GCC build failure, HEAD@154123 on native

[GCC regression tester <regress at geoffk dot org>]

With your recent patch, GCC HEAD revision 154123 had problems on:
native: build (about the same as the previous build)
Attached is build output for those targets.
The previous build was of revision 154122.

Log information for changes since the last build:
------------------------------------------------------------------------
r154123 | bernds | 2009-11-12 10:12:09 -0800 (Thu, 12 Nov 2009) | 18 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/regrename.c

	PR rtl-opt/38582
	* regrename.c (struct du_head): New structure; some elements moved
	from...
	(struct du_chain): ... this one.
	(open_chains, closed_chains): Now of type struct du_head *.
	(do_replace): Accept du_head argument, not du_chain.  All callers
	changed.  Modified code to match new data structures.
	(build_def_use): Return a list of du_head structures.  Modified code
	to match new data structures.
	(dump_def_use_chain): Accept du_head argument, not du_chain.  All
	callers changed.  Modified code to match new data structures.
	(merge_overlapping_regs): Accept du_head argument, not du_chain.  All
	callers changed.  Modified code to match new data structures.
	(scan_rtx_reg): Change type of this_regno and this_nregs to unsigned.
	Allocate a du_head structure as well as a du_chain when creating a
	new chain.  Modified other code to match new data structures.


------------------------------------------------------------------------

For more information, see <http://glutton.geoffk.org/HEAD/>.

Attachment: native-log.txt
Description: Text document

-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)