r208222 - in /trunk/gcc: ChangeLog tree-cfgclea...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Feb 28 13:14:23 2014
New Revision: 208222

URL: http://gcc.gnu.org/viewcvs?rev=208222&root=gcc&view=rev
Log:
2014-02-28  Richard Biener  <rguenther@suse.de>

	PR target/60280
	* tree-cfgcleanup.c (tree_forwarder_block_p): Restrict
	previous fix and only allow to remove trivial pre-headers
	and latches.  Also honor LOOPS_MAY_HAVE_MULTIPLE_LATCHES.
	(remove_forwarder_block): Properly update the latch of
	a loop.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-cfgcleanup.c