GCC build failure, HEAD@196612 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 196612 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 196611.

Log information for changes since the last build:
------------------------------------------------------------------------
r196612 | hubicka | 2013-03-12 05:13:33 -0700 (Tue, 12 Mar 2013) | 9 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/emit-rtl.c
   M /trunk/gcc/rtl.c
   M /trunk/gcc/testsuite/ChangeLog
   A /trunk/gcc/testsuite/gcc.c-torture/compile/pr56571.c
   M /trunk/gcc/valtrack.c

	PR middle-end/56571
	* valtrack.c (cleanup_auto_inc_dec): Unshare clobbers originating
	from pseudos.
	* emit-rtl.c (verify_rtx_sharing): Likewise.
	(copy_insn_1): Likewise.
	* rtl.c (copy_rtx): Likewise.
	PR middle-end/56571
	* gcc.c-torture/compile/pr56571.c: New testcase.

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

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

-------------- next part --------------
		mv -f doc/cpp.1.T$$ doc/cpp.1) || \
		(rm -f doc/cpp.1.T$$ && exit 1)
perl /home/regress/tbox/svn-gcc/gcc/../contrib/texi2pod.pl /home/regress/tbox/svn-gcc/gcc/doc/invoke.texi > gcc.pod
echo timestamp > doc/gfdl.7
(pod2man --center="GNU" --release="gcc-4.8.0" --date=2013-03-12 --section=7 gfdl.pod > doc/gfdl.7.T$$ && \
		mv -f doc/gfdl.7.T$$ doc/gfdl.7) || \
		(rm -f doc/gfdl.7.T$$ && exit 1)
makeinfo: Removing output file `doc/gcc.info' due to errors; use --force to preserve.
make[3]: *** [doc/gcc.info] Error 1
make[3]: *** Waiting for unfinished jobs....
Use of uninitialized value in string eq at /home/regress/tbox/svn-gcc/gcc/../contrib/texi2pod.pl line 315, <GEN0> line 11652.
rm gcov.pod gfdl.pod cpp.pod fsf-funding.pod gcc.pod
make[3]: Leaving directory `/home/regress/tbox/native/build/gcc'
make[2]: *** [all-stage1-gcc] Error 2
make[2]: Leaving directory `/home/regress/tbox/native/build'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/home/regress/tbox/native/build'
make: *** [bootstrap] Error 2
+ '[' -s .bad_compare ']'
+ exit 1
-------------- next part --------------

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