-/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
+ <https://www.gnu.org/licenses/>. */
#include <math.h>
#include <get-rounding-mode.h>
#include <stdint.h>
+#include <math-barriers.h>
+#include <libm-alias-double.h>
-#ifndef FUNC
-# define FUNC lrint
-#endif
-
-#ifndef ITYPE
-# define ITYPE double
# define IREG_SIZE 64
-#else
-# ifndef IREG_SIZE
-# error IREG_SIZE not defined
-# endif
-#endif
-#ifndef OTYPE
-# define OTYPE long int
# ifdef __ILP32__
# define OREG_SIZE 32
# else
# define OREG_SIZE 64
# endif
-#else
-# ifndef OREG_SIZE
-# error OREG_SIZE not defined
-# endif
-#endif
-#if IREG_SIZE == 32
-# define IREGS "s"
-#else
# define IREGS "d"
-#endif
#if OREG_SIZE == 32
# define OREGS "w"
# define OREGS "x"
#endif
-#define __CONCATX(a,b) __CONCAT(a,b)
-OTYPE
-__CONCATX(__,FUNC) (ITYPE x)
+long int
+__lrint (double x)
{
- OTYPE result;
- ITYPE temp;
#if IREG_SIZE == 64 && OREG_SIZE == 32
+ long int result;
+
if (__builtin_fabs (x) > INT32_MAX)
{
/* Converting large values to a 32 bit int may cause the frintx/fcvtza
return result;
}
#endif
- asm ( "frintx" "\t%" IREGS "1, %" IREGS "2\n\t"
- "fcvtzs" "\t%" OREGS "0, %" IREGS "1"
- : "=r" (result), "=w" (temp) : "w" (x) );
- return result;
+
+ double r = __builtin_rint (x);
+
+ /* Prevent gcc from calling lrint directly when compiled with
+ -fno-math-errno by inserting a barrier. */
+
+ math_opt_barrier (r);
+ return r;
}
-weak_alias (__CONCATX(__,FUNC), FUNC)
+libm_alias_double (__lrint, lrint)