[Bug fortran/90093] Extended C interop: optional argument incorrectly identified as PRESENT

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90093

--- Comment #5 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Sat May 11 07:49:52 2019
New Revision: 271090

URL: https://gcc.gnu.org/viewcvs?rev=271090&root=gcc&view=rev
Log:
2019-05-11  Paul Thomas  <pa...@gcc.gnu.org>

        PR fortran/90093
        * gfortran.dg/ISO_Fortran_binding_12.f90: New test.
        * gfortran.dg/ISO_Fortran_binding_12.c: Supplementary code.

        PR fortran/90352
        * gfortran.dg/iso_c_binding_char_1.f90: New test.

        PR fortran/90355
        * gfortran.dg/ISO_Fortran_binding_4.f90: Add 'substr' to test
        the direct passing of substrings as descriptors to bind(C).
        * gfortran.dg/assign_10.f90: Increase the tree_dump count of
        'atmp' to account for the setting of the 'span' field.
        * gfortran.dg/transpose_optimization_2.f90: Ditto.

Added:
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/ISO_Fortran_binding_12.c
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/ISO_Fortran_binding_12.f90
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/iso_c_binding_char_1.f90