re PR tree-optimization/32220 (internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1937)

	PR tree-optimization/32220
	* tree-predcom.c (eliminate_temp_copies): Handle the case that loop
	phi node is reached before defining statement.

	* gfortran.dg/predcom-2.f: New testcase.

From-SVN: r125531