r193047 - in /trunk/gcc: ChangeLog basic-block....

[steven@gcc.gnu.org]

Author: steven
Date: Wed Oct 31 21:37:10 2012
New Revision: 193047

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193047
Log:
gcc/
	PR tree-optimization/55018
	* basic-block.h (dfs_find_deadend): New prototype.
	* cfganal.c (dfs_find_deadend): No longer static.  Use bitmap
	instead of sbitmap for visited.
	(flow_dfs_compute_reverse_execute): Use dfs_find_deadend here, too.
	* dominance.c (calc_dfs_tree): If saw_unconnected,
	traverse from dfs_find_deadend of unconnected b
	instead of b directly.

testsuite/
	PR tree-optimization/55018
	* gcc.dg/torture/pr55018.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr55018.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/basic-block.h
    trunk/gcc/cfganal.c
    trunk/gcc/dominance.c
    trunk/gcc/testsuite/ChangeLog