r192689 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Oct 22 13:26:48 2012
New Revision: 192689

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192689
Log:
2012-10-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/55011
	* tree-vrp.c (update_value_range): For invalid lattice transitions
	drop to VARYING.

	* gcc.dg/torture/pr55011.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr55011.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c