I'm seeing a bootstrap failure on the compile farm's gcc63 machine.  I realize
there've been several logs submitted to gcc-testresults from Laurent's
autotesters, but those testers configured with somewhat different options than
I did.  I'm configuring with:

--disable-lib{ssp,mudflap,gomp} --enable-languages=c --disable-nls

whereas Laurent passes --with-cpu=v8 and --disable-multilib.

Bootstrapping fails starting at r163383, Bernd's 4-insn combine change, when
configuring support libraries (libiberty, zlib, libdecnumber) for stage3.  I
double-checked subsequent revisions that fix other PRs from r163383 (e.g.
r163546) and those did not help either.  I tried --disable-multilib and/or
--with-cpu=niagara and that did not help.

I'm unsure of what other information to provide, but can provide more
information on request.

           Summary: [4.6 regression] bootstrap failure on sparc64-unknown-
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: froydnj at gcc dot gnu dot org
 GCC build triplet: sparc64-unknown-linux-gnu
  GCC host triplet: sparc64-unknown-linux-gnu
GCC target triplet: sparc64-unknown-linux-gnu


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