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+/*************************************************
+* Perl-Compatible Regular Expressions *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+ Written by Philip Hazel
+ Copyright (c) 1997-2013 University of Cambridge
+
+ The machine code generator part (this module) was written by Zoltan Herczeg
+ Copyright (c) 2010-2013
+
+-----------------------------------------------------------------------------
+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 the University of Cambridge 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.
+-----------------------------------------------------------------------------
+*/
+/* %ExternalCopyright% */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#if defined SUPPORT_JIT
+
+/* All-in-one: Since we use the JIT compiler only from here,
+we just include it. This way we don't need to touch the build
+system files. */
+
+#define SLJIT_MALLOC(size) (PUBL(malloc))(size)
+#define SLJIT_FREE(ptr) (PUBL(free))(ptr)
+#define SLJIT_CONFIG_AUTO 1
+#define SLJIT_CONFIG_STATIC 1
+#define SLJIT_VERBOSE 0
+#define SLJIT_DEBUG 0
+
+#include "sljit/sljitLir.c"
+
+#if defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED
+#error Unsupported architecture
+#endif
+
+/* Defines for debugging purposes. */
+
+/* 1 - Use unoptimized capturing brackets.
+ 2 - Enable capture_last_ptr (includes option 1). */
+/* #define DEBUG_FORCE_UNOPTIMIZED_CBRAS 2 */
+
+/* 1 - Always have a control head. */
+/* #define DEBUG_FORCE_CONTROL_HEAD 1 */
+
+/* Allocate memory for the regex stack on the real machine stack.
+Fast, but limited size. */
+#define MACHINE_STACK_SIZE 32768
+
+/* Growth rate for stack allocated by the OS. Should be the multiply
+of page size. */
+#define STACK_GROWTH_RATE 8192
+
+/* Enable to check that the allocation could destroy temporaries. */
+#if defined SLJIT_DEBUG && SLJIT_DEBUG
+#define DESTROY_REGISTERS 1
+#endif
+
+/*
+Short summary about the backtracking mechanism empolyed by the jit code generator:
+
+The code generator follows the recursive nature of the PERL compatible regular
+expressions. The basic blocks of regular expressions are condition checkers
+whose execute different commands depending on the result of the condition check.
+The relationship between the operators can be horizontal (concatenation) and
+vertical (sub-expression) (See struct backtrack_common for more details).
+
+ 'ab' - 'a' and 'b' regexps are concatenated
+ 'a+' - 'a' is the sub-expression of the '+' operator
+
+The condition checkers are boolean (true/false) checkers. Machine code is generated
+for the checker itself and for the actions depending on the result of the checker.
+The 'true' case is called as the matching path (expected path), and the other is called as
+the 'backtrack' path. Branch instructions are expesive for all CPUs, so we avoid taken
+branches on the matching path.
+
+ Greedy star operator (*) :
+ Matching path: match happens.
+ Backtrack path: match failed.
+ Non-greedy star operator (*?) :
+ Matching path: no need to perform a match.
+ Backtrack path: match is required.
+
+The following example shows how the code generated for a capturing bracket
+with two alternatives. Let A, B, C, D are arbirary regular expressions, and
+we have the following regular expression:
+
+ A(B|C)D
+
+The generated code will be the following:
+
+ A matching path
+ '(' matching path (pushing arguments to the stack)
+ B matching path
+ ')' matching path (pushing arguments to the stack)
+ D matching path
+ return with successful match
+
+ D backtrack path
+ ')' backtrack path (If we arrived from "C" jump to the backtrack of "C")
+ B backtrack path
+ C expected path
+ jump to D matching path
+ C backtrack path
+ A backtrack path
+
+ Notice, that the order of backtrack code paths are the opposite of the fast
+ code paths. In this way the topmost value on the stack is always belong
+ to the current backtrack code path. The backtrack path must check
+ whether there is a next alternative. If so, it needs to jump back to
+ the matching path eventually. Otherwise it needs to clear out its own stack
+ frame and continue the execution on the backtrack code paths.
+*/
+
+/*
+Saved stack frames:
+
+Atomic blocks and asserts require reloading the values of private data
+when the backtrack mechanism performed. Because of OP_RECURSE, the data
+are not necessarly known in compile time, thus we need a dynamic restore
+mechanism.
+
+The stack frames are stored in a chain list, and have the following format:
+([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ]
+
+Thus we can restore the private data to a particular point in the stack.
+*/
+
+typedef struct jit_arguments {
+ /* Pointers first. */
+ struct sljit_stack *stack;
+ const pcre_uchar *str;
+ const pcre_uchar *begin;
+ const pcre_uchar *end;
+ int *offsets;
+ pcre_uchar *uchar_ptr;
+ pcre_uchar *mark_ptr;
+ void *callout_data;
+ /* Everything else after. */
+ pcre_uint32 limit_match;
+ int real_offset_count;
+ int offset_count;
+ pcre_uint8 notbol;
+ pcre_uint8 noteol;
+ pcre_uint8 notempty;
+ pcre_uint8 notempty_atstart;
+} jit_arguments;
+
+typedef struct executable_functions {
+ void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES];
+ PUBL(jit_callback) callback;
+ void *userdata;
+ pcre_uint32 top_bracket;
+ pcre_uint32 limit_match;
+ sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];
+} executable_functions;
+
+typedef struct jump_list {
+ struct sljit_jump *jump;
+ struct jump_list *next;
+} jump_list;
+
+typedef struct stub_list {
+ struct sljit_jump *start;
+ struct sljit_label *quit;
+ struct stub_list *next;
+} stub_list;
+
+enum frame_types {
+ no_frame = -1,
+ no_stack = -2
+};
+
+enum control_types {
+ type_mark = 0,
+ type_then_trap = 1
+};
+
+typedef int (SLJIT_CALL *jit_function)(jit_arguments *args);
+
+/* The following structure is the key data type for the recursive
+code generator. It is allocated by compile_matchingpath, and contains
+the arguments for compile_backtrackingpath. Must be the first member
+of its descendants. */
+typedef struct backtrack_common {
+ /* Concatenation stack. */
+ struct backtrack_common *prev;
+ jump_list *nextbacktracks;
+ /* Internal stack (for component operators). */
+ struct backtrack_common *top;
+ jump_list *topbacktracks;
+ /* Opcode pointer. */
+ pcre_uchar *cc;
+} backtrack_common;
+
+typedef struct assert_backtrack {
+ backtrack_common common;
+ jump_list *condfailed;
+ /* Less than 0 if a frame is not needed. */
+ int framesize;
+ /* Points to our private memory word on the stack. */
+ int private_data_ptr;
+ /* For iterators. */
+ struct sljit_label *matchingpath;
+} assert_backtrack;
+
+typedef struct bracket_backtrack {
+ backtrack_common common;
+ /* Where to coninue if an alternative is successfully matched. */
+ struct sljit_label *alternative_matchingpath;
+ /* For rmin and rmax iterators. */
+ struct sljit_label *recursive_matchingpath;
+ /* For greedy ? operator. */
+ struct sljit_label *zero_matchingpath;
+ /* Contains the branches of a failed condition. */
+ union {
+ /* Both for OP_COND, OP_SCOND. */
+ jump_list *condfailed;
+ assert_backtrack *assert;
+ /* For OP_ONCE. Less than 0 if not needed. */
+ int framesize;
+ } u;
+ /* Points to our private memory word on the stack. */
+ int private_data_ptr;
+} bracket_backtrack;
+
+typedef struct bracketpos_backtrack {
+ backtrack_common common;
+ /* Points to our private memory word on the stack. */
+ int private_data_ptr;
+ /* Reverting stack is needed. */
+ int framesize;
+ /* Allocated stack size. */
+ int stacksize;
+} bracketpos_backtrack;
+
+typedef struct braminzero_backtrack {
+ backtrack_common common;
+ struct sljit_label *matchingpath;
+} braminzero_backtrack;
+
+typedef struct iterator_backtrack {
+ backtrack_common common;
+ /* Next iteration. */
+ struct sljit_label *matchingpath;
+} iterator_backtrack;
+
+typedef struct recurse_entry {
+ struct recurse_entry *next;
+ /* Contains the function entry. */
+ struct sljit_label *entry;
+ /* Collects the calls until the function is not created. */
+ jump_list *calls;
+ /* Points to the starting opcode. */
+ sljit_sw start;
+} recurse_entry;
+
+typedef struct recurse_backtrack {
+ backtrack_common common;
+ BOOL inlined_pattern;
+} recurse_backtrack;
+
+#define OP_THEN_TRAP OP_TABLE_LENGTH
+
+typedef struct then_trap_backtrack {
+ backtrack_common common;
+ /* If then_trap is not NULL, this structure contains the real
+ then_trap for the backtracking path. */
+ struct then_trap_backtrack *then_trap;
+ /* Points to the starting opcode. */
+ sljit_sw start;
+ /* Exit point for the then opcodes of this alternative. */
+ jump_list *quit;
+ /* Frame size of the current alternative. */
+ int framesize;
+} then_trap_backtrack;
+
+#define MAX_RANGE_SIZE 6
+
+typedef struct compiler_common {
+ /* The sljit ceneric compiler. */
+ struct sljit_compiler *compiler;
+ /* First byte code. */
+ pcre_uchar *start;
+ /* Maps private data offset to each opcode. */
+ sljit_si *private_data_ptrs;
+ /* Tells whether the capturing bracket is optimized. */
+ pcre_uint8 *optimized_cbracket;
+ /* Tells whether the starting offset is a target of then. */
+ pcre_uint8 *then_offsets;
+ /* Current position where a THEN must jump. */
+ then_trap_backtrack *then_trap;
+ /* Starting offset of private data for capturing brackets. */
+ int cbra_ptr;
+ /* Output vector starting point. Must be divisible by 2. */
+ int ovector_start;
+ /* Last known position of the requested byte. */
+ int req_char_ptr;
+ /* Head of the last recursion. */
+ int recursive_head_ptr;
+ /* First inspected character for partial matching. */
+ int start_used_ptr;
+ /* Starting pointer for partial soft matches. */
+ int hit_start;
+ /* End pointer of the first line. */
+ int first_line_end;
+ /* Points to the marked string. */
+ int mark_ptr;
+ /* Recursive control verb management chain. */
+ int control_head_ptr;
+ /* Points to the last matched capture block index. */
+ int capture_last_ptr;
+ /* Points to the starting position of the current match. */
+ int start_ptr;
+
+ /* Flipped and lower case tables. */
+ const pcre_uint8 *fcc;
+ sljit_sw lcc;
+ /* Mode can be PCRE_STUDY_JIT_COMPILE and others. */
+ int mode;
+ /* \K is found in the pattern. */
+ BOOL has_set_som;
+ /* (*SKIP:arg) is found in the pattern. */
+ BOOL has_skip_arg;
+ /* (*THEN) is found in the pattern. */
+ BOOL has_then;
+ /* Needs to know the start position anytime. */
+ BOOL needs_start_ptr;
+ /* Currently in recurse or negative assert. */
+ BOOL local_exit;
+ /* Currently in a positive assert. */
+ BOOL positive_assert;
+ /* Newline control. */
+ int nltype;
+ int newline;
+ int bsr_nltype;
+ /* Dollar endonly. */
+ int endonly;
+ /* Tables. */
+ sljit_sw ctypes;
+ int digits[2 + MAX_RANGE_SIZE];
+ /* Named capturing brackets. */
+ sljit_uw name_table;
+ sljit_sw name_count;
+ sljit_sw name_entry_size;
+
+ /* Labels and jump lists. */
+ struct sljit_label *partialmatchlabel;
+ struct sljit_label *quit_label;
+ struct sljit_label *forced_quit_label;
+ struct sljit_label *accept_label;
+ stub_list *stubs;
+ recurse_entry *entries;
+ recurse_entry *currententry;
+ jump_list *partialmatch;
+ jump_list *quit;
+ jump_list *positive_assert_quit;
+ jump_list *forced_quit;
+ jump_list *accept;
+ jump_list *calllimit;
+ jump_list *stackalloc;
+ jump_list *revertframes;
+ jump_list *wordboundary;
+ jump_list *anynewline;
+ jump_list *hspace;
+ jump_list *vspace;
+ jump_list *casefulcmp;
+ jump_list *caselesscmp;
+ jump_list *reset_match;
+ BOOL jscript_compat;
+#ifdef SUPPORT_UTF
+ BOOL utf;
+#ifdef SUPPORT_UCP
+ BOOL use_ucp;
+#endif
+#ifndef COMPILE_PCRE32
+ jump_list *utfreadchar;
+#endif
+#ifdef COMPILE_PCRE8
+ jump_list *utfreadtype8;
+#endif
+#endif /* SUPPORT_UTF */
+#ifdef SUPPORT_UCP
+ jump_list *getucd;
+#endif
+} compiler_common;
+
+/* For byte_sequence_compare. */
+
+typedef struct compare_context {
+ int length;
+ int sourcereg;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+ int ucharptr;
+ union {
+ sljit_si asint;
+ sljit_uh asushort;
+#if defined COMPILE_PCRE8
+ sljit_ub asbyte;
+ sljit_ub asuchars[4];
+#elif defined COMPILE_PCRE16
+ sljit_uh asuchars[2];
+#elif defined COMPILE_PCRE32
+ sljit_ui asuchars[1];
+#endif
+ } c;
+ union {
+ sljit_si asint;
+ sljit_uh asushort;
+#if defined COMPILE_PCRE8
+ sljit_ub asbyte;
+ sljit_ub asuchars[4];
+#elif defined COMPILE_PCRE16
+ sljit_uh asuchars[2];
+#elif defined COMPILE_PCRE32
+ sljit_ui asuchars[1];
+#endif
+ } oc;
+#endif
+} compare_context;
+
+/* Undefine sljit macros. */
+#undef CMP
+
+/* Used for accessing the elements of the stack. */
+#define STACK(i) ((-(i) - 1) * (int)sizeof(sljit_sw))
+
+#define TMP1 SLJIT_SCRATCH_REG1
+#define TMP2 SLJIT_SCRATCH_REG3
+#define TMP3 SLJIT_TEMPORARY_EREG2
+#define STR_PTR SLJIT_SAVED_REG1
+#define STR_END SLJIT_SAVED_REG2
+#define STACK_TOP SLJIT_SCRATCH_REG2
+#define STACK_LIMIT SLJIT_SAVED_REG3
+#define ARGUMENTS SLJIT_SAVED_EREG1
+#define COUNT_MATCH SLJIT_SAVED_EREG2
+#define RETURN_ADDR SLJIT_TEMPORARY_EREG1
+
+/* Local space layout. */
+/* These two locals can be used by the current opcode. */
+#define LOCALS0 (0 * sizeof(sljit_sw))
+#define LOCALS1 (1 * sizeof(sljit_sw))
+/* Two local variables for possessive quantifiers (char1 cannot use them). */
+#define POSSESSIVE0 (2 * sizeof(sljit_sw))
+#define POSSESSIVE1 (3 * sizeof(sljit_sw))
+/* Max limit of recursions. */
+#define LIMIT_MATCH (4 * sizeof(sljit_sw))
+/* The output vector is stored on the stack, and contains pointers
+to characters. The vector data is divided into two groups: the first
+group contains the start / end character pointers, and the second is
+the start pointers when the end of the capturing group has not yet reached. */
+#define OVECTOR_START (common->ovector_start)
+#define OVECTOR(i) (OVECTOR_START + (i) * sizeof(sljit_sw))
+#define OVECTOR_PRIV(i) (common->cbra_ptr + (i) * sizeof(sljit_sw))
+#define PRIVATE_DATA(cc) (common->private_data_ptrs[(cc) - common->start])
+
+#if defined COMPILE_PCRE8
+#define MOV_UCHAR SLJIT_MOV_UB
+#define MOVU_UCHAR SLJIT_MOVU_UB
+#elif defined COMPILE_PCRE16
+#define MOV_UCHAR SLJIT_MOV_UH
+#define MOVU_UCHAR SLJIT_MOVU_UH
+#elif defined COMPILE_PCRE32
+#define MOV_UCHAR SLJIT_MOV_UI
+#define MOVU_UCHAR SLJIT_MOVU_UI
+#else
+#error Unsupported compiling mode
+#endif
+
+/* Shortcuts. */
+#define DEFINE_COMPILER \
+ struct sljit_compiler *compiler = common->compiler
+#define OP1(op, dst, dstw, src, srcw) \
+ sljit_emit_op1(compiler, (op), (dst), (dstw), (src), (srcw))
+#define OP2(op, dst, dstw, src1, src1w, src2, src2w) \
