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df926ef62f
The scheme utilises the MATCH and NMATCH instructions to scan for 16 characters at the same rate as vermicelli scans for one. Change-Id: Ie2cef904c56651e6108593c668e9b65bc001a886
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/*
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* Copyright (c) 2015, Intel Corporation
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* Copyright (c) 2021, Arm Limited
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * 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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* * Neither the name of Intel Corporation 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* \brief Large Bounded Repeat (LBR): data structures.
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*/
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#ifndef LBR_INTERNAL_H
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#define LBR_INTERNAL_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "repeat_internal.h"
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/** \brief Common LBR header. */
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struct lbr_common {
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u32 repeatInfoOffset; //!< offset of RepeatInfo structure relative
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// to the start of lbr_common
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ReportID report; //!< report to raise on match
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};
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struct lbr_dot {
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struct lbr_common common;
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};
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struct lbr_verm {
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struct lbr_common common;
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char c; //!< escape char
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};
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struct lbr_verm16 {
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struct lbr_common common;
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m128 mask;
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};
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struct lbr_shuf {
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struct lbr_common common;
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m128 mask_lo; //!< shufti lo mask for escape chars
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m128 mask_hi; //!< shufti hi mask for escape chars
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};
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struct lbr_truf {
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struct lbr_common common;
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m128 mask1;
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m128 mask2;
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};
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/** \brief Uncompressed ("full") state structure used by the LBR. This is
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* stored in scratch, not in stream state. */
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struct lbr_state {
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u64a lastEscape; //!< \brief offset of last escape seen.
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union RepeatControl ctrl; //!< \brief repeat control block. */
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};
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#ifdef __cplusplus
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}
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#endif
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#endif // LBR_INTERNAL_H
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