2014-10-24  Tobias Burnus  <burnus@net-b.de>

gcc/fortran
        * check.c (check_co_collective): Reject coindexed A args.
        (gfc_check_co_reduce): Add OPERATOR checks.
        * gfortran.texi (_gfortran_caf_co_broadcast,
        * _gfortran_caf_co_max,
        _gfortran_caf_co_min, _gfortran_caf_co_sum,
        _gfortran_caf_co_reduce): Add ABI documentation.
        * intrinsic.texi (CO_REDUCE): Document intrinsic.
        (DPROD): Returns double not single precision.
        * trans-decl.c (gfor_fndecl_co_reduce): New global var.
        (gfc_build_builtin_function_decls): Init it.
        * trans.h (gfor_fndecl_co_reduce): Declare it.
        * trans-intrinsic.c (conv_co_collective,
        gfc_conv_intrinsic_subroutine): Handle CO_REDUCE.

gcc/testsuite/
        * gfortran.dg/coarray_collectives_9.f90: Remove dg-error.
        * gfortran.dg/coarray_collectives_13.f90: New.
        * gfortran.dg/coarray_collectives_14.f90: New.
        * gfortran.dg/coarray_collectives_15.f90: New.
        * gfortran.dg/coarray_collectives_16.f90: New.

From-SVN: r216678