+ sljit_emit_op2(compiler, (op), (dst), (dstw), (src1), (src1w), (src2), (src2w))
+#define LABEL() \
+ sljit_emit_label(compiler)
+#define JUMP(type) \
+ sljit_emit_jump(compiler, (type))
+#define JUMPTO(type, label) \
+ sljit_set_label(sljit_emit_jump(compiler, (type)), (label))
+#define JUMPHERE(jump) \
+ sljit_set_label((jump), sljit_emit_label(compiler))
+#define SET_LABEL(jump, label) \
+ sljit_set_label((jump), (label))
+#define CMP(type, src1, src1w, src2, src2w) \
+ sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))
+#define CMPTO(type, src1, src1w, src2, src2w, label) \
+ sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))
+#define OP_FLAGS(op, dst, dstw, src, srcw, type) \
+ sljit_emit_op_flags(compiler, (op), (dst), (dstw), (src), (srcw), (type))
+#define GET_LOCAL_BASE(dst, dstw, offset) \
+ sljit_get_local_base(compiler, (dst), (dstw), (offset))
+
+static pcre_uchar* bracketend(pcre_uchar* cc)
+{
+SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
+do cc += GET(cc, 1); while (*cc == OP_ALT);
+SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS);
+cc += 1 + LINK_SIZE;
+return cc;
+}
+
+/* Functions whose might need modification for all new supported opcodes:
+ next_opcode
+ check_opcode_types
+ set_private_data_ptrs
+ get_framesize
+ init_frame
+ get_private_data_copy_length
+ copy_private_data
+ compile_matchingpath
+ compile_backtrackingpath
+*/
+
+static pcre_uchar *next_opcode(compiler_common *common, pcre_uchar *cc)
+{
+SLJIT_UNUSED_ARG(common);
+switch(*cc)
+ {
+ case OP_SOD:
+ case OP_SOM:
+ case OP_SET_SOM:
+ case OP_NOT_WORD_BOUNDARY:
+ case OP_WORD_BOUNDARY:
+ case OP_NOT_DIGIT:
+ case OP_DIGIT:
+ case OP_NOT_WHITESPACE:
+ case OP_WHITESPACE:
+ case OP_NOT_WORDCHAR:
+ case OP_WORDCHAR:
+ case OP_ANY:
+ case OP_ALLANY:
+ case OP_NOTPROP:
+ case OP_PROP:
+ case OP_ANYNL:
+ case OP_NOT_HSPACE:
+ case OP_HSPACE:
+ case OP_NOT_VSPACE:
+ case OP_VSPACE:
+ case OP_EXTUNI:
+ case OP_EODN:
+ case OP_EOD:
+ case OP_CIRC:
+ case OP_CIRCM:
+ case OP_DOLL:
+ case OP_DOLLM:
+ case OP_CRSTAR:
+ case OP_CRMINSTAR:
+ case OP_CRPLUS:
+ case OP_CRMINPLUS:
+ case OP_CRQUERY:
+ case OP_CRMINQUERY:
+ case OP_CRRANGE:
+ case OP_CRMINRANGE:
+ case OP_CLASS:
+ case OP_NCLASS:
+ case OP_REF:
+ case OP_REFI:
+ case OP_RECURSE:
+ case OP_CALLOUT:
+ case OP_ALT:
+ case OP_KET:
+ case OP_KETRMAX:
+ case OP_KETRMIN:
+ case OP_KETRPOS:
+ case OP_REVERSE:
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRA:
+ case OP_BRAPOS:
+ case OP_CBRA:
+ case OP_CBRAPOS:
+ case OP_COND:
+ case OP_SBRA:
+ case OP_SBRAPOS:
+ case OP_SCBRA:
+ case OP_SCBRAPOS:
+ case OP_SCOND:
+ case OP_CREF:
+ case OP_NCREF:
+ case OP_RREF:
+ case OP_NRREF:
+ case OP_DEF:
+ case OP_BRAZERO:
+ case OP_BRAMINZERO:
+ case OP_BRAPOSZERO:
+ case OP_PRUNE:
+ case OP_SKIP:
+ case OP_THEN:
+ case OP_COMMIT:
+ case OP_FAIL:
+ case OP_ACCEPT:
+ case OP_ASSERT_ACCEPT:
+ case OP_CLOSE:
+ case OP_SKIPZERO:
+ return cc + PRIV(OP_lengths)[*cc];
+
+ case OP_CHAR:
+ case OP_CHARI:
+ case OP_NOT:
+ case OP_NOTI:
+ case OP_STAR:
+ case OP_MINSTAR:
+ case OP_PLUS:
+ case OP_MINPLUS:
+ case OP_QUERY:
+ case OP_MINQUERY:
+ case OP_UPTO:
+ case OP_MINUPTO:
+ case OP_EXACT:
+ case OP_POSSTAR:
+ case OP_POSPLUS:
+ case OP_POSQUERY:
+ case OP_POSUPTO:
+ case OP_STARI:
+ case OP_MINSTARI:
+ case OP_PLUSI:
+ case OP_MINPLUSI:
+ case OP_QUERYI:
+ case OP_MINQUERYI:
+ case OP_UPTOI:
+ case OP_MINUPTOI:
+ case OP_EXACTI:
+ case OP_POSSTARI:
+ case OP_POSPLUSI:
+ case OP_POSQUERYI:
+ case OP_POSUPTOI:
+ case OP_NOTSTAR:
+ case OP_NOTMINSTAR:
+ case OP_NOTPLUS:
+ case OP_NOTMINPLUS:
+ case OP_NOTQUERY:
+ case OP_NOTMINQUERY:
+ case OP_NOTUPTO:
+ case OP_NOTMINUPTO:
+ case OP_NOTEXACT:
+ case OP_NOTPOSSTAR:
+ case OP_NOTPOSPLUS:
+ case OP_NOTPOSQUERY:
+ case OP_NOTPOSUPTO:
+ case OP_NOTSTARI:
+ case OP_NOTMINSTARI:
+ case OP_NOTPLUSI:
+ case OP_NOTMINPLUSI:
+ case OP_NOTQUERYI:
+ case OP_NOTMINQUERYI:
+ case OP_NOTUPTOI:
+ case OP_NOTMINUPTOI:
+ case OP_NOTEXACTI:
+ case OP_NOTPOSSTARI:
+ case OP_NOTPOSPLUSI:
+ case OP_NOTPOSQUERYI:
+ case OP_NOTPOSUPTOI:
+ cc += PRIV(OP_lengths)[*cc];
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ return cc;
+
+ /* Special cases. */
+ case OP_TYPESTAR:
+ case OP_TYPEMINSTAR:
+ case OP_TYPEPLUS:
+ case OP_TYPEMINPLUS:
+ case OP_TYPEQUERY:
+ case OP_TYPEMINQUERY:
+ case OP_TYPEUPTO:
+ case OP_TYPEMINUPTO:
+ case OP_TYPEEXACT:
+ case OP_TYPEPOSSTAR:
+ case OP_TYPEPOSPLUS:
+ case OP_TYPEPOSQUERY:
+ case OP_TYPEPOSUPTO:
+ return cc + PRIV(OP_lengths)[*cc] - 1;
+
+ case OP_ANYBYTE:
+#ifdef SUPPORT_UTF
+ if (common->utf) return NULL;
+#endif
+ return cc + 1;
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ case OP_XCLASS:
+ return cc + GET(cc, 1);
+#endif
+
+ case OP_MARK:
+ case OP_PRUNE_ARG:
+ case OP_SKIP_ARG:
+ case OP_THEN_ARG:
+ return cc + 1 + 2 + cc[1];
+
+ default:
+ /* All opcodes are supported now! */
+ SLJIT_ASSERT_STOP();
+ return NULL;
+ }
+}
+
+static BOOL check_opcode_types(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)
+{
+pcre_uchar *name;
+pcre_uchar *name2;
+unsigned int cbra_index;
+int i;
+
+/* Calculate important variables (like stack size) and checks whether all opcodes are supported. */
+while (cc < ccend)
+ {
+ switch(*cc)
+ {
+ case OP_SET_SOM:
+ common->has_set_som = TRUE;
+ cc += 1;
+ break;
+
+ case OP_REF:
+ case OP_REFI:
+ common->optimized_cbracket[GET2(cc, 1)] = 0;
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_CBRAPOS:
+ case OP_SCBRAPOS:
+ common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] = 0;
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_COND:
+ case OP_SCOND:
+ /* Only AUTO_CALLOUT can insert this opcode. We do
+ not intend to support this case. */
+ if (cc[1 + LINK_SIZE] == OP_CALLOUT)
+ return FALSE;
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CREF:
+ i = GET2(cc, 1);
+ common->optimized_cbracket[i] = 0;
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_NCREF:
+ cbra_index = GET2(cc, 1);
+ name = (pcre_uchar *)common->name_table;
+ name2 = name;
+ for (i = 0; i < common->name_count; i++)
+ {
+ if (GET2(name, 0) == cbra_index) break;
+ name += common->name_entry_size;
+ }
+ SLJIT_ASSERT(i != common->name_count);
+
+ for (i = 0; i < common->name_count; i++)
+ {
+ if (STRCMP_UC_UC(name2 + IMM2_SIZE, name + IMM2_SIZE) == 0)
+ common->optimized_cbracket[GET2(name2, 0)] = 0;
+ name2 += common->name_entry_size;
+ }
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_RECURSE:
+ /* Set its value only once. */
+ if (common->recursive_head_ptr == 0)
+ {
+ common->recursive_head_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CALLOUT:
+ if (common->capture_last_ptr == 0)
+ {
+ common->capture_last_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+ cc += 2 + 2 * LINK_SIZE;
+ break;
+
+ case OP_THEN_ARG:
+ common->has_then = TRUE;
+ common->control_head_ptr = 1;
+ /* Fall through. */
+
+ case OP_PRUNE_ARG:
+ common->needs_start_ptr = TRUE;
+ /* Fall through. */
+
+ case OP_MARK:
+ if (common->mark_ptr == 0)
+ {
+ common->mark_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+ cc += 1 + 2 + cc[1];
+ break;
+
+ case OP_THEN:
+ common->has_then = TRUE;
+ common->control_head_ptr = 1;
+ /* Fall through. */
+
+ case OP_PRUNE:
+ case OP_SKIP:
+ common->needs_start_ptr = TRUE;
+ cc += 1;
+ break;
+
+ case OP_SKIP_ARG:
+ common->control_head_ptr = 1;
+ common->has_skip_arg = TRUE;
+ cc += 1 + 2 + cc[1];
+ break;
+
+ default:
+ cc = next_opcode(common, cc);
+ if (cc == NULL)
+ return FALSE;
+ break;
+ }
+ }
+return TRUE;
+}
+
+static int get_class_iterator_size(pcre_uchar *cc)
+{
+switch(*cc)
+ {
+ case OP_CRSTAR:
+ case OP_CRPLUS:
+ return 2;
+
+ case OP_CRMINSTAR:
+ case OP_CRMINPLUS:
+ case OP_CRQUERY:
+ case OP_CRMINQUERY:
+ return 1;
+
+ case OP_CRRANGE:
+ case OP_CRMINRANGE:
+ if (GET2(cc, 1) == GET2(cc, 1 + IMM2_SIZE))
+ return 0;
+ return 2;
+
+ default:
+ return 0;
+ }
+}
+
+static BOOL detect_repeat(compiler_common *common, pcre_uchar *begin)
+{
+pcre_uchar *end = bracketend(begin);
+pcre_uchar *next;
+pcre_uchar *next_end;
+pcre_uchar *max_end;
+pcre_uchar type;
+sljit_sw length = end - begin;
+int min, max, i;
+
+/* Detect fixed iterations first. */
+if (end[-(1 + LINK_SIZE)] != OP_KET)
+ return FALSE;
+
+/* Already detected repeat. */
+if (common->private_data_ptrs[end - common->start - LINK_SIZE] != 0)
+ return TRUE;
+
+next = end;
+min = 1;
+while (1)
+ {
+ if (*next != *begin)
+ break;
+ next_end = bracketend(next);
+ if (next_end - next != length || memcmp(begin, next, IN_UCHARS(length)) != 0)
+ break;
+ next = next_end;
+ min++;
+ }
+
+if (min == 2)
+ return FALSE;
+
+max = 0;
+max_end = next;
+if (*next == OP_BRAZERO || *next == OP_BRAMINZERO)
+ {
+ type = *next;
+ while (1)
+ {
+ if (next[0] != type || next[1] != OP_BRA || next[2 + LINK_SIZE] != *begin)
+ break;
+ next_end = bracketend(next + 2 + LINK_SIZE);
+ if (next_end - next != (length + 2 + LINK_SIZE) || memcmp(begin, next + 2 + LINK_SIZE, IN_UCHARS(length)) != 0)
+ break;
+ next = next_end;
+ max++;
+ }
+
+ if (next[0] == type && next[1] == *begin && max >= 1)
+ {
+ next_end = bracketend(next + 1);
+ if (next_end - next == (length + 1) && memcmp(begin, next + 1, IN_UCHARS(length)) == 0)
+ {
+ for (i = 0; i < max; i++, next_end += 1 + LINK_SIZE)
+ if (*next_end != OP_KET)
+ break;
+
+ if (i == max)
+ {
+ common->private_data_ptrs[max_end - common->start - LINK_SIZE] = next_end - max_end;
+ common->private_data_ptrs[max_end - common->start - LINK_SIZE + 1] = (type == OP_BRAZERO) ? OP_UPTO : OP_MINUPTO;
+ /* +2 the original and the last. */
+ common->private_data_ptrs[max_end - common->start - LINK_SIZE + 2] = max + 2;
+ if (min == 1)
+ return TRUE;
+ min--;
+ max_end -= (1 + LINK_SIZE) + GET(max_end, -LINK_SIZE);
+ }
+ }
+ }
+ }
+
+if (min >= 3)
+ {
+ common->private_data_ptrs[end - common->start - LINK_SIZE] = max_end - end;
+ common->private_data_ptrs[end - common->start - LINK_SIZE + 1] = OP_EXACT;
+ common->private_data_ptrs[end - common->start - LINK_SIZE + 2] = min;
+ return TRUE;
+ }
+
+return FALSE;
+}
+
+#define CASE_ITERATOR_PRIVATE_DATA_1 \
+ case OP_MINSTAR: \
+ case OP_MINPLUS: \
+ case OP_QUERY: \
+ case OP_MINQUERY: \
+ case OP_MINSTARI: \
+ case OP_MINPLUSI: \
+ case OP_QUERYI: \
+ case OP_MINQUERYI: \
+ case OP_NOTMINSTAR: \
+ case OP_NOTMINPLUS: \
+ case OP_NOTQUERY: \
+ case OP_NOTMINQUERY: \
+ case OP_NOTMINSTARI: \
+ case OP_NOTMINPLUSI: \
+ case OP_NOTQUERYI: \
+ case OP_NOTMINQUERYI:
+
+#define CASE_ITERATOR_PRIVATE_DATA_2A \
+ case OP_STAR: \
+ case OP_PLUS: \
+ case OP_STARI: \
+ case OP_PLUSI: \
+ case OP_NOTSTAR: \
+ case OP_NOTPLUS: \
+ case OP_NOTSTARI: \
+ case OP_NOTPLUSI:
+
+#define CASE_ITERATOR_PRIVATE_DATA_2B \
+ case OP_UPTO: \
+ case OP_MINUPTO: \
+ case OP_UPTOI: \
+ case OP_MINUPTOI: \
+ case OP_NOTUPTO: \
+ case OP_NOTMINUPTO: \
+ case OP_NOTUPTOI: \
+ case OP_NOTMINUPTOI:
+
+#define CASE_ITERATOR_TYPE_PRIVATE_DATA_1 \
+ case OP_TYPEMINSTAR: \
+ case OP_TYPEMINPLUS: \
+ case OP_TYPEQUERY: \
+ case OP_TYPEMINQUERY:
+
+#define CASE_ITERATOR_TYPE_PRIVATE_DATA_2A \
+ case OP_TYPESTAR: \
+ case OP_TYPEPLUS:
+
+#define CASE_ITERATOR_TYPE_PRIVATE_DATA_2B \
+ case OP_TYPEUPTO: \
+ case OP_TYPEMINUPTO:
+
+static void set_private_data_ptrs(compiler_common *common, int *private_data_start, pcre_uchar *ccend)
+{
+pcre_uchar *cc = common->start;
+pcre_uchar *alternative;
+pcre_uchar *end = NULL;
+int private_data_ptr = *private_data_start;
+int space, size, bracketlen;
+
+while (cc < ccend)
+ {
+ space = 0;
+ size = 0;
+ bracketlen = 0;
+ if (private_data_ptr > SLJIT_MAX_LOCAL_SIZE)
+ return;
+
+ if (*cc == OP_ONCE || *cc == OP_ONCE_NC || *cc == OP_BRA || *cc == OP_CBRA || *cc == OP_COND)
+ if (detect_repeat(common, cc))
+ {
+ /* These brackets are converted to repeats, so no global
+ based single character repeat is allowed. */
+ if (cc >= end)
+ end = bracketend(cc);
+ }
+
+ switch(*cc)
+ {
+ case OP_KET:
+ if (common->private_data_ptrs[cc + 1 - common->start] != 0)
+ {
+ common->private_data_ptrs[cc - common->start] = private_data_ptr;
+ private_data_ptr += sizeof(sljit_sw);
+ cc += common->private_data_ptrs[cc + 1 - common->start];
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRAPOS:
+ case OP_SBRA:
+ case OP_SBRAPOS:
+ case OP_SCOND:
+ common->private_data_ptrs[cc - common->start] = private_data_ptr;
+ private_data_ptr += sizeof(sljit_sw);
+ bracketlen = 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRAPOS:
+ case OP_SCBRAPOS:
+ common->private_data_ptrs[cc - common->start] = private_data_ptr;
+ private_data_ptr += sizeof(sljit_sw);
+ bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_COND:
+ /* Might be a hidden SCOND. */
+ alternative = cc + GET(cc, 1);
+ if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+ {
+ common->private_data_ptrs[cc - common->start] = private_data_ptr;
+ private_data_ptr += sizeof(sljit_sw);
+ }
+ bracketlen = 1 + LINK_SIZE;
+ break;
+
+ case OP_BRA:
+ bracketlen = 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRA:
+ case OP_SCBRA:
+ bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_1
+ space = 1;
+ size = -2;
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2A
+ space = 2;
+ size = -2;
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2B
+ space = 2;
+ size = -(2 + IMM2_SIZE);
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_1
+ space = 1;
+ size = 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
+ if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI)
+ space = 2;
+ size = 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
+ if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI)
+ space = 2;
+ size = 1 + IMM2_SIZE;
+ break;
+
+ case OP_CLASS:
+ case OP_NCLASS:
+ size += 1 + 32 / sizeof(pcre_uchar);
+ space = get_class_iterator_size(cc + size);
+ break;
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ case OP_XCLASS:
+ size = GET(cc, 1);
+ space = get_class_iterator_size(cc + size);
+ break;
+#endif
+
+ default:
+ cc = next_opcode(common, cc);
+ SLJIT_ASSERT(cc != NULL);
+ break;
+ }
+
+ /* Character iterators, which are not inside a repeated bracket,
+ gets a private slot instead of allocating it on the stack. */
+ if (space > 0 && cc >= end)
+ {
+ common->private_data_ptrs[cc - common->start] = private_data_ptr;
+ private_data_ptr += sizeof(sljit_sw) * space;
+ }
+
+ if (size != 0)
+ {
+ if (size < 0)
+ {
+ cc += -size;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ }
+ else
+ cc += size;
+ }
+
+ if (bracketlen > 0)
+ {
+ if (cc >= end)
+ {
+ end = bracketend(cc);
+ if (end[-1 - LINK_SIZE] == OP_KET)
+ end = NULL;
+ }
+ cc += bracketlen;
+ }
+ }
+*private_data_start = private_data_ptr;
+}
+
