GCC build failure, HEAD@173373 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 173373 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 173372.

Log information for changes since the last build:
------------------------------------------------------------------------
r173373 | rsandifo | 2011-05-04 06:09:26 -0700 (Wed, 04 May 2011) | 4 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/tree-vect-loop.c

gcc/
	* tree-vect-loop.c (vectorizable_reduction): Check reduction cost
	before setting STMT_VINFO_TYPE.

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

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

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 map.o
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 t-rtl.o
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 -forest.o
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 t.o
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 w.o
/home/regress/tbox/svn-gcc/gcc/explow.c: In function 'promote_mode':
/home/regress/tbox/svn-gcc/gcc/explow.c:815:3: error: ISO C90 forbids mixed declarations and code [-Werror=edantic]
cc1: all warnings being treated as errors

make[3]: *** [explow.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm gcj-dbtool.pod jcf-dump.pod jv-convert.pod grmic.pod gcov.pod gcj.pod gc-analyze.pod gfdl.pod cpp.pod gij.pod gfortran.pod fsf-funding.pod gcc.pod
make[3]: Leaving directory `/home/regress/tbox/native/build/gcc'
make[2]: *** [all-stage2-gcc] Error 2
make[2]: Leaving directory `/home/regress/tbox/native/build'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/home/regress/tbox/native/build'
make: *** [bootstrap] Error 2
+ '[' -s .bad_compare ']'
+ exit 1
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-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)