re PR middle-end/49806 (FAIL: gcc.dg/tree-ssa/vrp47.c)

2011-08-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/49806
	* tree-vrp.c (op_with_boolean_value_range_p): New function.
	(simplify_truth_ops_using_ranges): Simplify.  Allow inserting
	a new statement for a final conversion to bool.

From-SVN: r177392