+/* Returns with a frame_types (always < 0) if no need for frame. */
+static int get_framesize(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, BOOL recursive, BOOL* needs_control_head)
+{
+int length = 0;
+int possessive = 0;
+BOOL stack_restore = FALSE;
+BOOL setsom_found = recursive;
+BOOL setmark_found = recursive;
+/* The last capture is a local variable even for recursions. */
+BOOL capture_last_found = FALSE;
+
+#if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD
+SLJIT_ASSERT(common->control_head_ptr != 0);
+*needs_control_head = TRUE;
+#else
+*needs_control_head = FALSE;
+#endif
+
+if (ccend == NULL)
+ {
+ ccend = bracketend(cc) - (1 + LINK_SIZE);
+ if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS))
+ {
+ possessive = length = (common->capture_last_ptr != 0) ? 5 : 3;
+ /* This is correct regardless of common->capture_last_ptr. */
+ capture_last_found = TRUE;
+ }
+ cc = next_opcode(common, cc);
+ }
+
+SLJIT_ASSERT(cc != NULL);
+while (cc < ccend)
+ switch(*cc)
+ {
+ case OP_SET_SOM:
+ SLJIT_ASSERT(common->has_set_som);
+ stack_restore = TRUE;
+ if (!setsom_found)
+ {
+ length += 2;
+ setsom_found = TRUE;
+ }
+ cc += 1;
+ break;
+
+ case OP_MARK:
+ case OP_PRUNE_ARG:
+ case OP_THEN_ARG:
+ SLJIT_ASSERT(common->mark_ptr != 0);
+ stack_restore = TRUE;
+ if (!setmark_found)
+ {
+ length += 2;
+ setmark_found = TRUE;
+ }
+ if (common->control_head_ptr != 0)
+ *needs_control_head = TRUE;
+ cc += 1 + 2 + cc[1];
+ break;
+
+ case OP_RECURSE:
+ stack_restore = TRUE;
+ if (common->has_set_som && !setsom_found)
+ {
+ length += 2;
+ setsom_found = TRUE;
+ }
+ if (common->mark_ptr != 0 && !setmark_found)
+ {
+ length += 2;
+ setmark_found = TRUE;
+ }
+ if (common->capture_last_ptr != 0 && !capture_last_found)
+ {
+ length += 2;
+ capture_last_found = TRUE;
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRA:
+ case OP_CBRAPOS:
+ case OP_SCBRA:
+ case OP_SCBRAPOS:
+ stack_restore = TRUE;
+ if (common->capture_last_ptr != 0 && !capture_last_found)
+ {
+ length += 2;
+ capture_last_found = TRUE;
+ }
+ length += 3;
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ default:
+ stack_restore = TRUE;
+ /* Fall through. */
+
+ case OP_NOT_WORD_BOUNDARY:
+ case OP_WORD_BOUNDARY:
+ case OP_NOT_DIGIT:
+ case OP_DIGIT:
+ case OP_NOT_WHITESPACE:
+ case OP_WHITESPACE:
+ case OP_NOT_WORDCHAR:
+ case OP_WORDCHAR:
+ case OP_ANY:
+ case OP_ALLANY:
+ case OP_ANYBYTE:
+ case OP_NOTPROP:
+ case OP_PROP:
+ case OP_ANYNL:
+ case OP_NOT_HSPACE:
+ case OP_HSPACE:
+ case OP_NOT_VSPACE:
+ case OP_VSPACE:
+ case OP_EXTUNI:
+ case OP_EODN:
+ case OP_EOD:
+ case OP_CIRC:
+ case OP_CIRCM:
+ case OP_DOLL:
+ case OP_DOLLM:
+ case OP_CHAR:
+ case OP_CHARI:
+ case OP_NOT:
+ case OP_NOTI:
+
+ case OP_EXACT:
+ case OP_POSSTAR:
+ case OP_POSPLUS:
+ case OP_POSQUERY:
+ case OP_POSUPTO:
+
+ case OP_EXACTI:
+ case OP_POSSTARI:
+ case OP_POSPLUSI:
+ case OP_POSQUERYI:
+ case OP_POSUPTOI:
+
+ case OP_NOTEXACT:
+ case OP_NOTPOSSTAR:
+ case OP_NOTPOSPLUS:
+ case OP_NOTPOSQUERY:
+ case OP_NOTPOSUPTO:
+
+ case OP_NOTEXACTI:
+ case OP_NOTPOSSTARI:
+ case OP_NOTPOSPLUSI:
+ case OP_NOTPOSQUERYI:
+ case OP_NOTPOSUPTOI:
+
+ case OP_TYPEEXACT:
+ case OP_TYPEPOSSTAR:
+ case OP_TYPEPOSPLUS:
+ case OP_TYPEPOSQUERY:
+ case OP_TYPEPOSUPTO:
+
+ case OP_CLASS:
+ case OP_NCLASS:
+ case OP_XCLASS:
+
+ cc = next_opcode(common, cc);
+ SLJIT_ASSERT(cc != NULL);
+ break;
+ }
+
+/* Possessive quantifiers can use a special case. */
+if (SLJIT_UNLIKELY(possessive == length))
+ return stack_restore ? no_frame : no_stack;
+
+if (length > 0)
+ return length + 1;
+return stack_restore ? no_frame : no_stack;
+}
+
+static void init_frame(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, int stackpos, int stacktop, BOOL recursive)
+{
+DEFINE_COMPILER;
+BOOL setsom_found = recursive;
+BOOL setmark_found = recursive;
+/* The last capture is a local variable even for recursions. */
+BOOL capture_last_found = FALSE;
+int offset;
+
+/* >= 1 + shortest item size (2) */
+SLJIT_UNUSED_ARG(stacktop);
+SLJIT_ASSERT(stackpos >= stacktop + 2);
+
+stackpos = STACK(stackpos);
+if (ccend == NULL)
+ {
+ ccend = bracketend(cc) - (1 + LINK_SIZE);
+ if (recursive || (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS))
+ cc = next_opcode(common, cc);
+ }
+
+SLJIT_ASSERT(cc != NULL);
+while (cc < ccend)
+ switch(*cc)
+ {
+ case OP_SET_SOM:
+ SLJIT_ASSERT(common->has_set_som);
+ if (!setsom_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ setsom_found = TRUE;
+ }
+ cc += 1;
+ break;
+
+ case OP_MARK:
+ case OP_PRUNE_ARG:
+ case OP_THEN_ARG:
+ SLJIT_ASSERT(common->mark_ptr != 0);
+ if (!setmark_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ setmark_found = TRUE;
+ }
+ cc += 1 + 2 + cc[1];
+ break;
+
+ case OP_RECURSE:
+ if (common->has_set_som && !setsom_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ setsom_found = TRUE;
+ }
+ if (common->mark_ptr != 0 && !setmark_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ setmark_found = TRUE;
+ }
+ if (common->capture_last_ptr != 0 && !capture_last_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ capture_last_found = TRUE;
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRA:
+ case OP_CBRAPOS:
+ case OP_SCBRA:
+ case OP_SCBRAPOS:
+ if (common->capture_last_ptr != 0 && !capture_last_found)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ capture_last_found = TRUE;
+ }
+ offset = (GET2(cc, 1 + LINK_SIZE)) << 1;
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+ stackpos += (int)sizeof(sljit_sw);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);
+ stackpos += (int)sizeof(sljit_sw);
+
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ default:
+ cc = next_opcode(common, cc);
+ SLJIT_ASSERT(cc != NULL);
+ break;
+ }
+
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, 0);
+SLJIT_ASSERT(stackpos == STACK(stacktop));
+}
+
+static SLJIT_INLINE int get_private_data_copy_length(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, BOOL needs_control_head)
+{
+int private_data_length = needs_control_head ? 3 : 2;
+int size;
+pcre_uchar *alternative;
+/* Calculate the sum of the private machine words. */
+while (cc < ccend)
+ {
+ size = 0;
+ switch(*cc)
+ {
+ case OP_KET:
+ if (PRIVATE_DATA(cc) != 0)
+ private_data_length++;
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRAPOS:
+ case OP_SBRA:
+ case OP_SBRAPOS:
+ case OP_SCOND:
+ private_data_length++;
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRA:
+ case OP_SCBRA:
+ if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
+ private_data_length++;
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_CBRAPOS:
+ case OP_SCBRAPOS:
+ private_data_length += 2;
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_COND:
+ /* Might be a hidden SCOND. */
+ alternative = cc + GET(cc, 1);
+ if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+ private_data_length++;
+ cc += 1 + LINK_SIZE;
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_1
+ if (PRIVATE_DATA(cc))
+ private_data_length++;
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2A
+ if (PRIVATE_DATA(cc))
+ private_data_length += 2;
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2B
+ if (PRIVATE_DATA(cc))
+ private_data_length += 2;
+ cc += 2 + IMM2_SIZE;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_1
+ if (PRIVATE_DATA(cc))
+ private_data_length++;
+ cc += 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
+ if (PRIVATE_DATA(cc))
+ private_data_length += 2;
+ cc += 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
+ if (PRIVATE_DATA(cc))
+ private_data_length += 2;
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_CLASS:
+ case OP_NCLASS:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ case OP_XCLASS:
+ size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(pcre_uchar);
+#else
+ size = 1 + 32 / (int)sizeof(pcre_uchar);
+#endif
+ if (PRIVATE_DATA(cc))
+ private_data_length += get_class_iterator_size(cc + size);
+ cc += size;
+ break;
+
+ default:
+ cc = next_opcode(common, cc);
+ SLJIT_ASSERT(cc != NULL);
+ break;
+ }
+ }
+SLJIT_ASSERT(cc == ccend);
+return private_data_length;
+}
+
+static void copy_private_data(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend,
+ BOOL save, int stackptr, int stacktop, BOOL needs_control_head)
+{
+DEFINE_COMPILER;
+int srcw[2];
+int count, size;
+BOOL tmp1next = TRUE;
+BOOL tmp1empty = TRUE;
+BOOL tmp2empty = TRUE;
+pcre_uchar *alternative;
+enum {
+ start,
+ loop,
+ end
+} status;
+
+status = save ? start : loop;
+stackptr = STACK(stackptr - 2);
+stacktop = STACK(stacktop - 1);
+
+if (!save)
+ {
+ stackptr += (needs_control_head ? 2 : 1) * sizeof(sljit_sw);
+ if (stackptr < stacktop)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+ stackptr += sizeof(sljit_sw);
+ tmp1empty = FALSE;
+ }
+ if (stackptr < stacktop)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+ stackptr += sizeof(sljit_sw);
+ tmp2empty = FALSE;
+ }
+ /* The tmp1next must be TRUE in either way. */
+ }
+
+do
+ {
+ count = 0;
+ switch(status)
+ {
+ case start:
+ SLJIT_ASSERT(save && common->recursive_head_ptr != 0);
+ count = 1;
+ srcw[0] = common->recursive_head_ptr;
+ if (needs_control_head)
+ {
+ SLJIT_ASSERT(common->control_head_ptr != 0);
+ count = 2;
+ srcw[1] = common->control_head_ptr;
+ }
+ status = loop;
+ break;
+
+ case loop:
+ if (cc >= ccend)
+ {
+ status = end;
+ break;
+ }
+
+ switch(*cc)
+ {
+ case OP_KET:
+ if (PRIVATE_DATA(cc) != 0)
+ {
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRAPOS:
+ case OP_SBRA:
+ case OP_SBRAPOS:
+ case OP_SCOND:
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ SLJIT_ASSERT(srcw[0] != 0);
+ cc += 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRA:
+ case OP_SCBRA:
+ if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
+ {
+ count = 1;
+ srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
+ }
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_CBRAPOS:
+ case OP_SCBRAPOS:
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
+ SLJIT_ASSERT(srcw[0] != 0 && srcw[1] != 0);
+ cc += 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ case OP_COND:
+ /* Might be a hidden SCOND. */
+ alternative = cc + GET(cc, 1);
+ if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+ {
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ SLJIT_ASSERT(srcw[0] != 0);
+ }
+ cc += 1 + LINK_SIZE;
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_1
+ if (PRIVATE_DATA(cc))
+ {
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ }
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2A
+ if (PRIVATE_DATA(cc))
+ {
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
+ }
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_PRIVATE_DATA_2B
+ if (PRIVATE_DATA(cc))
+ {
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
+ }
+ cc += 2 + IMM2_SIZE;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_1
+ if (PRIVATE_DATA(cc))
+ {
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ }
+ cc += 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
+ if (PRIVATE_DATA(cc))
+ {
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = srcw[0] + sizeof(sljit_sw);
+ }
+ cc += 1;
+ break;
+
+ CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
+ if (PRIVATE_DATA(cc))
+ {
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = srcw[0] + sizeof(sljit_sw);
+ }
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_CLASS:
+ case OP_NCLASS:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ case OP_XCLASS:
+ size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(pcre_uchar);
+#else
+ size = 1 + 32 / (int)sizeof(pcre_uchar);
+#endif
+ if (PRIVATE_DATA(cc))
+ switch(get_class_iterator_size(cc + size))
+ {
+ case 1:
+ count = 1;
+ srcw[0] = PRIVATE_DATA(cc);
+ break;
+
+ case 2:
+ count = 2;
+ srcw[0] = PRIVATE_DATA(cc);
+ srcw[1] = srcw[0] + sizeof(sljit_sw);
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+ cc += size;
+ break;
+
+ default:
+ cc = next_opcode(common, cc);
+ SLJIT_ASSERT(cc != NULL);
+ break;
+ }
+ break;
+
+ case end:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+
+ while (count > 0)
+ {
+ count--;
+ if (save)
+ {
+ if (tmp1next)
+ {
+ if (!tmp1empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);
+ tmp1empty = FALSE;
+ tmp1next = FALSE;
+ }
+ else
+ {
+ if (!tmp2empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);
+ tmp2empty = FALSE;
+ tmp1next = TRUE;
+ }
+ }
+ else
+ {
+ if (tmp1next)
+ {
+ SLJIT_ASSERT(!tmp1empty);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP1, 0);
+ tmp1empty = stackptr >= stacktop;
+ if (!tmp1empty)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+ stackptr += sizeof(sljit_sw);
+ }
+ tmp1next = FALSE;
+ }
+ else
+ {
+ SLJIT_ASSERT(!tmp2empty);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP2, 0);
+ tmp2empty = stackptr >= stacktop;
+ if (!tmp2empty)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+ stackptr += sizeof(sljit_sw);
+ }
+ tmp1next = TRUE;
+ }
+ }
+ }
+ }
+while (status != end);
+
+if (save)
+ {
+ if (tmp1next)
+ {
+ if (!tmp1empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ if (!tmp2empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ }
+ else
+ {
+ if (!tmp2empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ if (!tmp1empty)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+ stackptr += sizeof(sljit_sw);
+ }
+ }
+ }
+SLJIT_ASSERT(cc == ccend && stackptr == stacktop && (save || (tmp1empty && tmp2empty)));
+}
+
+static SLJIT_INLINE pcre_uchar *set_then_offsets(compiler_common *common, pcre_uchar *cc, pcre_uint8 *current_offset)
+{
+pcre_uchar *end = bracketend(cc);
+BOOL has_alternatives = cc[GET(cc, 1)] == OP_ALT;
+
+/* Assert captures then. */
+if (*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT)
+ current_offset = NULL;
+/* Conditional block does not. */
+if (*cc == OP_COND || *cc == OP_SCOND)
+ has_alternatives = FALSE;
+
+cc = next_opcode(common, cc);
+if (has_alternatives)
+ current_offset = common->then_offsets + (cc - common->start);
+
+while (cc < end)
+ {
+ if ((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND))
+ cc = set_then_offsets(common, cc, current_offset);
+ else
+ {
+ if (*cc == OP_ALT && has_alternatives)
+ current_offset = common->then_offsets + (cc + 1 + LINK_SIZE - common->start);
+ if (*cc >= OP_THEN && *cc <= OP_THEN_ARG && current_offset != NULL)
+ *current_offset = 1;
+ cc = next_opcode(common, cc);
+ }
+ }
+
+return end;
+}
+
+#undef CASE_ITERATOR_PRIVATE_DATA_1
+#undef CASE_ITERATOR_PRIVATE_DATA_2A
+#undef CASE_ITERATOR_PRIVATE_DATA_2B
+#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_1
+#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
+#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
