On an i686-pc-linux-gnu host, I configure GCC 4.3 (revision 120287) like this: ../../src/gcc/configure --enable-sim --with-newlib --disable-nls --enable-e500_double --prefix=${HOME} --enable-checking=yes,rtl --disable-threads --disable-shared --without-long-double-128 --target=powerpc-unknown-eabispe
(I also tried --with-long-double-128 as well as not specifying this option at all with the same result.) The build fails compiling libgcc/__powitf2.o: /home/rask/build/gcc-ppc/./gcc/xgcc -B/home/rask/build/gcc-ppc/./gcc/ -nostdinc -B/home/rask/build/gcc-ppc/powerpc-unknown-eabispe/newlib/ -isystem /home/rask/build/gcc-ppc/powerpc-unknown-eabispe/newlib/targ-include -isystem /home/rask/src/gcc/newlib/libc/include -B/home/rask/powerpc-unknown-eabispe/bin/ -B/home/rask/powerpc-unknown-eabispe/lib/ -isystem /home/rask/powerpc-unknown-eabispe/include -isystem /home/rask/powerpc-unknown-eabispe/sys-include -L/home/rask/build/gcc-ppc/./ld -O2 -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -specs=ldblspecs -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../../src/gcc/gcc -I../../../src/gcc/gcc/. -I../../../src/gcc/gcc/../include -I../../../src/gcc/gcc/../libcpp/include -I../../../src/gcc/gcc/../libdecnumber -I../libdecnumber -DL_powitf2 -c ../../../src/gcc/gcc/libgcc2.c -o libgcc/./_powitf2.o ../../../src/gcc/gcc/libgcc2.c: In function '__powitf2': ../../../src/gcc/gcc/libgcc2.c:1735: internal compiler error: in gen_reg_rtx, at emit-rtl.c:770 This is a regression from GCC 4.1, where GCC built for this target: <URL:http://gcc.gnu.org/ml/gcc-testresults/2005-04/msg01907.html> -- Summary: [regression] Build failure in libgcc2 powitf2 with ICE in gen_reg_rtx Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rask at sygehus dot dk GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: powerpc-unknown-eabispe http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30370