re PR tree-optimization/39764 (ICE in set_lattice_value, at tree-ssa-ccp.c:468 with -ffinite-math-only)

2009-04-15  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/39764
	* tree-ssa-ccp.c (get_value): Canonicalize value with
	canonicalize_float_value.

	* g++.dg/torture/pr39764.C: New testcase.

From-SVN: r146120