+
+static SLJIT_INLINE BOOL is_powerof2(unsigned int value)
+{
+return (value & (value - 1)) == 0;
+}
+
+static SLJIT_INLINE void set_jumps(jump_list *list, struct sljit_label *label)
+{
+while (list)
+ {
+ /* sljit_set_label is clever enough to do nothing
+ if either the jump or the label is NULL. */
+ SET_LABEL(list->jump, label);
+ list = list->next;
+ }
+}
+
+static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump* jump)
+{
+jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list));
+if (list_item)
+ {
+ list_item->next = *list;
+ list_item->jump = jump;
+ *list = list_item;
+ }
+}
+
+static void add_stub(compiler_common *common, struct sljit_jump *start)
+{
+DEFINE_COMPILER;
+stub_list* list_item = sljit_alloc_memory(compiler, sizeof(stub_list));
+
+if (list_item)
+ {
+ list_item->start = start;
+ list_item->quit = LABEL();
+ list_item->next = common->stubs;
+ common->stubs = list_item;
+ }
+}
+
+static void flush_stubs(compiler_common *common)
+{
+DEFINE_COMPILER;
+stub_list* list_item = common->stubs;
+
+while (list_item)
+ {
+ JUMPHERE(list_item->start);
+ add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL));
+ JUMPTO(SLJIT_JUMP, list_item->quit);
+ list_item = list_item->next;
+ }
+common->stubs = NULL;
+}
+
+static SLJIT_INLINE void count_match(compiler_common *common)
+{
+DEFINE_COMPILER;
+
+OP2(SLJIT_SUB | SLJIT_SET_E, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1);
+add_jump(compiler, &common->calllimit, JUMP(SLJIT_C_ZERO));
+}
+
+static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)
+{
+/* May destroy all locals and registers except TMP2. */
+DEFINE_COMPILER;
+
+OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
+#ifdef DESTROY_REGISTERS
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);
+OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP1, 0);
+#endif
+add_stub(common, CMP(SLJIT_C_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));
+}
+
+static SLJIT_INLINE void free_stack(compiler_common *common, int size)
+{
+DEFINE_COMPILER;
+OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
+}
+
+static SLJIT_INLINE void reset_ovector(compiler_common *common, int length)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+int i;
+
+/* At this point we can freely use all temporary registers. */
+SLJIT_ASSERT(length > 1);
+/* TMP1 returns with begin - 1. */
+OP2(SLJIT_SUB, SLJIT_SCRATCH_REG1, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1));
+if (length < 8)
+ {
+ for (i = 1; i < length; i++)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(i), SLJIT_SCRATCH_REG1, 0);
+ }
+else
+ {
+ GET_LOCAL_BASE(SLJIT_SCRATCH_REG2, 0, OVECTOR_START);
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, length - 1);
+ loop = LABEL();
+ OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_SCRATCH_REG2), sizeof(sljit_sw), SLJIT_SCRATCH_REG1, 0);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_SCRATCH_REG3, 0, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, loop);
+ }
+}
+
+static SLJIT_INLINE void do_reset_match(compiler_common *common, int length)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+int i;
+
+SLJIT_ASSERT(length > 1);
+/* OVECTOR(1) contains the "string begin - 1" constant. */
+if (length > 2)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+if (length < 8)
+ {
+ for (i = 2; i < length; i++)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(i), TMP1, 0);
+ }
+else
+ {
+ GET_LOCAL_BASE(TMP2, 0, OVECTOR_START + sizeof(sljit_sw));
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2);
+ loop = LABEL();
+ OP1(SLJIT_MOVU, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
+ OP2(SLJIT_SUB | SLJIT_SET_E, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, loop);
+ }
+
+OP1(SLJIT_MOV, STACK_TOP, 0, ARGUMENTS, 0);
+if (common->mark_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, SLJIT_IMM, 0);
+if (common->control_head_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_IMM, 0);
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_ptr);
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(struct sljit_stack, base));
+}
+
+static sljit_sw SLJIT_CALL do_search_mark(sljit_sw *current, const pcre_uchar *skip_arg)
+{
+while (current != NULL)
+ {
+ switch (current[-2])
+ {
+ case type_then_trap:
+ break;
+
+ case type_mark:
+ if (STRCMP_UC_UC(skip_arg, (pcre_uchar *)current[-3]) == 0)
+ return current[-4];
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+ current = (sljit_sw*)current[-1];
+ }
+return -1;
+}
+
+static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *early_quit;
+
+/* At this point we can freely use all registers. */
+OP1(SLJIT_MOV, SLJIT_SAVED_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1), STR_PTR, 0);
+
+OP1(SLJIT_MOV, SLJIT_SCRATCH_REG1, 0, ARGUMENTS, 0);
+if (common->mark_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+OP1(SLJIT_MOV_SI, SLJIT_SCRATCH_REG2, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG1), SLJIT_OFFSETOF(jit_arguments, offset_count));
+if (common->mark_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SCRATCH_REG1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_SCRATCH_REG3, 0);
+OP2(SLJIT_SUB, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG1), SLJIT_OFFSETOF(jit_arguments, offsets), SLJIT_IMM, sizeof(int));
+OP1(SLJIT_MOV, SLJIT_SCRATCH_REG1, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG1), SLJIT_OFFSETOF(jit_arguments, begin));
+GET_LOCAL_BASE(SLJIT_SAVED_REG1, 0, OVECTOR_START);
+/* Unlikely, but possible */
+early_quit = CMP(SLJIT_C_EQUAL, SLJIT_SCRATCH_REG2, 0, SLJIT_IMM, 0);
+loop = LABEL();
+OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), 0, SLJIT_SCRATCH_REG1, 0);
+OP2(SLJIT_ADD, SLJIT_SAVED_REG1, 0, SLJIT_SAVED_REG1, 0, SLJIT_IMM, sizeof(sljit_sw));
+/* Copy the integer value to the output buffer */
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+OP1(SLJIT_MOVU_SI, SLJIT_MEM1(SLJIT_SCRATCH_REG3), sizeof(int), SLJIT_SAVED_REG2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_SCRATCH_REG2, 0, SLJIT_SCRATCH_REG2, 0, SLJIT_IMM, 1);
+JUMPTO(SLJIT_C_NOT_ZERO, loop);
+JUMPHERE(early_quit);
+
+/* Calculate the return value, which is the maximum ovector value. */
+if (topbracket > 1)
+ {
+ GET_LOCAL_BASE(SLJIT_SCRATCH_REG1, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG2, 0, SLJIT_IMM, topbracket + 1);
+
+ /* OVECTOR(0) is never equal to SLJIT_SAVED_REG3. */
+ loop = LABEL();
+ OP1(SLJIT_MOVU, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG1), -(2 * (sljit_sw)sizeof(sljit_sw)));
+ OP2(SLJIT_SUB, SLJIT_SCRATCH_REG2, 0, SLJIT_SCRATCH_REG2, 0, SLJIT_IMM, 1);
+ CMPTO(SLJIT_C_EQUAL, SLJIT_SCRATCH_REG3, 0, SLJIT_SAVED_REG3, 0, loop);
+ OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_SCRATCH_REG2, 0);
+ }
+else
+ OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
+}
+
+static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *quit)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+SLJIT_COMPILE_ASSERT(STR_END == SLJIT_SAVED_REG2, str_end_must_be_saved_reg2);
+SLJIT_ASSERT(common->start_used_ptr != 0 && common->start_ptr != 0
+ && (common->mode == JIT_PARTIAL_SOFT_COMPILE ? common->hit_start != 0 : common->hit_start == 0));
+
+OP1(SLJIT_MOV, SLJIT_SCRATCH_REG2, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_PARTIAL);
+OP1(SLJIT_MOV_SI, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG2), SLJIT_OFFSETOF(jit_arguments, real_offset_count));
+CMPTO(SLJIT_C_SIG_LESS, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, 2, quit);
+
+/* Store match begin and end. */
+OP1(SLJIT_MOV, SLJIT_SAVED_REG1, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG2), SLJIT_OFFSETOF(jit_arguments, begin));
+OP1(SLJIT_MOV, SLJIT_SCRATCH_REG2, 0, SLJIT_MEM1(SLJIT_SCRATCH_REG2), SLJIT_OFFSETOF(jit_arguments, offsets));
+
+jump = CMP(SLJIT_C_SIG_LESS, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, 3);
+OP2(SLJIT_SUB, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_ptr : (common->hit_start + (int)sizeof(sljit_sw)), SLJIT_SAVED_REG1, 0);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+OP2(SLJIT_ASHR, SLJIT_SCRATCH_REG3, 0, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_SCRATCH_REG2), 2 * sizeof(int), SLJIT_SCRATCH_REG3, 0);
+JUMPHERE(jump);
+
+OP1(SLJIT_MOV, SLJIT_SCRATCH_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_used_ptr : common->hit_start);
+OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, STR_END, 0, SLJIT_SAVED_REG1, 0);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_SCRATCH_REG2), sizeof(int), SLJIT_SAVED_REG2, 0);
+
+OP2(SLJIT_SUB, SLJIT_SCRATCH_REG3, 0, SLJIT_SCRATCH_REG3, 0, SLJIT_SAVED_REG1, 0);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+OP2(SLJIT_ASHR, SLJIT_SCRATCH_REG3, 0, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_SCRATCH_REG2), 0, SLJIT_SCRATCH_REG3, 0);
+
+JUMPTO(SLJIT_JUMP, quit);
+}
+
+static SLJIT_INLINE void check_start_used_ptr(compiler_common *common)
+{
+/* May destroy TMP1. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ /* The value of -1 must be kept for start_used_ptr! */
+ OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, 1);
+ /* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting
+ is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */
+ jump = CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+ JUMPHERE(jump);
+ }
+else if (common->mode == JIT_PARTIAL_HARD_COMPILE)
+ {
+ jump = CMP(SLJIT_C_LESS_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+ JUMPHERE(jump);
+ }
+}
+
+static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, pcre_uchar* cc)
+{
+/* Detects if the character has an othercase. */
+unsigned int c;
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+ {
+ GETCHAR(c, cc);
+ if (c > 127)
+ {
+#ifdef SUPPORT_UCP
+ return c != UCD_OTHERCASE(c);
+#else
+ return FALSE;
+#endif
+ }
+#ifndef COMPILE_PCRE8
+ return common->fcc[c] != c;
+#endif
+ }
+else
+#endif
+ c = *cc;
+return MAX_255(c) ? common->fcc[c] != c : FALSE;
+}
+
+static SLJIT_INLINE unsigned int char_othercase(compiler_common *common, unsigned int c)
+{
+/* Returns with the othercase. */
+#ifdef SUPPORT_UTF
+if (common->utf && c > 127)
+ {
+#ifdef SUPPORT_UCP
+ return UCD_OTHERCASE(c);
+#else
+ return c;
+#endif
+ }
+#endif
+return TABLE_GET(c, common->fcc, c);
+}
+
+static unsigned int char_get_othercase_bit(compiler_common *common, pcre_uchar* cc)
+{
+/* Detects if the character and its othercase has only 1 bit difference. */
+unsigned int c, oc, bit;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+int n;
+#endif
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+ {
+ GETCHAR(c, cc);
+ if (c <= 127)
+ oc = common->fcc[c];
+ else
+ {
+#ifdef SUPPORT_UCP
+ oc = UCD_OTHERCASE(c);
+#else
+ oc = c;
+#endif
+ }
+ }
+else
+ {
+ c = *cc;
+ oc = TABLE_GET(c, common->fcc, c);
+ }
+#else
+c = *cc;
+oc = TABLE_GET(c, common->fcc, c);
+#endif
+
+SLJIT_ASSERT(c != oc);
+
+bit = c ^ oc;
+/* Optimized for English alphabet. */
+if (c <= 127 && bit == 0x20)
+ return (0 << 8) | 0x20;
+
+/* Since c != oc, they must have at least 1 bit difference. */
+if (!is_powerof2(bit))
+ return 0;
+
+#if defined COMPILE_PCRE8
+
+#ifdef SUPPORT_UTF
+if (common->utf && c > 127)
+ {
+ n = GET_EXTRALEN(*cc);
+ while ((bit & 0x3f) == 0)
+ {
+ n--;
+ bit >>= 6;
+ }
+ return (n << 8) | bit;
+ }
+#endif /* SUPPORT_UTF */
+return (0 << 8) | bit;
+
+#elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+
+#ifdef SUPPORT_UTF
+if (common->utf && c > 65535)
+ {
+ if (bit >= (1 << 10))
+ bit >>= 10;
+ else
+ return (bit < 256) ? ((2 << 8) | bit) : ((3 << 8) | (bit >> 8));
+ }
+#endif /* SUPPORT_UTF */
+return (bit < 256) ? ((0 << 8) | bit) : ((1 << 8) | (bit >> 8));
+
+#endif /* COMPILE_PCRE[8|16|32] */
+}
+
+static void check_partial(compiler_common *common, BOOL force)
+{
+/* Checks whether a partial matching is occurred. Does not modify registers. */
+DEFINE_COMPILER;
+struct sljit_jump *jump = NULL;
+
+SLJIT_ASSERT(!force || common->mode != JIT_COMPILE);
+
+if (common->mode == JIT_COMPILE)
+ return;
+
+if (!force)
+ jump = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+else if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+ jump = CMP(SLJIT_C_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, -1);
+
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+else
+ {
+ if (common->partialmatchlabel != NULL)
+ JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+ else
+ add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+ }
+
+if (jump != NULL)
+ JUMPHERE(jump);
+}
+
+static void check_str_end(compiler_common *common, jump_list **end_reached)
+{
+/* Does not affect registers. Usually used in a tight spot. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (common->mode == JIT_COMPILE)
+ {
+ add_jump(compiler, end_reached, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+ return;
+ }
+
+jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ add_jump(compiler, end_reached, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+ add_jump(compiler, end_reached, JUMP(SLJIT_JUMP));
+ }
+else
+ {
+ add_jump(compiler, end_reached, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0));
+ if (common->partialmatchlabel != NULL)
+ JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+ else
+ add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+ }
+JUMPHERE(jump);
+}
+
+static void detect_partial_match(compiler_common *common, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (common->mode == JIT_COMPILE)
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+ return;
+ }
+
+/* Partial matching mode. */
+jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0));
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+ }
+else
+ {
+ if (common->partialmatchlabel != NULL)
+ JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+ else
+ add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+ }
+JUMPHERE(jump);
+}
+
+static void read_char(compiler_common *common)
+{
+/* Reads the character into TMP1, updates STR_PTR.
+Does not check STR_END. TMP2 Destroyed. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+struct sljit_jump *jump;
+#endif
+
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+if (common->utf)
+ {
+#if defined COMPILE_PCRE8
+ jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+#elif defined COMPILE_PCRE16
+ jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+#endif /* COMPILE_PCRE[8|16] */
+ add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
+ JUMPHERE(jump);
+ }
+#endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+}
+
+static void peek_char(compiler_common *common)
+{
+/* Reads the character into TMP1, keeps STR_PTR.
