re PR tree-optimization/59245 (ICE on valid code at -O3 on x86_64-linux-gnu in set_va...

re PR tree-optimization/59245 (ICE on valid code at -O3 on x86_64-linux-gnu in set_value_range, at tree-vrp.c:443)

2013-11-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/59245
	* tree-vrp.c (set_value_range): Assert that we don't have
	overflowed constants (but our infinities).
	(set_value_range_to_value): Drop all overflow flags.
	(vrp_visit_phi_node): Likewise.
	(vrp_visit_assignment_or_call): Use set_value_range_to_value
	to set a constant range.

	* gcc.dg/torture/pr59245.c: New testcase.

From-SVN: r205395