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Diffstat (limited to 'libgfortran/config/fpu-aix.h')
-rw-r--r-- | libgfortran/config/fpu-aix.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libgfortran/config/fpu-aix.h b/libgfortran/config/fpu-aix.h new file mode 100644 index 000000000..7d6f8dfcd --- /dev/null +++ b/libgfortran/config/fpu-aix.h @@ -0,0 +1,83 @@ +/* AIX FPU-related code. + Copyright 2005, 2007, 2009 Free Software Foundation, Inc. + Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr> + +This file is part of the GNU Fortran 95 runtime library (libgfortran). + +Libgfortran is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public +License as published by the Free Software Foundation; either +version 3 of the License, or (at your option) any later version. + +Libgfortran is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + + +/* FPU-related code for AIX. */ +#ifdef HAVE_FPTRAP_H +#include <fptrap.h> +#endif + +void +set_fpu (void) +{ + fptrap_t mode = 0; + + if (options.fpe & GFC_FPE_INVALID) +#ifdef TRP_INVALID + mode |= TRP_INVALID; +#else + st_printf ("Fortran runtime warning: IEEE 'invalid operation' " + "exception not supported.\n"); +#endif + + if (options.fpe & GFC_FPE_DENORMAL) + st_printf ("Fortran runtime warning: IEEE 'denormal number' " + "exception not supported.\n"); + + if (options.fpe & GFC_FPE_ZERO) +#ifdef TRP_DIV_BY_ZERO + mode |= TRP_DIV_BY_ZERO; +#else + st_printf ("Fortran runtime warning: IEEE 'division by zero' " + "exception not supported.\n"); +#endif + + if (options.fpe & GFC_FPE_OVERFLOW) +#ifdef TRP_OVERFLOW + mode |= TRP_OVERFLOW; +#else + st_printf ("Fortran runtime warning: IEEE 'overflow' " + "exception not supported.\n"); +#endif + + if (options.fpe & GFC_FPE_UNDERFLOW) +#ifdef TRP_UNDERFLOW + mode |= TRP_UNDERFLOW; +#else + st_printf ("Fortran runtime warning: IEEE 'underflow' " + "exception not supported.\n"); +#endif + + if (options.fpe & GFC_FPE_PRECISION) +#ifdef TRP_UNDERFLOW + mode |= TRP_UNDERFLOW; +#else + st_printf ("Fortran runtime warning: IEEE 'loss of precision' " + "exception not supported.\n"); +#endif + + fp_trap(FP_TRAP_SYNC); + fp_enable(mode); +} |