+Does not check STR_END. TMP2 Destroyed. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+struct sljit_jump *jump;
+#endif
+
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+if (common->utf)
+ {
+#if defined COMPILE_PCRE8
+ jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+#elif defined COMPILE_PCRE16
+ jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+#endif /* COMPILE_PCRE[8|16] */
+ add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+ JUMPHERE(jump);
+ }
+#endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
+}
+
+static void read_char8_type(compiler_common *common)
+{
+/* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+struct sljit_jump *jump;
+#endif
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+ {
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined COMPILE_PCRE8
+ /* This can be an extra read in some situations, but hopefully
+ it is needed in most cases. */
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+ jump = CMP(SLJIT_C_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
+ add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL));
+ JUMPHERE(jump);
+#elif defined COMPILE_PCRE16
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+ jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+ JUMPHERE(jump);
+ /* Skip low surrogate if necessary. */
+ OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xfc00);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0xd800);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+#elif defined COMPILE_PCRE32
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+ jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+ JUMPHERE(jump);
+#endif /* COMPILE_PCRE[8|16|32] */
+ return;
+ }
+#endif /* SUPPORT_UTF */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+/* The ctypes array contains only 256 values. */
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+JUMPHERE(jump);
+#endif
+}
+
+static void skip_char_back(compiler_common *common)
+{
+/* Goes one character back. Affects STR_PTR and TMP1. Does not check begin. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+#if defined COMPILE_PCRE8
+struct sljit_label *label;
+
+if (common->utf)
+ {
+ label = LABEL();
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
+ CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label);
+ return;
+ }
+#elif defined COMPILE_PCRE16
+if (common->utf)
+ {
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ /* Skip low surrogate if necessary. */
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ return;
+ }
+#endif /* COMPILE_PCRE[8|16] */
+#endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+}
+
+static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpiftrue)
+{
+/* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */
+DEFINE_COMPILER;
+
+if (nltype == NLTYPE_ANY)
+ {
+ add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+ }
+else if (nltype == NLTYPE_ANYCRLF)
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_CR);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+ }
+else
+ {
+ SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256);
+ add_jump(compiler, backtracks, CMP(jumpiftrue ? SLJIT_C_EQUAL : SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
+ }
+}
+
+#ifdef SUPPORT_UTF
+
+#if defined COMPILE_PCRE8
+static void do_utfreadchar(compiler_common *common)
+{
+/* Fast decoding a UTF-8 character. TMP1 contains the first byte
+of the character (>= 0xc0). Return char value in TMP1, length - 1 in TMP2. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+/* Searching for the first zero. */
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Two byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1f);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Three byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0f);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 12);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+/* Four byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x07);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 18);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 12);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(3));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void do_utfreadtype8(compiler_common *common)
+{
+/* Fast decoding a UTF-8 character type. TMP2 contains the first byte
+of the character (>= 0xc0). Return value in TMP1. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_jump *compare;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Two byte sequence. */
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
+compare = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(compare);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+/* We only have types for characters less than 256. */
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#elif defined COMPILE_PCRE16
+
+static void do_utfreadchar(compiler_common *common)
+{
+/* Fast decoding a UTF-16 character. TMP1 contains the first 16 bit char
+of the character (>= 0xd800). Return char value in TMP1, length - 1 in TMP2. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xdc00);
+/* Do nothing, only return. */
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(jump);
+/* Combine two 16 bit characters. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 10);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3ff);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#endif /* COMPILE_PCRE[8|16] */
+
+#endif /* SUPPORT_UTF */
+
+#ifdef SUPPORT_UCP
+
+/* UCD_BLOCK_SIZE must be 128 (see the assert below). */
+#define UCD_BLOCK_MASK 127
+#define UCD_BLOCK_SHIFT 7
+
+static void do_getucd(compiler_common *common)
+{
+/* Search the UCD record for the character comes in TMP1.
+Returns chartype in TMP1 and UCD offset in TMP2. */
+DEFINE_COMPILER;
+
+SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 8);
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2));
+OP1(SLJIT_MOV_UH, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+#endif
+
+static SLJIT_INLINE struct sljit_label *mainloop_entry(compiler_common *common, BOOL hascrorlf, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *mainloop;
+struct sljit_label *newlinelabel = NULL;
+struct sljit_jump *start;
+struct sljit_jump *end = NULL;
+struct sljit_jump *nl = NULL;
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+struct sljit_jump *singlechar;
+#endif
+jump_list *newline = NULL;
+BOOL newlinecheck = FALSE;
+BOOL readuchar = FALSE;
+
+if (!(hascrorlf || firstline) && (common->nltype == NLTYPE_ANY ||
+ common->nltype == NLTYPE_ANYCRLF || common->newline > 255))
+ newlinecheck = TRUE;
+
+if (firstline)
+ {
+ /* Search for the end of the first line. */
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
+
+ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ mainloop = LABEL();
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop);
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop);
+ JUMPHERE(end);
+ OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ }
+ else
+ {
+ end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ mainloop = LABEL();
+ /* Continual stores does not cause data dependency. */
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);
+ read_char(common);
+ check_newlinechar(common, common->nltype, &newline, TRUE);
+ CMPTO(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0, mainloop);
+ JUMPHERE(end);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);
+ set_jumps(newline, LABEL());
+ }
+
+ OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
+ }
+
+start = JUMP(SLJIT_JUMP);
+
+if (newlinecheck)
+ {
+ newlinelabel = LABEL();
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ nl = JUMP(SLJIT_JUMP);
+ }
+
+mainloop = LABEL();
+
+/* Increasing the STR_PTR here requires one less jump in the most common case. */
+#ifdef SUPPORT_UTF
+if (common->utf) readuchar = TRUE;
+#endif
+if (newlinecheck) readuchar = TRUE;
+
+if (readuchar)
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+
+if (newlinecheck)
+ CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel);
+
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined SUPPORT_UTF && !defined COMPILE_PCRE32
+#if defined COMPILE_PCRE8
+if (common->utf)
+ {
+ singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ JUMPHERE(singlechar);
+ }
+#elif defined COMPILE_PCRE16
+if (common->utf)
+ {
+ singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ JUMPHERE(singlechar);
+ }
+#endif /* COMPILE_PCRE[8|16] */
+#endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
+JUMPHERE(start);
+
+if (newlinecheck)
+ {
+ JUMPHERE(end);
+ JUMPHERE(nl);
+ }
+
+return mainloop;
+}
+
+#define MAX_N_CHARS 3
+
+static SLJIT_INLINE BOOL fast_forward_first_n_chars(compiler_common *common, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *start;
+struct sljit_jump *quit;
+pcre_uint32 chars[MAX_N_CHARS * 2];
+pcre_uchar *cc = common->start + 1 + LINK_SIZE;
+int location = 0;
+pcre_int32 len, c, bit, caseless;
+int must_stop;
+
+/* We do not support alternatives now. */
+if (*(common->start + GET(common->start, 1)) == OP_ALT)
+ return FALSE;
+
+while (TRUE)
+ {
+ caseless = 0;
+ must_stop = 1;
+ switch(*cc)
+ {
+ case OP_CHAR:
+ must_stop = 0;
+ cc++;
+ break;
+
+ case OP_CHARI:
+ caseless = 1;
+ must_stop = 0;
+ cc++;
+ break;
+
+ case OP_SOD:
+ case OP_SOM:
+ case OP_SET_SOM:
+ case OP_NOT_WORD_BOUNDARY:
+ case OP_WORD_BOUNDARY:
+ case OP_EODN:
+ case OP_EOD:
+ case OP_CIRC:
+ case OP_CIRCM:
+ case OP_DOLL:
+ case OP_DOLLM:
+ /* Zero width assertions. */
+ cc++;
+ continue;
+
+ case OP_PLUS:
+ case OP_MINPLUS:
+ case OP_POSPLUS:
+ cc++;
+ break;
+
+ case OP_EXACT:
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ case OP_PLUSI:
+ case OP_MINPLUSI:
+ case OP_POSPLUSI:
+ caseless = 1;
+ cc++;
+ break;
+
+ case OP_EXACTI:
+ caseless = 1;
+ cc += 1 + IMM2_SIZE;
+ break;
+
+ default:
+ must_stop = 2;
+ break;
+ }
+
+ if (must_stop == 2)
+ break;
+
+ len = 1;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[0])) len += GET_EXTRALEN(cc[0]);
+#endif
+
+ if (caseless && char_has_othercase(common, cc))
+ {
+ caseless = char_get_othercase_bit(common, cc);
+ if (caseless == 0)
+ return FALSE;
+#ifdef COMPILE_PCRE8
+ caseless = ((caseless & 0xff) << 8) | (len - (caseless >> 8));
+#else
+ if ((caseless & 0x100) != 0)
+ caseless = ((caseless & 0xff) << 16) | (len - (caseless >> 9));
+ else
+ caseless = ((caseless & 0xff) << 8) | (len - (caseless >> 9));
+#endif
+ }
+ else
+ caseless = 0;
+
+ while (len > 0 && location < MAX_N_CHARS * 2)
+ {
+ c = *cc;
+ bit = 0;
+ if (len == (caseless & 0xff))
+ {
+ bit = caseless >> 8;
+ c |= bit;
+ }
+
+ chars[location] = c;
+ chars[location + 1] = bit;
+
+ len--;
+ location += 2;
+ cc++;
+ }
+
+ if (location >= MAX_N_CHARS * 2 || must_stop != 0)
+ break;
+ }
+
+/* At least two characters are required. */
+if (location < 2 * 2)
+ return FALSE;
+
+if (firstline)
+ {
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
+ OP2(SLJIT_SUB, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, SLJIT_IMM, IN_UCHARS((location >> 1) - 1));
+ }
+else
+ OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS((location >> 1) - 1));
+
+start = LABEL();
+quit = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+if (chars[1] != 0)
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, chars[1]);
+CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[0], start);
+if (location > 2 * 2)
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+if (chars[3] != 0)
+ OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, chars[3]);
+CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, chars[2], start);
+if (location > 2 * 2)
+ {
+ if (chars[5] != 0)
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, chars[5]);
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[4], start);
+ }
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+
+JUMPHERE(quit);
+
+if (firstline)
+ OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
+else
+ OP2(SLJIT_ADD, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS((location >> 1) - 1));
+return TRUE;
+}
+
+#undef MAX_N_CHARS
+
+static SLJIT_INLINE void fast_forward_first_char(compiler_common *common, pcre_uchar first_char, BOOL caseless, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *start;
+struct sljit_jump *quit;
+struct sljit_jump *found;
+pcre_uchar oc, bit;
+
+if (firstline)
+ {
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
+ OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+ }
+
+start = LABEL();
+quit = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+
+oc = first_char;
+if (caseless)
+ {
+ oc = TABLE_GET(first_char, common->fcc, first_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+ if (first_char > 127 && common->utf)
+ oc = UCD_OTHERCASE(first_char);
+#endif
+ }
+if (first_char == oc)
+ found = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, first_char);
+else
+ {
+ bit = first_char ^ oc;
+ if (is_powerof2(bit))
+ {
+ OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, bit);
+ found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, first_char | bit);
+ }
+ else
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, first_char);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, oc);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ found = JUMP(SLJIT_C_NOT_ZERO);
+ }
+ }
+
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_JUMP, start);
+JUMPHERE(found);
+JUMPHERE(quit);
+
+if (firstline)
+ OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
+}
+
+static SLJIT_INLINE void fast_forward_newline(compiler_common *common, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *lastchar;
+struct sljit_jump *firstchar;
+struct sljit_jump *quit;
+struct sljit_jump *foundcr = NULL;
+struct sljit_jump *notfoundnl;
+jump_list *newline = NULL;
+
+if (firstline)
+ {
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
+ OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+ }
+
+if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ lastchar = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+ firstchar = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
+
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(2));
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, TMP1, 0);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_GREATER_EQUAL);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+
+ loop = LABEL();
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ quit = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, loop);
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, loop);
+
+ JUMPHERE(quit);
+ JUMPHERE(firstchar);
+ JUMPHERE(lastchar);
+
+ if (firstline)
+ OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+ return;
+ }
+
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+firstchar = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
+skip_char_back(common);
+
+loop = LABEL();
+read_char(common);
+lastchar = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
+ foundcr = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+check_newlinechar(common, common->nltype, &newline, FALSE);
+set_jumps(newline, loop);
+
+if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
+ {
+ quit = JUMP(SLJIT_JUMP);
+ JUMPHERE(foundcr);
+ notfoundnl = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
+#endif
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ JUMPHERE(notfoundnl);
+ JUMPHERE(quit);
+ }
+JUMPHERE(lastchar);
+JUMPHERE(firstchar);
+
+if (firstline)
+ OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
+}
+
+static BOOL check_class_ranges(compiler_common *common, const pcre_uint8 *bits, BOOL nclass, jump_list **backtracks);
+
+static SLJIT_INLINE void fast_forward_start_bits(compiler_common *common, sljit_uw start_bits, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *start;
+struct sljit_jump *quit;
+struct sljit_jump *found = NULL;
+jump_list *matches = NULL;
+pcre_uint8 inverted_start_bits[32];
+int i;
+#ifndef COMPILE_PCRE8
+struct sljit_jump *jump;
+#endif
+
+for (i = 0; i < 32; ++i)
+ inverted_start_bits[i] = ~(((pcre_uint8*)start_bits)[i]);
+
+if (firstline)
+ {
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, RETURN_ADDR, 0, STR_END, 0);
+ OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+ }
+
+start = LABEL();
+quit = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#ifdef SUPPORT_UTF
+if (common->utf)
+ OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+#endif
+
+if (!check_class_ranges(common, inverted_start_bits, (inverted_start_bits[31] & 0x80) != 0, &matches))
+ {
+#ifndef COMPILE_PCRE8
+ jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 255);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 255);
+ JUMPHERE(jump);
+#endif
+ OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+ OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), start_bits);
+ OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+ found = JUMP(SLJIT_C_NOT_ZERO);
+ }
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+ OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+#endif
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#ifdef SUPPORT_UTF
+#if defined COMPILE_PCRE8
+if (common->utf)
+ {
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0, start);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ }
+#elif defined COMPILE_PCRE16
+if (common->utf)
+ {
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800, start);
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ }
+#endif /* COMPILE_PCRE[8|16] */
+#endif /* SUPPORT_UTF */
+JUMPTO(SLJIT_JUMP, start);
+if (found != NULL)
+ JUMPHERE(found);
+if (matches != NULL)
+ set_jumps(matches, LABEL());
+JUMPHERE(quit);
+
+if (firstline)
+ OP1(SLJIT_MOV, STR_END, 0, RETURN_ADDR, 0);
+}
+
+static SLJIT_INLINE struct sljit_jump *search_requested_char(compiler_common *common, pcre_uchar req_char, BOOL caseless, BOOL has_firstchar)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *toolong;
+struct sljit_jump *alreadyfound;
+struct sljit_jump *found;
+struct sljit_jump *foundoc = NULL;
+struct sljit_jump *notfound;
+pcre_uint32 oc, bit;
+
+SLJIT_ASSERT(common->req_char_ptr != 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr);
+OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, REQ_BYTE_MAX);
+toolong = CMP(SLJIT_C_LESS, TMP1, 0, STR_END, 0);
+alreadyfound = CMP(SLJIT_C_LESS, STR_PTR, 0, TMP2, 0);
+
+if (has_firstchar)
+ OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+else
+ OP1(SLJIT_MOV, TMP1, 0, STR_PTR, 0);
+
+loop = LABEL();
+notfound = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, STR_END, 0);
+
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(TMP1), 0);
+oc = req_char;
+if (caseless)
+ {
+ oc = TABLE_GET(req_char, common->fcc, req_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+ if (req_char > 127 && common->utf)
+ oc = UCD_OTHERCASE(req_char);
+#endif
+ }
+if (req_char == oc)
+ found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
+else
+ {
+ bit = req_char ^ oc;
+ if (is_powerof2(bit))
+ {
+ OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, bit);
+ found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char | bit);
+ }
+ else
+ {
+ found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
+ foundoc = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, oc);
+ }
+ }
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_JUMP, loop);
+
+JUMPHERE(found);
+if (foundoc)
+ JUMPHERE(foundoc);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr, TMP1, 0);
+JUMPHERE(alreadyfound);
+JUMPHERE(toolong);
+return notfound;
+}
+
+static void do_revertframes(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *mainloop;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP1(SLJIT_MOV, TMP1, 0, STACK_TOP, 0);
+GET_LOCAL_BASE(TMP3, 0, 0);
+
+/* Drop frames until we reach STACK_TOP. */
+mainloop = LABEL();
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), 0);
+OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0);
+jump = JUMP(SLJIT_C_SIG_LESS_EQUAL);
+
+OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), SLJIT_MEM1(TMP1), 2 * sizeof(sljit_sw));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_sw));
+JUMPTO(SLJIT_JUMP, mainloop);
+
+JUMPHERE(jump);
+jump = JUMP(SLJIT_C_SIG_LESS);
+/* End of dropping frames. */
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(jump);
+OP1(SLJIT_NEG, TMP2, 0, TMP2, 0);
+OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_sw));
+JUMPTO(SLJIT_JUMP, mainloop);
+}
+
+static void check_wordboundary(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *skipread;
+jump_list *skipread_list = NULL;
+#if !(defined COMPILE_PCRE8) || defined SUPPORT_UTF
+struct sljit_jump *jump;
+#endif
+
+SLJIT_COMPILE_ASSERT(ctype_word == 0x10, ctype_word_must_be_16);
+
+sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+/* Get type of the previous char, and put it to LOCALS1. */
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, 0);
+skipread = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP1, 0);
+skip_char_back(common);
+check_start_used_ptr(common);
+read_char(common);
+
+/* Testing char type. */
+#ifdef SUPPORT_UCP
+if (common->use_ucp)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
+ jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
+ add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS_EQUAL);
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ JUMPHERE(jump);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP2, 0);
+ }
+else
+#endif
+ {
+#ifndef COMPILE_PCRE8
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+ /* Here LOCALS1 has already been zeroed. */
+ jump = NULL;
+ if (common->utf)
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif /* COMPILE_PCRE8 */
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), common->ctypes);
+ OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 4 /* ctype_word */);
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP1, 0);
+#ifndef COMPILE_PCRE8
+ JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+ if (jump != NULL)
+ JUMPHERE(jump);
+#endif /* COMPILE_PCRE8 */
+ }
+JUMPHERE(skipread);
+
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+check_str_end(common, &skipread_list);
+peek_char(common);
+
+/* Testing char type. This is a code duplication. */
+#ifdef SUPPORT_UCP
+if (common->use_ucp)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
+ jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
+ add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS_EQUAL);
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ JUMPHERE(jump);
+ }
+else
+#endif
+ {
+#ifndef COMPILE_PCRE8
+ /* TMP2 may be destroyed by peek_char. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+ jump = NULL;
+ if (common->utf)
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), common->ctypes);
+ OP2(SLJIT_LSHR, TMP2, 0, TMP2, 0, SLJIT_IMM, 4 /* ctype_word */);
+ OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+#ifndef COMPILE_PCRE8
+ JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+ if (jump != NULL)
+ JUMPHERE(jump);
+#endif /* COMPILE_PCRE8 */
+ }
+set_jumps(skipread_list, LABEL());
+
+OP2(SLJIT_XOR | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+}
+
+/*
+ range format:
+
+ ranges[0] = length of the range (max MAX_RANGE_SIZE, -1 means invalid range).
