COND_EXPR lowering patch

[Andrew MacLeod]

On Mon, 2003-08-25 at 11:33, law@redhat.com wrote:
> In message <20030823175250.GA21952@atrey.karlin.mff.cuni.cz>, Zdenek Dvorak wri
> tes:

> Marginally related, I'm pretty sure DSE will need the post-dominators
> to do a good job.  It may make sense to have DCE/DSE share the cost
> of building the post-dominator information.
> 
I would actually like to see it associated with the CFG... so thats its
available to anyone, once built, until its gets invalidated by CFG
manipulations... then it gets rebuilt if someone needs it.  It always
struck me as a data structure that oughta be tightly linked to the
CFG....

Andrew