[tree-ssa] Insert on edge comment

[law@redhat.com]

In message <1055263923.6414.190.camel@p4>, Andrew MacLeod writes:
 >On Tue, 2003-06-10 at 12:42, law@redhat.com wrote:
 >> In message <1055262334.6414.178.camel@p4>, Andrew MacLeod writes:
 >
 >>  >
 >>  >Does that make any sense? It doesnt seem like a lot of work...
 >> I was referring to dropping the nested structure entirely.  Fixing
 >> GOTOs, SWITCHES or any of them piecemeal isn't terribly difficult,
 >> but taken as a whole it gets more complex.
 >>
 >
 >You are still going to need to add a conditional goto/branch of some
 >sort in order to do this tho right?  That seems like the first step.
 >then we can trivially "lower" from containers at an early stage until we
 >just dont generate them any more :-) 
Yup.

 >Or we could simply tackle them right off the bat.... just more work
 >upfront.
Possibly quite a bit.  But as I mentioned, we may have to tackle this
as part of addressing the tree->rtl conversion cleanup.

jeff