src/nfa/multishufti_avx2.h
src/nfa/multishufti_sse.h
src/nfa/multishufti.h
+ src/nfa/multitruffle.c
+ src/nfa/multitruffle_avx2.h
+ src/nfa/multitruffle_sse.h
+ src/nfa/multitruffle.h
src/nfa/multivermicelli.c
src/nfa/multivermicelli.h
src/nfa/multivermicelli_sse.h
src/nfa/shufti_common.h
src/nfa/shufti.c
src/nfa/shufti.h
+ src/nfa/truffle_common.h
src/nfa/truffle.c
src/nfa/truffle.h
src/nfa/vermicelli.h
#include "truffle.h"
#include "vermicelli.h"
#include "multishufti.h"
+#include "multitruffle.h"
#include "multivermicelli.h"
#include "ue2common.h"
rv = doubleshiftgrab_shuftiExec(accel->mdshufti.lo, accel->mdshufti.hi, c, c_end,
accel->mdshufti.len1, accel->mdshufti.len2);
break;
+ case ACCEL_MLTRUFFLE:
+ DEBUG_PRINTF("accel mltruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = long_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
+ c, c_end, accel->mtruffle.len);
+ break;
+ case ACCEL_MLGTRUFFLE:
+ DEBUG_PRINTF("accel mlgtruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = longgrab_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
+ c, c_end, accel->mtruffle.len);
+ break;
+ case ACCEL_MSTRUFFLE:
+ DEBUG_PRINTF("accel mstruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = shift_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
+ c, c_end, accel->mtruffle.len);
+ break;
+ case ACCEL_MSGTRUFFLE:
+ DEBUG_PRINTF("accel msgtruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = shiftgrab_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
+ c, c_end, accel->mtruffle.len);
+ break;
+ case ACCEL_MDSTRUFFLE:
+ DEBUG_PRINTF("accel mdstruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = doubleshift_truffleExec(accel->mdtruffle.mask1,
+ accel->mdtruffle.mask2, c, c_end,
+ accel->mdtruffle.len1,
+ accel->mdtruffle.len2);
+ break;
+ case ACCEL_MDSGTRUFFLE:
+ DEBUG_PRINTF("accel mdsgtruffle %p %p\n", c, c_end);
+ if (c + 15 >= c_end) {
+ return c;
+ }
+
+ rv = doubleshiftgrab_truffleExec(accel->mdtruffle.mask1,
+ accel->mdtruffle.mask2, c, c_end,
+ accel->mdtruffle.len1,
+ accel->mdtruffle.len2);
+ break;
+
default:
assert(!"not here");
ACCEL_MSGSHUFTI,
ACCEL_MDSSHUFTI,
ACCEL_MDSGSHUFTI,
+ /* multibyte truffles */
+ ACCEL_MLTRUFFLE,
+ ACCEL_MLGTRUFFLE,
+ ACCEL_MSTRUFFLE,
+ ACCEL_MSGTRUFFLE,
+ ACCEL_MDSTRUFFLE,
+ ACCEL_MDSGTRUFFLE
};
/** \brief Structure for accel framework. */
m128 mask1;
m128 mask2;
} truffle;
+ struct {
+ u8 accel_type;
+ u8 offset;
+ m128 mask1;
+ m128 mask2;
+ u8 len;
+ } mtruffle;
+ struct {
+ u8 accel_type;
+ u8 offset;
+ m128 mask1;
+ m128 mask2;
+ u8 len1;
+ u8 len2;
+ } mdtruffle;
};
/**
return "multibyte doubleshift shufti";
case ACCEL_MDSGSHUFTI:
return "multibyte doubleshift-grab shufti";
+ case ACCEL_MLTRUFFLE:
+ return "multibyte long truffle";
+ case ACCEL_MLGTRUFFLE:
+ return "multibyte long-grab truffle";
+ case ACCEL_MSTRUFFLE:
+ return "multibyte shift truffle";
+ case ACCEL_MSGTRUFFLE:
+ return "multibyte shift-grab truffle";
+ case ACCEL_MDSTRUFFLE:
+ return "multibyte doubleshift truffle";
+ case ACCEL_MDSGTRUFFLE:
+ return "multibyte doubleshift-grab truffle";
default:
return "unknown!";
}
dumpMask((const u8 *)&hi, 128).c_str());
}
+static
+void dumpTruffleCharReach(FILE *f, const m128 &hiset, const m128 &hiclear) {
+ CharReach cr = truffle2cr(hiset, hiclear);
