Rework alternative matching in JIT.
This commit is contained in:
parent
c11b23e8cc
commit
f5b35e7943
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@ -213,12 +213,6 @@ typedef struct stub_list {
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struct stub_list *next;
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struct stub_list *next;
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} stub_list;
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} stub_list;
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typedef struct label_addr_list {
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struct sljit_label *label;
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sljit_uw *update_addr;
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struct label_addr_list *next;
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} label_addr_list;
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enum frame_types {
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enum frame_types {
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no_frame = -1,
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no_frame = -1,
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no_stack = -2
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no_stack = -2
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@ -272,6 +266,8 @@ typedef struct bracket_backtrack {
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assert_backtrack *assert;
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assert_backtrack *assert;
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/* For OP_ONCE. Less than 0 if not needed. */
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/* For OP_ONCE. Less than 0 if not needed. */
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int framesize;
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int framesize;
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/* For brackets with >3 alternatives. */
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struct sljit_put_label *matching_put_label;
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} u;
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} u;
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/* Points to our private memory word on the stack. */
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/* Points to our private memory word on the stack. */
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int private_data_ptr;
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int private_data_ptr;
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@ -455,7 +451,6 @@ typedef struct compiler_common {
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struct sljit_label *accept_label;
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struct sljit_label *accept_label;
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struct sljit_label *ff_newline_shortcut;
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struct sljit_label *ff_newline_shortcut;
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stub_list *stubs;
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stub_list *stubs;
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label_addr_list *label_addrs;
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recurse_entry *entries;
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recurse_entry *entries;
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recurse_entry *currententry;
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recurse_entry *currententry;
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jump_list *partialmatch;
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jump_list *partialmatch;
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@ -2849,20 +2844,6 @@ while (list_item)
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common->stubs = NULL;
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common->stubs = NULL;
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}
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}
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static void add_label_addr(compiler_common *common, sljit_uw *update_addr)
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{
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DEFINE_COMPILER;
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label_addr_list *label_addr;
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label_addr = sljit_alloc_memory(compiler, sizeof(label_addr_list));
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if (label_addr == NULL)
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return;
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label_addr->label = LABEL();
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label_addr->update_addr = update_addr;
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label_addr->next = common->label_addrs;
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common->label_addrs = label_addr;
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}
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static SLJIT_INLINE void count_match(compiler_common *common)
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static SLJIT_INLINE void count_match(compiler_common *common)
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{
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{
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DEFINE_COMPILER;
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DEFINE_COMPILER;
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@ -10880,10 +10861,23 @@ if (ket != OP_KET || bra != OP_BRA)
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if (offset != 0)
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if (offset != 0)
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stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
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stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
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/* Skip and count the other alternatives. */
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i = 1;
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while (*cc == OP_ALT)
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{
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cc += GET(cc, 1);
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i++;
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}
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if (has_alternatives)
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if (has_alternatives)
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{
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{
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if (opcode != OP_ONCE)
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if (opcode != OP_ONCE)
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
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{
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if (i <= 3)
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
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else
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BACKTRACK_AS(bracket_backtrack)->u.matching_put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(stacksize));
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}
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if (ket != OP_KETRMAX)
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if (ket != OP_KETRMAX)
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BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
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BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
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}
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}
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@ -10972,9 +10966,6 @@ if (bra == OP_BRAMINZERO)
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if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO)
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if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO)
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count_match(common);
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count_match(common);
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/* Skip the other alternatives. */
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while (*cc == OP_ALT)
