glibc/ports/sysdeps/aarch64/fpu/s_frint.c

/* Copyright (C) 1996-2012 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
   <http://www.gnu.org/licenses/>.  */

#include <math.h>

#ifndef FUNC
#error FUNC not defined
#endif

#ifndef TYPE
#define TYPE double
#define REGS "d"
#else
#ifndef REGS
#error REGS not defined
#endif
#endif

#ifndef INSN
#error INSN not defined
#endif

#define __CONCATX(a,b) __CONCAT(a,b)

TYPE
__CONCATX(__,FUNC) (TYPE x)
{
  TYPE result;
  asm ( INSN "\t%" REGS "0, %" REGS "1" :
	"=w" (result) : "w" (x) );
  return result;
}

#define weak_aliasx(a,b) weak_alias(a,b)
weak_aliasx (__CONCATX(__,FUNC), FUNC)
#define strong_aliasx(a,b) strong_alias(a,b)
#ifdef NO_LONG_DOUBLE
strong_aliasx (__CONCATX(__,FUNC),  __CONCATX(__,__CONCATX(FUNC,l)))
weak_aliasx (__CONCATX(__,FUNC), __CONCATX(FUNC,l))
#endif