r142962 - in /trunk/gcc: ChangeLog testsuite/g+...

[bonzini@gcc.gnu.org]

Author: bonzini
Date: Tue Dec 30 10:36:39 2008
New Revision: 142962

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142962
Log:
2008-12-30  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/38572
	* tree-vrp.c (vrp_visit_phi_node): Look out for invalid ranges
	and change them to VARYING.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr38572.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vrp.c