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cc += GET(cc, 1);
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cc += 1 + LINK_SIZE;
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cc += 1 + LINK_SIZE;
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if (opcode == OP_ONCE)
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if (opcode == OP_ONCE)
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@ -12643,16 +12634,15 @@ PCRE2_SPTR ccprev;
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PCRE2_UCHAR bra = OP_BRA;
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PCRE2_UCHAR bra = OP_BRA;
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PCRE2_UCHAR ket;
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PCRE2_UCHAR ket;
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assert_backtrack *assert;
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assert_backtrack *assert;
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sljit_uw *next_update_addr = NULL;
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BOOL has_alternatives;
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BOOL has_alternatives;
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BOOL needs_control_head = FALSE;
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BOOL needs_control_head = FALSE;
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struct sljit_jump *brazero = NULL;
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struct sljit_jump *brazero = NULL;
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struct sljit_jump *alt1 = NULL;
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struct sljit_jump *next_alt = NULL;
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struct sljit_jump *alt2 = NULL;
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struct sljit_jump *once = NULL;
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struct sljit_jump *once = NULL;
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struct sljit_jump *cond = NULL;
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struct sljit_jump *cond = NULL;
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struct sljit_label *rmin_label = NULL;
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struct sljit_label *rmin_label = NULL;
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struct sljit_label *exact_label = NULL;
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struct sljit_label *exact_label = NULL;
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struct sljit_put_label *put_label;
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if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
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if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
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{
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{
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@ -12801,7 +12791,7 @@ else if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND)
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free_stack(common, 1);
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free_stack(common, 1);
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alt_max = 2;
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alt_max = 2;
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alt1 = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw));
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next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
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}
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}
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}
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}
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else if (has_alternatives)
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else if (has_alternatives)
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@ -12809,21 +12799,15 @@ else if (has_alternatives)
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OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
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OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
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free_stack(common, 1);
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free_stack(common, 1);
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if (alt_max > 4)
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if (alt_max > 3)
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{
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{
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/* Table jump if alt_max is greater than 4. */
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sljit_emit_ijump(compiler, SLJIT_JUMP, TMP1, 0);
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next_update_addr = allocate_read_only_data(common, alt_max * sizeof(sljit_uw));
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if (SLJIT_UNLIKELY(next_update_addr == NULL))
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SLJIT_ASSERT(CURRENT_AS(bracket_backtrack)->u.matching_put_label);
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return;
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sljit_set_put_label(CURRENT_AS(bracket_backtrack)->u.matching_put_label, LABEL());
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sljit_emit_ijump(compiler, SLJIT_JUMP, SLJIT_MEM1(TMP1), (sljit_sw)next_update_addr);
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add_label_addr(common, next_update_addr++);
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}
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}
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else
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else
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{
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next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
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if (alt_max == 4)
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alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
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alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw));
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}
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}
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}
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COMPILE_BACKTRACKINGPATH(current->top);
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COMPILE_BACKTRACKINGPATH(current->top);
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@ -12860,7 +12844,7 @@ if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
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if (has_alternatives)
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if (has_alternatives)
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{
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{
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alt_count = sizeof(sljit_uw);
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alt_count = 1;
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do
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do
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{
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{
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current->top = NULL;
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current->top = NULL;
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@ -12939,7 +12923,12 @@ if (has_alternatives)
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stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
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stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
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if (opcode != OP_ONCE)
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if (opcode != OP_ONCE)
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, alt_count);
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{
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if (alt_max <= 3)
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, alt_count);
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else
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put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(stacksize));
