[Bug fortran/91550] [8/9/10 Regression] ICE in do_subscript, at fortran/frontend-passes.c:2652

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91550

--- Comment #1 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Sun Sep 15 14:57:48 2019
New Revision: 275729

URL: https://gcc.gnu.org/viewcvs?rev=275729&root=gcc&view=rev
Log:
2019-09-15  Thomas Koenig  <tkoe...@gcc.gnu.org>

        PR fortran/91550
        * frontend-passes.c (do_subscript): If step equals
        zero, a previuos error has been reported; do nothing
        in this case.
        * resolve.c (gfc_resolve_iterator): Move error checking
        after type conversion.

2019-09-15  Thomas Koenig  <tkoe...@gcc.gnu.org>

        PR fortran/91550
        * gfortran.dg/do_subscript_6.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/do_subscript_6.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/frontend-passes.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog