[Bug bootstrap/21556] New: [4.1 Regression] ia64-hpux bootstrap fails

["jsm28 at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The patch

2005-05-11  Richard Henderson  <rth@redhat.com>

        PR target/21412
        * config/ia64/ia64.c (TARGET_CANNOT_FORCE_CONST_MEM): New.
        (ia64_cannot_force_const_mem): New.
        [...]

causes mainline bootstrap to fail on ia64-hpux.  The failure is when building
libgcc with the stage2 compiler, i.e. in what follows ./xgcc is the stage2
compiler built with the stage1 compiler so it seems the stage1 compiler is
miscompiling the stage2 compiler.

./xgcc -B./
-B/scratch/gcc/nightly-2005-05-13-mainline/ia64-hp-hpux11.23/build_gcc/install/ia64-hp-hpux11.23/bin/
-isystem
/scratch/gcc/nightly-2005-05-13-mainline/ia64-hp-hpux11.23/build_gcc/install/ia64-hp-hpux11.23/include
-isystem
/scratch/gcc/nightly-2005-05-13-mainline/ia64-hp-hpux11.23/build_gcc/install/ia64-hp-hpux11.23/sys-include
-L/scratch/gcc/nightly-2005-05-13-mainline/ia64-hp-hpux11.23/build_gcc/build/gcc-mainline-2005-05-13-nightly-ia64-hp-hpux11.23-ia64-hp-hpux11.23/gcc/../ld
-O2  -DIN_GCC    -DUSE_LIBUNWIND_EXCEPTIONS -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include   -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I.
-I. -I/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc
-I/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/.
-I/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/../include
-I/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/../libcpp/include
 -DL_ffsdi2 -fvisibility=hidden -DHIDE_EXPORTS -c
/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/libgcc2.c
-o libgcc/./_ffsdi2.o
/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/libgcc2.c:
In function '__ffsdi2':
/home/gcc/nightlies/src-mainline-2005-05-13/gcc-mainline-2005-05-13/gcc/libgcc2.c:485:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [libgcc/./_ffssi2.o] Error 1

-- 
           Summary: [4.1 Regression] ia64-hpux bootstrap fails
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jsm28 at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,rth at gcc dot gnu dot
                    org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21556