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}
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if (offset != 0 && ket == OP_KETRMAX && common->optimized_cbracket[offset >> 1] != 0)
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if (offset != 0 && ket == OP_KETRMAX && common->optimized_cbracket[offset >> 1] != 0)
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{
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{
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@ -12952,24 +12941,18 @@ if (has_alternatives)
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if (opcode != OP_ONCE)
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if (opcode != OP_ONCE)
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{
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{
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if (alt_max > 4)
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if (alt_max <= 3)
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add_label_addr(common, next_update_addr++);
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else
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{
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{
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if (alt_count != 2 * sizeof(sljit_uw))
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JUMPHERE(next_alt);
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alt_count++;
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if (alt_count < alt_max)
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{
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{
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JUMPHERE(alt1);
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SLJIT_ASSERT(alt_count == 2 && alt_max == 3);
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if (alt_max == 3 && alt_count == sizeof(sljit_uw))
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next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 1);
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alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
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}
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else
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{
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JUMPHERE(alt2);
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if (alt_max == 4)
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alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_uw));
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}
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}
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}
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}
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alt_count += sizeof(sljit_uw);
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else
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sljit_set_put_label(put_label, LABEL());
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}
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}
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COMPILE_BACKTRACKINGPATH(current->top);
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COMPILE_BACKTRACKINGPATH(current->top);
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@ -13459,11 +13442,10 @@ int private_data_size = get_recurse_data_length(common, ccbegin, ccend, &needs_c
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int alt_count, alt_max, local_size;
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int alt_count, alt_max, local_size;
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backtrack_common altbacktrack;
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backtrack_common altbacktrack;
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jump_list *match = NULL;
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jump_list *match = NULL;
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sljit_uw *next_update_addr = NULL;
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struct sljit_jump *next_alt = NULL;
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struct sljit_jump *alt1 = NULL;
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struct sljit_jump *alt2 = NULL;
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struct sljit_jump *accept_exit = NULL;
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struct sljit_jump *accept_exit = NULL;
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struct sljit_label *quit;
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struct sljit_label *quit;
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struct sljit_put_label *put_label;
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/* Recurse captures then. */
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/* Recurse captures then. */
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common->then_trap = NULL;
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common->then_trap = NULL;
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@ -13524,7 +13506,12 @@ while (1)
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OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
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OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
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if (alt_max > 1 || has_accept)
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if (alt_max > 1 || has_accept)
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, alt_count);
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{
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if (alt_max > 3)
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put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(1));
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else
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, alt_count);
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}
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add_jump(compiler, &match, JUMP(SLJIT_JUMP));
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add_jump(compiler, &match, JUMP(SLJIT_JUMP));
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@ -13538,7 +13525,7 @@ while (1)
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sljit_emit_fast_enter(compiler, TMP1, 0);
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sljit_emit_fast_enter(compiler, TMP1, 0);
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if (has_accept)
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if (has_accept)
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accept_exit = CMP(SLJIT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, alt_max * sizeof (sljit_sw));
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accept_exit = CMP(SLJIT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, -1);
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OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
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OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
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/* Save return address. */
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/* Save return address. */
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@ -13551,44 +13538,30 @@ while (1)
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OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
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OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
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free_stack(common, 2);
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free_stack(common, 2);
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if (alt_max > 4)
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if (alt_max > 3)
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{
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{
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/* Table jump if alt_max is greater than 4. */
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sljit_emit_ijump(compiler, SLJIT_JUMP, TMP1, 0);
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next_update_addr = allocate_read_only_data(common, alt_max * sizeof(sljit_uw));
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sljit_set_put_label(put_label, LABEL());
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if (SLJIT_UNLIKELY(next_update_addr == NULL))
