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/*
* Copyright (c) 2016-2020, 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.
*/
/*
* In order to use this macro, the following things need to be defined:
*
* - SHENG_IMPL (name of the Sheng implementation function)
* - INTERESTING_FUNC (name of the function checking for accept, accel or dead
* states)
* - INNER_DEAD_FUNC (name of the inner function checking for dead states)
* - OUTER_DEAD_FUNC (name of the outer function checking for dead states)
* - INNER_ACCEL_FUNC (name of the inner function checking for accel states)
* - OUTER_ACCEL_FUNC (name of the outer function checking for accel states)
* - ACCEPT_FUNC (name of the function checking for accept state)
* - STOP_AT_MATCH (can be 1 or 0, enable or disable stop at match)
*/
/* unrolled 4-byte-at-a-time version.
*
* we put innerDeadFunc inside interestingFunc() block so that we don't pay for
* dead states checking. however, if interestingFunc is dummy, innerDeadFunc
* gets lost with it, so we need an additional check outside the
* interestingFunc() branch - it's normally dummy so we don't pay for it, but
* when interestingFunc is dummy, outerDeadFunc should be set if we want to
* check for dead states.
*
* also, deadFunc only checks the last known state, but since we can't ever get
* out of the dead state and we don't really care where we died, it's not a
* problem.
*/
static really_inline
char SHENG_IMPL(u8 *state, NfaCallback cb, void *ctxt, const struct sheng *s,
u8 *const cached_accept_state, ReportID *const cached_accept_id,
u8 single, u64a base_offset, const u8 *buf, const u8 *start,
const u8 *end, const u8 **scan_end) {
DEBUG_PRINTF("Starting DFAx4 execution in state %u\n",
*state & SHENG_STATE_MASK);
const u8 *cur_buf = start;
const u8 *min_accel_dist = start;
base_offset++;
DEBUG_PRINTF("Scanning %llu bytes\n", (u64a)(end - start));
if (INNER_ACCEL_FUNC(*state) || OUTER_ACCEL_FUNC(*state)) {
DEBUG_PRINTF("Accel state reached @ 0\n");
const union AccelAux *aaux = get_accel(s, *state & SHENG_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf, end);
if (new_offset < cur_buf + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %zu bytes\n", new_offset - cur_buf);
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %lli\n", (s64a)(cur_buf - start));
}
if (INNER_DEAD_FUNC(*state) || OUTER_DEAD_FUNC(*state)) {
DEBUG_PRINTF("Dead on arrival\n");
*scan_end = end;
return MO_CONTINUE_MATCHING;
}
m128 cur_state = set16x8(*state);
const m128 *masks = s->shuffle_masks;
while (likely(end - cur_buf >= 4)) {
const u8 *b1 = cur_buf;
const u8 *b2 = cur_buf + 1;
const u8 *b3 = cur_buf + 2;
const u8 *b4 = cur_buf + 3;
const u8 c1 = *b1;
const u8 c2 = *b2;
const u8 c3 = *b3;
const u8 c4 = *b4;
const m128 shuffle_mask1 = masks[c1];
cur_state = pshufb_m128(shuffle_mask1, cur_state);
const u8 a1 = movd(cur_state);
const m128 shuffle_mask2 = masks[c2];
cur_state = pshufb_m128(shuffle_mask2, cur_state);
const u8 a2 = movd(cur_state);
const m128 shuffle_mask3 = masks[c3];
cur_state = pshufb_m128(shuffle_mask3, cur_state);
const u8 a3 = movd(cur_state);
const m128 shuffle_mask4 = masks[c4];
cur_state = pshufb_m128(shuffle_mask4, cur_state);
const u8 a4 = movd(cur_state);
DEBUG_PRINTF("c: %02hhx '%c'\n", c1, ourisprint(c1) ? c1 : '?');
DEBUG_PRINTF("s: %u (hi: %u lo: %u)\n", a1, (a1 & 0xF0) >> 4, a1 & 0xF);
DEBUG_PRINTF("c: %02hhx '%c'\n", c2, ourisprint(c2) ? c2 : '?');
DEBUG_PRINTF("s: %u (hi: %u lo: %u)\n", a2, (a2 & 0xF0) >> 4, a2 & 0xF);
DEBUG_PRINTF("c: %02hhx '%c'\n", c3, ourisprint(c3) ? c3 : '?');
DEBUG_PRINTF("s: %u (hi: %u lo: %u)\n", a3, (a3 & 0xF0) >> 4, a3 & 0xF);
DEBUG_PRINTF("c: %02hhx '%c'\n", c4, ourisprint(c4) ? c4 : '?');
DEBUG_PRINTF("s: %u (hi: %u lo: %u)\n", a4, (a4 & 0xF0) >> 4, a4 & 0xF);
if (unlikely(INTERESTING_FUNC(a1, a2, a3, a4))) {
if (ACCEPT_FUNC(a1)) {
u64a match_offset = base_offset + b1 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a1 & SHENG_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b1 - start));
*scan_end = b1;
