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
