[Bug bootstrap/45162] New: [4.6 regression] ARM bootstrap comparison failures after stage 3

["mikpe at it dot uu dot se" <gcc-bugzilla at gcc dot gnu dot org>]

Attempting to bootstrap gcc-4.6-20100731 (r162788) on armv5tel-linux-gnueabi
fails due to bootstrap comparison failures after stage 3:

make[3]: Leaving directory `/home/mikpe/objdir46'
Comparing stages 2 and 3
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1objplus-checksum.o differs
warning: gcc/cc1obj-checksum.o differs
Bootstrap comparison failure!
gcc/lto-cgraph.o differs
gcc/value-prof.o differs
gcc/tree-vect-data-refs.o differs
gcc/expr.o differs
gcc/tree-ssa-loop-ivopts.o differs
gcc/lto-streamer-out.o differs
gcc/stor-layout.o differs
gcc/tree-ssa-loop-ivcanon.o differs
gcc/loop-iv.o differs
gcc/double-int.o differs
gcc/expmed.o differs
gcc/dbxout.o differs
gcc/tree.o differs
gcc/sreal.o differs
gcc/cfgloopanal.o differs
gcc/explow.o differs
libcpp/expr.o differs
make[2]: *** [compare] Error 1
make[2]: Leaving directory `/home/mikpe/objdir46'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/home/mikpe/objdir46'
make: *** [bootstrap] Error 2

Target: armv5tel-brewer-linux-gnueabi
Configured with: /home/mikpe/gcc-4.6-20100731/configure --enable-bootstrap
--enable-shared --enable-threads=posix --enable-checking=release
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-languages=c,c++,objc,obj-c++,java,fortran --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --disable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--disable-sjlj-exceptions --with-arch=armv5te --with-tune=xscale
--build=armv5tel-brewer-linux-gnueabi
--with-gmp=/home/mikpe/pkgs/linux-armv5l/gmp-4.3.2
--with-mpfr=/home/mikpe/pkgs/linux-armv5l/mpfr-2.4.2
--with-mpc=/home/mikpe/pkgs/linux-armv5l/mpc-0.8.2 --disable-plugin
--disable-lto --disable-libmudflap


-- 
           Summary: [4.6 regression] ARM bootstrap comparison failures after
                    stage 3
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mikpe at it dot uu dot se
 GCC build triplet: armv5tel-unknown-linux-gnueabi
  GCC host triplet: armv5tel-unknown-linux-gnueabi
GCC target triplet: armv5tel-unknown-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45162