*state = a1;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports(s, cb, ctxt, a1, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC(a2)) {
u64a match_offset = base_offset + b2 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a2 & SHENG_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b2 - start));
*scan_end = b2;
*state = a2;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports(s, cb, ctxt, a2, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC(a3)) {
u64a match_offset = base_offset + b3 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a3 & SHENG_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b3 - start));
*scan_end = b3;
*state = a3;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports(s, cb, ctxt, a3, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC(a4)) {
u64a match_offset = base_offset + b4 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a4 & SHENG_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b4 - start));
*scan_end = b4;
*state = a4;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports(s, cb, ctxt, a4, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (INNER_DEAD_FUNC(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(b4 - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
}
if (cur_buf > min_accel_dist && INNER_ACCEL_FUNC(a4)) {
DEBUG_PRINTF("Accel state reached @ %lli\n", (s64a)(b4 - buf));
const union AccelAux *aaux =
get_accel(s, a4 & SHENG_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf + 4, end);
if (new_offset < cur_buf + 4 + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %llu bytes\n",
(u64a)(new_offset - cur_buf - 4));
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %llu\n", (u64a)(cur_buf - buf));
continue;
}
}
if (OUTER_DEAD_FUNC(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(cur_buf - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
};
if (cur_buf > min_accel_dist && OUTER_ACCEL_FUNC(a4)) {
DEBUG_PRINTF("Accel state reached @ %lli\n", (s64a)(b4 - buf));
const union AccelAux *aaux = get_accel(s, a4 & SHENG_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf + 4, end);
if (new_offset < cur_buf + 4 + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %llu bytes\n",
(u64a)(new_offset - cur_buf - 4));
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %llu\n", (u64a)(cur_buf - buf));
continue;
};
cur_buf += 4;
}
*state = movd(cur_state);
*scan_end = cur_buf;
return MO_CONTINUE_MATCHING;
}
#if defined(HAVE_AVX512VBMI)
static really_inline
char SHENG32_IMPL(u8 *state, NfaCallback cb, void *ctxt,
const struct sheng32 *s,
u8 *const cached_accept_state,
ReportID *const cached_accept_id,
u8 single, u64a base_offset, const u8 *buf, const u8 *start,
const u8 *end, const u8 **scan_end) {
DEBUG_PRINTF("Starting DFAx4 execution in state %u\n",
*state & SHENG32_STATE_MASK);
const u8 *cur_buf = start;
const u8 *min_accel_dist = start;
base_offset++;
DEBUG_PRINTF("Scanning %llu bytes\n", (u64a)(end - start));
if (INNER_ACCEL_FUNC32(*state) || OUTER_ACCEL_FUNC32(*state)) {
DEBUG_PRINTF("Accel state reached @ 0\n");
const union AccelAux *aaux =
get_accel32(s, *state & SHENG32_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf, end);
if (new_offset < cur_buf + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %zu bytes\n", new_offset - cur_buf);
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %lli\n", (s64a)(cur_buf - start));
}
if (INNER_DEAD_FUNC32(*state) || OUTER_DEAD_FUNC32(*state)) {
DEBUG_PRINTF("Dead on arrival\n");
*scan_end = end;
return MO_CONTINUE_MATCHING;
}
m512 cur_state = set64x8(*state);
const m512 *masks = s->succ_masks;
while (likely(end - cur_buf >= 4)) {
const u8 *b1 = cur_buf;
const u8 *b2 = cur_buf + 1;
const u8 *b3 = cur_buf + 2;
const u8 *b4 = cur_buf + 3;
const u8 c1 = *b1;
const u8 c2 = *b2;
const u8 c3 = *b3;
const u8 c4 = *b4;
const m512 succ_mask1 = masks[c1];
cur_state = vpermb512(cur_state, succ_mask1);
const u8 a1 = movd512(cur_state);
const m512 succ_mask2 = masks[c2];
cur_state = vpermb512(cur_state, succ_mask2);
