re PR libfortran/35862 ([F2003] Implement new rounding modes for run time)

re PR libfortran/35862 ([F2003] Implement new rounding modes for run time)

2013-07-21  Tobias Burnus  <burnus@net-b.de>

        PR fortran/35862
        * libgfortran.h (GFC_FPE_DOWNWARD, GFC_FPE_TONEAREST,
        GFC_FPE_TOWARDZERO, GFC_FPE_UPWARD): New defines.

2013-07-21  Tobias Burnus  <burnus@net-b.de>

        PR fortran/35862
        * libgfortran.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): New prototypes.
        * config/fpu-387.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): New functions.
        * config/fpu-aix.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): Ditto.
        * config/fpu-generic.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): Ditto.
        * config/fpu-glibc.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): Ditto.
        * config/fpu-sysv.h (set_fpu_rounding_mode,
        get_fpu_rounding_mode): Ditto.
        * configure.ac: Check for fp_rnd and fp_rnd_t.
        * io/io.h (enum unit_round): Use GFC_FPE_* for the value.
        * io/read.c (convert_real): Set FP ronding mode.
        * Makefile.in: Regenerate.
        * aclocal.m4: Regenerate.
        * config.h.in: Regenerate.
        * configure: Regenerate.

2013-07-21  Tobias Burnus  <burnus@net-b.de>

        PR fortran/35862
        * gfortran.dg/round_4.f90: New.

Co-Authored-By: Uros Bizjak <ubizjak@gmail.com>
From-SVN: r201093