GCC build failure, HEAD@177212 on native

[GCC regression tester]

With your recent patch, GCC HEAD revision 177212 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 177211.

Log information for changes since the last build:
------------------------------------------------------------------------
r177212 | paolo | 2011-08-02 13:26:57 -0700 (Tue, 02 Aug 2011) | 8 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/fold-const.c
   M /trunk/gcc/tree-ssa-loop-prefetch.c
   M /trunk/gcc/tree-ssa-math-opts.c

2011-08-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR bootstrap/49914
	* fold-const.c (fold_plusminus_mult_expr): Use abs_hwi instead
	of abs.
	* tree-ssa-math-opts.c (gimple_expand_builtin_pow): Likewise.
	* tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Likewise.

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

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

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	    -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
	    < /home/regress/tbox/svn-gcc/libstdc++-v3/../gcc/gthr-posix.h > i686-pc-linux-gnu/bits/gthr-posix.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
	    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
	    -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
	    -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
	    < /home/regress/tbox/svn-gcc/libstdc++-v3/../gcc/gthr-tpf.h > i686-pc-linux-gnu/bits/gthr-tpf.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
	    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
	    -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
	    -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
	    -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
	    < /home/regress/tbox/svn-gcc/libstdc++-v3/../gcc/gthr-posix.h > i686-pc-linux-gnu/bits/gthr-default.h
make[3]: Leaving directory `/home/regress/tbox/native/build/i686-pc-linux-gnu/libstdc++-v3/include'
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
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-- 
Geoffrey Keating <geoffk@geoffk.org> 
(via an automated GCC regression-testing script.)