diff --git a/CMakeLists.txt b/CMakeLists.txt index 92abf6dc..0875b105 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -616,9 +616,9 @@ set (hs_exec_SRCS src/nfa/tamarama_internal.h src/nfa/truffle.cpp src/nfa/truffle.h - src/nfa/vermicelli.h + src/nfa/vermicelli.hpp src/nfa/vermicelli_run.h - src/nfa/vermicelli_sse.h + src/nfa/vermicelli_simd.cpp src/som/som.h src/som/som_operation.h src/som/som_runtime.h diff --git a/benchmarks/benchmarks.hpp b/benchmarks/benchmarks.hpp index eb892e51..974d2234 100644 --- a/benchmarks/benchmarks.hpp +++ b/benchmarks/benchmarks.hpp @@ -30,7 +30,7 @@ #include "nfa/shufticompile.h" #include "nfa/truffle.h" #include "nfa/trufflecompile.h" -#include "nfa/vermicelli.h" +#include "nfa/vermicelli.hpp" #include "hwlm/noodle_build.h" #include "hwlm/noodle_engine.h" #include "hwlm/noodle_internal.h" diff --git a/src/hwlm/hwlm.c b/src/hwlm/hwlm.c index c1c2837f..e50deff7 100644 --- a/src/hwlm/hwlm.c +++ b/src/hwlm/hwlm.c @@ -39,7 +39,7 @@ #include "nfa/accel.h" #include "nfa/shufti.h" #include "nfa/truffle.h" -#include "nfa/vermicelli.h" +#include "nfa/vermicelli.hpp" #include #define MIN_ACCEL_LEN_BLOCK 16 diff --git a/src/hwlm/noodle_engine_simd.hpp b/src/hwlm/noodle_engine_simd.hpp index d5f6a8d0..dfe7eea1 100644 --- a/src/hwlm/noodle_engine_simd.hpp +++ b/src/hwlm/noodle_engine_simd.hpp @@ -30,26 +30,7 @@ /* SIMD engine agnostic noodle scan parts */ #include "util/supervector/supervector.hpp" - -static u8 CASEMASK[] = { 0xff, 0xdf }; - -static really_inline -u8 caseClear8(u8 x, bool noCase) -{ - return static_cast(x & CASEMASK[(u8)noCase]); -} - -template -static really_inline SuperVector getMask(u8 c, bool noCase) { - u8 k = caseClear8(c, noCase); - return SuperVector(k); -} - -template -static really_inline SuperVector getCaseMask(void) { - return SuperVector(CASEMASK[1]); -} - +#include "util/supervector/casemask.hpp" static really_really_inline hwlm_error_t single_zscan(const struct noodTable *n,const u8 *d, const u8 *buf, diff --git a/src/nfa/accel.c b/src/nfa/accel.c index 34bd24a9..7661b7a7 100644 --- a/src/nfa/accel.c +++ b/src/nfa/accel.c @@ -30,7 +30,7 @@ #include "accel.h" #include "shufti.h" #include "truffle.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "ue2common.h" const u8 *run_accel(const union AccelAux *accel, const u8 *c, const u8 *c_end) { diff --git a/src/nfa/arm/shufti.hpp b/src/nfa/arm/shufti.hpp index 76461175..e710fd16 100644 --- a/src/nfa/arm/shufti.hpp +++ b/src/nfa/arm/shufti.hpp @@ -1,7 +1,6 @@ /* * Copyright (c) 2015-2017, Intel Corporation * Copyright (c) 2020-2021, VectorCamp PC - * Copyright (c) 2021, Arm Limited * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -30,7 +29,6 @@ /** \file * \brief Shufti: character class acceleration. - * */ template @@ -73,4 +71,4 @@ SuperVector blockDoubleMask(SuperVector mask1_lo, SuperVector mask1_hi, t.print8("t"); return !t.eq(SuperVector::Ones()); -} +} \ No newline at end of file diff --git a/src/nfa/arm/vermicelli.hpp b/src/nfa/arm/vermicelli.hpp new file mode 100644 index 00000000..d790fa1f --- /dev/null +++ b/src/nfa/arm/vermicelli.hpp @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2015-2020, Intel Corporation + * Copyright (c) 2020-2021, VectorCamp PC + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/** \file + * \brief Vermicelli: single-byte and double-byte acceleration. + */ + +template +static really_inline +const u8 *vermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = chars.eq(casemask & data); + return first_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = !chars.eq(casemask & data); + return first_zero_match_inverted(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = chars.eq(casemask & data); + return last_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, const u8 *buf, u16 const len) { + + data.print8("data"); + chars.print8("chars"); + casemask.print8("casemask"); + SuperVector mask = !chars.eq(casemask & data); + mask.print8("mask"); + return last_zero_match_inverted(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len) { + + SuperVector v = casemask & data; + SuperVector mask1 = chars1.eq(v); + SuperVector mask2 = chars2.eq(v); + SuperVector mask = mask1 & (mask2 >> 1); + + DEBUG_PRINTF("rv[0] = %02hhx, rv[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & casechar) == c2) && ((buf[-1] & casechar) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) return buf - 1; + + return first_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len) { + + SuperVector v = casemask & data; + SuperVector mask1 = chars1.eq(v); + SuperVector mask2 = chars2.eq(v); + SuperVector mask = (mask1 << 1)& mask2; + + DEBUG_PRINTF("buf[0] = %02hhx, buf[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & casechar) == c2) && ((buf[-1] & casechar) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) { + mask = mask | (SuperVector::Ones() >> (S-1)); + } + + return last_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliDoubleMaskedBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, + SuperVector const mask1, SuperVector const mask2, + u8 const c1, u8 const c2, u8 const m1, u8 const m2, u8 const *buf, u16 const len) { + + SuperVector v1 = chars1.eq(data & mask1); + SuperVector v2 = chars2.eq(data & mask2); + SuperVector mask = v1 & (v2 >> 1); + + DEBUG_PRINTF("rv[0] = %02hhx, rv[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & m1) == c2) && ((buf[-1] & m2) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) return buf - 1; + + return first_non_zero_match(buf, mask, len); +} + diff --git a/src/nfa/castle.c b/src/nfa/castle.c index c7dd6d50..29208f8d 100644 --- a/src/nfa/castle.c +++ b/src/nfa/castle.c @@ -40,7 +40,7 @@ #include "repeat.h" #include "shufti.h" #include "truffle.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "util/bitutils.h" #include "util/multibit.h" #include "util/partial_store.h" diff --git a/src/nfa/lbr.c b/src/nfa/lbr.c index 68e8e3f4..52e81ad6 100644 --- a/src/nfa/lbr.c +++ b/src/nfa/lbr.c @@ -40,7 +40,7 @@ #include "repeat_internal.h" #include "shufti.h" #include "truffle.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "util/partial_store.h" #include "util/unaligned.h" @@ -533,4 +533,4 @@ char lbrFwdScanTruf(const struct NFA *nfa, const u8 *buf, #ifdef HAVE_SVE2 #include "lbr_sve.h" -#endif \ No newline at end of file +#endif diff --git a/src/nfa/limex_accel.c b/src/nfa/limex_accel.c index 4834b6a5..a85d5a07 100644 --- a/src/nfa/limex_accel.c +++ b/src/nfa/limex_accel.c @@ -40,7 +40,7 @@ #include "shufti.h" #include "truffle.h" #include "ue2common.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "util/arch.h" #include "util/bitutils.h" #include "util/simd_utils.h" diff --git a/src/nfa/mpv.c b/src/nfa/mpv.c index 5829d43d..cba3d159 100644 --- a/src/nfa/mpv.c +++ b/src/nfa/mpv.c @@ -36,7 +36,7 @@ #include "shufti.h" #include "truffle.h" #include "ue2common.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "vermicelli_run.h" #include "util/multibit.h" #include "util/partial_store.h" diff --git a/src/nfa/nfa_rev_api.h b/src/nfa/nfa_rev_api.h index 370f96ef..d82c52a4 100644 --- a/src/nfa/nfa_rev_api.h +++ b/src/nfa/nfa_rev_api.h @@ -35,7 +35,7 @@ #include "accel.h" #include "nfa_internal.h" -#include "vermicelli.h" +#include "vermicelli.hpp" #include "util/unaligned.h" static really_inline diff --git a/src/nfa/shufti_simd.hpp b/src/nfa/shufti_simd.hpp index e7f3f6c9..09850c00 100644 --- a/src/nfa/shufti_simd.hpp +++ b/src/nfa/shufti_simd.hpp @@ -63,7 +63,7 @@ static really_inline const u8 *fwdBlock(SuperVector mask_lo, SuperVector mask_hi, SuperVector chars, const u8 *buf) { SuperVector v = blockSingleMask(mask_lo, mask_hi, chars); - return firstMatch(buf, v); + return first_zero_match_inverted(buf, v); } template @@ -71,7 +71,7 @@ static really_inline const u8 *revBlock(SuperVector mask_lo, SuperVector mask_hi, SuperVector chars, const u8 *buf) { SuperVector v = blockSingleMask(mask_lo, mask_hi, chars); - return lastMatch(buf, v); + return last_zero_match_inverted(buf, v); } template @@ -80,7 +80,7 @@ const u8 *fwdBlockDouble(SuperVector mask1_lo, SuperVector mask1_hi, Super SuperVector mask = blockDoubleMask(mask1_lo, mask1_hi, mask2_lo, mask2_hi, chars); - return firstMatch(buf, mask); + return first_zero_match_inverted(buf, mask); } template diff --git a/src/nfa/truffle_simd.hpp b/src/nfa/truffle_simd.hpp index 8d61722b..13a5e787 100644 --- a/src/nfa/truffle_simd.hpp +++ b/src/nfa/truffle_simd.hpp @@ -56,7 +56,7 @@ static really_inline const u8 *fwdBlock(SuperVector shuf_mask_lo_highclear, SuperVector shuf_mask_lo_highset, SuperVector chars, const u8 *buf) { SuperVector res = blockSingleMask(shuf_mask_lo_highclear, shuf_mask_lo_highset, chars); - return firstMatch(buf, res); + return first_zero_match_inverted(buf, res); } template @@ -120,7 +120,7 @@ static really_inline const u8 *revBlock(SuperVector shuf_mask_lo_highclear, SuperVector shuf_mask_lo_highset, SuperVector v, const u8 *buf) { SuperVector res = blockSingleMask(shuf_mask_lo_highclear, shuf_mask_lo_highset, v); - return lastMatch(buf, res); + return last_zero_match_inverted(buf, res); } template diff --git a/src/nfa/vermicelli.h b/src/nfa/vermicelli.h deleted file mode 100644 index 9defd899..00000000 --- a/src/nfa/vermicelli.