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return;
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sljit_emit_ijump(compiler, SLJIT_JUMP, SLJIT_MEM1(TMP1), (sljit_sw)next_update_addr);
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add_label_addr(common, next_update_addr++);
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}
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}
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else
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else
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{
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next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
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if (alt_max == 4)
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alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
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alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw));
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}
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}
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}
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else
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else
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free_stack(common, has_accept ? 2 : 1);
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free_stack(common, has_accept ? 2 : 1);
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}
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}
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else if (alt_max > 4)
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else if (alt_max > 3)
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add_label_addr(common, next_update_addr++);
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sljit_set_put_label(put_label, LABEL());
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else
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else
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{
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{
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if (alt_count != 2 * sizeof(sljit_uw))
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JUMPHERE(next_alt);
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if (alt_count + 1 < alt_max)
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{
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{
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JUMPHERE(alt1);
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SLJIT_ASSERT(alt_count == 1 && alt_max == 3);
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if (alt_max == 3 && alt_count == sizeof(sljit_uw))
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next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 1);
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alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
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}
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else
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{
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JUMPHERE(alt2);
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if (alt_max == 4)
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alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_uw));
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}
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}
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}
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}
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alt_count += sizeof(sljit_uw);
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alt_count++;
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compile_backtrackingpath(common, altbacktrack.top);
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compile_backtrackingpath(common, altbacktrack.top);
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if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
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if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
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@ -13649,7 +13622,7 @@ if (common->accept != NULL)
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OP1(SLJIT_MOV, TMP2, 0, STACK_TOP, 0);
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OP1(SLJIT_MOV, TMP2, 0, STACK_TOP, 0);
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allocate_stack(common, 2);
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allocate_stack(common, 2);
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, alt_count);
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OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, -1);
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}
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}
|
||||||
|
|
||||||
set_jumps(match, LABEL());
|
set_jumps(match, LABEL());
|
||||||
|
@ -13684,7 +13657,6 @@ executable_functions *functions;
|
||||||
void *executable_func;
|
void *executable_func;
|
||||||
sljit_uw executable_size;
|
sljit_uw executable_size;
|
||||||
sljit_uw total_length;
|
sljit_uw total_length;
|
||||||
label_addr_list *label_addr;
|
|
||||||
struct sljit_label *mainloop_label = NULL;
|
struct sljit_label *mainloop_label = NULL;
|
||||||
struct sljit_label *continue_match_label;
|
struct sljit_label *continue_match_label;
|
||||||
struct sljit_label *empty_match_found_label = NULL;
|
struct sljit_label *empty_match_found_label = NULL;
|
||||||
|
@ -14276,13 +14248,8 @@ SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
||||||
|
|
||||||
executable_func = sljit_generate_code(compiler);
|
executable_func = sljit_generate_code(compiler);
|
||||||
executable_size = sljit_get_generated_code_size(compiler);
|
executable_size = sljit_get_generated_code_size(compiler);
|
||||||
label_addr = common->label_addrs;
|
|
||||||
while (label_addr != NULL)
|
|
||||||
{
|
|
||||||
*label_addr->update_addr = sljit_get_label_addr(label_addr->label);
|
|
||||||
label_addr = label_addr->next;
|
|
||||||
}
|
|
||||||
sljit_free_compiler(compiler);
|
sljit_free_compiler(compiler);
|
||||||
|
|
||||||
if (executable_func == NULL)
|
if (executable_func == NULL)
|
||||||
{
|
{
|
||||||
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
||||||
|
|
|
@ -721,6 +721,7 @@ static SLJIT_INLINE void set_const(struct sljit_const *const_, struct sljit_comp
|
||||||
static SLJIT_INLINE void set_put_label(struct sljit_put_label *put_label, struct sljit_compiler *compiler, sljit_uw offset)
|
static SLJIT_INLINE void set_put_label(struct sljit_put_label *put_label, struct sljit_compiler *compiler, sljit_uw offset)
|
||||||
{
|
{
|
||||||
put_label->next = NULL;
|
put_label->next = NULL;
|
||||||
|
put_label->label = NULL;
|
||||||
put_label->addr = compiler->size - offset;
|
put_label->addr = compiler->size - offset;
|
||||||
put_label->flags = 0;
|
put_label->flags = 0;
|
||||||
if (compiler->last_put_label)
|
if (compiler->last_put_label)
|
||||||
|
|
|
@ -611,15 +611,15 @@ SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compil
|
||||||
put_label = compiler->put_labels;
|
put_label = compiler->put_labels;
|
||||||
while (put_label) {
|
while (put_label) {
|
||||||
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
|
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
|
||||||
sljit_unaligned_store_sw((void*)put_label->addr - sizeof(sljit_sw), (sljit_sw)put_label->label->addr);
|
sljit_unaligned_store_sw((void*)(put_label->addr - sizeof(sljit_sw)), (sljit_sw)put_label->label->addr);
|
||||||
#else
|
#else
|
||||||
if (put_label->flags & PATCH_MD) {
|
if (put_label->flags & PATCH_MD) {
|
||||||
SLJIT_ASSERT(put_label->label->addr > HALFWORD_MAX);
|
SLJIT_ASSERT(put_label->label->addr > HALFWORD_MAX);
|
||||||
sljit_unaligned_store_sw((void*)put_label->addr - sizeof(sljit_sw), (sljit_sw)put_label->label->addr);
|
sljit_unaligned_store_sw((void*)(put_label->addr - sizeof(sljit_sw)), (sljit_sw)put_label->label->addr);
|
||||||
}
|
}
|
||||||
else {
|
else {
|
||||||
SLJIT_ASSERT(put_label->label->addr <= HALFWORD_MAX);
|
SLJIT_ASSERT(put_label->label->addr <= HALFWORD_MAX);
|
||||||
sljit_unaligned_store_s32((void*)put_label->addr - sizeof(sljit_s32), (sljit_s32)put_label->label->addr);
|
sljit_unaligned_store_s32((void*)(put_label->addr - sizeof(sljit_s32)), (sljit_s32)put_label->label->addr);
|
||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue