PR tree-optimization/26796

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
        need EH edge cleanups rather than purging them immediately.
        (eliminate_degenerate_phis): Handle queued EH cleanups.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112453 138bc75d-0d04-0410-961f-82ee72b054a4