| /* Fix for missing "invalid" exceptions from floating-point |
| comparisons. s390 version. |
| Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef FIX_FP_INT_COMPARE_INVALID_H |
| #define FIX_FP_INT_COMPARE_INVALID_H 1 |
| |
| /* GCC uses unordered comparison instructions like cebr (Short BFP COMPARE) |
| when it should use ordered comparison instructions like kebr |
| (Short BFP COMPARE AND SIGNAL) in order to raise invalid exceptions if |
| any operand is quiet (or signaling) NAN. See gcc bugzilla: |
| <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77918>. |
| There exists an equivalent gcc bugzilla for Intel: |
| <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52451>. |
| Once the s390 gcc bug is fixed, the definition of FIX_COMPARE_INVALID |
| should have a __GNUC_PREREQ conditional added so that e.g. the workaround |
| to call feraiseexcept (FE_INVALID) in math/s_iseqsig_template.c can be |
| avoided. */ |
| #define FIX_COMPARE_INVALID 1 |
| |
| #endif /* fix-fp-int-compare-invalid.h */ |
