* tree-ssa-copyrename.c (copy_rename_partition_coalesce):

	Check for arificial variables, not is_gimple_tmp_var.
	* tree-ssa-live.c (var_union): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86057 138bc75d-0d04-0410-961f-82ee72b054a4