How early are COND_EXEC patterns created?

[Joern Rennecke]

> > I assumed that it made more sense under the heading of:
> > 
> > /* ----------------------------------------------------------------------
> >    Top level constituents of INSN, JUMP_INSN and CALL_INSN.
> >    ---------------------------------------------------------------------- */
> 
> Oh, ok.

So any CLOBBER or USE would go inside the COND_EXEC?

Has all code that assumes that PARALLEL is a top-level construct been updated?