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (c) 2015-2020, Intel Corporation - * Copyright (c) 2021, Arm Limited - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Intel Corporation nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** \file - * \brief Vermicelli: single-byte and double-byte acceleration. - */ - -#ifndef VERMICELLI_H -#define VERMICELLI_H - -#include "util/bitutils.h" -#include "util/simd_utils.h" -#include "util/unaligned.h" - -#if !defined(HAVE_AVX512) -#include "vermicelli_common.h" -#endif - -#ifdef HAVE_SVE2 -#include "vermicelli_sve.h" -#else -#include "vermicelli_sse.h" -#endif - -static really_inline -const u8 *vermicelliDoubleMaskedExec(char c1, char c2, char m1, char m2, - const u8 *buf, const u8 *buf_end) { - DEBUG_PRINTF("double verm scan (\\x%02hhx&\\x%02hhx)(\\x%02hhx&\\x%02hhx) " - "over %zu bytes\n", c1, m1, c2, m2, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars1 = VERM_SET_FN(c1); - VERM_TYPE chars2 = VERM_SET_FN(c2); - VERM_TYPE mask1 = VERM_SET_FN(m1); - VERM_TYPE mask2 = VERM_SET_FN(m2); - -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = dvermMiniMasked(chars1, chars2, mask1, mask2, buf, - buf_end); - if (ptr) { - return ptr; - } - - /* check for partial match at end */ - if ((buf_end[-1] & m1) == (u8)c1) { - DEBUG_PRINTF("partial!!!\n"); - return buf_end - 1; - } - - return buf_end; - } -#endif - - assert((buf_end - buf) >= VERM_BOUNDARY); - uintptr_t min = (uintptr_t)buf % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf forward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *p = dvermPreconditionMasked(chars1, chars2, mask1, mask2, buf); - if (p) { - return p; - } - - buf += VERM_BOUNDARY - min; - assert(buf < buf_end); - } - - // Aligned loops from here on in - const u8 *ptr = dvermSearchAlignedMasked(chars1, chars2, mask1, mask2, c1, - c2, m1, m2, buf, buf_end); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end - ptr = dvermPreconditionMasked(chars1, chars2, mask1, mask2, - buf_end - VERM_BOUNDARY); - - if (ptr) { - return ptr; - } - - /* check for partial match at end */ - if ((buf_end[-1] & m1) == (u8)c1) { - DEBUG_PRINTF("partial!!!\n"); - return buf_end - 1; - } - - return buf_end; -} - -#endif /* VERMICELLI_H */ diff --git a/src/nfa/vermicelli_common.h b/src/nfa/vermicelli.hpp similarity index 51% rename from src/nfa/vermicelli_common.h rename to src/nfa/vermicelli.hpp index aca58dcb..105194b1 100644 --- a/src/nfa/vermicelli_common.h +++ b/src/nfa/vermicelli.hpp @@ -1,5 +1,6 @@ /* * Copyright (c) 2015-2020, Intel Corporation + * Copyright (c) 2020-2021, VectorCamp PC * Copyright (c) 2021, Arm Limited * * Redistribution and use in source and binary forms, with or without @@ -28,52 +29,72 @@ */ /** \file - * \brief Vermicelli: Implementation shared between architectures. - * - * (users should include vermicelli.h instead of this) + * \brief Vermicelli: single-byte and double-byte acceleration. */ -#define VERM_BOUNDARY 16 -#define VERM_TYPE m128 -#define VERM_SET_FN set1_16x8 +#ifndef VERMICELLI_HPP +#define VERMICELLI_HPP -// returns NULL if not found -static really_inline -const u8 *dvermPreconditionMasked(m128 chars1, m128 chars2, - m128 mask1, m128 mask2, const u8 *buf) { - m128 data = loadu128(buf); // unaligned - m128 v1 = eq128(chars1, and128(data, mask1)); - m128 v2 = eq128(chars2, and128(data, mask2)); - u32 z = movemask128(and128(v1, rshiftbyte_m128(v2, 1))); +#include "util/bitutils.h" - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - u32 pos = ctz32(z); - return buf + pos; - } - return NULL; +#ifdef HAVE_SVE2 +#include "vermicelli_sve.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif +const u8 *vermicelliExec(char c, char noCase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus } +#endif -static really_inline -const u8 *dvermSearchAlignedMasked(m128 chars1, m128 chars2, - m128 mask1, m128 mask2, u8 c1, u8 c2, u8 m1, - u8 m2, const u8 *buf, const u8 *buf_end) { - assert((size_t)buf % 16 == 0); +#ifdef __cplusplus +extern "C" { +#endif +const u8 *nvermicelliExec(char c, char noCase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif - for (; buf + 16 < buf_end; buf += 16) { - m128 data = load128(buf); - m128 v1 = eq128(chars1, and128(data, mask1)); - m128 v2 = eq128(chars2, and128(data, mask2)); - u32 z = movemask128(and128(v1, rshiftbyte_m128(v2, 1))); +#ifdef __cplusplus +extern "C" { +#endif +const u8 *rvermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif - if ((buf[15] & m1) == c1 && (buf[16] & m2) == c2) { - z |= (1 << 15); - } - if (unlikely(z)) { - u32 pos = ctz32(z); - return buf + pos; - } - } +#ifdef __cplusplus +extern "C" { +#endif +const u8 *rnvermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif - return NULL; -} \ No newline at end of file +#ifdef __cplusplus +extern "C" { +#endif +const u8 *vermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif + +#ifdef __cplusplus +extern "C" { +#endif +const u8 *rvermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif + +#ifdef __cplusplus +extern "C" { +#endif +const u8 *vermicelliDoubleMaskedExec(char c1, char c2, char m1, char m2, const u8 *buf, const u8 *buf_end); +#ifdef __cplusplus +} +#endif + +#endif /* VERMICELLI_HPP */ \ No newline at end of file diff --git a/src/nfa/vermicelli_run.h b/src/nfa/vermicelli_run.h index d6fe7ec7..1deda48a 100644 --- a/src/nfa/vermicelli_run.h +++ b/src/nfa/vermicelli_run.h @@ -26,7 +26,10 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include "vermicelli.h" +#include "vermicelli.hpp" + +#define VERM_BOUNDARY 16 +#define VERM_TYPE m128 static really_inline const u8 *find_xverm_run(char c, char nocase, u32 repeat, UNUSED const u8 *buf, diff --git a/src/nfa/vermicelli_simd.cpp b/src/nfa/vermicelli_simd.cpp new file mode 100644 index 00000000..dbce6dc4 --- /dev/null +++ b/src/nfa/vermicelli_simd.cpp @@ -0,0 +1,549 @@ +/* + * Copyright (c) 2015-2020, Intel Corporation + * Copyright (c) 2020-2021, VectorCamp PC + * Copyright (c) 2021, Arm Limited + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/** \file + * \brief Vermicelli: single-byte and double-byte acceleration. + */ + +#include "util/bitutils.h" +#include "util/simd_utils.h" + +#include "vermicelli.hpp" +#include "util/supervector/casemask.hpp" +#include "util/match.hpp" + +template +static really_inline +const u8 *vermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len); + +template +static really_inline +const u8 *vermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len); + +template +static really_inline +const u8 *rvermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len); + +template +static really_inline +const u8 *rvermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, const u8 *buf, u16 const len); + +template +static really_inline +const u8 *vermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len); + +template +static really_inline +const u8 *rvermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len); + +template +static really_inline +const u8 *vermicelliDoubleMaskedBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, + SuperVector const mask1, SuperVector const mask2, + u8 const c1, u8 const c2, u8 const m1, u8 const m2, u8 const *buf, u16 const len); + +#if defined(ARCH_IA32) || defined(ARCH_X86_64) +#include "x86/vermicelli.hpp" +#elif defined(ARCH_ARM32) || defined(ARCH_AARCH64) +#include "arm/vermicelli.hpp" +#endif + +template +static const u8 *vermicelliExecReal(SuperVector const chars, SuperVector const casemask, u8 const *buf, u8 const *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("verm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf; + const u8 *rv; + + __builtin_prefetch(d + 64); + __builtin_prefetch(d + 2*64); + __builtin_prefetch(d + 3*64); + __builtin_prefetch(d + 4*64); + DEBUG_PRINTF("start %p end %p \n", d, buf_end); + assert(d < buf_end); + if (d + S <= buf_end) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDUP_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDUP_PTR(d, S); + SuperVector data = SuperVector::loadu(d); + rv = vermicelliBlock(data, chars, casemask, d, S); + if (rv) return rv; + d = d1; + } + + while(d + S <= buf_end) { + __builtin_prefetch(d + 64); + DEBUG_PRINTF("d %p \n", d); + SuperVector data = SuperVector::load(d); + rv = vermicelliBlock(data, chars, casemask, d, S); + if (rv) return rv; + d += S; + } + } + + DEBUG_PRINTF("d %p e %p \n", d, buf_end); + // finish off tail + + if (d != buf_end) { + SuperVector data = SuperVector::loadu_maskz(d, buf_end - d); + rv = vermicelliBlock(data, chars, casemask, d, buf_end - d); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + return buf_end; +} + +template +static const u8 *nvermicelliExecReal(SuperVector const chars, SuperVector const