+ fprintf(f, "count %zu class %s\n", cr.count(),
+ describeClass(cr).c_str());
+}
+
+static
+void dumpTruffleMasks(FILE *f, const m128 &hiset, const m128 &hiclear) {
+ fprintf(f, "lo %s\n",
+ dumpMask((const u8 *)&hiset, 128).c_str());
+ fprintf(f, "hi %s\n",
+ dumpMask((const u8 *)&hiclear, 128).c_str());
+}
+
+
void dumpAccelInfo(FILE *f, const AccelAux &accel) {
fprintf(f, " %s", accelName(accel.accel_type));
if (accel.generic.offset) {
break;
case ACCEL_TRUFFLE: {
fprintf(f, "\n");
- fprintf(f, "lo %s\n",
- dumpMask((const u8 *)&accel.truffle.mask1, 128).c_str());
- fprintf(f, "hi %s\n",
- dumpMask((const u8 *)&accel.truffle.mask2, 128).c_str());
- CharReach cr = truffle2cr(accel.truffle.mask1, accel.truffle.mask2);
- fprintf(f, "count %zu class %s\n", cr.count(),
- describeClass(cr).c_str());
+ dumpTruffleMasks(f, accel.truffle.mask1, accel.truffle.mask2);
+ dumpTruffleCharReach(f, accel.truffle.mask1, accel.truffle.mask2);
break;
}
case ACCEL_MLVERM:
dumpShuftiMasks(f, accel.mdshufti.lo, accel.mdshufti.hi);
dumpShuftiCharReach(f, accel.mdshufti.lo, accel.mdshufti.hi);
break;
+ case ACCEL_MLTRUFFLE:
+ case ACCEL_MLGTRUFFLE:
+ case ACCEL_MSTRUFFLE:
+ case ACCEL_MSGTRUFFLE:
+ fprintf(f, " len:%u\n", accel.mtruffle.len);
+ dumpTruffleMasks(f, accel.mtruffle.mask1, accel.mtruffle.mask2);
+ dumpTruffleCharReach(f, accel.mtruffle.mask1, accel.mtruffle.mask2);
+ break;
+ case ACCEL_MDSTRUFFLE:
+ case ACCEL_MDSGTRUFFLE:
+ fprintf(f, " len1:%u len2:%u\n", accel.mdtruffle.len1, accel.mdtruffle.len2);
+ dumpTruffleMasks(f, accel.mdtruffle.mask1, accel.mdtruffle.mask2);
+ dumpTruffleCharReach(f, accel.mdtruffle.mask1, accel.mdtruffle.mask2);
+ break;
default:
fprintf(f, "\n");
break;
#include "shufti.h"
#include "truffle.h"
#include "multishufti.h"
+#include "multitruffle.h"
#include "multivermicelli.h"
#include "ue2common.h"
#include "vermicelli.h"
offset = aux->truffle.offset;
ptr = truffleExec(aux->truffle.mask1, aux->truffle.mask2, ptr, end);
break;
+ case ACCEL_MLTRUFFLE:
+ DEBUG_PRINTF("long match truffle shuffle\n");
+ offset = aux->mtruffle.offset;
+ ptr = long_truffleExec(aux->mtruffle.mask1, aux->mtruffle.mask2,
+ ptr, end, aux->mtruffle.len);
+ break;
+ case ACCEL_MLGTRUFFLE:
+ DEBUG_PRINTF("long grab match truffle shuffle\n");
+ offset = aux->mtruffle.offset;
+ ptr = longgrab_truffleExec(aux->mtruffle.mask1, aux->mtruffle.mask2,
+ ptr, end, aux->mtruffle.len);
+ break;
+ case ACCEL_MSTRUFFLE:
+ DEBUG_PRINTF("shift match truffle shuffle\n");
+ offset = aux->mtruffle.offset;
+ ptr = shift_truffleExec(aux->mtruffle.mask1, aux->mtruffle.mask2,
+ ptr, end, aux->mtruffle.len);
+ break;
+ case ACCEL_MSGTRUFFLE:
+ DEBUG_PRINTF("shift grab match truffle shuffle\n");
+ offset = aux->mtruffle.offset;
+ ptr = shiftgrab_truffleExec(aux->mtruffle.mask1, aux->mtruffle.mask2,
+ ptr, end, aux->mtruffle.len);
+ break;
+ case ACCEL_MDSTRUFFLE:
+ DEBUG_PRINTF("double shift match truffle shuffle\n");
+ offset = aux->mdtruffle.offset;
+ ptr = doubleshift_truffleExec(aux->mdtruffle.mask1,
+ aux->mdtruffle.mask2, ptr, end,
+ aux->mdtruffle.len1,
+ aux->mdtruffle.len2);
+ break;
+ case ACCEL_MDSGTRUFFLE:
+ DEBUG_PRINTF("double shift grab match truffle shuffle\n");
+ offset = aux->mdtruffle.offset;
+ ptr = doubleshiftgrab_truffleExec(aux->mdtruffle.mask1,