+ ranges[1] = first bit (0 or 1)
+ ranges[2-length] = position of the bit change (when the current bit is not equal to the previous)
+*/
+
+static BOOL check_ranges(compiler_common *common, int *ranges, jump_list **backtracks, BOOL readch)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (ranges[0] < 0)
+ return FALSE;
+
+switch(ranges[0])
+ {
+ case 1:
+ if (readch)
+ read_char(common);
+ add_jump(compiler, backtracks, CMP(ranges[1] == 0 ? SLJIT_C_LESS : SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2]));
+ return TRUE;
+
+ case 2:
+ if (readch)
+ read_char(common);
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2]);
+ add_jump(compiler, backtracks, CMP(ranges[1] != 0 ? SLJIT_C_LESS : SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2]));
+ return TRUE;
+
+ case 4:
+ if (ranges[2] + 1 == ranges[3] && ranges[4] + 1 == ranges[5])
+ {
+ if (readch)
+ read_char(common);
+ if (ranges[1] != 0)
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2]));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, ranges[4]));
+ }
+ else
+ {
+ jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2]);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[4]));
+ JUMPHERE(jump);
+ }
+ return TRUE;
+ }
+ if ((ranges[3] - ranges[2]) == (ranges[5] - ranges[4]) && is_powerof2(ranges[4] - ranges[2]))
+ {
+ if (readch)
+ read_char(common);
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[4] - ranges[2]);
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[4]);
+ add_jump(compiler, backtracks, CMP(ranges[1] != 0 ? SLJIT_C_LESS : SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[5] - ranges[4]));
+ return TRUE;
+ }
+ return FALSE;
+
+ default:
+ return FALSE;
+ }
+}
+
+static void get_ctype_ranges(compiler_common *common, int flag, int *ranges)
+{
+int i, bit, length;
+const pcre_uint8 *ctypes = (const pcre_uint8*)common->ctypes;
+
+bit = ctypes[0] & flag;
+ranges[0] = -1;
+ranges[1] = bit != 0 ? 1 : 0;
+length = 0;
+
+for (i = 1; i < 256; i++)
+ if ((ctypes[i] & flag) != bit)
+ {
+ if (length >= MAX_RANGE_SIZE)
+ return;
+ ranges[2 + length] = i;
+ length++;
+ bit ^= flag;
+ }
+
+if (bit != 0)
+ {
+ if (length >= MAX_RANGE_SIZE)
+ return;
+ ranges[2 + length] = 256;
+ length++;
+ }
+ranges[0] = length;
+}
+
+static BOOL check_class_ranges(compiler_common *common, const pcre_uint8 *bits, BOOL nclass, jump_list **backtracks)
+{
+int ranges[2 + MAX_RANGE_SIZE];
+pcre_uint8 bit, cbit, all;
+int i, byte, length = 0;
+
+bit = bits[0] & 0x1;
+ranges[1] = bit;
+/* Can be 0 or 255. */
+all = -bit;
+
+for (i = 0; i < 256; )
+ {
+ byte = i >> 3;
+ if ((i & 0x7) == 0 && bits[byte] == all)
+ i += 8;
+ else
+ {
+ cbit = (bits[byte] >> (i & 0x7)) & 0x1;
+ if (cbit != bit)
+ {
+ if (length >= MAX_RANGE_SIZE)
+ return FALSE;
+ ranges[2 + length] = i;
+ length++;
+ bit = cbit;
+ all = -cbit;
+ }
+ i++;
+ }
+ }
+
+if (((bit == 0) && nclass) || ((bit == 1) && !nclass))
+ {
+ if (length >= MAX_RANGE_SIZE)
+ return FALSE;
+ ranges[2 + length] = 256;
+ length++;
+ }
+ranges[0] = length;
+
+return check_ranges(common, ranges, backtracks, FALSE);
+}
+
+static void check_anynewline(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+#ifdef COMPILE_PCRE8
+if (common->utf)
+ {
+#endif
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+#ifdef COMPILE_PCRE8
+ }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
+OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void check_hspace(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x09);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
+OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xa0);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+#ifdef COMPILE_PCRE8
+if (common->utf)
+ {
+#endif
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2000);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000);
+#ifdef COMPILE_PCRE8
+ }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
+OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void check_vspace(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+#ifdef COMPILE_PCRE8
+if (common->utf)
+ {
+#endif
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+#ifdef COMPILE_PCRE8
+ }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
+OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#define CHAR1 STR_END
+#define CHAR2 STACK_TOP
+
+static void do_casefulcmp(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *label;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP3, 0, CHAR1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, CHAR2, 0);
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+
+label = LABEL();
+OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
+OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+jump = CMP(SLJIT_C_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_C_NOT_ZERO, label);
+
+JUMPHERE(jump);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP1(SLJIT_MOV, CHAR1, 0, TMP3, 0);
+OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#define LCC_TABLE STACK_LIMIT
+
+static void do_caselesscmp(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *label;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+
+OP1(SLJIT_MOV, TMP3, 0, LCC_TABLE, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, CHAR1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, CHAR2, 0);
+OP1(SLJIT_MOV, LCC_TABLE, 0, SLJIT_IMM, common->lcc);
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+
+label = LABEL();
+OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
+OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+#ifndef COMPILE_PCRE8
+jump = CMP(SLJIT_C_GREATER, CHAR1, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, CHAR1, 0, SLJIT_MEM2(LCC_TABLE, CHAR1), 0);
+#ifndef COMPILE_PCRE8
+JUMPHERE(jump);
+jump = CMP(SLJIT_C_GREATER, CHAR2, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, CHAR2, 0, SLJIT_MEM2(LCC_TABLE, CHAR2), 0);
+#ifndef COMPILE_PCRE8
+JUMPHERE(jump);
+#endif
+jump = CMP(SLJIT_C_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_C_NOT_ZERO, label);
+
+JUMPHERE(jump);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP1(SLJIT_MOV, LCC_TABLE, 0, TMP3, 0);
+OP1(SLJIT_MOV, CHAR1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#undef LCC_TABLE
+#undef CHAR1
+#undef CHAR2
+
+#if defined SUPPORT_UTF && defined SUPPORT_UCP
+
+static const pcre_uchar * SLJIT_CALL do_utf_caselesscmp(pcre_uchar *src1, jit_arguments *args, pcre_uchar *end1)
+{
+/* This function would be ineffective to do in JIT level. */
+pcre_uint32 c1, c2;
+const pcre_uchar *src2 = args->uchar_ptr;
+const pcre_uchar *end2 = args->end;
+const ucd_record *ur;
+const pcre_uint32 *pp;
+
+while (src1 < end1)
+ {
+ if (src2 >= end2)
+ return (pcre_uchar*)1;
+ GETCHARINC(c1, src1);
+ GETCHARINC(c2, src2);
+ ur = GET_UCD(c2);
+ if (c1 != c2 && c1 != c2 + ur->other_case)
+ {
+ pp = PRIV(ucd_caseless_sets) + ur->caseset;
+ for (;;)
+ {
+ if (c1 < *pp) return NULL;
+ if (c1 == *pp++) break;
+ }
+ }
+ }
+return src2;
+}
+
+#endif /* SUPPORT_UTF && SUPPORT_UCP */
+
+static pcre_uchar *byte_sequence_compare(compiler_common *common, BOOL caseless, pcre_uchar *cc,
+ compare_context* context, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+unsigned int othercasebit = 0;
+pcre_uchar *othercasechar = NULL;
+#ifdef SUPPORT_UTF
+int utflength;
+#endif
+
+if (caseless && char_has_othercase(common, cc))
+ {
+ othercasebit = char_get_othercase_bit(common, cc);
+ SLJIT_ASSERT(othercasebit);
+ /* Extracting bit difference info. */
+#if defined COMPILE_PCRE8
+ othercasechar = cc + (othercasebit >> 8);
+ othercasebit &= 0xff;
+#elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ /* Note that this code only handles characters in the BMP. If there
+ ever are characters outside the BMP whose othercase differs in only one
+ bit from itself (there currently are none), this code will need to be
+ revised for COMPILE_PCRE32. */
+ othercasechar = cc + (othercasebit >> 9);
+ if ((othercasebit & 0x100) != 0)
+ othercasebit = (othercasebit & 0xff) << 8;
+ else
+ othercasebit &= 0xff;
+#endif /* COMPILE_PCRE[8|16|32] */
+ }
+
+if (context->sourcereg == -1)
+ {
+#if defined COMPILE_PCRE8
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+ if (context->length >= 4)
+ OP1(SLJIT_MOV_SI, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+ else if (context->length >= 2)
+ OP1(SLJIT_MOV_UH, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+ else
+#endif
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#elif defined COMPILE_PCRE16
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+ if (context->length >= 4)
+ OP1(SLJIT_MOV_SI, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+ else
+#endif
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#elif defined COMPILE_PCRE32
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#endif /* COMPILE_PCRE[8|16|32] */
+ context->sourcereg = TMP2;
+ }
+
+#ifdef SUPPORT_UTF
+utflength = 1;
+if (common->utf && HAS_EXTRALEN(*cc))
+ utflength += GET_EXTRALEN(*cc);
+
+do
+ {
+#endif
+
+ context->length -= IN_UCHARS(1);
+#if (defined SLJIT_UNALIGNED && SLJIT_UNALIGNED) && (defined COMPILE_PCRE8 || defined COMPILE_PCRE16)
+
+ /* Unaligned read is supported. */
+ if (othercasebit != 0 && othercasechar == cc)
+ {
+ context->c.asuchars[context->ucharptr] = *cc | othercasebit;
+ context->oc.asuchars[context->ucharptr] = othercasebit;
+ }
+ else
+ {
+ context->c.asuchars[context->ucharptr] = *cc;
+ context->oc.asuchars[context->ucharptr] = 0;
+ }
+ context->ucharptr++;
+
+#if defined COMPILE_PCRE8
+ if (context->ucharptr >= 4 || context->length == 0 || (context->ucharptr == 2 && context->length == 1))
+#else
+ if (context->ucharptr >= 2 || context->length == 0)
+#endif
+ {
+ if (context->length >= 4)
+ OP1(SLJIT_MOV_SI, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+ else if (context->length >= 2)
+ OP1(SLJIT_MOV_UH, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#if defined COMPILE_PCRE8
+ else if (context->length >= 1)
+ OP1(SLJIT_MOV_UB, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#endif /* COMPILE_PCRE8 */
+ context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
+
+ switch(context->ucharptr)
+ {
+ case 4 / sizeof(pcre_uchar):
+ if (context->oc.asint != 0)
+ OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asint);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asint | context->oc.asint));
+ break;
+
+ case 2 / sizeof(pcre_uchar):
+ if (context->oc.asushort != 0)
+ OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asushort);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asushort | context->oc.asushort));
+ break;
+
+#ifdef COMPILE_PCRE8
+ case 1:
+ if (context->oc.asbyte != 0)
+ OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asbyte);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asbyte | context->oc.asbyte));
+ break;
+#endif
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+ context->ucharptr = 0;
+ }
+
+#else
+
+ /* Unaligned read is unsupported or in 32 bit mode. */
+ if (context->length >= 1)
+ OP1(MOV_UCHAR, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+
+ context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
+
+ if (othercasebit != 0 && othercasechar == cc)
+ {
+ OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, othercasebit);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc | othercasebit));
+ }
+ else
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc));
+
+#endif
+
+ cc++;
+#ifdef SUPPORT_UTF
+ utflength--;
+ }
+while (utflength > 0);
+#endif
+
+return cc;
+}
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+
+#define SET_TYPE_OFFSET(value) \
+ if ((value) != typeoffset) \
+ { \
+ if ((value) > typeoffset) \
+ OP2(SLJIT_SUB, typereg, 0, typereg, 0, SLJIT_IMM, (value) - typeoffset); \
+ else \
+ OP2(SLJIT_ADD, typereg, 0, typereg, 0, SLJIT_IMM, typeoffset - (value)); \
+ } \
+ typeoffset = (value);
+
+#define SET_CHAR_OFFSET(value) \
+ if ((value) != charoffset) \
+ { \
+ if ((value) > charoffset) \
+ OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, (value) - charoffset); \
+ else \
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, charoffset - (value)); \
+ } \
+ charoffset = (value);
+
+static void compile_xclass_matchingpath(compiler_common *common, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+jump_list *found = NULL;
+jump_list **list = (*cc & XCL_NOT) == 0 ? &found : backtracks;
+pcre_int32 c, charoffset;
+const pcre_uint32 *other_cases;
+struct sljit_jump *jump = NULL;
+pcre_uchar *ccbegin;
+int compares, invertcmp, numberofcmps;
+#ifdef SUPPORT_UCP
+BOOL needstype = FALSE, needsscript = FALSE, needschar = FALSE;
+BOOL charsaved = FALSE;
+int typereg = TMP1, scriptreg = TMP1;
+pcre_int32 typeoffset;
+#endif
+
+/* Although SUPPORT_UTF must be defined, we are
+ not necessary in utf mode even in 8 bit mode. */
+detect_partial_match(common, backtracks);
+read_char(common);
+
+if ((*cc++ & XCL_MAP) != 0)
+ {
+ OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+#ifndef COMPILE_PCRE8
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+ if (common->utf)
+ jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif
+
+ if (!check_class_ranges(common, (const pcre_uint8 *)cc, TRUE, list))
+ {
+ OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+ OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
+ OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+ add_jump(compiler, list, JUMP(SLJIT_C_NOT_ZERO));
+ }
+
+#ifndef COMPILE_PCRE8
+ JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+ if (common->utf)
+ JUMPHERE(jump);
+#endif
+ OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+#ifdef SUPPORT_UCP
+ charsaved = TRUE;
+#endif
+ cc += 32 / sizeof(pcre_uchar);
+ }
+
+/* Scanning the necessary info. */
+ccbegin = cc;
+compares = 0;
+while (*cc != XCL_END)
+ {
+ compares++;
+ if (*cc == XCL_SINGLE)
+ {
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+#ifdef SUPPORT_UCP
+ needschar = TRUE;
+#endif
+ }
+ else if (*cc == XCL_RANGE)
+ {
+ cc += 2;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+ cc++;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+#ifdef SUPPORT_UCP
+ needschar = TRUE;
+#endif
+ }
+#ifdef SUPPORT_UCP
+ else
+ {
+ SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
+ cc++;
+ switch(*cc)
+ {
+ case PT_ANY:
+ break;
+
+ case PT_LAMP:
+ case PT_GC:
+ case PT_PC:
+ case PT_ALNUM:
+ needstype = TRUE;
+ break;
+
+ case PT_SC:
+ needsscript = TRUE;
+ break;
+
+ case PT_SPACE:
+ case PT_PXSPACE:
+ case PT_WORD:
+ needstype = TRUE;
+ needschar = TRUE;
+ break;
+
+ case PT_CLIST:
+ case PT_UCNC:
+ needschar = TRUE;
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+ cc += 2;
+ }
+#endif
+ }
+
+#ifdef SUPPORT_UCP
+/* Simple register allocation. TMP1 is preferred if possible. */
+if (needstype || needsscript)
+ {
+ if (needschar && !charsaved)
+ OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+ add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+ if (needschar)
+ {
+ if (needstype)
+ {
+ OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
+ typereg = RETURN_ADDR;
+ }
+
+ if (needsscript)
+ scriptreg = TMP3;
+ OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+ }
+ else if (needstype && needsscript)
+ scriptreg = TMP3;
+ /* In all other cases only one of them was specified, and that can goes to TMP1. */
+
+ if (needsscript)
+ {
+ if (scriptreg == TMP1)
+ {
+ OP1(SLJIT_MOV, scriptreg, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script));
+ OP1(SLJIT_MOV_UB, scriptreg, 0, SLJIT_MEM2(scriptreg, TMP2), 3);
+ }
+ else
+ {
+ OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 3);
+ OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script));
+ OP1(SLJIT_MOV_UB, scriptreg, 0, SLJIT_MEM1(TMP2), 0);
+ }
+ }
+ }
+#endif
+
+/* Generating code. */
+cc = ccbegin;
+charoffset = 0;
+numberofcmps = 0;
+#ifdef SUPPORT_UCP
+typeoffset = 0;
+#endif
+
+while (*cc != XCL_END)
+ {
+ compares--;
+ invertcmp = (compares == 0 && list != backtracks);
+ jump = NULL;
+
+ if (*cc == XCL_SINGLE)
+ {
+ cc ++;
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ GETCHARINC(c, cc);
+ }
+ else
+#endif
+ c = *cc++;
+
+ if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+ OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_C_EQUAL);
+ numberofcmps++;
+ }
+ else if (numberofcmps > 0)
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ numberofcmps = 0;
+ }
+ else
+ {
+ jump = CMP(SLJIT_C_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, c - charoffset);
+ numberofcmps = 0;
+ }
+ }
+ else if (*cc == XCL_RANGE)
+ {
+ cc ++;
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ GETCHARINC(c, cc);
+ }
+ else
+#endif
+ c = *cc++;
+ SET_CHAR_OFFSET(c);
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ GETCHARINC(c, cc);
+ }
+ else
+#endif
+ c = *cc++;
+ if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+ OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_C_LESS_EQUAL);
+ numberofcmps++;
+ }
+ else if (numberofcmps > 0)
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ numberofcmps = 0;
+ }
+ else
+ {
+ jump = CMP(SLJIT_C_LESS_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, c - charoffset);
+ numberofcmps = 0;
+ }
+ }
+#ifdef SUPPORT_UCP
+ else
+ {
+ if (*cc == XCL_NOTPROP)
+ invertcmp ^= 0x1;
+ cc++;
+ switch(*cc)
+ {
+ case PT_ANY:
+ if (list != backtracks)
+ {
+ if ((cc[-1] == XCL_NOTPROP && compares > 0) || (cc[-1] == XCL_PROP && compares == 0))
+ continue;
+ }
+ else if (cc[-1] == XCL_NOTPROP)
+ continue;
+ jump = JUMP(SLJIT_JUMP);
+ break;
+
+ case PT_LAMP:
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ break;
+
+ case PT_GC:
+ c = PRIV(ucp_typerange)[(int)cc[1] * 2];
+ SET_TYPE_OFFSET(c);
+ jump = CMP(SLJIT_C_LESS_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, PRIV(ucp_typerange)[(int)cc[1] * 2 + 1] - c);
+ break;
+
+ case PT_PC:
+ jump = CMP(SLJIT_C_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, (int)cc[1] - typeoffset);
+ break;
+
+ case PT_SC:
+ jump = CMP(SLJIT_C_EQUAL ^ invertcmp, scriptreg, 0, SLJIT_IMM, (int)cc[1]);
+ break;
+
+ case PT_SPACE:
+ case PT_PXSPACE:
+ if (*cc == PT_SPACE)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+ jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 11 - charoffset);
+ }
+ SET_CHAR_OFFSET(9);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 13 - 9);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS_EQUAL);
+ if (*cc == PT_SPACE)
+ JUMPHERE(jump);
+
+ SET_TYPE_OFFSET(ucp_Zl);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ break;
+
+ case PT_WORD:
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE - charoffset);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ /* Fall through. */
+
+ case PT_ALNUM:
+ SET_TYPE_OFFSET(ucp_Ll);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+ OP_FLAGS((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, (*cc == PT_ALNUM) ? SLJIT_UNUSED : TMP2, 0, SLJIT_C_LESS_EQUAL);
+ SET_TYPE_OFFSET(ucp_Nd);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ break;
+
+ case PT_CLIST:
+ other_cases = PRIV(ucd_caseless_sets) + cc[1];
+
+ /* At least three characters are required.
