[thirdparty/glibc.git] / sysdeps / x86 / fpu / fix-fp-int-compare-invalid.h

/* Fix for missing "invalid" exceptions from floating-point
   comparisons.  x86 version.
   Copyright (C) 2016-2020 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
   <https://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 */
Commit	Line	Data
1e7c8fcc JM	1	/* Fix for missing "invalid" exceptions from floating-point
1e7c8fcc JM	2	comparisons. x86 version.
d614a753	3	Copyright (C) 2016-2020 Free Software Foundation, Inc.
1e7c8fcc JM	4	This file is part of the GNU C Library.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Lesser General Public License for more details.
	15
	16	You should have received a copy of the GNU Lesser General Public
	17	License along with the GNU C Library; if not, see
5a82c748	18	<https://www.gnu.org/licenses/>. */
1e7c8fcc JM	19
	20	#ifndef FIX_FP_INT_COMPARE_INVALID_H
	21	#define FIX_FP_INT_COMPARE_INVALID_H 1
	22
91c3985c	23	/* Before GCC 8, both x87 and SSE comparisons use unordered comparison
1e7c8fcc JM	24	instructions when they should use ordered comparisons
1e7c8fcc JM	25	<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52451>. */
91c3985c JM	26	#if __GNUC_PREREQ (8, 0)
	27	# define FIX_COMPARE_INVALID 0
	28	#else
	29	# define FIX_COMPARE_INVALID 1
	30	#endif
1e7c8fcc JM	31
1e7c8fcc JM	32	#endif /* fix-fp-int-compare-invalid.h */