+ aux->mdtruffle.mask2, ptr, end,
+ aux->mdtruffle.len1,
+ aux->mdtruffle.len2);
+ break;
case ACCEL_RED_TAPE:
ptr = end; /* there is no escape */
offset = aux->generic.offset;
--- /dev/null
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "ue2common.h"
+
+#include "multitruffle.h"
+#include "util/bitutils.h"
+#include "util/simd_utils.h"
+#include "util/simd_utils_ssse3.h"
+
+#include "multiaccel_common.h"
+
+#if !defined(__AVX2__)
+
+#define MATCH_ALGO long_
+#include "multiaccel_long.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO longgrab_
+#include "multiaccel_longgrab.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO shift_
+#include "multiaccel_shift.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO shiftgrab_
+#include "multiaccel_shiftgrab.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#define MULTIACCEL_DOUBLE
+
+#define MATCH_ALGO doubleshift_
+#include "multiaccel_doubleshift.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO doubleshiftgrab_
+#include "multiaccel_doubleshiftgrab.h"
+#include "multitruffle_sse.h"
+#undef MATCH_ALGO
+
+#undef MULTIACCEL_DOUBLE
+
+#else
+
+#define MATCH_ALGO long_
+#include "multiaccel_long.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO longgrab_
+#include "multiaccel_longgrab.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO shift_
+#include "multiaccel_shift.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO shiftgrab_
+#include "multiaccel_shiftgrab.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#define MULTIACCEL_DOUBLE
+
+#define MATCH_ALGO doubleshift_
+#include "multiaccel_doubleshift.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#define MATCH_ALGO doubleshiftgrab_
+#include "multiaccel_doubleshiftgrab.h"
+#include "multitruffle_avx2.h"
+#undef MATCH_ALGO
+
+#undef MULTIACCEL_DOUBLE
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * 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 MULTITRUFFLE_H
+#define MULTITRUFFLE_H
+
+/** \file
+ * \brief Multitruffle: multibyte version of Truffle.
+ *
+ * Utilises the SSSE3 pshufb shuffle instruction
+ */
+
+#include "util/simd_types.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+const u8 *long_truffleExec(m128 shuf_mask_lo_highclear, m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end, const u8 run_len);
+
+const u8 *longgrab_truffleExec(m128 shuf_mask_lo_highclear, m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end, const u8 run_len);
+
+const u8 *shift_truffleExec(m128 shuf_mask_lo_highclear, m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end, const u8 run_len);
+
+const u8 *shiftgrab_truffleExec(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset, const u8 *buf,
+ const u8 *buf_end, const u8 run_len);
+
+const u8 *doubleshift_truffleExec(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset, const u8 *buf,
+ const u8 *buf_end, const u8 run_len,
+ const u8 run2_len);
+
+const u8 *doubleshiftgrab_truffleExec(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset, const u8 *buf,
+ const u8 *buf_end, const u8 run_len,
+ const u8 run2_len);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* MULTITRUFFLE_H */
--- /dev/null
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * 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.
