[thirdparty/glibc.git] / sysdeps / riscv / rv32 / rvd / s_lrint.c

/* lrint().  The 32-bit RISC-V (RV32) version.
   Copyright (C) 2020-2021 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/>.  */

#include <math.h>
#include <libm-alias-double.h>
#include <stdint.h>

long int
__lrint (double x)
{
  int32_t res;
  asm ("fcvt.w.d %0, %1" : "=r" (res) : "f" (x));
  return res;
}

libm_alias_double (__lrint, lrint)
Commit	Line	Data
941a55cf	1	/* lrint(). The 32-bit RISC-V (RV32) version.
2b778ceb	2	Copyright (C) 2020-2021 Free Software Foundation, Inc.
941a55cf ZL	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library. If not, see
	17	<https://www.gnu.org/licenses/>. */
	18
	19	#include <math.h>
	20	#include <libm-alias-double.h>
	21	#include <stdint.h>
	22
	23	long int
	24	__lrint (double x)
	25	{
	26	int32_t res;
	27	asm ("fcvt.w.d %0, %1" : "=r" (res) : "f" (x));
	28	return res;
	29	}
	30
	31	libm_alias_double (__lrint, lrint)