2017-07-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80620
	PR tree-optimization/81403
	* tree-ssa-pre.c (phi_translate_1): Clear range and points-to
	info when re-using a VN table entry.

	* gcc.dg/torture/pr80620.c: New testcase.
	* gcc.dg/torture/pr81403.c: Likewise.

From-SVN: r250297