2015-08-13  Richard Biener  <rguenther@suse.de>

	* tree.c (nonnull_arg_p): Move from ...
	* tree-vrp.c (nonnull_arg_p): ... here.
	* tree.h (nonnull_arg_p): Declare.
	* tree-ssa-sccvn.c (init_scc_vn): Perform all lattice init
	here, register ptr != 0 for nonnull_arg_p pointer arguments.
	Properly initialize static chain and by-reference result pointer.
	(run_scc_vn): Adjust.

From-SVN: r226861