* tree-ssa-loop-im.c (fem_single_reachable_address, for_each_memref):
	New functions.
	(single_reachable_address): Use them.
	(schedule_sm): Add dump.
	(is_call_clobbered_ref): New function.
	(determine_lsm_reg): Check whether the reference is call clobbered.
	Only work for gimple_reg_type values.

From-SVN: r86418