+ */
+
+/*
+ * Matches a byte in a charclass using three shuffles
+ */
+
+#include "config.h"
+#include "ue2common.h"
+#include "multiaccel_common.h"
+
+/*
+ * include "block" function
+ */
+#include "truffle_common.h"
+
+/*
+ * single-byte truffle fwd match function, should only be defined when not
+ * compiling multiaccel
+ */
+static really_inline
+const u8 *JOIN(MATCH_ALGO, fwdBlock)(m256 shuf_mask_lo_highclear, m256 shuf_mask_lo_highset,
+ m256 v, const u8 *buf, const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ u64a z = (u64a) block(shuf_mask_lo_highclear, shuf_mask_lo_highset, v);
+ return (*JOIN4(MATCH_ALGO, match_funcs, _, 64)[run_len])(buf, z ^ 0xFFFFFFFF
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+}
+
+const u8 *JOIN(MATCH_ALGO, truffleExec)(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end, const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ DEBUG_PRINTF("run_len %zu\n", buf_end - buf);
+ const m256 wide_clear = set2x128(shuf_mask_lo_highclear);
+ const m256 wide_set = set2x128(shuf_mask_lo_highset);
+
+ assert(buf && buf_end);
+ assert(buf < buf_end);
+ const u8 *rv;
+
+ if (buf_end - buf < 32) {
+ return truffleMini(wide_clear, wide_set, buf, buf_end);
+ }
+
+ size_t min = (size_t)buf % 32;
+ assert(buf_end - buf >= 32);
+
+ // Preconditioning: most of the time our buffer won't be aligned.
+ m256 chars = loadu256(buf);
+ rv = JOIN(MATCH_ALGO, fwdBlock)(wide_clear, wide_set, chars, buf, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (rv) {
+ return rv;
+ }
+ buf += (32 - min);
+
+ const u8 *last_block = buf_end - 32;
+ while (buf < last_block) {
+ m256 lchars = load256(buf);
+ rv = JOIN(MATCH_ALGO, fwdBlock)(wide_clear, wide_set, lchars,
+ buf, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (rv) {
+ return rv;
+ }
+ buf += 32;
+ }
+
+ // Use an unaligned load to mop up the last 32 bytes and get an accurate
+ // picture to buf_end.
+ assert(buf <= buf_end && buf >= buf_end - 32);
+ chars = loadu256(buf_end - 32);
+ rv = JOIN(MATCH_ALGO, fwdBlock)(wide_clear, wide_set, chars,
+ buf_end - 32, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (rv) {
+ return rv;
+ }
+
+ return buf_end;
+}
--- /dev/null
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "ue2common.h"
+#include "multiaccel_common.h"
+
+/*
+ * include "block" function
+ */
+#include "truffle_common.h"
+
+/*
+ * single-byte truffle fwd match function, should only be defined when not
+ * compiling multiaccel
+ */
+
+static really_inline
+const u8 *JOIN(MATCH_ALGO, fwdBlock)(m128 shuf_mask_lo_highclear, m128 shuf_mask_lo_highset,
+ m128 v, const u8 *buf, const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ u32 z = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, v) ^ 0xFFFF;
+ return (*JOIN4(MATCH_ALGO, match_funcs, _, 32)[run_len])(buf, z
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+}
+
+/*
+ * 16-byte pipeline, for smaller scans
+ */
+static
+const u8 *JOIN(MATCH_ALGO, trufflePipeline16)(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end,
+ const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ const u8* ptr, *last_buf;
+ u32 last_res;
+
+ // pipeline prologue: scan first 16 bytes
+ m128 data = load128(buf);
+ u32 z = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data) ^ 0xFFFF;
+ last_buf = buf;
+ last_res = z;
+ buf += 16;
+
+ // now, start the pipeline!
+ assert((size_t)buf % 16 == 0);
+ for (; buf + 15 < buf_end; buf += 16) {
+ // scan more data
+ data = load128(buf);
+ z = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data) ^ 0xFFFF;
+
+ // do a comparison on previous result
+ ptr = (*JOIN4(MATCH_ALGO, match_funcs, _, 32)[run_len])
+ (last_buf, last_res
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(ptr)) {
+ return ptr;
+ }
+ last_buf = buf;
+ last_res = z;
+ }
+ assert(buf <= buf_end && buf >= buf_end - 16);
+
+ // epilogue: compare final results
+ ptr = (*JOIN4(MATCH_ALGO, match_funcs, _, 32)[run_len])
+ (last_buf, last_res
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(ptr)) {
+ return ptr;
+ }
+
+ return NULL;
+}
+
+/*
+ * 32-byte pipeline, for bigger scans
+ */
+static
+const u8 *JOIN(MATCH_ALGO, trufflePipeline32)(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end,
+ const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ const u8* ptr, *last_buf;
+ u32 res;
+
+ // pipeline prologue: scan first 32 bytes
+ m128 data1 = load128(buf);
+ u32 z1 = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data1) ^ 0xFFFF;
+ m128 data2 = load128(buf + 16);
+ u32 z2 = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data2) ^ 0xFFFF;
+
+ // store the results
+ u32 last_res = z1 | (z2 << 16);
+ last_buf = buf;
+ buf += 32;
+
+
+ // now, start the pipeline!
