r149289 - in /trunk/gcc: ChangeLog tree-pretty-...

[dnovillo@gcc.gnu.org]

Author: dnovillo
Date: Mon Jul  6 17:04:34 2009
New Revision: 149289

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149289
Log:

	* tree-pretty-print.c (dump_generic_node): Protect
	against NULL op0.
	(debug_tree_chain): Handle cycles.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-pretty-print.c