Make dominated_by_p and get_immediate_dominator inline

[Steven Bosscher]

On Tue, Jun 22, 2010 at 8:36 PM, Jan Hubicka <hubicka@ucw.cz> wrote:
> Hi,
> this is change I forgot in my tree for a while.  get_immediate_dominator and
> dominated_by_p are one of most frequently called functions and they are good
> candidates for inlining. Dominated_by_p has fallback path calling et_forest
> code.  Most of passes don't use dynamic dominance info and thus we never get
> there.  I was thinking about making specific version for non-dynamic dominators,
> but since the most common calls from dominated_by_p comes from cfg.c
> (dominance frontiers computation) that is sort of generic, it would
> require more bookkeping of when info is dynamic and when not.
> Hopefully the cold path is not going to cause too much of trouble.
>
> The patch needs to include et-forest.h in basic-block.h, but I do not see
> much way around.

Do not make this inline?

I think making all these small functions inline makes things only more
entangled. Now you include et-forest.h in every place that includes
basic-block.h. I see no point in continuing my little project of
removing #include's if you plan to add more of these.

I would much rather *remove* inline functions and let WHOPR do its job!

Ciao!
Steven