const u8 a2 = movd512(cur_state);
const m512 succ_mask3 = masks[c3];
cur_state = vpermb512(cur_state, succ_mask3);
const u8 a3 = movd512(cur_state);
const m512 succ_mask4 = masks[c4];
cur_state = vpermb512(cur_state, succ_mask4);
const u8 a4 = movd512(cur_state);
DEBUG_PRINTF("c: %02hhx '%c'\n", c1, ourisprint(c1) ? c1 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a1 & SHENG32_STATE_MASK,
a1 & SHENG32_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c2, ourisprint(c2) ? c2 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a2 & SHENG32_STATE_MASK,
a2 & SHENG32_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c3, ourisprint(c3) ? c3 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a3 & SHENG32_STATE_MASK,
a3 & SHENG32_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c4, ourisprint(c4) ? c4 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a4 & SHENG32_STATE_MASK,
a4 & SHENG32_STATE_FLAG_MASK);
if (unlikely(INTERESTING_FUNC32(a1, a2, a3, a4))) {
if (ACCEPT_FUNC32(a1)) {
u64a match_offset = base_offset + b1 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a1 & SHENG32_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b1 - start));
*scan_end = b1;
*state = a1;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports32(s, cb, ctxt, a1, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC32(a2)) {
u64a match_offset = base_offset + b2 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a2 & SHENG32_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b2 - start));
*scan_end = b2;
*state = a2;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports32(s, cb, ctxt, a2, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC32(a3)) {
u64a match_offset = base_offset + b3 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a3 & SHENG32_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b3 - start));
*scan_end = b3;
*state = a3;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports32(s, cb, ctxt, a3, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC32(a4)) {
u64a match_offset = base_offset + b4 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a4 & SHENG32_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b4 - start));
*scan_end = b4;
*state = a4;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports32(s, cb, ctxt, a4, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (INNER_DEAD_FUNC32(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(b4 - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
}
if (cur_buf > min_accel_dist && INNER_ACCEL_FUNC32(a4)) {
DEBUG_PRINTF("Accel state reached @ %lli\n", (s64a)(b4 - buf));
const union AccelAux *aaux =
get_accel32(s, a4 & SHENG32_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf + 4, end);
if (new_offset < cur_buf + 4 + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %llu bytes\n",
(u64a)(new_offset - cur_buf - 4));
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %llu\n", (u64a)(cur_buf - buf));
continue;
}
}
if (OUTER_DEAD_FUNC32(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(cur_buf - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
};
if (cur_buf > min_accel_dist && OUTER_ACCEL_FUNC32(a4)) {
DEBUG_PRINTF("Accel state reached @ %lli\n", (s64a)(b4 - buf));
const union AccelAux *aaux =
get_accel32(s, a4 & SHENG32_STATE_MASK);
const u8 *new_offset = run_accel(aaux, cur_buf + 4, end);
if (new_offset < cur_buf + 4 + BAD_ACCEL_DIST) {
min_accel_dist = new_offset + BIG_ACCEL_PENALTY;
} else {
min_accel_dist = new_offset + SMALL_ACCEL_PENALTY;
}
DEBUG_PRINTF("Next accel chance: %llu\n",
(u64a)(min_accel_dist - start));
DEBUG_PRINTF("Accel scanned %llu bytes\n",
(u64a)(new_offset - cur_buf - 4));
cur_buf = new_offset;
DEBUG_PRINTF("New offset: %llu\n", (u64a)(cur_buf - buf));
continue;
};
cur_buf += 4;
}
*state = movd512(cur_state);
*scan_end = cur_buf;
return MO_CONTINUE_MATCHING;
}
#ifndef NO_SHENG64_IMPL
static really_inline
char SHENG64_IMPL(u8 *state, NfaCallback cb, void *ctxt,
const struct sheng64 *s,
u8 *const cached_accept_state,
