Initial Spring 2016 commit.
This commit is contained in:
Geoffrey Challen
144
common/gcc-millicode/longlong.h
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144
common/gcc-millicode/longlong.h
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* From:
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* @(#)quad.h 8.1 (Berkeley) 6/4/93
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* NetBSD: quad.h,v 1.1 2005/12/20 20:29:40 christos Exp
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*/
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/*
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* Long long arithmetic.
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*
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* This library makes the following assumptions:
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*
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* - The type long long exists.
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*
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* - A long long variable is exactly twice as long as `int'.
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*
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* - The machine's arithmetic is two's complement.
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*
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* This library can provide 128-bit arithmetic on a machine with
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* 128-bit long longs and 64-bit ints, for instance, or 96-bit
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* arithmetic on machines with 48-bit ints.
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*
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* The names are built into gcc.
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*/
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#if defined(_KERNEL)
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#include <types.h>
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#include <endian.h>
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#else
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#include <sys/types.h>
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#include <sys/endian.h>
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#endif
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#include <limits.h>
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/*
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* Depending on the desired operation, we view a `long long' in
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* one or more of the following formats.
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*/
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union uu {
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long long ll; /* as a (signed) long long */
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unsigned long long ull; /* as an unsigned long long */
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int si[2]; /* as two (signed) ints */
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unsigned int ui[2]; /* as two unsigned ints */
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};
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/*
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* Define high and low parts of a long long.
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*/
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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#define H 1
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#define L 0
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#endif
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#if _BYTE_ORDER == _BIG_ENDIAN
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#define H 0
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#define L 1
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#endif
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/*
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* Total number of bits in a long long and in the pieces that make it up.
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* These are used for shifting, and also below for halfword extraction
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* and assembly.
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*/
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#define LONGLONG_BITS (sizeof(long long) * CHAR_BIT)
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#define INT_BITS (sizeof(int) * CHAR_BIT)
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#define HALF_BITS (sizeof(int) * CHAR_BIT / 2)
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/*
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* Extract high and low shortwords from longword, and move low shortword of
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* longword to upper half of long, i.e., produce the upper longword of
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* ((long long)(x) << (number_of_bits_in_int/2)).
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* [`x' must actually be unsigned int.]
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*
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* These are used in the multiply code, to split a longword into upper
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* and lower halves, and to reassemble a product as a long long, shifted
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* left (sizeof(int)*CHAR_BIT/2).
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*/
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#define HHALF(x) ((unsigned int)(x) >> HALF_BITS)
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#define LHALF(x) ((unsigned int)(x) & (((int)1 << HALF_BITS) - 1))
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#define LHUP(x) ((unsigned int)(x) << HALF_BITS)
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long long __adddi3 ( long long, long long);
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long long __anddi3 ( long long, long long);
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long long __ashldi3 ( long long, unsigned int);
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long long __ashrdi3 ( long long, unsigned int);
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int __cmpdi2 ( long long, long long);
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long long __divdi3 ( long long, long long);
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long long __iordi3 ( long long, long long);
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long long __lshldi3 ( long long, unsigned int);
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long long __lshrdi3 ( long long, unsigned int);
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long long __moddi3 ( long long, long long);
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long long __muldi3 ( long long, long long);
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long long __negdi2 ( long long);
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long long __one_cmpldi2 ( long long);
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long long __subdi3 ( long long, long long);
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int __ucmpdi2 (unsigned long long, unsigned long long);
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unsigned long long __udivdi3 (unsigned long long, unsigned long long);
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unsigned long long __umoddi3 (unsigned long long, unsigned long long);
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long long __xordi3 ( long long, long long);
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#ifndef _KERNEL
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long long __fixdfdi (double);
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long long __fixsfdi (float);
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unsigned long long __fixunsdfdi (double);
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unsigned long long __fixunssfdi (float);
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double __floatdidf (long long);
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float __floatdisf (long long);
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double __floatunsdidf(unsigned long long);
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#endif
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unsigned long long __qdivrem (unsigned long long, unsigned long long,
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unsigned long long *);
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