1/*
2 * Copyright (c) 2015, Intel Corporation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * * Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Intel Corporation nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 */
28
29/** \file
30 * \brief Shufti: character class acceleration.
31 *
32 * Utilises the SSSE3 pshufb shuffle instruction
33 */
34
35#ifndef SHUFTI_H
36#define SHUFTI_H
37
38#include "ue2common.h"
39#include "util/simd_utils.h"
40
41#ifdef __cplusplus
42extern "C"
43{
44#endif
45
46const u8 *shuftiExec(m128 mask_lo, m128 mask_hi, const u8 *buf,
47 const u8 *buf_end);
48
49// Returns (buf - 1) if not found.
50const u8 *rshuftiExec(m128 mask_lo, m128 mask_hi, const u8 *buf,
51 const u8 *buf_end);
52
53const u8 *shuftiDoubleExec(m128 mask1_lo, m128 mask1_hi,
54 m128 mask2_lo, m128 mask2_hi,
55 const u8 *buf, const u8 *buf_end);
56
57#ifdef __cplusplus
58}
59#endif
60
61#endif
62