2016-05-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71055
	* tree-ssa-sccvn.c (vn_reference_lookup_3): When native-interpreting
	sth with precision not equal to access size verify we don't chop
	off bits.

	* gcc.dg/torture/pr71055.c: New testcase.

From-SVN: r236122