1/*-
2 * Copyright 2013 John-Mark Gurney
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 *
28 */
29
30#ifndef _WMMINTRIN_PCLMUL_H_
31#define _WMMINTRIN_PCLMUL_H_
32
33#include <emmintrin.h>
34
35/*
36 * c selects which parts of a and b to multiple:
37 *  0x00:	a[ 63: 0] * b[ 63: 0]
38 *  0x01:	a[127:64] * b[ 63: 0]
39 *  0x10:	a[ 63: 0] * b[127:64]
40 *  0x11:	a[127:64] * b[127:64]
41 */
42#define _mm_clmulepi64_si128(a, b, c) 					\
43({									\
44	__m128i _a = (a);						\
45	__m128i _b = (b);						\
46									\
47	__asm__("pclmulqdq %3, %2, %0": "=x" (_a): "0" (_a), "xm" (_b),	\
48	    "i" (c));							\
49									\
50	_a;								\
51})
52
53#endif  /* _WMMINTRIN_PCLMUL_H_ */
54