2006-05-02  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/27381
	* tree-phinodes.c (remove_phi_arg_num): When moving a phi argument, 
	maintain the same immediate_use links.
	* tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker 
	node rather than segfaulting.

From-SVN: r113499