diff options
Diffstat (limited to 'sysdeps/x86/fpu/fix-fp-int-compare-invalid.h')
| -rw-r--r-- | sysdeps/x86/fpu/fix-fp-int-compare-invalid.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h b/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h new file mode 100644 index 0000000000..6bad27d0fa --- /dev/null +++ b/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h @@ -0,0 +1,32 @@ +/* Fix for missing "invalid" exceptions from floating-point + comparisons. x86 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 + +/* Before GCC 8, both x87 and SSE comparisons use unordered comparison + instructions when they should use ordered comparisons + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52451>. */ +#if __GNUC_PREREQ (8, 0) +# define FIX_COMPARE_INVALID 0 +#else +# define FIX_COMPARE_INVALID 1 +#endif + +#endif /* fix-fp-int-compare-invalid.h */ |