+ assert((size_t)buf % 16 == 0);
+ for (; buf + 31 < buf_end; buf += 32) {
+ // scan more data
+ data1 = load128(buf);
+ z1 = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data1) ^ 0xFFFF;
+ data2 = load128(buf + 16);
+ z2 = block(shuf_mask_lo_highclear, shuf_mask_lo_highset, data2) ^ 0xFFFF;
+ res = z1 | (z2 << 16);
+
+ // do a comparison on previous result
+ ptr = (*JOIN4(MATCH_ALGO, match_funcs, _, 64)[run_len])
+ (last_buf, last_res
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(ptr)) {
+ return ptr;
+ }
+ last_res = res;
+ last_buf = buf;
+ }
+
+ // epilogue: compare final results
+ ptr = (*JOIN4(MATCH_ALGO, match_funcs, _, 64)[run_len])
+ (last_buf, last_res
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(ptr)) {
+ return ptr;
+ }
+
+ // if we still have some data left, scan it too
+ for (; buf + 15 < buf_end; buf += 16) {
+ m128 chars = load128(buf);
+ ptr = JOIN(MATCH_ALGO, fwdBlock)(shuf_mask_lo_highclear, shuf_mask_lo_highset,
+ chars, buf, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(ptr)) {
+ return ptr;
+ }
+ }
+ assert(buf <= buf_end && buf >= buf_end - 16);
+
+ return NULL;
+}
+
+const u8 *JOIN(MATCH_ALGO, truffleExec)(m128 shuf_mask_lo_highclear,
+ m128 shuf_mask_lo_highset,
+ const u8 *buf, const u8 *buf_end, const u8 run_len
+#ifdef MULTIACCEL_DOUBLE
+ , const u8 run_len2
+#endif
+ ) {
+ DEBUG_PRINTF("run_len %zu\n", buf_end - buf);
+
+ assert(buf && buf_end);
+ assert(buf < buf_end);
+ const u8 *rv;
+
+ if (buf_end - buf < 16) {
+ return truffleMini(shuf_mask_lo_highclear, shuf_mask_lo_highset, buf, buf_end);
+ }
+
+ size_t min = (size_t)buf % 16;
+ assert(buf_end - buf >= 16);
+
+ // Preconditioning: most of the time our buffer won't be aligned.
+ m128 chars = loadu128(buf);
+ rv = JOIN(MATCH_ALGO, fwdBlock)(shuf_mask_lo_highclear, shuf_mask_lo_highset, chars, buf, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (rv) {
+ return rv;
+ }
+ buf += (16 - min);
+
+ // if we have enough data, run bigger pipeline; otherwise run smaller one
+ if (buf_end - buf >= 128) {
+ rv = JOIN(MATCH_ALGO, trufflePipeline32)(shuf_mask_lo_highclear, shuf_mask_lo_highset,
+ buf, buf_end, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(rv)) {
+ return rv;
+ }
+ } else if (buf_end - buf >= 16){
+ rv = JOIN(MATCH_ALGO, trufflePipeline16)(shuf_mask_lo_highclear, shuf_mask_lo_highset,
+ buf, buf_end, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (unlikely(rv)) {
+ return rv;
+ }
+ }
+
+ // Use an unaligned load to mop up the last 16 bytes and get an accurate
+ // picture to buf_end.
+ chars = loadu128(buf_end - 16);
+ rv = JOIN(MATCH_ALGO, fwdBlock)(shuf_mask_lo_highclear, shuf_mask_lo_highset, chars,
+ buf_end - 16, run_len
+#ifdef MULTIACCEL_DOUBLE
+ , run_len2
+#endif
+ );
+ if (rv) {
+ return rv;
+ }
+
+ return buf_end;
+}
projects / thirdparty / vectorscan.git / commitdiff
