[Bug fortran/93500] ICE in gfc_numeric_ts, at fortran/expr.c:891

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93500

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Thomas Kथà¤nig <tkoe...@gcc.gnu.org>:

https://gcc.gnu.org/g:4dc6437183aec5439b88b076315ad8f31794d24b

commit r10-7795-g4dc6437183aec5439b88b076315ad8f31794d24b
Author: Thomas König <tkoe...@gcc.gnu.org>
Date:   Sun Apr 19 12:56:32 2020 +0200

    Fix PR fortran/93500, ICE on invalid.

    Returning &gfc_bad_expr when simplifying bounds after a divisin by zero
    happened results in the division by zero error actually reaching the user.

    2020-04-19  Thomas Koenig  <tkoe...@gcc.gnu.org>

            PR fortran/93500
            * resolve.c (resolve_operator): If both operands are
            NULL, return false.
            * simplify.c (simplify_bound): If a division by zero
            was seen during bound simplification, free the
            corresponcing expression and return &gfc_bad_expr.

    2020-04-19  Thomas Koenig  <tkoe...@gcc.gnu.org>

            PR fortran/93500
            * arith_divide_3.f90: New test.