sysdeps/riscv/rv64/rvf/s_lroundf.c

   1 /* lroundf().  RISC-V version.
   2    Copyright (C) 2017-2020 Free Software Foundation, Inc.
   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-float.h>
  21 #include <stdint.h>
  22
  23 long int
  24 __lroundf (float x)
  25 {
  26   int64_t res;
  27   asm ("fcvt.l.s %0, %1, rmm" : "=r" (res) : "f" (x));
  28   return res;
  29 }
  30
  31 libm_alias_float (__lround, lround)