On Tue, Sep 14, 2010 at 5:36 PM, Sebastian Pop <seb...@gmail.com> wrote:
> On Tue, Sep 14, 2010 at 10:19, Paulo J. Matos <pocma...@gmail.com> wrote:
>> How can I automatically update dominators? Or do I have to do it for
>> each new basic_block I create with recompute_dominator?
>
> /* Free and compute again all the dominators information. */
>
> static inline void
> recompute_all_dominators (void)
> {
> mark_irreducible_loops ();
> free_dominance_info (CDI_DOMINATORS);
> free_dominance_info (CDI_POST_DOMINATORS);
> calculate_dominance_info (CDI_DOMINATORS);
> calculate_dominance_info (CDI_POST_DOMINATORS);
> }
Just free them. All following users are required to eventually
compute them anyway. Thus,
free_dominance_info (CDI_DOMINATORS);
if you didn't compute post-dominators they shouldn't be available.
Richard.