+ Otherwise this case would be handled by the normal code path. */
+ SLJIT_ASSERT(other_cases[0] != NOTACHAR && other_cases[1] != NOTACHAR && other_cases[2] != NOTACHAR);
+ SLJIT_ASSERT(other_cases[0] < other_cases[1] && other_cases[1] < other_cases[2]);
+
+ /* Optimizing character pairs, if their difference is power of 2. */
+ if (is_powerof2(other_cases[1] ^ other_cases[0]))
+ {
+ if (charoffset == 0)
+ OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
+ else
+ {
+ OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
+ OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
+ }
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[1]);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ other_cases += 2;
+ }
+ else if (is_powerof2(other_cases[2] ^ other_cases[1]))
+ {
+ if (charoffset == 0)
+ OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[2] ^ other_cases[1]);
+ else
+ {
+ OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
+ OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
+ }
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[2]);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, other_cases[0] - charoffset);
+ OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+
+ other_cases += 3;
+ }
+ else
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, *other_cases++ - charoffset);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ }
+
+ while (*other_cases != NOTACHAR)
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, *other_cases++ - charoffset);
+ OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ }
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ break;
+
+ case PT_UCNC:
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_DOLLAR_SIGN - charoffset);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_COMMERCIAL_AT - charoffset);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_GRAVE_ACCENT - charoffset);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+
+ SET_CHAR_OFFSET(0xa0);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd7ff - charoffset);
+ OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_C_LESS_EQUAL);
+ SET_CHAR_OFFSET(0);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xe000 - 0);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_GREATER_EQUAL);
+ jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+ break;
+ }
+ cc += 2;
+ }
+#endif
+
+ if (jump != NULL)
+ add_jump(compiler, compares > 0 ? list : backtracks, jump);
+ }
+
+if (found != NULL)
+ set_jumps(found, LABEL());
+}
+
+#undef SET_TYPE_OFFSET
+#undef SET_CHAR_OFFSET
+
+#endif
+
+static pcre_uchar *compile_char1_matchingpath(compiler_common *common, pcre_uchar type, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+int length;
+unsigned int c, oc, bit;
+compare_context context;
+struct sljit_jump *jump[4];
+jump_list *end_list;
+#ifdef SUPPORT_UTF
+struct sljit_label *label;
+#ifdef SUPPORT_UCP
+pcre_uchar propdata[5];
+#endif
+#endif
+
+switch(type)
+ {
+ case OP_SOD:
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
+ return cc;
+
+ case OP_SOM:
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
+ return cc;
+
+ case OP_NOT_WORD_BOUNDARY:
+ case OP_WORD_BOUNDARY:
+ add_jump(compiler, &common->wordboundary, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, JUMP(type == OP_NOT_WORD_BOUNDARY ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+ return cc;
+
+ case OP_NOT_DIGIT:
+ case OP_DIGIT:
+ /* Digits are usually 0-9, so it is worth to optimize them. */
+ if (common->digits[0] == -2)
+ get_ctype_ranges(common, ctype_digit, common->digits);
+ detect_partial_match(common, backtracks);
+ /* Flip the starting bit in the negative case. */
+ if (type == OP_NOT_DIGIT)
+ common->digits[1] ^= 1;
+ if (!check_ranges(common, common->digits, backtracks, TRUE))
+ {
+ read_char8_type(common);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit);
+ add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+ }
+ if (type == OP_NOT_DIGIT)
+ common->digits[1] ^= 1;
+ return cc;
+
+ case OP_NOT_WHITESPACE:
+ case OP_WHITESPACE:
+ detect_partial_match(common, backtracks);
+ read_char8_type(common);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space);
+ add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+ return cc;
+
+ case OP_NOT_WORDCHAR:
+ case OP_WORDCHAR:
+ detect_partial_match(common, backtracks);
+ read_char8_type(common);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word);
+ add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+ return cc;
+
+ case OP_ANY:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ jump[0] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
+ end_list = NULL;
+ if (common->mode != JIT_PARTIAL_HARD_COMPILE)
+ add_jump(compiler, &end_list, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+ else
+ check_str_end(common, &end_list);
+
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, common->newline & 0xff));
+ set_jumps(end_list, LABEL());
+ JUMPHERE(jump[0]);
+ }
+ else
+ check_newlinechar(common, common->nltype, backtracks, TRUE);
+ return cc;
+
+ case OP_ALLANY:
+ detect_partial_match(common, backtracks);
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
+#if defined COMPILE_PCRE8
+ jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+#elif defined COMPILE_PCRE16
+ jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+ OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+ OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+#endif
+ JUMPHERE(jump[0]);
+#endif /* COMPILE_PCRE[8|16] */
+ return cc;
+ }
+#endif
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ return cc;
+
+ case OP_ANYBYTE:
+ detect_partial_match(common, backtracks);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ return cc;
+
+#ifdef SUPPORT_UTF
+#ifdef SUPPORT_UCP
+ case OP_NOTPROP:
+ case OP_PROP:
+ propdata[0] = 0;
+ propdata[1] = type == OP_NOTPROP ? XCL_NOTPROP : XCL_PROP;
+ propdata[2] = cc[0];
+ propdata[3] = cc[1];
+ propdata[4] = XCL_END;
+ compile_xclass_matchingpath(common, propdata, backtracks);
+ return cc + 2;
+#endif
+#endif
+
+ case OP_ANYNL:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ jump[0] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+ /* We don't need to handle soft partial matching case. */
+ end_list = NULL;
+ if (common->mode != JIT_PARTIAL_HARD_COMPILE)
+ add_jump(compiler, &end_list, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+ else
+ check_str_end(common, &end_list);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ jump[1] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ jump[2] = JUMP(SLJIT_JUMP);
+ JUMPHERE(jump[0]);
+ check_newlinechar(common, common->bsr_nltype, backtracks, FALSE);
+ set_jumps(end_list, LABEL());
+ JUMPHERE(jump[1]);
+ JUMPHERE(jump[2]);
+ return cc;
+
+ case OP_NOT_HSPACE:
+ case OP_HSPACE:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+ return cc;
+
+ case OP_NOT_VSPACE:
+ case OP_VSPACE:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+ return cc;
+
+#ifdef SUPPORT_UCP
+ case OP_EXTUNI:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, gbprop));
+ /* Optimize register allocation: use a real register. */
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STACK_TOP, 0);
+ OP1(SLJIT_MOV_UB, STACK_TOP, 0, SLJIT_MEM2(TMP1, TMP2), 3);
+
+ label = LABEL();
+ jump[0] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
+ read_char(common);
+ add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, gbprop));
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM2(TMP1, TMP2), 3);
+
+ OP2(SLJIT_SHL, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 2);
+ OP1(SLJIT_MOV_UI, TMP1, 0, SLJIT_MEM1(STACK_TOP), (sljit_sw)PRIV(ucp_gbtable));
+ OP1(SLJIT_MOV, STACK_TOP, 0, TMP2, 0);
+ OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+ JUMPTO(SLJIT_C_NOT_ZERO, label);
+
+ OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
+ JUMPHERE(jump[0]);
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+
+ if (common->mode == JIT_PARTIAL_HARD_COMPILE)
+ {
+ jump[0] = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+ /* Since we successfully read a char above, partial matching must occure. */
+ check_partial(common, TRUE);
+ JUMPHERE(jump[0]);
+ }
+ return cc;
+#endif
+
+ case OP_EODN:
+ /* Requires rather complex checks. */
+ jump[0] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+ if (common->mode == JIT_COMPILE)
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_END, 0));
+ else
+ {
+ jump[1] = CMP(SLJIT_C_EQUAL, TMP2, 0, STR_END, 0);
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_LESS);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_NOT_EQUAL);
+ add_jump(compiler, backtracks, JUMP(SLJIT_C_NOT_EQUAL));
+ check_partial(common, TRUE);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+ JUMPHERE(jump[1]);
+ }
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+ }
+ else if (common->nltype == NLTYPE_FIXED)
+ {
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_END, 0));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
+ }
+ else
+ {
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+ jump[1] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+ OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+ jump[2] = JUMP(SLJIT_C_GREATER);
+ add_jump(compiler, backtracks, JUMP(SLJIT_C_LESS));
+ /* Equal. */
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+ jump[3] = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+
+ JUMPHERE(jump[1]);
+ if (common->nltype == NLTYPE_ANYCRLF)
+ {
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, TMP2, 0, STR_END, 0));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
+ }
+ else
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, STR_PTR, 0);
+ read_char(common);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, STR_END, 0));
+ add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+ }
+ JUMPHERE(jump[2]);
+ JUMPHERE(jump[3]);
+ }
+ JUMPHERE(jump[0]);
+ check_partial(common, FALSE);
+ return cc;
+
+ case OP_EOD:
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0));
+ check_partial(common, FALSE);
+ return cc;
+
+ case OP_CIRC:
+ OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, TMP1, 0));
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, notbol));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+ return cc;
+
+ case OP_CIRCM:
+ OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
+ jump[1] = CMP(SLJIT_C_GREATER, STR_PTR, 0, TMP1, 0);
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, notbol));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+ jump[0] = JUMP(SLJIT_JUMP);
+ JUMPHERE(jump[1]);
+
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ OP2(SLJIT_SUB, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, TMP2, 0, TMP1, 0));
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+ }
+ else
+ {
+ skip_char_back(common);
+ read_char(common);
+ check_newlinechar(common, common->nltype, backtracks, FALSE);
+ }
+ JUMPHERE(jump[0]);
+ return cc;
+
+ case OP_DOLL:
+ OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, noteol));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+
+ if (!common->endonly)
+ compile_char1_matchingpath(common, OP_EODN, cc, backtracks);
+ else
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0));
+ check_partial(common, FALSE);
+ }
+ return cc;
+
+ case OP_DOLLM:
+ jump[1] = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+ OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, noteol));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+ check_partial(common, FALSE);
+ jump[0] = JUMP(SLJIT_JUMP);
+ JUMPHERE(jump[1]);
+
+ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+ {
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+ if (common->mode == JIT_COMPILE)
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, TMP2, 0, STR_END, 0));
+ else
+ {
+ jump[1] = CMP(SLJIT_C_LESS_EQUAL, TMP2, 0, STR_END, 0);
+ /* STR_PTR = STR_END - IN_UCHARS(1) */
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+ check_partial(common, TRUE);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+ JUMPHERE(jump[1]);
+ }
+
+ OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+ }
+ else
+ {
+ peek_char(common);
+ check_newlinechar(common, common->nltype, backtracks, FALSE);
+ }
+ JUMPHERE(jump[0]);
+ return cc;
+
+ case OP_CHAR:
+ case OP_CHARI:
+ length = 1;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(*cc)) length += GET_EXTRALEN(*cc);
+#endif
+ if (common->mode == JIT_COMPILE && (type == OP_CHAR || !char_has_othercase(common, cc) || char_get_othercase_bit(common, cc) != 0))
+ {
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0));
+
+ context.length = IN_UCHARS(length);
+ context.sourcereg = -1;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+ context.ucharptr = 0;
+#endif
+ return byte_sequence_compare(common, type == OP_CHARI, cc, &context, backtracks);
+ }
+ detect_partial_match(common, backtracks);
+ read_char(common);
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ GETCHAR(c, cc);
+ }
+ else
+#endif
+ c = *cc;
+ if (type == OP_CHAR || !char_has_othercase(common, cc))
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c));
+ return cc + length;
+ }
+ oc = char_othercase(common, c);
+ bit = c ^ oc;
+ if (is_powerof2(bit))
+ {
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
+ return cc + length;
+ }
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c);
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, oc);
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+ return cc + length;
+
+ case OP_NOT:
+ case OP_NOTI:
+ detect_partial_match(common, backtracks);
+ length = 1;
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+#ifdef COMPILE_PCRE8
+ c = *cc;
+ if (c < 128)
+ {
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+ if (type == OP_NOT || !char_has_othercase(common, cc))
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+ else
+ {
+ /* Since UTF8 code page is fixed, we know that c is in [a-z] or [A-Z] range. */
+ OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x20);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, c | 0x20));
+ }
+ /* Skip the variable-length character. */
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+ OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+ JUMPHERE(jump[0]);
+ return cc + 1;
+ }
+ else
+#endif /* COMPILE_PCRE8 */
+ {
+ GETCHARLEN(c, cc, length);
+ read_char(common);
+ }
+ }
+ else
+#endif /* SUPPORT_UTF */
+ {
+ read_char(common);
+ c = *cc;
+ }
+
+ if (type == OP_NOT || !char_has_othercase(common, cc))
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+ else
+ {
+ oc = char_othercase(common, c);
+ bit = c ^ oc;
+ if (is_powerof2(bit))
+ {
+ OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
+ }
+ else
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, oc));
+ }
+ }
+ return cc + length;
+
+ case OP_CLASS:
+ case OP_NCLASS:
+ detect_partial_match(common, backtracks);
+ read_char(common);
+ if (check_class_ranges(common, (const pcre_uint8 *)cc, type == OP_NCLASS, backtracks))
+ return cc + 32 / sizeof(pcre_uchar);
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ jump[0] = NULL;
+#ifdef COMPILE_PCRE8
+ /* This check only affects 8 bit mode. In other modes, we
+ always need to compare the value with 255. */
+ if (common->utf)
+#endif /* COMPILE_PCRE8 */
+ {
+ jump[0] = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+ if (type == OP_CLASS)
+ {
+ add_jump(compiler, backtracks, jump[0]);
+ jump[0] = NULL;
+ }
+ }
+#endif /* SUPPORT_UTF || !COMPILE_PCRE8 */
+ OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+ OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+ OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
+ OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+ OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+ add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ if (jump[0] != NULL)
+ JUMPHERE(jump[0]);
+#endif /* SUPPORT_UTF || !COMPILE_PCRE8 */
+ return cc + 32 / sizeof(pcre_uchar);
+
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ case OP_XCLASS:
+ compile_xclass_matchingpath(common, cc + LINK_SIZE, backtracks);
+ return cc + GET(cc, 0) - 1;
+#endif
+
+ case OP_REVERSE:
+ length = GET(cc, 0);
+ if (length == 0)
+ return cc + LINK_SIZE;
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, length);
+ label = LABEL();
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP3, 0));
+ skip_char_back(common);
+ OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, label);
+ }
+ else
+#endif
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, TMP1, 0));
+ }
+ check_start_used_ptr(common);
+ return cc + LINK_SIZE;
+ }
+SLJIT_ASSERT_STOP();
+return cc;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_charn_matchingpath(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, jump_list **backtracks)