casemask, const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("verm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf; + const u8 *rv; + + __builtin_prefetch(d + 64); + __builtin_prefetch(d + 2*64); + __builtin_prefetch(d + 3*64); + __builtin_prefetch(d + 4*64); + DEBUG_PRINTF("start %p end %p \n", d, buf_end); + assert(d < buf_end); + if (d + S <= buf_end) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDUP_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDUP_PTR(d, S); + SuperVector data = SuperVector::loadu(d); + rv = vermicelliBlockNeg(data, chars, casemask, d, S); + if (rv) return rv; + d = d1; + } + + while(d + S <= buf_end) { + __builtin_prefetch(d + 64); + DEBUG_PRINTF("d %p \n", d); + SuperVector data = SuperVector::load(d); + rv = vermicelliBlockNeg(data, chars, casemask, d, S); + if (rv) return rv; + d += S; + } + } + + DEBUG_PRINTF("d %p e %p \n", d, buf_end); + // finish off tail + + if (d != buf_end) { + SuperVector data = SuperVector::loadu_maskz(d, buf_end - d); + rv = vermicelliBlockNeg(data, chars, casemask, d, buf_end - d); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + return buf_end; +} + +// Reverse vermicelli scan. Provides exact semantics and returns (buf - 1) if +// character not found. +template +const u8 *rvermicelliExecReal(SuperVector const chars, SuperVector const casemask, const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("rverm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf_end; + const u8 *rv; + + __builtin_prefetch(d - 64); + __builtin_prefetch(d - 2*64); + __builtin_prefetch(d - 3*64); + __builtin_prefetch(d - 4*64); + DEBUG_PRINTF("start %p end %p \n", buf, d); + assert(d > buf); + if (d - S >= buf) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDDOWN_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDDOWN_PTR(d, S); + SuperVector data = SuperVector::loadu(d - S); + rv = rvermicelliBlock(data, chars, casemask, d - S, S); + DEBUG_PRINTF("rv %p \n", rv); + if (rv) return rv; + d = d1; + } + + while (d - S >= buf) { + DEBUG_PRINTF("aligned %p \n", d); + // On large packet buffers, this prefetch appears to get us about 2%. + __builtin_prefetch(d - 64); + + d -= S; + SuperVector data = SuperVector::load(d); + rv = rvermicelliBlock(data, chars, casemask, d, S); + if (rv) return rv; + } + } + + DEBUG_PRINTF("tail d %p e %p \n", buf, d); + // finish off head + + if (d != buf) { + SuperVector data = SuperVector::loadu(buf); + rv = rvermicelliBlock(data, chars, casemask, buf, d - buf); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + return buf - 1; +} + +// Reverse vermicelli scan. Provides exact semantics and returns (buf - 1) if +// character not found. +template +const u8 *rnvermicelliExecReal(SuperVector const chars, SuperVector const casemask, const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("rverm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf_end; + const u8 *rv; + + __builtin_prefetch(d - 64); + __builtin_prefetch(d - 2*64); + __builtin_prefetch(d - 3*64); + __builtin_prefetch(d - 4*64); + DEBUG_PRINTF("start %p end %p \n", buf, d); + assert(d > buf); + if (d - S >= buf) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDDOWN_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDDOWN_PTR(d, S); + SuperVector data = SuperVector::loadu(d - S); + rv = rvermicelliBlockNeg(data, chars, casemask, d - S, S); + DEBUG_PRINTF("rv %p \n", rv); + if (rv) return rv; + d = d1; + } + + while (d - S >= buf) { + DEBUG_PRINTF("aligned %p \n", d); + // On large packet buffers, this prefetch appears to get us about 2%. + __builtin_prefetch(d - 64); + + d -= S; + SuperVector data = SuperVector::load(d); + rv = rvermicelliBlockNeg(data, chars, casemask, d, S); + if (rv) return rv; + } + } + + DEBUG_PRINTF("tail d %p e %p \n", buf, d); + // finish off head + + if (d != buf) { + SuperVector data = SuperVector::loadu(buf); + rv = rvermicelliBlockNeg(data, chars, casemask, buf, d - buf); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + return buf - 1; +} + +template +static const u8 *vermicelliDoubleExecReal(u8 const c1, u8 const c2, SuperVector const casemask, + const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("verm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf; + const u8 *rv; + // SuperVector lastmask1{0}; + const SuperVector chars1 = SuperVector::dup_u8(c1); + const SuperVector chars2 = SuperVector::dup_u8(c2); + const u8 casechar = casemask.u.u8[0]; + + __builtin_prefetch(d + 64); + __builtin_prefetch(d + 2*64); + __builtin_prefetch(d + 3*64); + __builtin_prefetch(d + 4*64); + DEBUG_PRINTF("start %p end %p \n", d, buf_end); + assert(d < buf_end); + if (d + S <= buf_end) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDUP_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDUP_PTR(d, S); + SuperVector data = SuperVector::loadu(d); + rv = vermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, d, S); + if (rv) return rv; + d = d1; + } + + while(d + S <= buf_end) { + __builtin_prefetch(d + 64); + DEBUG_PRINTF("d %p \n", d); + SuperVector data = SuperVector::load(d); + rv = vermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, d, S); + if (rv) return rv; + d += S; + } + } + + DEBUG_PRINTF("tail d %p e %p \n", d, buf_end); + // finish off tail + + if (d != buf_end) { + SuperVector data = SuperVector::loadu_maskz(d, buf_end - d); + rv = vermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, d, buf_end - d); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + DEBUG_PRINTF("real tail d %p e %p \n", d, buf_end); + /* check for partial match at end */ + u8 mask = casemask.u.u8[0]; + if ((buf_end[-1] & mask) == (u8)c1) { + DEBUG_PRINTF("partial!!!\n"); + return buf_end - 1; + } + + return buf_end; +} + +// /* returns highest offset of c2 (NOTE: not c1) */ +template +const u8 *rvermicelliDoubleExecReal(char c1, char c2, SuperVector const casemask, const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("rverm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + char s[255]; + snprintf(s, buf_end - buf + 1, "%s", buf); + DEBUG_PRINTF("b %s\n", s); + + const u8 *d = buf_end; + const u8 *rv; + const SuperVector chars1 = SuperVector::dup_u8(c1); + const SuperVector chars2 = SuperVector::dup_u8(c2); + const u8 casechar = casemask.u.u8[0]; + + __builtin_prefetch(d - 64); + __builtin_prefetch(d - 2*64); + __builtin_prefetch(d - 3*64); + __builtin_prefetch(d - 4*64); + DEBUG_PRINTF("start %p end %p \n", buf, d); + assert(d > buf); + if (d - S >= buf) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDDOWN_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDDOWN_PTR(d, S); + SuperVector data = SuperVector::loadu(d - S); + rv = rvermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, d - S, S); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + d = d1; + } + + while (d - S >= buf) { + DEBUG_PRINTF("aligned %p \n", d); + // On large packet buffers, this prefetch appears to get us about 2%. + __builtin_prefetch(d - 64); + + d -= S; + SuperVector data = SuperVector::load(d); + rv = rvermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, d, S); + if (rv) return rv; + } + } + + DEBUG_PRINTF("tail d %p e %p \n", buf, d); + // finish off head + + if (d != buf) { + SuperVector data = SuperVector::loadu(buf); + rv = rvermicelliDoubleBlock(data, chars1, chars2, casemask, c1, c2, casechar, buf, d - buf); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + return buf - 1; +} + +template +static const u8 *vermicelliDoubleMaskedExecReal(u8 const c1, u8 const c2, u8 const m1, u8 const m2, + const u8 *buf, const u8 *buf_end) { + assert(buf && buf_end); + assert(buf < buf_end); + DEBUG_PRINTF("verm %p len %zu\n", buf, buf_end - buf); + DEBUG_PRINTF("b %s\n", buf); + + const u8 *d = buf; + const u8 *rv; + // SuperVector lastmask1{0}; + const SuperVector chars1 = SuperVector::dup_u8(c1); + const SuperVector chars2 = SuperVector::dup_u8(c2); + const SuperVector mask1 = SuperVector::dup_u8(m1); + const SuperVector mask2 = SuperVector::dup_u8(m2); + + __builtin_prefetch(d + 64); + __builtin_prefetch(d + 2*64); + __builtin_prefetch(d + 3*64); + __builtin_prefetch(d + 4*64); + DEBUG_PRINTF("start %p end %p \n", d, buf_end); + assert(d < buf_end); + if (d + S <= buf_end) { + // Reach vector aligned boundaries + DEBUG_PRINTF("until aligned %p \n", ROUNDUP_PTR(d, S)); + if (!ISALIGNED_N(d, S)) { + u8 const *d1 = ROUNDUP_PTR(d, S); + SuperVector data = SuperVector::loadu(d); + rv = vermicelliDoubleMaskedBlock(data, chars1, chars2, mask1, mask2, c1, c2, m1, m2, d, S); + if (rv) return rv; + d = d1; + } + + while(d + S <= buf_end) { + __builtin_prefetch(d + 64); + DEBUG_PRINTF("d %p \n", d); + SuperVector data = SuperVector::load(d); + rv = vermicelliDoubleMaskedBlock(data, chars1, chars2, mask1, mask2, c1, c2, m1, m2, d, S); + if (rv) return rv; + d += S; + } + } + + DEBUG_PRINTF("tail d %p e %p \n", d, buf_end); + // finish off tail + + if (d != buf_end) { + SuperVector data = SuperVector::loadu_maskz(d, buf_end - d); + rv = vermicelliDoubleMaskedBlock(data, chars1, chars2, mask1, mask2, c1, c2, m1, m2, d, buf_end - d); + DEBUG_PRINTF("rv %p \n", rv); + if (rv && rv < buf_end) return rv; + } + + DEBUG_PRINTF("real tail d %p e %p \n", d, buf_end); + /* check for partial match at end */ + if ((buf_end[-1] & m1) == (u8)c1) { + DEBUG_PRINTF("partial!!!