glibc/sysdeps/powerpc/s_lrint.c

47 lines
1.4 KiB
C

/* Round floating-point to integer. PowerPC version.
Copyright (C) 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "math.h"
long int
__lrint (double x)
{
union {
double d;
long int ll[2];
} u;
asm ("fctiw %0,%1" : "=f"(u.d) : "f"(x));
return u.ll[1];
}
weak_alias (__lrint, lrint)
/* This code will also work for a 'float' argument. */
asm ("\
.globl __lrintf
.globl lrintf
.weak lrintf
.set __lrintf,__lrint
.set lrintf,__lrint
");
#ifdef NO_LONG_DOUBLE
strong_alias (__lrint, __lrintl)
weak_alias (__lrint, lrintl)
#endif