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Re: [tree-ssa]: Inserting on an entry block edge seems to cause a split


> On Sat, Nov 22, 2003 at 11:29:42PM -0500, Daniel Berlin wrote:
> > The problem is that it causes new bb creation during insertion, which 
> > is what we were trying to avoid through critical edge splitting.
> 
> Why is this a problem?  It's not like the existing blocks
> get renumbered...
One ugly thing about current implementation of split block is that it
may create two blocks as result of edge redirection.
This is fixable by slightly smarter behaviour on fallthru edges, but
perhaps we can do it at once with Zdenek's CFG revamp?

Honza
> 
> 
> r~


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