[Bug bootstrap/93765] New: Bootstrap comparison failure; gcc/tree-vect-loop.o differs

[anton at mips dot complang.tuwien.ac.at]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93765

            Bug ID: 93765
           Summary: Bootstrap comparison failure; gcc/tree-vect-loop.o
                    differs
           Product: gcc
           Version: 9.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: anton at mips dot complang.tuwien.ac.at
  Target Milestone: ---
              Host: powerpc64-unknown-linux-gnu
            Target: powerpc64-unknown-linux-gnu
             Build: powerpc64-unknown-linux-gnu

The build log ends with:

Comparing stages 2 and 3
Bootstrap comparison failure!
gcc/tree-vect-loop.o differs

The system is a Debian 6 system, in particular:

gcc 4.4.5 (should not play a role for stages 2 and 3)
glibc 2.11.3
binutils 2.20.1-system.20100303
contrib/download_prerequisites used for gmp, isl, mpc, mpfr