Bootstrapping revision 148039 on i686-apple-darwin9 fails with: /opt/gcc/i686-darwin/./prev-gcc/xgcc -B/opt/gcc/i686-darwin/./prev-gcc/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/bin/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/bin/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/lib/ -isystem /opt/gcc/gcc4.5w/i686-apple-darwin9/include -isystem /opt/gcc/gcc4.5w/i686-apple-darwin9/sys-include -c -g -O2 -fomit-frame-pointer -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition -Wc++-compat -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Ijava -I../../gcc-4.5-work/gcc -I../../gcc-4.5-work/gcc/java -I../../gcc-4.5-work/gcc/../include -I./../intl -I../../gcc-4.5-work/gcc/../libcpp/include -I/opt/mpc/build/include -I/sw/include -I../../gcc-4.5-work/gcc/../libdecnumber -I../../gcc-4.5-work/gcc/../libdecnumber/dpd -I../libdecnumber -I/sw/include -I/sw/include -DCLOOG_PPL_BACKEND ../../gcc-4.5-work/gcc/java/win32-host.c -o java/win32-host.o /opt/gcc/i686-darwin/./prev-gcc/xgcc -B/opt/gcc/i686-darwin/./prev-gcc/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/bin/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/bin/ -B/opt/gcc/gcc4.5w/i686-apple-darwin9/lib/ -isystem /opt/gcc/gcc4.5w/i686-apple-darwin9/include -isystem /opt/gcc/gcc4.5w/i686-apple-darwin9/sys-include -c -g -O2 -fomit-frame-pointer -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition -Wc++-compat -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Ijava -I../../gcc-4.5-work/gcc -I../../gcc-4.5-work/gcc/java -I../../gcc-4.5-work/gcc/../include -I./../intl -I../../gcc-4.5-work/gcc/../libcpp/include -I/opt/mpc/build/include -I/sw/include -I../../gcc-4.5-work/gcc/../libdecnumber -I../../gcc-4.5-work/gcc/../libdecnumber/dpd -I../libdecnumber -I/sw/include -I/sw/include -DCLOOG_PPL_BACKEND ../../gcc-4.5-work/gcc/java/jcf-parse.c -o java/jcf-parse.o ../../gcc-4.5-work/gcc/java/verify-impl.c: In function 'get_variable_t': ../../gcc-4.5-work/gcc/java/verify-impl.c:1280: error: unrecognizable insn: (insn 81 80 82 13 ../../gcc-4.5-work/gcc/java/verify-impl.c:1279 (set (mem:SI (plus:SI (reg/f:SI 56 virtual-outgoing-args) (const_int 4 [0x4])) [0 S4 A32]) (plus:SI (reg/f:SI 113) (reg:SI 66 [ D.14606 ]))) -1 (nil)) ../../gcc-4.5-work/gcc/java/verify-impl.c:1280: internal compiler error: in extract_insn, at recog.c:2078
See also "Gcc [trunk revision 148039] failed to boostrap on i686!" at http://gcc.gnu.org/ml/gcc-regression/2009-06/msg00007.html and "NEW GCC build failure, HEAD@148039 on native" at http://gcc.gnu.org/ml/gcc-regression/2009-06/msg00006.html
Revision 148039: http://gcc.gnu.org/ml/gcc-cvs/2009-06/msg00016.html is the cause.
On Linux/ia32, I got /export/gnu/import/svn/gcc-test/bld/./gcc/xgcc -B/export/gnu/import/svn/gcc-test/bld/./gcc/ -B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/ -isystem /usr/local/i686-pc-linux-gnu/include -isystem /usr/local/i686-pc-linux-gnu/sys-include -g -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../.././gcc -I../../../src-trunk/libgcc -I../../../src-trunk/libgcc/. -I../../../src-trunk/libgcc/../gcc -I../../../src-trunk/libgcc/../include -I../../../src-trunk/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o _powitf2.o -MT _powitf2.o -MD -MP -MF _powitf2.dep -DL_powitf2 -c ../../../src-trunk/libgcc/../gcc/libgcc2.c \ -fvisibility=hidden -DHIDE_EXPORTS ../../../src-trunk/libgcc/../gcc/libgcc2.c: In function '__powitf2': ../../../src-trunk/libgcc/../gcc/libgcc2.c:1739: error: unrecognizable insn: (insn 48 47 49 7 ../../../src-trunk/libgcc/../gcc/libgcc2.c:1734 (set (mem:SI (reg/f:SI 56 virtual-outgoing-args) [0 S4 A32]) (plus:SI (reg/f:SI 54 virtual-stack-vars) (const_int -16 [0xfffffff0]))) -1 (nil)) ../../../src-trunk/libgcc/../gcc/libgcc2.c:1739: internal compiler error: in extract_insn, at recog.c:2078 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.
I've reverted the patch that caused the bootstrap failure.