[Bug fortran/51338] seg fault in gfc_dep_compare_expr with -O2

[bdavis at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51338

--- Comment #3 from Bud Davis <bdavis at gcc dot gnu.org> 2011-11-28 21:59:02 UTC ---
Reduced:

      SUBROUTINE PAXCUT(CHIN,CHOUT)
      CHARACTER*(*) CHIN,CHOUT
      IF(INDEX(CHOUT(K:),'.OR.').EQ.INDEX(CHOUT(K:),'.AND.')) THEN
      ENDIF
      END