[Bug fortran/82143] add a -fdefault-real-16 flag

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82143

--- Comment #17 from janus at gcc dot gnu.org ---
Author: janus
Date: Sat Sep 23 13:15:20 2017
New Revision: 253117

URL: https://gcc.gnu.org/viewcvs?rev=253117&root=gcc&view=rev
Log:
2017-09-23  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/82143
        * lang.opt: Add the options -fdefault-real-10 and -fdefault-real-16.
        Rename flag_default_real to flag_default_real_8.
        * invoke.texi: Add documentation.
        * module.c (use_iso_fortran_env_module): flag_default_real is renamed.
        * trans-types.c (gfc_init_kinds): Implement the flags
        -fdefault-real-10 and -fdefault-real-16. Make -fdefault-double-8 work
        without -fdefault-real-8.

2017-09-23  Janus Weil  <janus@gcc.gnu.org>

        PR fortran/82143
        * gfortran.dg/promotion_3.f90: New test case.
        * gfortran.dg/promotion_4.f90: New test case.

Added:
    trunk/gcc/testsuite/gfortran.dg/promotion_3.f90
    trunk/gcc/testsuite/gfortran.dg/promotion_4.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/invoke.texi
    trunk/gcc/fortran/lang.opt
    trunk/gcc/fortran/module.c
    trunk/gcc/fortran/trans-types.c
    trunk/gcc/testsuite/ChangeLog