1  /* lrint().  RISC-V version.
       2     Copyright (C) 2017-2023 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 <libm-alias-double.h>
      20  #include <stdint.h>
      21  
      22  #if __WORDSIZE == 64
      23  # define OP "fcvt.l.d"
      24  #elif __WORDSIZE == 32
      25  # define OP "fcvt.w.d"
      26  #else
      27  # error Unsupported
      28  #endif
      29  
      30  long int
      31  __lrint (double x)
      32  {
      33    long int res;
      34    asm (OP "\t%0, %1" : "=r" (res) : "f" (x));
      35    return res;
      36  }
      37  
      38  libm_alias_double (__lrint, lrint)