[Bug fortran/67758] New: [GCC 6 regression] ICE on invalid code

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67758

            Bug ID: 67758
           Summary: [GCC 6 regression] ICE on invalid code
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ienkovich at gcc dot gnu.org
  Target Milestone: ---

>cat test.f
      COMMON /FMCOM / X(80 000 000)
            CALL T(XX(A))
      COMMON /FMCOM / XX(80 000 000)
>builds/trunk/64/20150927/bin/gfortran test.f
f951: internal compiler error: Segmentation fault
0xb1878f crash_signal
        /export/users/gnutester/stability/svn/trunk/gcc/toplev.c:353
0x3b21c3567f ???
       
/home/glibctest/rpmbuild/BUILD/glibc-2.17-c758a686/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x66eaf3 gfc_restore_last_undo_checkpoint()
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/symbol.c:3205
0x630bff reject_statement
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:2296
0x630d6c match_word_omp_simd
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:99
0x634621 match_word
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:442
0x634621 decode_statement
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:442
0x6351c4 next_free
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:1059
0x6351c4 next_statement
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:1293
0x638b61 parse_executable
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:4706
0x639f7e parse_progunit
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:5125
0x63b163 gfc_parse_file()
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/parse.c:5665
0x67cca2 gfc_be_parse_file
        /export/users/gnutester/stability/svn/trunk/gcc/fortran/f95-lang.c:209
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.


Regression started 20150808.