\n"); + return buf_end - 1; + } + + return buf_end; +} + +extern "C" const u8 *vermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("verm scan %s\\x%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector chars = SuperVector::dup_u8(c); + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return vermicelliExecReal(chars, casemask, buf, buf_end); +} + +/* like vermicelliExec except returns the address of the first character which + * is not c */ +extern "C" const u8 *nvermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("nverm scan %s\\x%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector chars = SuperVector::dup_u8(c); + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return nvermicelliExecReal(chars, casemask, buf, buf_end); +} + +extern "C" const u8 *rvermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("rev verm scan %s\\x%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector chars = SuperVector::dup_u8(c); + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return rvermicelliExecReal(chars, casemask, buf, buf_end); +} + +extern "C" const u8 *rnvermicelliExec(char c, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("rev verm scan %s\\x%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector chars = SuperVector::dup_u8(c); + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return rnvermicelliExecReal(chars, casemask, buf, buf_end); +} + +extern "C" const u8 *vermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("double verm scan %s\\x%02hhx%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c1, c2, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return vermicelliDoubleExecReal(c1, c2, casemask, buf, buf_end); +} + +extern "C" const u8 *rvermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("rev double verm scan %s\\x%02hhx%02hhx over %zu bytes\n", + nocase ? "nocase " : "", c1, c2, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + const SuperVector casemask{nocase ? getCaseMask() : SuperVector::Ones()}; + + return rvermicelliDoubleExecReal(c1, c2, casemask, buf, buf_end); +} + +extern "C" const u8 *vermicelliDoubleMaskedExec(char c1, char c2, char m1, char m2, + const u8 *buf, const u8 *buf_end) { + DEBUG_PRINTF("double verm scan (\\x%02hhx&\\x%02hhx)(\\x%02hhx&\\x%02hhx) " + "over %zu bytes\n", c1, m1, c2, m2, (size_t)(buf_end - buf)); + assert(buf < buf_end); + + return vermicelliDoubleMaskedExecReal(c1, c2, m1, m2, buf, buf_end); +} diff --git a/src/nfa/vermicelli_sse.h b/src/nfa/vermicelli_sse.h deleted file mode 100644 index 268e9e08..00000000 --- a/src/nfa/vermicelli_sse.h +++ /dev/null @@ -1,1284 +0,0 @@ -/* - * Copyright (c) 2015-2020, Intel Corporation - * Copyright (c) 2021, Arm Limited - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Intel Corporation nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** \file - * \brief Vermicelli: Intel SSE implementation. - * - * (users should include vermicelli.h instead of this) - */ - -#if !defined(HAVE_AVX512) - -#define VERM_BOUNDARY 16 -#define VERM_TYPE m128 -#define VERM_SET_FN set1_16x8 - -static really_inline -const u8 *vermSearchAligned(m128 chars, const u8 *buf, const u8 *buf_end, - char negate) { - assert((size_t)buf % 16 == 0); - for (; buf + 31 < buf_end; buf += 32) { - m128 data = load128(buf); - u32 z1 = movemask128(eq128(chars, data)); - m128 data2 = load128(buf + 16); - u32 z2 = movemask128(eq128(chars, data2)); - u32 z = z1 | (z2 << 16); - if (negate) { - z = ~z; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - for (; buf + 15 < buf_end; buf += 16) { - m128 data = load128(buf); - u32 z = movemask128(eq128(chars, data)); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return NULL; -} - -static really_inline -const u8 *vermSearchAlignedNocase(m128 chars, const u8 *buf, - const u8 *buf_end, char negate) { - assert((size_t)buf % 16 == 0); - m128 casemask = set1_16x8(CASE_CLEAR); - - for (; buf + 31 < buf_end; buf += 32) { - m128 data = load128(buf); - u32 z1 = movemask128(eq128(chars, and128(casemask, data))); - m128 data2 = load128(buf + 16); - u32 z2 = movemask128(eq128(chars, and128(casemask, data2))); - u32 z = z1 | (z2 << 16); - if (negate) { - z = ~z; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - - for (; buf + 15 < buf_end; buf += 16) { - m128 data = load128(buf); - u32 z = movemask128(eq128(chars, and128(casemask, data))); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *vermUnalign(m128 chars, const u8 *buf, char negate) { - m128 data = loadu128(buf); // unaligned - u32 z = movemask128(eq128(chars, data)); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *vermUnalignNocase(m128 chars, const u8 *buf, char negate) { - m128 casemask = set1_16x8(CASE_CLEAR); - m128 data = loadu128(buf); // unaligned - u32 z = movemask128(eq128(chars, and128(casemask, data))); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - -static really_inline -const u8 *lastMatchOffset(const u8 *buf_end, u32 z) { - assert(z); - return buf_end - 16 + 31 - clz32(z); -} - -static really_inline -const u8 *rvermSearchAligned(m128 chars, const u8 *buf, const u8 *buf_end, - char negate) { - assert((size_t)buf_end % 16 == 0); - for (; buf + 15 < buf_end; buf_end -= 16) { - m128 data = load128(buf_end - 16); - u32 z = movemask128(eq128(chars, data)); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf_end, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return NULL; -} - -static really_inline -const u8 *rvermSearchAlignedNocase(m128 chars, const u8 *buf, - const u8 *buf_end, char negate) { - assert((size_t)buf_end % 16 == 0); - m128 casemask = set1_16x8(CASE_CLEAR); - - for (; buf + 15 < buf_end; buf_end -= 16) { - m128 data = load128(buf_end - 16); - u32 z = movemask128(eq128(chars, and128(casemask, data))); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf_end, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rvermUnalign(m128 chars, const u8 *buf, char negate) { - m128 data = loadu128(buf); // unaligned - u32 z = movemask128(eq128(chars, data)); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf + 16, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rvermUnalignNocase(m128 chars, const u8 *buf, char negate) { - m128 casemask = set1_16x8(CASE_CLEAR); - m128 data = loadu128(buf); // unaligned - u32 z = movemask128(eq128(chars, and128(casemask, data))); - if (negate) { - z = ~z & 0xffff; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf + 16, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - -static really_inline -const u8 *dvermSearchAligned(m128 chars1, m128 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - for (; buf + 16 < buf_end; buf += 16) { - m128 data = load128(buf); - u32 z = movemask128(and128(eq128(chars1, data), - rshiftbyte_m128(eq128(chars2, data), 1))); - if (buf[15] == c1 && buf[16] == c2) { - z |= (1 << 15); - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - - return NULL; -} - -static really_inline -const u8 *dvermSearchAlignedNocase(m128 chars1, m128 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf % 16 == 0); - m128 casemask = set1_16x8(CASE_CLEAR); - - for (; buf + 16 < buf_end; buf += 16) { - m128 data = load128(buf); - m128 v = and128(casemask, data); - u32 z = movemask128(and128(eq128(chars1, v), - rshiftbyte_m128(eq128(chars2, v), 1))); - if ((buf[15] & CASE_CLEAR) == c1 && (buf[16] & CASE_CLEAR) == c2) { - z |= (1 << 15); - } - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *dvermPrecondition(m128 chars1, m128 chars2, const u8 *buf) { - m128 data = loadu128(buf); // unaligned - u32 z = movemask128(and128(eq128(chars1, data), - rshiftbyte_m128(eq128(chars2, data), 1))); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *dvermPreconditionNocase(m128 chars1, m128 chars2, const u8 *buf) { - /* due to laziness, nonalphas and nocase having interesting behaviour */ - m128 casemask = set1_16x8(CASE_CLEAR); - m128 data = loadu128(buf); // unaligned - m128 v = and128(casemask, data); - u32 z = movemask128(and128(eq128(chars1, v), - rshiftbyte_m128(eq128(chars2, v), 1))); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - const u8 *matchPos = buf + ctz32(z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - return NULL; -} - - -static really_inline -const u8 *rdvermSearchAligned(m128 chars1, m128 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf_end % 16 == 0); - - for (; buf + 16 < buf_end; buf_end -= 16) { - m128 data = load128(buf_end - 16); - u32 z = movemask128(and128(eq128(chars2, data), - lshiftbyte_m128(eq128(chars1, data), 1))); - if (buf_end[-17] == c1 && buf_end[-16] == c2) { - z |= 1; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf_end, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return buf_end; -} - -static really_inline -const u8 *rdvermSearchAlignedNocase(m128 chars1, m128 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf_end % 16 == 0); - m128 casemask = set1_16x8(CASE_CLEAR); - - for (; buf + 16 < buf_end; buf_end -= 16) { - m128 data = load128(buf_end - 16); - m128 v = and128(casemask, data); - u32 z = movemask128(and128(eq128(chars2, v), - lshiftbyte_m128(eq128(chars1, v), 1))); - if ((buf_end[-17] & CASE_CLEAR) == c1 - && (buf_end[-16] & CASE_CLEAR) == c2) { - z |= 1; - } - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf_end, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - } - return buf_end; -} - -// returns NULL if not found -static really_inline -const u8 *rdvermPrecondition(m128 chars1, m128 chars2, const u8 *buf) { - m128 data = loadu128(buf); - u32 z = movemask128(and128(eq128(chars2, data), - lshiftbyte_m128(eq128(chars1, data), 1))); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf + 16, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rdvermPreconditionNocase(m128 chars1, m128 chars2, const u8 *buf) { - /* due to laziness, nonalphas and nocase having interesting behaviour */ - m128 casemask = set1_16x8(CASE_CLEAR); - m128 data = loadu128(buf); - m128 v = and128(casemask, data); - u32 z = movemask128(and128(eq128(chars2, v), - lshiftbyte_m128(eq128(chars1, v), 1))); - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - const u8 *matchPos = lastMatchOffset(buf + 16, z); - DEBUG_PRINTF("match pos %p\n", matchPos); - return matchPos; - } - - return NULL; -} - -#else // HAVE_AVX512 - -#define VERM_BOUNDARY 64 -#define VERM_TYPE m512 -#define VERM_SET_FN set1_64x8 - -static really_inline -const u8 *vermMini(m512 chars, const u8 *buf, const u8 *buf_end, char negate) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - - u64a z = eq512mask(chars, data); - - if (negate) { - z = ~z & mask; - } - z &= mask; - if (unlikely(z)) { - return buf + ctz64(z); - } - return NULL; -} - -static really_inline -const u8 *vermMiniNocase(m512 chars, const u8 *buf, const u8 *buf_end, - char negate) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - m512 casemask = set1_64x8(CASE_CLEAR); - m512 v = and512(casemask, data); - - u64a z = eq512mask(chars, v); - - if (negate) { - z = ~z & mask; - } - z &= mask; - if (unlikely(z)) { - return buf + ctz64(z); - } - return NULL; -} - -static really_inline -const u8 *vermSearchAligned(m512 chars, const u8 *buf, const u8 *buf_end, - char negate) { - assert((size_t)buf % 64 == 0); - for (; buf + 63 < buf_end; buf += 64) { - m512 data = load512(buf); - u64a z = eq512mask(chars, data); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - } - return NULL; -} - -static really_inline -const u8 *vermSearchAlignedNocase(m512 chars, const u8 *buf, - const u8 *buf_end, char negate) { - assert((size_t)buf % 64 == 0); - m512 casemask = set1_64x8(CASE_CLEAR); - - for (; buf + 63 < buf_end; buf += 64) { - m512 data = load512(buf); - u64a z = eq512mask(chars, and512(casemask, data)); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *vermUnalign(m512 chars, const u8 *buf, char negate) { - m512 data = loadu512(buf); // unaligned - u64a z = eq512mask(chars, data); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return buf + ctz64(z); - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *vermUnalignNocase(m512 chars, const u8 *buf, char negate) { - m512 casemask = set1_64x8(CASE_CLEAR); - m512 data = loadu512(buf); // unaligned - u64a z = eq512mask(chars, and512(casemask, data)); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return buf + ctz64(z); - } - return NULL; -} - -static really_inline -const u8 *dvermMini(m512 chars1, m512 chars2, const u8 *buf, - const u8 *buf_end) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - - u64a z = eq512mask(chars1, data) & (eq512mask(chars2, data) >> 1); - - z &= mask; - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -static really_inline -const u8 *dvermMiniNocase(m512 chars1, m512 chars2, const u8 *buf, - const u8 *buf_end) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - m512 casemask = set1_64x8(CASE_CLEAR); - m512 v = and512(casemask, data); - - u64a z = eq512mask(chars1, v) & (eq512mask(chars2, v) >> 1); - - z &= mask; - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -static really_inline -const u8 *dvermMiniMasked(m512 chars1, m512 chars2, m512 mask1, m512 mask2, - const u8 *buf, const u8 *buf_end) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - m512 v1 = and512(data, mask1); - m512 v2 = and512(data, mask2); - - u64a z = eq512mask(chars1, v1) & (eq512mask(chars2, v2) >> 1); - - z &= mask; - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -static really_inline -const u8 *dvermSearchAligned(m512 chars1, m512 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - for (; buf + 64 < buf_end; buf += 64) { - m512 data = load512(buf); - u64a z = eq512mask(chars1, data) & (eq512mask(chars2, data) >> 1); - if (buf[63] == c1 && buf[64] == c2) { - z |= (1ULL << 63); - } - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - } - - return NULL; -} - -static really_inline -const u8 *dvermSearchAlignedNocase(m512 chars1, m512 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf % 64 == 0); - m512 casemask = set1_64x8(CASE_CLEAR); - - for (; buf + 64 < buf_end; buf += 64) { - m512 data = load512(buf); - m512 v = and512(casemask, data); - u64a z = eq512mask(chars1, v) & (eq512mask(chars2, v) >> 1); - if ((buf[63] & CASE_CLEAR) == c1 && (buf[64] & CASE_CLEAR) == c2) { - z |= (1ULL << 63); - } - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - } - - return NULL; -} - -static really_inline -const u8 *dvermSearchAlignedMasked(m512 chars1, m512 chars2, - m512 mask1, m512 mask2, u8 c1, u8 c2, u8 m1, - u8 m2, const u8 *buf, const u8 *buf_end) { - assert((size_t)buf % 64 == 0); - - for (; buf + 64 < buf_end; buf += 64) { - m512 data = load512(buf); - m512 v1 = and512(data, mask1); - m512 v2 = and512(data, mask2); - u64a z = eq512mask(chars1, v1) & (eq512mask(chars2, v2) >> 1); - - if ((buf[63] & m1) == c1 && (buf[64] & m2) == c2) { - z |= (1ULL << 63); - } - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - } - - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *dvermPrecondition(m512 chars1, m512 chars2, const u8 *buf) { - m512 data = loadu512(buf); // unaligned - u64a z = eq512mask(chars1, data) & (eq512mask(chars2, data) >> 1); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *dvermPreconditionNocase(m512 chars1, m512 chars2, const u8 *buf) { - /* due to laziness, nonalphas and nocase having interesting behaviour */ - m512 casemask = set1_64x8(CASE_CLEAR); - m512 data = loadu512(buf); // unaligned - m512 v = and512(casemask, data); - u64a z = eq512mask(chars1, v) & (eq512mask(chars2, v) >> 1); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *dvermPreconditionMasked(m512 chars1, m512 chars2, - m512 mask1, m512 mask2, const u8 *buf) { - m512 data = loadu512(buf); // unaligned - m512 v1 = and512(data, mask1); - m512 v2 = and512(data, mask2); - u64a z = eq512mask(chars1, v1) & (eq512mask(chars2, v2) >> 1); - - /* no fixup of the boundary required - the aligned run will pick it up */ - if (unlikely(z)) { - u64a pos = ctz64(z); - return buf + pos; - } - return NULL; -} - -static really_inline -const u8 *lastMatchOffset(const u8 *buf_end, u64a z) { - assert(z); - return buf_end - 64 + 63 - clz64(z); -} - -static really_inline -const u8 *rvermMini(m512 chars, const u8 *buf, const u8 *buf_end, char negate) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - - u64a z = eq512mask(chars, data); - - if (negate) { - z = ~z & mask; - } - z &= mask; - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -static really_inline -const u8 *rvermMiniNocase(m512 chars, const u8 *buf, const u8 *buf_end, - char negate) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - m512 casemask = set1_64x8(CASE_CLEAR); - m512 v = and512(casemask, data); - - u64a z = eq512mask(chars, v); - - if (negate) { - z = ~z & mask; - } - z &= mask; - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -static really_inline -const u8 *rvermSearchAligned(m512 chars, const u8 *buf, const u8 *buf_end, - char negate) { - assert((size_t)buf_end % 64 == 0); - for (; buf + 63 < buf_end; buf_end -= 64) { - m512 data = load512(buf_end - 64); - u64a z = eq512mask(chars, data); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return lastMatchOffset(buf_end, z); - } - } - return NULL; -} - -static really_inline -const u8 *rvermSearchAlignedNocase(m512 chars, const u8 *buf, - const u8 *buf_end, char negate) { - assert((size_t)buf_end % 64 == 0); - m512 casemask = set1_64x8(CASE_CLEAR); - - for (; buf + 63 < buf_end; buf_end -= 64) { - m512 data = load512(buf_end - 64); - u64a z = eq512mask(chars, and512(casemask, data)); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return lastMatchOffset(buf_end, z); - } - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rvermUnalign(m512 chars, const u8 *buf, char negate) { - m512 data = loadu512(buf); // unaligned - u64a z = eq512mask(chars, data); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rvermUnalignNocase(m512 chars, const u8 *buf, char negate) { - m512 casemask = set1_64x8(CASE_CLEAR); - m512 data = loadu512(buf); // unaligned - u64a z = eq512mask(chars, and512(casemask, data)); - if (negate) { - z = ~z & ~0ULL; - } - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -static really_inline -const u8 *rdvermMini(m512 chars1, m512 chars2, const u8 *buf, - const u8 *buf_end) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - - u64a z = eq512mask(chars2, data) & (eq512mask(chars1, data) << 1); - - z &= mask; - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -static really_inline -const u8 *rdvermMiniNocase(m512 chars1, m512 chars2, const u8 *buf, - const u8 *buf_end) { - uintptr_t len = buf_end - buf; - __mmask64 mask = (~0ULL) >> (64 - len); - m512 data = loadu_maskz_m512(mask, buf); - m512 casemask = set1_64x8(CASE_CLEAR); - m512 v = and512(casemask, data); - - u64a z = eq512mask(chars2, v) & (eq512mask(chars1, v) << 1); - - z &= mask; - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - return NULL; -} - -static really_inline -const u8 *rdvermSearchAligned(m512 chars1, m512 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf_end % 64 == 0); - - for (; buf + 64 < buf_end; buf_end -= 64) { - m512 data = load512(buf_end - 64); - u64a z = eq512mask(chars2, data) & (eq512mask(chars1, data) << 1); - if (buf_end[-65] == c1 && buf_end[-64] == c2) { - z |= 1; - } - if (unlikely(z)) { - return lastMatchOffset(buf_end, z); - } - } - return buf_end; -} - -static really_inline -const u8 *rdvermSearchAlignedNocase(m512 chars1, m512 chars2, u8 c1, u8 c2, - const u8 *buf, const u8 *buf_end) { - assert((size_t)buf_end % 64 == 0); - m512 casemask = set1_64x8(CASE_CLEAR); - - for (; buf + 64 < buf_end; buf_end -= 64) { - m512 data = load512(buf_end - 64); - m512 v = and512(casemask, data); - u64a z = eq512mask(chars2, v) & (eq512mask(chars1, v) << 1); - if ((buf_end[-65] & CASE_CLEAR) == c1 - && (buf_end[-64] & CASE_CLEAR) == c2) { - z |= 1; - } - if (unlikely(z)) { - return lastMatchOffset(buf_end, z); - } - } - return buf_end; -} - -// returns NULL if not found -static really_inline -const u8 *rdvermPrecondition(m512 chars1, m512 chars2, const u8 *buf) { - m512 data = loadu512(buf); - u64a z = eq512mask(chars2, data) & (eq512mask(chars1, data) << 1); - - // no fixup of the boundary required - the aligned run will pick it up - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - - return NULL; -} - -// returns NULL if not found -static really_inline -const u8 *rdvermPreconditionNocase(m512 chars1, m512 chars2, const u8 *buf) { - // due to laziness, nonalphas and nocase having interesting behaviour - m512 casemask = set1_64x8(CASE_CLEAR); - m512 data = loadu512(buf); - m512 v = and512(casemask, data); - u64a z = eq512mask(chars2, v) & (eq512mask(chars1, v) << 1); - // no fixup of the boundary required - the aligned run will pick it up - if (unlikely(z)) { - return lastMatchOffset(buf + 64, z); - } - - return NULL; -} - -#endif // HAVE_AVX512 - -static really_inline -const u8 *vermicelliExec(char c, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("verm scan %s\\x%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars = VERM_SET_FN(c); /* nocase already uppercase */ - - // Handle small scans. -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? vermMiniNocase(chars, buf, buf_end, 0) - : vermMini(chars, buf, buf_end, 0); - if (ptr) { - return ptr; - } - return buf_end; - } -#else - if (buf_end - buf < VERM_BOUNDARY) { - for (; buf < buf_end; buf++) { - char cur = (char)*buf; - if (nocase) { - cur &= CASE_CLEAR; - } - if (cur == c) { - break; - } - } - return buf; - } -#endif - - uintptr_t min = (uintptr_t)buf % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf forward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *ptr = nocase ? vermUnalignNocase(chars, buf, 0) - : vermUnalign(chars, buf, 0); - if (ptr) { - return ptr; - } - - buf += VERM_BOUNDARY - min; - assert(buf < buf_end); - } - - // Aligned loops from here on in - const u8 *ptr = nocase ? vermSearchAlignedNocase(chars, buf, buf_end - 1, 0) - : vermSearchAligned(chars, buf, buf_end - 1, 0); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end - ptr = nocase ? vermUnalignNocase(chars, buf_end - VERM_BOUNDARY, 0) - : vermUnalign(chars, buf_end - VERM_BOUNDARY, 0); - return ptr ? ptr : buf_end; -} - -/* like vermicelliExec except returns the address of the first character which - * is not c */ -static really_inline -const u8 *nvermicelliExec(char c, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("nverm scan %s\\x%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars = VERM_SET_FN(c); /* nocase already uppercase */ - - // Handle small scans. -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? vermMiniNocase(chars, buf, buf_end, 1) - : vermMini(chars, buf, buf_end, 1); - if (ptr) { - return ptr; - } - return buf_end; - } -#else - if (buf_end - buf < VERM_BOUNDARY) { - for (; buf < buf_end; buf++) { - char cur = (char)*buf; - if (nocase) { - cur &= CASE_CLEAR; - } - if (cur != c) { - break; - } - } - return buf; - } -#endif - - size_t min = (size_t)buf % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf forward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *ptr = nocase ? vermUnalignNocase(chars, buf, 1) - : vermUnalign(chars, buf, 1); - if (ptr) { - return ptr; - } - - buf += VERM_BOUNDARY - min; - assert(buf < buf_end); - } - - // Aligned loops from here on in - const u8 *ptr = nocase ? vermSearchAlignedNocase(chars, buf, buf_end - 1, 1) - : vermSearchAligned(chars, buf, buf_end - 1, 1); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end - ptr = nocase ? vermUnalignNocase(chars, buf_end - VERM_BOUNDARY, 1) - : vermUnalign(chars, buf_end - VERM_BOUNDARY, 1); - return ptr ? ptr : buf_end; -} - -// Reverse vermicelli scan. Provides exact semantics and returns (buf - 1) if -// character not found. -static really_inline -const u8 *rvermicelliExec(char c, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("rev verm scan %s\\x%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars = VERM_SET_FN(c); /* nocase already uppercase */ - - // Handle small scans. -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? rvermMiniNocase(chars, buf, buf_end, 0) - : rvermMini(chars, buf, buf_end, 0); - if (ptr) { - return ptr; - } - return buf - 1; - } -#else - if (buf_end - buf < VERM_BOUNDARY) { - for (buf_end--; buf_end >= buf; buf_end--) { - char cur = (char)*buf_end; - if (nocase) { - cur &= CASE_CLEAR; - } - if (cur == c) { - break; - } - } - return buf_end; - } -#endif - - size_t min = (size_t)buf_end % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf backward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *ptr = nocase ? rvermUnalignNocase(chars, - buf_end - VERM_BOUNDARY, - 0) - : rvermUnalign(chars, buf_end - VERM_BOUNDARY, - 0); - - if (ptr) { - return ptr; - } - - buf_end -= min; - if (buf >= buf_end) { - return buf_end; - } - } - - // Aligned loops from here on in. - const u8 *ptr = nocase ? rvermSearchAlignedNocase(chars, buf, buf_end, 0) - : rvermSearchAligned(chars, buf, buf_end, 0); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end, return buf - 1 if not found. - ptr = nocase ? rvermUnalignNocase(chars, buf, 0) - : rvermUnalign(chars, buf, 0); - return ptr ? ptr : buf - 1; -} - -/* like rvermicelliExec except returns the address of the last character which - * is not c */ -static really_inline -const u8 *rnvermicelliExec(char c, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("rev verm scan %s\\x%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars = VERM_SET_FN(c); /* nocase already uppercase */ - - // Handle small scans. -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? rvermMiniNocase(chars, buf, buf_end, 1) - : rvermMini(chars, buf, buf_end, 1); - if (ptr) { - return ptr; - } - return buf - 1; - } -#else - if (buf_end - buf < VERM_BOUNDARY) { - for (buf_end--; buf_end >= buf; buf_end--) { - char cur = (char)*buf_end; - if (nocase) { - cur &= CASE_CLEAR; - } - if (cur != c) { - break; - } - } - return buf_end; - } -#endif - - size_t min = (size_t)buf_end % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf backward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *ptr = nocase ? rvermUnalignNocase(chars, - buf_end - VERM_BOUNDARY, - 1) - : rvermUnalign(chars, buf_end - VERM_BOUNDARY, - 1); - - if (ptr) { - return ptr; - } - - buf_end -= min; - if (buf >= buf_end) { - return buf_end; - } - } - - // Aligned loops from here on in. - const u8 *ptr = nocase ? rvermSearchAlignedNocase(chars, buf, buf_end, 1) - : rvermSearchAligned(chars, buf, buf_end, 1); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end, return buf - 1 if not found. - ptr = nocase ? rvermUnalignNocase(chars, buf, 1) - : rvermUnalign(chars, buf, 1); - return ptr ? ptr : buf - 1; -} - -static really_inline -const u8 *vermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("double verm scan %s\\x%02hhx%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c1, c2, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars1 = VERM_SET_FN(c1); /* nocase already uppercase */ - VERM_TYPE chars2 = VERM_SET_FN(c2); /* nocase already uppercase */ - -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? dvermMiniNocase(chars1, chars2, buf, buf_end) - : dvermMini(chars1, chars2, buf, buf_end); - if (ptr) { - return ptr; - } - - /* check for partial match at end */ - u8 mask = nocase ? CASE_CLEAR : 0xff; - if ((buf_end[-1] & mask) == (u8)c1) { - DEBUG_PRINTF("partial!!!