re PR middle-end/69854 (ICE: tree check: expected class 'constant', have 'binary' (plus_expr) in generic_simplify_65, at generic-match.c:3110)

2016-02-18  Richard Biener  <rguenther@suse.de>

	PR middle-end/69854
	* match.pd: Don't use fold_binary or fold_unary for folding
	constants.

	* gcc.dg/torture/pr69854.c: New testcase.

From-SVN: r233516