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ICE on GCC mainline for the avr target


Hello,

bootstrap has been broken on mainline for the avr target for
a few weeks.

I'm afraid I'm not qualified to analyze this problem.
Can anyone guess a fix for it?


/usr/local/src/gcc/avr-HEAD-build/gcc/xgcc -B/usr/local/src/gcc/avr-HEAD-build/gcc/ -nostdinc -B/usr/local/src/gcc/avr-HEAD-build/avr/newlib/ -isystem /usr/local/src/gcc/avr-HEAD-build/avr/newlib/targ-include -isystem /usr/local/src/gcc/combined-HEAD/newlib/libc/include -B/usr/local/src/gcc/avr-HEAD-install/avr/bin/ -B/usr/local/src/gcc/avr-HEAD-install/avr/lib/ -isystem /usr/local/src/gcc/avr-HEAD-install/avr/include -isystem /usr/local/src/gcc/avr-HEAD-install/avr/sys-include -L/usr/local/src/gcc/avr-HEAD-build/ld -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -DDF=SF -Dinhibit_libc -mcall-prologues -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../combined-HEAD/gcc -I../../combined-HEAD/gcc/. -I../../combined-HEAD/gcc/../include -I../../combined-HEAD/gcc/../libcpp/include -I../../combined-HEAD/gcc/../libbanshee/libcompat -I../../combined-HEAD/gcc/../libbans
hee -I../../combined-HEAD/gcc/../libbanshee/points-to  -DFINE_GRAINED_LIBRARIES -DL_pack_sf -c fp-bit.c -o libgcc/./_pack_sf.o
fp-bit.c: In function `__pack_f':
fp-bit.c:439: error: unable to find a register to spill in class `BASE_POINTER_REGS'
fp-bit.c:439: error: this is the insn:
(insn 93 230 94 13 fp-bit.c:269 (set (reg/v:SI 28 r28 [orig:43 fraction ] [43])
        (ior:SI (reg:SI 54)
            (reg:SI 4 r4 [55]))) 52 {iorsi3} (nil)
    (expr_list:REG_DEAD (reg:SI 54)
        (expr_list:REG_DEAD (reg:SI 4 r4 [55])
            (nil))))
fp-bit.c:439: internal compiler error: in spill_failure, at reload1.c:1884
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
gmake[2]: *** [libgcc/./_pack_sf.o] Error 1
gmake[2]: Leaving directory `/usr/local/src/gcc/avr-HEAD-build/gcc'
gmake[1]: *** [stmp-multilib] Error 2
gmake[1]: Leaving directory `/usr/local/src/gcc/avr-HEAD-build/gcc'
gmake: *** [all-gcc] Error 2


-- 
  // Bernardo Innocenti - Develer S.r.l., R&D dept.
\X/  http://www.develer.com/


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