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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright 2011, Richard Lowe.
*/
/* Functions in this file are duplicated in locallibm.il. Keep them in sync */
#ifndef _LIBM_INLINES_H
#define _LIBM_INLINES_H
#ifdef __GNUC__
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/ieeefp.h>
extern __GNU_INLINE float
__inline_sqrtf(float a)
{
float ret;
__asm__ __volatile__("sqrtss %1, %0\n\t" : "=x" (ret) : "x" (a));
return (ret);
}
extern __GNU_INLINE double
__inline_sqrt(double a)
{
double ret;
__asm__ __volatile__("sqrtsd %1, %0\n\t" : "=x" (ret) : "x" (a));
return (ret);
}
extern __GNU_INLINE double
__ieee754_sqrt(double a)
{
return (__inline_sqrt(a));
}
/*
* 00 - 24 bits
* 01 - reserved
* 10 - 53 bits
* 11 - 64 bits
*/
extern __GNU_INLINE int
__swapRP(int i)
{
int ret;
uint16_t cw;
__asm__ __volatile__("fstcw %0\n\t" : "=m" (cw));
ret = (cw >> 8) & 0x3;
cw = (cw & 0xfcff) | ((i & 0x3) << 8);
__asm__ __volatile__("fldcw %0\n\t" : : "m" (cw));
return (ret);
}
/*
* 00 - Round to nearest, with even preferred
* 01 - Round down
* 10 - Round up
* 11 - Chop
*/
extern __GNU_INLINE enum fp_direction_type
__swap87RD(enum fp_direction_type i)
{
int ret;
uint16_t cw;
__asm__ __volatile__("fstcw %0\n\t" : "=m" (cw));
ret = (cw >> 10) & 0x3;
cw = (cw & 0xf3ff) | ((i & 0x3) << 10);
__asm__ __volatile__("fldcw %0\n\t" : : "m" (cw));
return (ret);
}
extern __GNU_INLINE int
abs(int i)
{
int ret;
__asm__ __volatile__(
"movl %1, %0\n\t"
"negl %1\n\t"
"cmovnsl %1, %0\n\t"
: "=r" (ret), "+r" (i)
:
: "cc");
return (ret);
}
extern __GNU_INLINE double
copysign(double d1, double d2)
{
double tmpd;
__asm__ __volatile__(
"movd %3, %1\n\t"
"andpd %1, %0\n\t"
"andnpd %2, %1\n\t"
"orpd %1, %0\n\t"
: "+&x" (d1), "=&x" (tmpd)
: "x" (d2), "r" (0x7fffffffffffffff));
return (d1);
}
extern __GNU_INLINE double
fabs(double d)
{
double tmp;
__asm__ __volatile__(
"movd %2, %1\n\t"
"andpd %1, %0"
: "+x" (d), "=&x" (tmp)
: "r" (0x7fffffffffffffff));
return (d);
}
extern __GNU_INLINE float
fabsf(float d)
{
__asm__ __volatile__(
"andpd %1, %0"
: "+x" (d)
: "x" (0x7fffffff));
return (d);
}
extern __GNU_INLINE int
finite(double d)
{
long ret = 0x7fffffffffffffff;
uint64_t tmp;
__asm__ __volatile__(
"movq %2, %1\n\t"
"andq %1, %0\n\t"
"movq $0x7ff0000000000000, %1\n\t"
"subq %1, %0\n\t"
"shrq $63, %0\n\t"
: "+r" (ret), "=r" (tmp)
: "x" (d)
: "cc");
return (ret);
}
extern __GNU_INLINE int
signbit(double d)
{
long ret;
__asm__ __volatile__(
"movmskpd %1, %0\n\t"
"andq $1, %0\n\t"
: "=r" (ret)
: "x" (d)
: "cc");
return (ret);
}
extern __GNU_INLINE double
sqrt(double d)
{
return (__inline_sqrt(d));
}
extern __GNU_INLINE float
sqrtf(float f)
{
return (__inline_sqrtf(f));
}
#ifdef __cplusplus
}
#endif
#endif /* __GNUC__ */
#endif /* _LIBM_INLINES_H */
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