]>
Commit | Line | Data |
---|---|---|
3b14f664 | 1 | /* AIX FPU-related code. |
e3c063ce | 2 | Copyright (C) 2005-2013 Free Software Foundation, Inc. |
3b14f664 FXC |
3 | Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr> |
4 | ||
1028b2bd | 5 | This file is part of the GNU Fortran runtime library (libgfortran). |
3b14f664 FXC |
6 | |
7 | Libgfortran is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either | |
748086b7 | 10 | version 3 of the License, or (at your option) any later version. |
3b14f664 FXC |
11 | |
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
3b14f664 FXC |
25 | |
26 | ||
27 | /* FPU-related code for AIX. */ | |
28 | #ifdef HAVE_FPTRAP_H | |
29 | #include <fptrap.h> | |
30 | #endif | |
31 | ||
3b14f664 FXC |
32 | void |
33 | set_fpu (void) | |
34 | { | |
35 | fptrap_t mode = 0; | |
36 | ||
37 | if (options.fpe & GFC_FPE_INVALID) | |
38 | #ifdef TRP_INVALID | |
39 | mode |= TRP_INVALID; | |
40 | #else | |
1028b2bd JB |
41 | estr_write ("Fortran runtime warning: IEEE 'invalid operation' " |
42 | "exception not supported.\n"); | |
3b14f664 FXC |
43 | #endif |
44 | ||
45 | if (options.fpe & GFC_FPE_DENORMAL) | |
57b4d355 | 46 | estr_write ("Fortran runtime warning: Floating point 'denormal operand' " |
1028b2bd | 47 | "exception not supported.\n"); |
3b14f664 FXC |
48 | |
49 | if (options.fpe & GFC_FPE_ZERO) | |
50 | #ifdef TRP_DIV_BY_ZERO | |
51 | mode |= TRP_DIV_BY_ZERO; | |
52 | #else | |
1028b2bd JB |
53 | estr_write ("Fortran runtime warning: IEEE 'division by zero' " |
54 | "exception not supported.\n"); | |
3b14f664 FXC |
55 | #endif |
56 | ||
57 | if (options.fpe & GFC_FPE_OVERFLOW) | |
58 | #ifdef TRP_OVERFLOW | |
59 | mode |= TRP_OVERFLOW; | |
60 | #else | |
1028b2bd JB |
61 | estr_write ("Fortran runtime warning: IEEE 'overflow' " |
62 | "exception not supported.\n"); | |
3b14f664 FXC |
63 | #endif |
64 | ||
65 | if (options.fpe & GFC_FPE_UNDERFLOW) | |
66 | #ifdef TRP_UNDERFLOW | |
67 | mode |= TRP_UNDERFLOW; | |
68 | #else | |
1028b2bd JB |
69 | estr_write ("Fortran runtime warning: IEEE 'underflow' " |
70 | "exception not supported.\n"); | |
3b14f664 FXC |
71 | #endif |
72 | ||
57b4d355 JB |
73 | if (options.fpe & GFC_FPE_INEXACT) |
74 | #ifdef TRP_INEXACT | |
75 | mode |= TRP_INEXACT; | |
3b14f664 | 76 | #else |
57b4d355 | 77 | estr_write ("Fortran runtime warning: IEEE 'inexact' " |
1028b2bd | 78 | "exception not supported.\n"); |
3b14f664 FXC |
79 | #endif |
80 | ||
81 | fp_trap(FP_TRAP_SYNC); | |
82 | fp_enable(mode); | |
83 | } |