[Bug fortran/35339] Improve translation of implied do loop in transfer

[koenigni at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35339

--- Comment #12 from Nicolas Koenig <koenigni at gcc dot gnu.org> ---
Author: koenigni
Date: Mon Jun  5 12:35:11 2017
New Revision: 248877

URL: https://gcc.gnu.org/viewcvs?rev=248877&root=gcc&view=rev
Log:

2017-06-05  Nicolas Koenig  <koeni...@student.ethz.ch>

        PR fortran/35339
        * frontend-passes.c (traverse_io_block): New function.
        (simplify_io_impl_do): New function.
        (optimize_namespace): Invoke gfc_code_walker with
        simplify_io_impl_do.

2017-06-05  Nicolas Koenig  <koeni...@student.ethz.ch>

        PR fortran/35339
        * gfortran.dg/implied_do_io_1.f90: New Test.
        * gfortran.dg/implied_do_io_2.f90: New Test.



Added:
    trunk/gcc/testsuite/gfortran.dg/implied_do_io_1.f90
    trunk/gcc/testsuite/gfortran.dg/implied_do_io_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/frontend-passes.c
    trunk/gcc/testsuite/ChangeLog