http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50928
Ralf Corsepius <corsepiu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |corsepiu at gcc dot gnu.org Known to work| |4.7.2 Known to fail| |4.8.0 --- Comment #4 from Ralf Corsepius <corsepiu at gcc dot gnu.org> 2013-03-26 08:30:02 UTC --- This bug had vanished with gcc-4.7.2, but has returned with gcc-4.8.0: /builddir/build/BUILD/rtems-4.11-m32c-rtems4.11-gcc-4.8.0/build/./gcc/xgcc -B/builddir/build/BUILD/rtems-4.11-m32c-rtems4.11-gcc-4.8.0/build/./gcc/ -nostdinc -B/builddir/build/BUILD/rtems-4.11-m32c-rtems4.11-gcc-4.8.0/build/m32c-rtems4.11/newlib/ -isystem /builddir/build/BUILD/rtems-4.11-m32c-rtems4.11-gcc-4.8.0/build/m32c-rtems4.11/newlib/targ-include -isystem /builddir/build/BUILD/rtems-4.11-m32c-rtems4.11-gcc-4.8.0/gcc-4.8.0/newlib/libc/include -B/opt/rtems-4.11/m32c-rtems4.11/bin/ -B/opt/rtems-4.11/m32c-rtems4.11/lib/ -isystem /opt/rtems-4.11/m32c-rtems4.11/include -isystem /opt/rtems-4.11/m32c-rtems4.11/sys-include -g -O2 -mcpu=m32cm -O2 -I../../../../gcc-4.8.0/libgcc/../newlib/libc/sys/rtems/include -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc -I. -I. -I../../.././gcc -I../../../../gcc-4.8.0/libgcc -I../../../../gcc-4.8.0/libgcc/. -I../../../../gcc-4.8.0/libgcc/../gcc -I../../../../gcc-4.8.0/libgcc/../include -DHAVE_CC_TLS -DUSE_EMUTLS -o _ffsdi2.o -MT _ffsdi2.o -MD -MP -MF _ffsdi2.dep -DL_ffsdi2 -c ../../../../gcc-4.8.0/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS ../../../../gcc-4.8.0/libgcc/libgcc2.c: In function '__ffssi2': ../../../../gcc-4.8.0/libgcc/libgcc2.c:522:1: error: unable to find a register to spill in class 'A_REGS' } ^ ../../../../gcc-4.8.0/libgcc/libgcc2.c:522:1: error: this is the insn: (insn 58 56 59 10 (set (reg:HI 0 r0 [orig:26 D.2817 ] [26]) (zero_extend:HI (mem/u/j:QI (plus:PSI (subreg:PSI (reg:SI 44 [ D.2818 ]) 0) (symbol_ref:PSI ("__clz_tab") [flags 0x40] <var_decl 0x7f55b9a14ab0 __clz_tab>)) [0 __clz_tab S1 A8]))) ../../../../gcc-4.8.0/libgcc/libgcc2.c:520 115 {zero_extendqihi2} (expr_list:REG_DEAD (reg:SI 44 [ D.2818 ]) (nil))) ../../../../gcc-4.8.0/libgcc/libgcc2.c:522: confused by earlier errors, bailing out