\n"); - return buf_end - 1; - } - - return buf_end; - } -#endif - - assert((buf_end - buf) >= VERM_BOUNDARY); - uintptr_t min = (uintptr_t)buf % VERM_BOUNDARY; - if (min) { - // Input isn't aligned, so we need to run one iteration with an - // unaligned load, then skip buf forward to the next aligned address. - // There's some small overlap here, but we don't mind scanning it twice - // if we can do it quickly, do we? - const u8 *ptr = nocase - ? dvermPreconditionNocase(chars1, chars2, buf) - : dvermPrecondition(chars1, chars2, buf); - if (ptr) { - return ptr; - } - - buf += VERM_BOUNDARY - min; - assert(buf < buf_end); - } - - // Aligned loops from here on in - const u8 *ptr = nocase ? dvermSearchAlignedNocase(chars1, chars2, c1, c2, - buf, buf_end) - : dvermSearchAligned(chars1, chars2, c1, c2, buf, - buf_end); - if (ptr) { - return ptr; - } - - // Tidy up the mess at the end - ptr = nocase ? dvermPreconditionNocase(chars1, chars2, - buf_end - VERM_BOUNDARY) - : dvermPrecondition(chars1, chars2, buf_end - VERM_BOUNDARY); - - if (ptr) { - return ptr; - } - - /* check for partial match at end */ - u8 mask = nocase ? CASE_CLEAR : 0xff; - if ((buf_end[-1] & mask) == (u8)c1) { - DEBUG_PRINTF("partial!!!\n"); - return buf_end - 1; - } - - return buf_end; -} - -/* returns highest offset of c2 (NOTE: not c1) */ -static really_inline -const u8 *rvermicelliDoubleExec(char c1, char c2, char nocase, const u8 *buf, - const u8 *buf_end) { - DEBUG_PRINTF("rev double verm scan %s\\x%02hhx%02hhx over %zu bytes\n", - nocase ? "nocase " : "", c1, c2, (size_t)(buf_end - buf)); - assert(buf < buf_end); - - VERM_TYPE chars1 = VERM_SET_FN(c1); /* nocase already uppercase */ - VERM_TYPE chars2 = VERM_SET_FN(c2); /* nocase already uppercase */ - -#ifdef HAVE_AVX512 - if (buf_end - buf <= VERM_BOUNDARY) { - const u8 *ptr = nocase - ? rdvermMiniNocase(chars1, chars2, buf, buf_end) - : rdvermMini(chars1, chars2, buf, buf_end); - - if (ptr) { - return ptr; - } - - // check for partial match at end ??? - return buf - 1; - } -#endif - - assert((buf_end - buf) >= VERM_BOUNDARY); - size_t min = (size_t)buf_end % VERM_BOUNDARY; - if (min) { - // input not aligned, so we need to run one iteration with an unaligned - // load, then skip buf forward to the next aligned address. There's - // some small overlap here, but we don't mind scanning it twice if we - // can do it quickly, do we? - const u8 *ptr = nocase ? rdvermPreconditionNocase(chars1, chars2, - buf_end - VERM_BOUNDARY) - : rdvermPrecondition(chars1, chars2, - buf_end - VERM_BOUNDARY); - - if (ptr) { - return ptr; - } - - buf_end -= min; - if (buf >= buf_end) { - return buf_end; - } - } - - // Aligned loops from here on in - if (nocase) { - return rdvermSearchAlignedNocase(chars1, chars2, c1, c2, buf, buf_end); - } else { - return rdvermSearchAligned(chars1, chars2, c1, c2, buf, buf_end); - } -} \ No newline at end of file diff --git a/src/nfa/x86/shufti.hpp b/src/nfa/x86/shufti.hpp index 79ef7481..6fb34b2f 100644 --- a/src/nfa/x86/shufti.hpp +++ b/src/nfa/x86/shufti.hpp @@ -31,12 +31,6 @@ * \brief Shufti: character class acceleration. */ -#ifndef SHUFTI_SIMD_X86_HPP -#define SHUFTI_SIMD_X86_HPP - -#include "util/supervector/supervector.hpp" -#include "util/match.hpp" - template static really_inline const SuperVector blockSingleMask(SuperVector mask_lo, SuperVector mask_hi, SuperVector chars) { @@ -44,12 +38,10 @@ const SuperVector blockSingleMask(SuperVector mask_lo, SuperVector mask SuperVector c_lo = chars & low4bits; SuperVector c_hi = chars.template vshr_64_imm<4>() & low4bits; - c_lo = mask_lo.template pshufb(c_lo); - c_hi = mask_hi.template pshufb(c_hi); + c_lo = mask_lo.pshufb(c_lo); + c_hi = mask_hi.pshufb(c_hi); - SuperVector c = c_lo & c_hi; - - return c.eq(SuperVector::Zeroes()); + return (c_lo & c_hi).eq(SuperVector::Zeroes()); } template @@ -80,5 +72,3 @@ SuperVector blockDoubleMask(SuperVector mask1_lo, SuperVector mask1_hi, return c.eq(SuperVector::Ones()); } - -#endif // SHUFTI_SIMD_X86_HPP diff --git a/src/nfa/x86/vermicelli.hpp b/src/nfa/x86/vermicelli.hpp new file mode 100644 index 00000000..8b461dfe --- /dev/null +++ b/src/nfa/x86/vermicelli.hpp @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2015-2020, Intel Corporation + * Copyright (c) 2020-2021, VectorCamp PC + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/** \file + * \brief Vermicelli: single-byte and double-byte acceleration. + */ + +template +static really_inline +const u8 *vermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = chars.eq(casemask & data); + return first_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = chars.eq(casemask & data); + return first_zero_match_inverted(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliBlock(SuperVector const data, SuperVector const chars, SuperVector const casemask, u8 const *buf, u16 const len) { + + SuperVector mask = chars.eq(casemask & data); + return last_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliBlockNeg(SuperVector const data, SuperVector const chars, SuperVector const casemask, const u8 *buf, u16 const len) { + + data.print8("data"); + chars.print8("chars"); + casemask.print8("casemask"); + SuperVector mask = chars.eq(casemask & data); + mask.print8("mask"); + return last_zero_match_inverted(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len) { + + SuperVector v = casemask & data; + SuperVector mask1 = chars1.eq(v); + SuperVector mask2 = chars2.eq(v); + SuperVector mask = mask1 & (mask2 >> 1); + + DEBUG_PRINTF("rv[0] = %02hhx, rv[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & casechar) == c2) && ((buf[-1] & casechar) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) return buf - 1; + + return first_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *rvermicelliDoubleBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, SuperVector const casemask, + u8 const c1, u8 const c2, u8 const casechar, u8 const *buf, u16 const len) { + + SuperVector v = casemask & data; + SuperVector mask1 = chars1.eq(v); + SuperVector mask2 = chars2.eq(v); + SuperVector mask = (mask1 << 1)& mask2; + + DEBUG_PRINTF("buf[0] = %02hhx, buf[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & casechar) == c2) && ((buf[-1] & casechar) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) { + mask = mask | (SuperVector::Ones() >> (S-1)); + } + + return last_non_zero_match(buf, mask, len); +} + +template +static really_inline +const u8 *vermicelliDoubleMaskedBlock(SuperVector const data, SuperVector const chars1, SuperVector const chars2, + SuperVector const mask1, SuperVector const mask2, + u8 const c1, u8 const c2, u8 const m1, u8 const m2, u8 const *buf, u16 const len) { + + SuperVector v1 = chars1.eq(data & mask1); + SuperVector v2 = chars2.eq(data & mask2); + SuperVector mask = v1 & (v2 >> 1); + + DEBUG_PRINTF("rv[0] = %02hhx, rv[-1] = %02hhx\n", buf[0], buf[-1]); + bool partial_match = (((buf[0] & m1) == c2) && ((buf[-1] & m2) == c1)); + DEBUG_PRINTF("partial = %d\n", partial_match); + if (partial_match) return buf - 1; + + return first_non_zero_match(buf, mask, len); +} + diff --git a/src/util/arch/arm/match.hpp b/src/util/arch/arm/match.hpp index e7f757bd..892c3877 100644 --- a/src/util/arch/arm/match.hpp +++ b/src/util/arch/arm/match.hpp @@ -29,7 +29,44 @@ template <> really_really_inline -const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> mask) { +const u8 *first_non_zero_match<16>(const u8 *buf, SuperVector<16> mask, u16 const UNUSED len) { + uint32x4_t m = mask.u.u32x4[0]; + uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0); + if (vmax != 0) { + typename SuperVector<16>::movemask_type z = mask.movemask(); + DEBUG_PRINTF("z %08x\n", z); + DEBUG_PRINTF("buf %p z %08x \n", buf, z); + u32 pos = ctz32(z & 0xffff); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos < 16); + DEBUG_PRINTF("buf + pos %p\n", buf + pos); + return buf + pos; + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *last_non_zero_match<16>(const u8 *buf, SuperVector<16> mask, u16 const UNUSED len) { + uint32x4_t m = mask.u.u32x4[0]; + uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0); + if (vmax != 0) { + typename SuperVector<16>::movemask_type z = mask.movemask(); + DEBUG_PRINTF("buf %p z %08x \n", buf, z); + DEBUG_PRINTF("z %08x\n", z); + u32 pos = clz32(z & 0xffff); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos >= 16 && pos < 32); + return buf + (31 - pos); + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *first_zero_match_inverted<16>(const u8 *buf, SuperVector<16> mask, u16 const UNUSED len) { uint32x4_t m = mask.u.u32x4[0]; uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0); if (vmax != 0) { @@ -48,7 +85,7 @@ const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> mask) { template <> really_really_inline -const u8 *lastMatch<16>(const u8 *buf, SuperVector<16> mask) { +const u8 *last_zero_match_inverted<16>(const u8 *buf, SuperVector<16> mask, u16 const UNUSED len) { uint32x4_t m = mask.u.u32x4[0]; uint64_t vmax = vgetq_lane_u64 (vreinterpretq_u64_u32 (vpmaxq_u32(m, m)), 0); if (vmax != 0) { diff --git a/src/util/arch/x86/match.hpp b/src/util/arch/x86/match.hpp index 159f7355..cbf4ab6b 100644 --- a/src/util/arch/x86/match.hpp +++ b/src/util/arch/x86/match.hpp @@ -29,7 +29,106 @@ template <> really_really_inline -const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> v) { +const u8 *first_non_zero_match<16>(const u8 *buf, SuperVector<16> v, u16 const UNUSED len) { + SuperVector<16>::movemask_type z = v.movemask(); + DEBUG_PRINTF("buf %p z %08x \n", buf, z); + DEBUG_PRINTF("z %08x\n", z); + if (unlikely(z)) { + u32 pos = ctz32(z); + DEBUG_PRINTF("~z %08x\n", ~z); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos < 16); + return buf + pos; + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *first_non_zero_match<32>(const u8 *buf, SuperVector<32> v, u16 const UNUSED len) { + SuperVector<32>::movemask_type z = v.movemask(); + DEBUG_PRINTF("z 0x%08x\n", z); + if (unlikely(z)) { + u32 pos = ctz32(z); + assert(pos < 32); + DEBUG_PRINTF("match @ pos %u\n", pos); + return buf + pos; + } else { + return NULL; // no match + } +} +template <> +really_really_inline +const u8 *first_non_zero_match<64>(const u8 *buf, SuperVector<64>v, u16 const len) { + SuperVector<64>::movemask_type z = v.movemask(); + DEBUG_PRINTF("z 0x%016llx\n", z); + u64a mask = (~0ULL) >> (64 - len); + DEBUG_PRINTF("mask %016llx\n", mask); + z &= mask; + DEBUG_PRINTF("z 0x%016llx\n", z); + if (unlikely(z)) { + u32 pos = ctz64(z); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos < 64); + return buf + pos; + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *last_non_zero_match<16>(const u8 *buf, SuperVector<16> v, u16 const UNUSED len) { + SuperVector<16>::movemask_type z = v.movemask(); + DEBUG_PRINTF("buf %p z %08x \n", buf, z); + DEBUG_PRINTF("z %08x\n", z); + if (unlikely(z)) { + u32 pos = clz32(z); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos >= 16 && pos < 32); + return buf + (31 - pos); + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *last_non_zero_match<32>(const u8 *buf, SuperVector<32> v, u16 const UNUSED len) { + SuperVector<32>::movemask_type z = v.movemask(); + DEBUG_PRINTF("z 0x%08x\n", z); + if (unlikely(z)) { + u32 pos = clz32(z); + assert(pos < 32); + DEBUG_PRINTF("match @ pos %u\n", pos); + return buf + (31 - pos); + } else { + return NULL; // no match + } +} +template <> +really_really_inline +const u8 *last_non_zero_match<64>(const u8 *buf, SuperVector<64>v, u16 const len) { + SuperVector<64>::movemask_type z = v.movemask(); + DEBUG_PRINTF("z 0x%016llx\n", z); + u64a mask = (~0ULL) >> (64 - len); + DEBUG_PRINTF("mask %016llx\n", mask); + z &= mask; + DEBUG_PRINTF("z 0x%016llx\n", z); + if (unlikely(z)) { + u32 pos = clz64(z); + DEBUG_PRINTF("match @ pos %u\n", pos); + assert(pos < 64); + return buf + (63 - pos); + } else { + return NULL; // no match + } +} + +template <> +really_really_inline +const u8 *first_zero_match_inverted<16>(const u8 *buf, SuperVector<16> v, u16 const UNUSED len) { SuperVector<16>::movemask_type z = v.movemask(); DEBUG_PRINTF("buf %p z %08x \n", buf, z); DEBUG_PRINTF("z %08x\n", z); @@ -46,7 +145,7 @@ const u8 *firstMatch<16>(const u8 *buf, SuperVector<16> v) { template <> really_really_inline -const u8 *firstMatch<32>(const u8 *buf, SuperVector<32> v) { +const u8 *first_zero_match_inverted<32>(const u8 *buf, SuperVector<32> v, u16 const UNUSED len) { SuperVector<32>::movemask_type z = v.movemask(); DEBUG_PRINTF("z 0x%08x\n", z); if (unlikely(z != 0xffffffff)) { @@ -60,11 +159,15 @@ const u8 *firstMatch<32>(const u8 *buf, SuperVector<32> v) { } template <> really_really_inline -const u8 *firstMatch<64>(const u8 *buf, SuperVector<64>v) { +const u8 *first_zero_match_inverted<64>(const u8 *buf, SuperVector<64>v, u16 const len) { SuperVector<64>::movemask_type z = v.movemask(); DEBUG_PRINTF("z 0x%016llx\n", z); - if (unlikely(z != ~0ULL)) { - u32 pos = ctz64(~z); + u64a mask = (~0ULL) >> (64 - len); + DEBUG_PRINTF("mask %016llx\n", mask); + z = ~z & mask; + DEBUG_PRINTF("z 0x%016llx\n", z); + if (unlikely(z)) { + u32 pos = ctz64(z); DEBUG_PRINTF("match @ pos %u\n", pos); assert(pos < 64); return buf + pos; @@ -75,7 +178,7 @@ const u8 *firstMatch<64>(const u8 *buf, SuperVector<64>v) { template <> really_really_inline -const u8 *lastMatch<16>(const u8 *buf, SuperVector<16> v) { +const u8 *last_zero_match_inverted<16>(const u8 *buf, SuperVector<16> v, uint16_t UNUSED len ) { SuperVector<16>::movemask_type z = v.movemask(); DEBUG_PRINTF("buf %p z %08x \n", buf, z); DEBUG_PRINTF("z %08x\n", z); @@ -92,10 +195,10 @@ const u8 *lastMatch<16>(const u8 *buf, SuperVector<16> v) { template<> really_really_inline -const u8 *lastMatch<32>(const u8 *buf, SuperVector<32> v) { +const u8 *last_zero_match_inverted<32>(const u8 *buf, SuperVector<32> v, uint16_t UNUSED len) { SuperVector<32>::movemask_type z = v.movemask(); if (unlikely(z != 0xffffffff)) { - u32 pos = clz32(~z); + u32 pos = clz32(~z & 0xffffffff); DEBUG_PRINTF("buf=%p, pos=%u\n", buf, pos); assert(pos < 32); return buf + (31 - pos); @@ -106,11 +209,17 @@ const u8 *lastMatch<32>(const u8 *buf, SuperVector<32> v) { template <> really_really_inline -const u8 *lastMatch<64>(const u8 *buf, SuperVector<64> v) { +const u8 *last_zero_match_inverted<64>(const u8 *buf, SuperVector<64> v, uint16_t len) { + v.print8("v"); SuperVector<64>::movemask_type z = v.movemask(); DEBUG_PRINTF("z 0x%016llx\n", z); - if (unlikely(z != ~0ULL)) { - u32 pos = clz64(~z); + u64a mask = (~0ULL) >> (64 - len); + DEBUG_PRINTF("mask %016llx\n", mask); + z = ~z & mask; + DEBUG_PRINTF("z 0x%016llx\n", z); + if (unlikely(z)) { + u32 pos = clz64(z); + DEBUG_PRINTF("~z 0x%016llx\n", ~z); DEBUG_PRINTF("match @ pos %u\n", pos); assert(pos < 64); return buf + (63 - pos); diff --git a/src/util/match.hpp b/src/util/match.hpp index 9331d1f8..030db9bb 100644 --- a/src/util/match.hpp +++ b/src/util/match.hpp @@ -38,10 +38,16 @@ #include "util/supervector/supervector.hpp" template -const u8 *firstMatch(const u8 *buf, SuperVector v); +const u8 *first_non_zero_match(const u8 *buf, SuperVector v, u16 const len = S); template -const u8 *lastMatch(const u8 *buf, SuperVector v); +const u8 *last_non_zero_match(const u8 *buf, SuperVector v, u16 const len = S); + +template +const u8 *first_zero_match_inverted(const u8 *buf, SuperVector v, u16 const len = S); + +template +const u8 *last_zero_match_inverted(const u8 *buf, SuperVector v, u16 len = S); #if defined(ARCH_IA32) || defined(ARCH_X86_64) #include "util/arch/x86/match.hpp" diff --git a/src/util/supervector/casemask.hpp b/src/util/supervector/casemask.hpp new file mode 100644 index 00000000..10fa5f1a --- /dev/null +++ b/src/util/supervector/casemask.hpp @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2017, Intel Corporation + * Copyright (c) 2020-2021, VectorCamp PC + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CASEMASK_HPP +#define CASEMASK_HPP + +#include "util/supervector/supervector.hpp" + +static u8 CASEMASK[] = { 0xff, 0xdf }; + +static really_inline +u8 caseClear8(u8 x, bool noCase) +{ + return static_cast(x & CASEMASK[(u8)noCase]); +} + +template +static really_inline SuperVector getMask(u8 c, bool noCase) { + u8 k = caseClear8(c, noCase); + return SuperVector(k); +} + +template +static really_inline SuperVector getCaseMask(void) { + return SuperVector(CASEMASK[1]); +} + +#endif // CASEMASK_HPP \ No newline at end of file diff --git a/unit/internal/rvermicelli.cpp b/unit/internal/rvermicelli.cpp index d89067d0..5cd52e4d 100644 --- a/unit/internal/rvermicelli.cpp +++ b/unit/internal/rvermicelli.cpp @@ -30,7 +30,7 @@ #include "config.h" #include "gtest/gtest.h" -#include "nfa/vermicelli.h" +#include "nfa/vermicelli.hpp" #define BOUND (~(VERM_BOUNDARY - 1)) @@ -563,4 +563,4 @@ TEST(RNVermicelli16, Exec5) { } } -#endif // HAVE_SVE2 \ No newline at end of file +#endif // HAVE_SVE2 diff --git a/unit/internal/vermicelli.cpp b/unit/internal/vermicelli.cpp index dc458cb9..e6d976ad 100644 --- a/unit/internal/vermicelli.cpp +++ b/unit/internal/vermicelli.cpp @@ -30,7 +30,7 @@ #include "config.h" #include "gtest/gtest.h" -#include "nfa/vermicelli.h" +#include "nfa/vermicelli.hpp" TEST(Vermicelli, ExecNoMatch1) { char t1[] = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"; @@ -1150,4 +1150,4 @@ TEST(DoubleVermicelliMasked16, Exec5) { } } -#endif // HAVE_SVE2 \ No newline at end of file +#endif // HAVE_SVE2