label?

[Kazu Hirata <kazu at cs dot umass dot edu>]

Hi Zack,

> >> ggc_strdup is a macro wrapper for ggc_alloc_string, and
> >> ggc_alloc_string does NOT guarantee the uniqueness of the strings it
> >> returns.  (However, I consider this a bug in ggc_alloc_string, not in
> >> its callers.  At one time ggc_alloc_string did uniquize strings - I
> >> don't know when that got changed or why.)
> >
> > I was just playing with ggc_alloc_string and noticed the same.  When
> > gcc was put into cvs, ggc_alloc_string was in ggc-page.c and looked
> > like so.  I haven't found any trail of uniquization.
> 
> Check the earliest revisions of stringpool.c.

I see.

> > Should we start using htab_*?
> 
> No, it should use hashtable.c.

OK.

Kazu Hirata