[Bug fortran/91942] ICE in match_vtag, at fortran/io.c:1485

[kargl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91942

--- Comment #4 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Wed Oct  2 17:04:57 2019
New Revision: 276472

URL: https://gcc.gnu.org/viewcvs?rev=276472&root=gcc&view=rev
Log:
2019-10-02  Steven G. Kargl  <ka...@gcc.gnu.org>

        PR fortran/91942
        * io.c (match_vtag): Check for non-NULL result->symtree.
        (match_out_tag): Check for invalid constant due to inquiry parameter.
        (match_filepos): Instead of a syntax error, go to cleanup to get better
        error messages.

2019-10-02  Steven G. Kargl  <ka...@gcc.gnu.org>

        PR fortran/91942
        * gfortran.dg/pr91587.f90: Update dg-error regex.
        * gfortran.dg/pr91942.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr91942.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/io.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/pr91587.f90