ReportID *const cached_accept_id,
u8 single, u64a base_offset, const u8 *buf, const u8 *start,
const u8 *end, const u8 **scan_end) {
DEBUG_PRINTF("Starting DFAx4 execution in state %u\n",
*state & SHENG64_STATE_MASK);
const u8 *cur_buf = start;
base_offset++;
DEBUG_PRINTF("Scanning %llu bytes\n", (u64a)(end - start));
if (INNER_DEAD_FUNC64(*state) || OUTER_DEAD_FUNC64(*state)) {
DEBUG_PRINTF("Dead on arrival\n");
*scan_end = end;
return MO_CONTINUE_MATCHING;
}
m512 cur_state = set64x8(*state);
const m512 *masks = s->succ_masks;
while (likely(end - cur_buf >= 4)) {
const u8 *b1 = cur_buf;
const u8 *b2 = cur_buf + 1;
const u8 *b3 = cur_buf + 2;
const u8 *b4 = cur_buf + 3;
const u8 c1 = *b1;
const u8 c2 = *b2;
const u8 c3 = *b3;
const u8 c4 = *b4;
const m512 succ_mask1 = masks[c1];
cur_state = vpermb512(cur_state, succ_mask1);
const u8 a1 = movd512(cur_state);
const m512 succ_mask2 = masks[c2];
cur_state = vpermb512(cur_state, succ_mask2);
const u8 a2 = movd512(cur_state);
const m512 succ_mask3 = masks[c3];
cur_state = vpermb512(cur_state, succ_mask3);
const u8 a3 = movd512(cur_state);
const m512 succ_mask4 = masks[c4];
cur_state = vpermb512(cur_state, succ_mask4);
const u8 a4 = movd512(cur_state);
DEBUG_PRINTF("c: %02hhx '%c'\n", c1, ourisprint(c1) ? c1 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a1 & SHENG64_STATE_MASK,
a1 & SHENG64_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c2, ourisprint(c2) ? c2 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a2 & SHENG64_STATE_MASK,
a2 & SHENG64_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c3, ourisprint(c3) ? c3 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a3 & SHENG64_STATE_MASK,
a3 & SHENG64_STATE_FLAG_MASK);
DEBUG_PRINTF("c: %02hhx '%c'\n", c4, ourisprint(c4) ? c4 : '?');
DEBUG_PRINTF("s: %u (flag: %u)\n", a4 & SHENG64_STATE_MASK,
a4 & SHENG64_STATE_FLAG_MASK);
if (unlikely(INTERESTING_FUNC64(a1, a2, a3, a4))) {
if (ACCEPT_FUNC64(a1)) {
u64a match_offset = base_offset + b1 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a1 & SHENG64_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b1 - start));
*scan_end = b1;
*state = a1;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports64(s, cb, ctxt, a1, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC64(a2)) {
u64a match_offset = base_offset + b2 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a2 & SHENG64_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b2 - start));
*scan_end = b2;
*state = a2;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports64(s, cb, ctxt, a2, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC64(a3)) {
u64a match_offset = base_offset + b3 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a3 & SHENG64_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b3 - start));
*scan_end = b3;
*state = a3;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports64(s, cb, ctxt, a3, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (ACCEPT_FUNC64(a4)) {
u64a match_offset = base_offset + b4 - buf;
DEBUG_PRINTF("Accept state %u reached\n",
a4 & SHENG64_STATE_MASK);
DEBUG_PRINTF("Match @ %llu\n", match_offset);
if (STOP_AT_MATCH) {
DEBUG_PRINTF("Stopping at match @ %lli\n",
(s64a)(b4 - start));
*scan_end = b4;
*state = a4;
return MO_MATCHES_PENDING;
}
if (single) {
if (fireSingleReport(cb, ctxt, s->report, match_offset) ==
MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
} else {
if (fireReports64(s, cb, ctxt, a4, match_offset,
cached_accept_state, cached_accept_id,
0) == MO_HALT_MATCHING) {
return MO_HALT_MATCHING;
}
}
}
if (INNER_DEAD_FUNC64(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(b4 - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
}
}
if (OUTER_DEAD_FUNC64(a4)) {
DEBUG_PRINTF("Dead state reached @ %lli\n", (s64a)(cur_buf - buf));
*scan_end = end;
*state = a4;
return MO_CONTINUE_MATCHING;
}
cur_buf += 4;
}
*state = movd512(cur_state);
*scan_end = cur_buf;
return MO_CONTINUE_MATCHING;
}
#endif // !NO_SHENG64_IMPL
#endif
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