2013-11-07  Richard Biener  <rguenther@suse.de>

	* tree-ssa-ccp.c (canonicalize_float_value): Rename to ...
	(canonicalize_value): ... this.  Also handle stripping of
	TREE_OVERFLOW.
	(get_value, set_lattice_value, get_value_for_expr): Adjust.
	* gimple-fold.c (canonicalize_constructor_val): Strip
	TREE_OVERFLOW.
	* tree-ssa-threadedge.c (set_ssa_name_value): Likewise.

From-SVN: r204506