GCC build failure, HEAD@158898 on native

[regress]

With your recent patch, GCC HEAD revision 158898 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 158897.

Log information for changes since the last build:
------------------------------------------------------------------------
r158898 | bernds | 2010-04-29 04:04:30 -0700 (Thu, 29 Apr 2010) | 5 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/ifcvt.c

	From Dominique d'Humieres <dominiq@lps.ens.fr>
	PR bootstrap/43858
	* ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
	test_set.

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

For more information, see <http://gcc.gnu.org/regtest/HEAD/>.

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echo timestamp > s-iov
/Users/regress/tbox/native/build/./prev-gcc/xgcc -B/Users/regress/tbox/native/build/./prev-gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include    -c  -g -O2 -mdynamic-no-pic -gtoggle -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common  -DHAVE_CONFIG_H -I. -I. -I/Users/regress/tbox/svn-gcc/gcc -I/Users/regress/tbox/svn-gcc/gcc/. -I/Users/regress/tbox/svn-gcc/gcc/../include -I./../intl -I/Users/regress/tbox/svn-gcc/gcc/../libcpp/include  -I/Users/regress/tbox/svn-gcc/gcc/../libdecnumber -I/Users/regress/tbox/svn-gcc/gcc/../libdec
 number/dpd -I../libdecnumber     /Users/regress/tbox/svn-gcc/gcc/c-lang.c -o c-lang.o
/Users/regress/tbox/native/build/./prev-gcc/xgcc -B/Users/regress/tbox/native/build/./prev-gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include    -c  -g -O2 -mdynamic-no-pic -gtoggle -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common  -DHAVE_CONFIG_H -I. -I. -I/Users/regress/tbox/svn-gcc/gcc -I/Users/regress/tbox/svn-gcc/gcc/. -I/Users/regress/tbox/svn-gcc/gcc/../include -I./../intl -I/Users/regress/tbox/svn-gcc/gcc/../libcpp/include  -I/Users/regress/tbox/svn-gcc/gcc/../libdecnumber -I/Users/regress/tbox/svn-gcc/gcc/../libdec
 number/dpd -I../libdecnumber     /Users/regress/tbox/svn-gcc/gcc/stub-objc.c -o stub-objc.o
/Users/regress/tbox/native/build/./prev-gcc/xgcc -B/Users/regress/tbox/native/build/./prev-gcc/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/bin/ -B/Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/lib/ -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/include -isystem /Users/regress/tbox/objs/powerpc-apple-darwin9.8.0/sys-include    -c  -g -O2 -mdynamic-no-pic -gtoggle -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common  -DHAVE_CONFIG_H -I. -I. -I/Users/regress/tbox/svn-gcc/gcc -I/Users/regress/tbox/svn-gcc/gcc/. -I/Users/regress/tbox/svn-gcc/gcc/../include -I./../intl -I/Users/regress/tbox/svn-gcc/gcc/../libcpp/include  -I/Users/regress/tbox/svn-gcc/gcc/../libdecnumber -I/Users/regress/tbox/svn-gcc/gcc/../libdec
 number/dpd -I../libdecnumber     /Users/regress/tbox/svn-gcc/gcc/attribs.c -o attribs.o
In file included from /Users/regress/tbox/svn-gcc/gcc/attribs.c:37:0:
/Users/regress/tbox/svn-gcc/gcc/plugin.h: In function 'invoke_plugin_callbacks':
/Users/regress/tbox/svn-gcc/gcc/plugin.h:47:30: error: unused parameter 'event' [-Werror=unused-parameter]
/Users/regress/tbox/svn-gcc/gcc/plugin.h:47:43: error: unused parameter 'gcc_data' [-Werror=unused-parameter]
cc1: all warnings being treated as errors

make[3]: *** [attribs.o] Error 1
make[3]: *** Waiting for unfinished jobs....
/bin/sh /Users/regress/tbox/svn-gcc/gcc/../move-if-change tmp-automata.c insn-automata.c
echo timestamp > s-automata
rm gcj-dbtool.pod jcf-dump.pod jv-convert.pod gcj.pod gc-analyze.pod gfdl.pod cpp.pod gij.pod gcc.pod gcov.pod gfortran.pod fsf-funding.pod grmic.pod
make[2]: *** [all-stage2-gcc] Error 2
make[1]: *** [stage2-bubble] Error 2
make: *** [bootstrap] Error 2
+ '[' -s .bad_compare ']'
+ exit 1
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-- 
Geoffrey Keating <geoffk@apple.com> 
(via an automated GCC regression-testing script.)