tree-optimize.c (init_tree_optimization_passes): Run pass_late_warn_uninitialized before the last DCE run.


	tree-optimization/18501
	* tree-optimize.c (init_tree_optimization_passes): Run
	pass_late_warn_uninitialized before the last DCE run.


testsuite/ChangeLog:

	* gcc.dg/pr18501.c: New test.
	* gcc.dg/uninit-5.c: XFAIL.
	* gcc.dg/uninit-9.c: XFAIL.

From-SVN: r92337