[Bug bootstrap/12609] New: Tru64 UNIX V5.1B bootstrap failure: ICE in config/alpha/alpha.c (function_value)

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12609

           Summary: Tru64 UNIX V5.1B bootstrap failure: ICE in
                    config/alpha/alpha.c (function_value)
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alpha-dec-osf5.1b
  GCC host triplet: alpha-dec-osf5.1b
GCC target triplet: alpha-dec-osf5.1b

Bootstrap fails on Tru64 UNIX V5.1B building libgcc:

./xgcc -B./ -B/vol/gcc/share/alpha-dec-osf5.1b/bin/ -isystem /vol/gcc/share/alpha-dec-osf5.1b/include -isystem /vol/gcc/share/alpha-dec-osf5.1b/sys-include -L/vol/gcc/obj/gcc-3.4-20031014/5.1b-gcc/gcc/../ld -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -pthread -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I -I/vol/gnu/src/gcc/gcc-dist-current/gcc -I/vol/gnu/src/gcc/gcc-dist-current/gcc/ -I/vol/gnu/src/gcc/gcc-dist-current/gcc/../include   -DL_fixunstfdi -c /vol/gnu/src/gcc/gcc-dist-current/gcc/libgcc2.c -o libgcc/./_fixunstfdi.o
/vol/gnu/src/gcc/gcc-dist-current/gcc/libgcc2.c: In function `__fixunstfti':

/vol/gnu/src/gcc/gcc-dist-current/gcc/libgcc2.c:1174: internal compiler error: in function_value, at config/alpha/alpha.c:6048

Environment:
System: OSF1 bartok V5.1 2650 alpha
Machine: alpha
	
host: alpha-dec-osf5.1b
build: alpha-dec-osf5.1b
target: alpha-dec-osf5.1b
configured with: /vol/gnu/src/gcc/gcc-dist-current/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls alpha-dec-osf5.1b

How-To-Repeat:
The error exists even when running ./cc1 libgcc2.i