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Subject: [Bug fortran/42131] Weird translation of DO loops
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------- Comment #16 from burnus at gcc dot gnu dot org  2009-11-27 08:29 -------
(In reply to comment #12)
> > Any tricks I have missed?
> Yes - we could provide for loop versioning in the front end.
[...]
> ELSE
>    ABORT "M3 MUST NOT BE ZERO"
> ENDIF

Just for completeness a zeroness check is done for -fcheck=do:
  Fortran runtime error: DO step value is zero


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42131