8b19810222
PR fortran/29383 gcc/fortran/ * gfortran.h (gfc_simplify_ieee_selected_real_kind): New prototype. * libgfortran.h (GFC_FPE_*): Use simple integer values, valid in both C and Fortran. * expr.c (gfc_check_init_expr): Simplify IEEE_SELECTED_REAL_KIND. * simplify.c (gfc_simplify_ieee_selected_real_kind): New function. * module.c (mio_symbol): Keep track of symbols which came from intrinsic modules. (gfc_use_module): Keep track of the IEEE modules. * trans-decl.c (gfc_get_symbol_decl): Adjust code since we have new intrinsic modules. (gfc_build_builtin_function_decls): Build decls for ieee_procedure_entry and ieee_procedure_exit. (is_from_ieee_module, is_ieee_module_used, save_fp_state, restore_fp_state): New functions. (gfc_generate_function_code): Save and restore floating-point state on procedure entry/exit, when IEEE modules are used. * intrinsic.texi: Document the IEEE modules. libgfortran/ * configure.host: Add checks for IEEE support, rework priorities. * configure.ac: Define IEEE_SUPPORT, check for fpsetsticky and fpresetsticky. * configure: Regenerate. * Makefile.am: Build new ieee files, install IEEE_* modules. * Makefile.in: Regenerate. * gfortran.map (GFORTRAN_1.6): Add new symbols. * libgfortran.h (get_fpu_trap_exceptions, set_fpu_trap_exceptions, support_fpu_trap, set_fpu_except_flags, support_fpu_flag, support_fpu_rounding_mode, get_fpu_state, set_fpu_state): New prototypes. * config/fpu-*.h (get_fpu_trap_exceptions, set_fpu_trap_exceptions, support_fpu_trap, set_fpu_except_flags, support_fpu_flag, support_fpu_rounding_mode, get_fpu_state, set_fpu_state): New functions. * ieee/ieee_features.F90: New file. * ieee/ieee_exceptions.F90: New file. * ieee/ieee_arithmetic.F90: New file. * ieee/ieee_helper.c: New file. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_fortran_ieee): New function. * gfortran.dg/ieee/ieee.exp: New file. * gfortran.dg/ieee/ieee_1.F90: New file. * gfortran.dg/ieee/ieee_2.f90: New file. * gfortran.dg/ieee/ieee_3.f90: New file. * gfortran.dg/ieee/ieee_4.f90: New file. * gfortran.dg/ieee/ieee_5.f90: New file. * gfortran.dg/ieee/ieee_6.f90: New file. * gfortran.dg/ieee/ieee_7.f90: New file. * gfortran.dg/ieee/ieee_rounding_1.f90: New file. From-SVN: r212102
50 lines
1.9 KiB
Fortran
50 lines
1.9 KiB
Fortran
! Implementation of the IEEE_FEATURES standard intrinsic module
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! Copyright (C) 2013 Free Software Foundation, Inc.
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! Contributed by Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
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!
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! This file is part of the GNU Fortran runtime library (libgfortran).
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!
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! Libgfortran is free software; you can redistribute it and/or
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! modify it under the terms of the GNU General Public
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! License as published by the Free Software Foundation; either
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! version 3 of the License, or (at your option) any later version.
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!
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! Libgfortran is distributed in the hope that it will be useful,
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! but WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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! GNU General Public License for more details.
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!
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! Under Section 7 of GPL version 3, you are granted additional
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! permissions described in the GCC Runtime Library Exception, version
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! 3.1, as published by the Free Software Foundation.
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!
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! You should have received a copy of the GNU General Public License and
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! a copy of the GCC Runtime Library Exception along with this program;
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! see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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! <http://www.gnu.org/licenses/>. */
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module IEEE_FEATURES
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implicit none
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private
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type, public :: IEEE_FEATURES_TYPE
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private
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integer :: hidden
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end type
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type(IEEE_FEATURES_TYPE), parameter, public :: &
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IEEE_DATATYPE = IEEE_FEATURES_TYPE(0), &
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IEEE_DENORMAL = IEEE_FEATURES_TYPE(1), &
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IEEE_DIVIDE = IEEE_FEATURES_TYPE(2), &
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IEEE_HALTING = IEEE_FEATURES_TYPE(3), &
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IEEE_INEXACT_FLAG = IEEE_FEATURES_TYPE(4), &
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IEEE_INF = IEEE_FEATURES_TYPE(5), &
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IEEE_INVALID_FLAG = IEEE_FEATURES_TYPE(6), &
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IEEE_NAN = IEEE_FEATURES_TYPE(7), &
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IEEE_ROUNDING = IEEE_FEATURES_TYPE(8), &
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IEEE_SQRT = IEEE_FEATURES_TYPE(9), &
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IEEE_UNDERFLOW_FLAG = IEEE_FEATURES_TYPE(10)
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end module IEEE_FEATURES
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