/* llroundf() - S390 version.

   Copyright (C) 2019 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/>.  */

#if defined __s390x__ && defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT

/* We only support s390x as on s390 a long long int refers to a register pair

   of two 4byte registers instead of a 8byte register which is produced by the

   instruction.

   Note: On s390 this instruction would only be used if build with -mzarch.  */

# include <math.h>

# include <libm-alias-float.h>

long long int

__llroundf (float x)

{

  long long int y;

  /* The z196 zarch "convert to fixed" (cgebra) instruction is rounding

     x to the nearest integer with "ties away from 0" rounding mode

     (M3-field: 1) where inexact exceptions are suppressed (M4-field: 4).  */

  __asm__ ("cgebra %0,1,%1,4" : "=d" (y) : "f" (x) : "cc");

  return y;

}

libm_alias_float (__llround, llround)

#else

# include <sysdeps/ieee754/flt-32/s_llroundf.c>

#endif