[Bug target/20214] New: [3.3/3.4/4.0 Regression] ICE with register name which is not a register in x86

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

The following invalid x86 code ICEs on the mainline and has since at least 3.2.3:
int main()
{
  register void *return_dst __asm__ ("r13");
  return *(int*)(return_dst);
}

-- 
           Summary: [3.3/3.4/4.0 Regression] ICE with register name which is
                    not a register in x86
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: minor
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20214