* loop.c (loop_dump_aux): Do not print RTL when not available.

	* tree-ssa-loop-ivopts.c (add_standard_iv_candidates): Do not use
	frontend specific type nodes.
	(produce_memory_decl_rtl): Break out from ...
	(prepare_decl_rtl): ... here.  Handle ADDR_EXPR correctly.
	(get_computation_at): Avoid random tree sharing.
	(tree_ssa_iv_optimize): Verify tree sharing; dump loops.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87123 138bc75d-0d04-0410-961f-82ee72b054a4