1  /* lroundf().  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 <math.h>
      20  #include <libm-alias-float.h>
      21  #include <stdint.h>
      22  
      23  #if __WORDSIZE == 64
      24  # define OP "fcvt.l.s"
      25  #elif __WORDSIZE == 32
      26  # define OP "fcvt.w.s"
      27  #else
      28  # error Unsupported
      29  #endif
      30  
      31  long int
      32  __lroundf (float x)
      33  {
      34    long int res;
      35    asm (OP "\t%0, %1, rmm" : "=r" (res) : "f" (x));
      36    return res;
      37  }
      38  
      39  libm_alias_float (__lround, lround)