tree-ssa-dse.c (dse_optimize_stmt): Correctly handle PHI nodes which represent a use and definition of the same...


	* tree-ssa-dse.c (dse_optimize_stmt): Correctly handle PHI nodes which
	represent a use and definition of the same SSA_NAME.

	* gcc.dg/tree-ssa/ssa-dse-8.c: New test.

From-SVN: r108630