+{
+/* This function consumes at least one input character. */
+/* To decrease the number of length checks, we try to concatenate the fixed length character sequences. */
+DEFINE_COMPILER;
+pcre_uchar *ccbegin = cc;
+compare_context context;
+int size;
+
+context.length = 0;
+do
+ {
+ if (cc >= ccend)
+ break;
+
+ if (*cc == OP_CHAR)
+ {
+ size = 1;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(cc[1]))
+ size += GET_EXTRALEN(cc[1]);
+#endif
+ }
+ else if (*cc == OP_CHARI)
+ {
+ size = 1;
+#ifdef SUPPORT_UTF
+ if (common->utf)
+ {
+ if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
+ size = 0;
+ else if (HAS_EXTRALEN(cc[1]))
+ size += GET_EXTRALEN(cc[1]);
+ }
+ else
+#endif
+ if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
+ size = 0;
+ }
+ else
+ size = 0;
+
+ cc += 1 + size;
+ context.length += IN_UCHARS(size);
+ }
+while (size > 0 && context.length <= 128);
+
+cc = ccbegin;
+if (context.length > 0)
+ {
+ /* We have a fixed-length byte sequence. */
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, context.length);
+ add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0));
+
+ context.sourcereg = -1;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+ context.ucharptr = 0;
+#endif
+ do cc = byte_sequence_compare(common, *cc == OP_CHARI, cc + 1, &context, backtracks); while (context.length > 0);
+ return cc;
+ }
+
+/* A non-fixed length character will be checked if length == 0. */
+return compile_char1_matchingpath(common, *cc, cc + 1, backtracks);
+}
+
+static struct sljit_jump *compile_ref_checks(compiler_common *common, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1) << 1;
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+if (!common->jscript_compat)
+ {
+ if (backtracks == NULL)
+ {
+ /* OVECTOR(1) contains the "string begin - 1" constant. */
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+ OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_C_EQUAL);
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+ OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_C_EQUAL);
+ return JUMP(SLJIT_C_NOT_ZERO);
+ }
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+ }
+return CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+}
+
+/* Forward definitions. */
+static void compile_matchingpath(compiler_common *, pcre_uchar *, pcre_uchar *, backtrack_common *);
+static void compile_backtrackingpath(compiler_common *, struct backtrack_common *);
+
+#define PUSH_BACKTRACK(size, ccstart, error) \
+ do \
+ { \
+ backtrack = sljit_alloc_memory(compiler, (size)); \
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+ return error; \
+ memset(backtrack, 0, size); \
+ backtrack->prev = parent->top; \
+ backtrack->cc = (ccstart); \
+ parent->top = backtrack; \
+ } \
+ while (0)
+
+#define PUSH_BACKTRACK_NOVALUE(size, ccstart) \
+ do \
+ { \
+ backtrack = sljit_alloc_memory(compiler, (size)); \
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+ return; \
+ memset(backtrack, 0, size); \
+ backtrack->prev = parent->top; \
+ backtrack->cc = (ccstart); \
+ parent->top = backtrack; \
+ } \
+ while (0)
+
+#define BACKTRACK_AS(type) ((type *)backtrack)
+
+static pcre_uchar *compile_ref_matchingpath(compiler_common *common, pcre_uchar *cc, jump_list **backtracks, BOOL withchecks, BOOL emptyfail)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1) << 1;
+struct sljit_jump *jump = NULL;
+struct sljit_jump *partial;
+struct sljit_jump *nopartial;
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+/* OVECTOR(1) contains the "string begin - 1" constant. */
+if (withchecks && !common->jscript_compat)
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+
+#if defined SUPPORT_UTF && defined SUPPORT_UCP
+if (common->utf && *cc == OP_REFI)
+ {
+ SLJIT_ASSERT(TMP1 == SLJIT_SCRATCH_REG1 && STACK_TOP == SLJIT_SCRATCH_REG2 && TMP2 == SLJIT_SCRATCH_REG3);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+ if (withchecks)
+ jump = CMP(SLJIT_C_EQUAL, TMP1, 0, TMP2, 0);
+
+ /* Needed to save important temporary registers. */
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STACK_TOP, 0);
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG2, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SCRATCH_REG2), SLJIT_OFFSETOF(jit_arguments, uchar_ptr), STR_PTR, 0);
+ sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_utf_caselesscmp));
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+ if (common->mode == JIT_COMPILE)
+ add_jump(compiler, backtracks, CMP(SLJIT_C_LESS_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1));
+ else
+ {
+ add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0));
+ nopartial = CMP(SLJIT_C_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
+ check_partial(common, FALSE);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+ JUMPHERE(nopartial);
+ }
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0);
+ }
+else
+#endif /* SUPPORT_UTF && SUPPORT_UCP */
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP1, 0);
+ if (withchecks)
+ jump = JUMP(SLJIT_C_ZERO);
+
+ OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+ partial = CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0);
+ if (common->mode == JIT_COMPILE)
+ add_jump(compiler, backtracks, partial);
+
+ add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+
+ if (common->mode != JIT_COMPILE)
+ {
+ nopartial = JUMP(SLJIT_JUMP);
+ JUMPHERE(partial);
+ /* TMP2 -= STR_END - STR_PTR */
+ OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, STR_PTR, 0);
+ OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, STR_END, 0);
+ partial = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0);
+ add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
+ add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+ JUMPHERE(partial);
+ check_partial(common, FALSE);
+ add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+ JUMPHERE(nopartial);
+ }
+ }
+
+if (jump != NULL)
+ {
+ if (emptyfail)
+ add_jump(compiler, backtracks, jump);
+ else
+ JUMPHERE(jump);
+ }
+return cc + 1 + IMM2_SIZE;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_ref_iterator_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar type;
+struct sljit_label *label;
+struct sljit_jump *zerolength;
+struct sljit_jump *jump = NULL;
+pcre_uchar *ccbegin = cc;
+int min = 0, max = 0;
+BOOL minimize;
+
+PUSH_BACKTRACK(sizeof(iterator_backtrack), cc, NULL);
+
+type = cc[1 + IMM2_SIZE];
+minimize = (type & 0x1) != 0;
+switch(type)
+ {
+ case OP_CRSTAR:
+ case OP_CRMINSTAR:
+ min = 0;
+ max = 0;
+ cc += 1 + IMM2_SIZE + 1;
+ break;
+ case OP_CRPLUS:
+ case OP_CRMINPLUS:
+ min = 1;
+ max = 0;
+ cc += 1 + IMM2_SIZE + 1;
+ break;
+ case OP_CRQUERY:
+ case OP_CRMINQUERY:
+ min = 0;
+ max = 1;
+ cc += 1 + IMM2_SIZE + 1;
+ break;
+ case OP_CRRANGE:
+ case OP_CRMINRANGE:
+ min = GET2(cc, 1 + IMM2_SIZE + 1);
+ max = GET2(cc, 1 + IMM2_SIZE + 1 + IMM2_SIZE);
+ cc += 1 + IMM2_SIZE + 1 + 2 * IMM2_SIZE;
+ break;
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+
+if (!minimize)
+ {
+ if (min == 0)
+ {
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+ /* Temporary release of STR_PTR. */
+ OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ zerolength = compile_ref_checks(common, ccbegin, NULL);
+ /* Restore if not zero length. */
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ }
+ else
+ {
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ zerolength = compile_ref_checks(common, ccbegin, &backtrack->topbacktracks);
+ }
+
+ if (min > 1 || max > 1)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 0);
+
+ label = LABEL();
+ compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, FALSE, FALSE);
+
+ if (min > 1 || max > 1)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+ if (min > 1)
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, min, label);
+ if (max > 1)
+ {
+ jump = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, max);
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ JUMPTO(SLJIT_JUMP, label);
+ JUMPHERE(jump);
+ }
+ }
+
+ if (max == 0)
+ {
+ /* Includes min > 1 case as well. */
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ JUMPTO(SLJIT_JUMP, label);
+ }
+
+ JUMPHERE(zerolength);
+ BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+
+ count_match(common);
+ return cc;
+ }
+
+allocate_stack(common, 2);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+if (type != OP_CRMINSTAR)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+
+if (min == 0)
+ {
+ zerolength = compile_ref_checks(common, ccbegin, NULL);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ jump = JUMP(SLJIT_JUMP);
+ }
+else
+ zerolength = compile_ref_checks(common, ccbegin, &backtrack->topbacktracks);
+
+BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+if (max > 0)
+ add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, max));
+
+compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, TRUE, TRUE);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+
+if (min > 1)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, min, BACKTRACK_AS(iterator_backtrack)->matchingpath);
+ }
+else if (max > 0)
+ OP2(SLJIT_ADD, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
+
+if (jump != NULL)
+ JUMPHERE(jump);
+JUMPHERE(zerolength);
+
+count_match(common);
+return cc;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_recurse_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+recurse_entry *entry = common->entries;
+recurse_entry *prev = NULL;
+sljit_sw start = GET(cc, 1);
+pcre_uchar *start_cc;
+BOOL needs_control_head;
+
+PUSH_BACKTRACK(sizeof(recurse_backtrack), cc, NULL);
+
+/* Inlining simple patterns. */
+if (get_framesize(common, common->start + start, NULL, TRUE, &needs_control_head) == no_stack)
+ {
+ start_cc = common->start + start;
+ compile_matchingpath(common, next_opcode(common, start_cc), bracketend(start_cc) - (1 + LINK_SIZE), backtrack);
+ BACKTRACK_AS(recurse_backtrack)->inlined_pattern = TRUE;
+ return cc + 1 + LINK_SIZE;
+ }
+
+while (entry != NULL)
+ {
+ if (entry->start == start)
+ break;
+ prev = entry;
+ entry = entry->next;
+ }
+
+if (entry == NULL)
+ {
+ entry = sljit_alloc_memory(compiler, sizeof(recurse_entry));
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return NULL;
+ entry->next = NULL;
+ entry->entry = NULL;
+ entry->calls = NULL;
+ entry->start = start;
+
+ if (prev != NULL)
+ prev->next = entry;
+ else
+ common->entries = entry;
+ }
+
+if (common->has_set_som && common->mark_ptr != 0)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+ }
+else if (common->has_set_som || common->mark_ptr != 0)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr);
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ }
+
+if (entry->entry == NULL)
+ add_jump(compiler, &entry->calls, JUMP(SLJIT_FAST_CALL));
+else
+ JUMPTO(SLJIT_FAST_CALL, entry->entry);
+/* Leave if the match is failed. */
+add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0));
+return cc + 1 + LINK_SIZE;
+}
+
+static int SLJIT_CALL do_callout(struct jit_arguments* arguments, PUBL(callout_block) *callout_block, pcre_uchar **jit_ovector)
+{
+const pcre_uchar *begin = arguments->begin;
+int *offset_vector = arguments->offsets;
+int offset_count = arguments->offset_count;
+int i;
+
+if (PUBL(callout) == NULL)
+ return 0;
+
+callout_block->version = 2;
+callout_block->callout_data = arguments->callout_data;
+
+/* Offsets in subject. */
+callout_block->subject_length = arguments->end - arguments->begin;
+callout_block->start_match = (pcre_uchar*)callout_block->subject - arguments->begin;
+callout_block->current_position = (pcre_uchar*)callout_block->offset_vector - arguments->begin;
+#if defined COMPILE_PCRE8
+callout_block->subject = (PCRE_SPTR)begin;
+#elif defined COMPILE_PCRE16
+callout_block->subject = (PCRE_SPTR16)begin;
+#elif defined COMPILE_PCRE32
+callout_block->subject = (PCRE_SPTR32)begin;
+#endif
+
+/* Convert and copy the JIT offset vector to the offset_vector array. */
+callout_block->capture_top = 0;
+callout_block->offset_vector = offset_vector;
+for (i = 2; i < offset_count; i += 2)
+ {
+ offset_vector[i] = jit_ovector[i] - begin;
+ offset_vector[i + 1] = jit_ovector[i + 1] - begin;
+ if (jit_ovector[i] >= begin)
+ callout_block->capture_top = i;
+ }
+
+callout_block->capture_top = (callout_block->capture_top >> 1) + 1;
+if (offset_count > 0)
+ offset_vector[0] = -1;
+if (offset_count > 1)
+ offset_vector[1] = -1;
+return (*PUBL(callout))(callout_block);
+}
+
+/* Aligning to 8 byte. */
+#define CALLOUT_ARG_SIZE \
+ (((int)sizeof(PUBL(callout_block)) + 7) & ~7)
+
+#define CALLOUT_ARG_OFFSET(arg) \
+ (-CALLOUT_ARG_SIZE + SLJIT_OFFSETOF(PUBL(callout_block), arg))
+
+static SLJIT_INLINE pcre_uchar *compile_callout_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+
+PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
+
+allocate_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));
+
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+SLJIT_ASSERT(common->capture_last_ptr != 0);
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_number), SLJIT_IMM, cc[1]);
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_last), TMP2, 0);
+
+/* These pointer sized fields temporarly stores internal variables. */
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(offset_vector), STR_PTR, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(subject), TMP2, 0);
+
+if (common->mark_ptr != 0)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr));
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(pattern_position), SLJIT_IMM, GET(cc, 2));
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(next_item_length), SLJIT_IMM, GET(cc, 2 + LINK_SIZE));
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(mark), (common->mark_ptr != 0) ? TMP2 : SLJIT_IMM, 0);
+
+/* Needed to save important temporary registers. */
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STACK_TOP, 0);
+OP2(SLJIT_SUB, SLJIT_SCRATCH_REG2, 0, STACK_TOP, 0, SLJIT_IMM, CALLOUT_ARG_SIZE);
+GET_LOCAL_BASE(SLJIT_SCRATCH_REG3, 0, OVECTOR_START);
+sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_callout));
+OP1(SLJIT_MOV_SI, SLJIT_RETURN_REG, 0, SLJIT_RETURN_REG, 0);
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+free_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));
+
+/* Check return value. */
+OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
+add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_C_SIG_GREATER));
+if (common->forced_quit_label == NULL)
+ add_jump(compiler, &common->forced_quit, JUMP(SLJIT_C_SIG_LESS));
+else
+ JUMPTO(SLJIT_C_SIG_LESS, common->forced_quit_label);
+return cc + 2 + 2 * LINK_SIZE;
+}
+
+#undef CALLOUT_ARG_SIZE
+#undef CALLOUT_ARG_OFFSET
+
+static pcre_uchar *compile_assert_matchingpath(compiler_common *common, pcre_uchar *cc, assert_backtrack *backtrack, BOOL conditional)
+{
+DEFINE_COMPILER;
+int framesize;
+int extrasize;
+BOOL needs_control_head;
+int private_data_ptr;
+backtrack_common altbacktrack;
+pcre_uchar *ccbegin;
+pcre_uchar opcode;
+pcre_uchar bra = OP_BRA;
+jump_list *tmp = NULL;
+jump_list **target = (conditional) ? &backtrack->condfailed : &backtrack->common.topbacktracks;
+jump_list **found;
+/* Saving previous accept variables. */
+BOOL save_local_exit = common->local_exit;
+BOOL save_positive_assert = common->positive_assert;
+then_trap_backtrack *save_then_trap = common->then_trap;
+struct sljit_label *save_quit_label = common->quit_label;
+struct sljit_label *save_accept_label = common->accept_label;
+jump_list *save_quit = common->quit;
+jump_list *save_positive_assert_quit = common->positive_assert_quit;
+jump_list *save_accept = common->accept;
+struct sljit_jump *jump;
+struct sljit_jump *brajump = NULL;
+
+/* Assert captures then. */
+common->then_trap = NULL;
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+ {
+ SLJIT_ASSERT(!conditional);
+ bra = *cc;
+ cc++;
+ }
+private_data_ptr = PRIVATE_DATA(cc);
+SLJIT_ASSERT(private_data_ptr != 0);
+framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head);
+backtrack->framesize = framesize;
+backtrack->private_data_ptr = private_data_ptr;
+opcode = *cc;
+SLJIT_ASSERT(opcode >= OP_ASSERT && opcode <= OP_ASSERTBACK_NOT);
+found = (opcode == OP_ASSERT || opcode == OP_ASSERTBACK) ? &tmp : target;
+ccbegin = cc;
+cc += GET(cc, 1);
+
+if (bra == OP_BRAMINZERO)
+ {
+ /* This is a braminzero backtrack path. */
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ brajump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ }
+
+if (framesize < 0)
+ {
+ extrasize = needs_control_head ? 2 : 1;
+ if (framesize == no_frame)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STACK_TOP, 0);
+ allocate_stack(common, extrasize);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ if (needs_control_head)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+ }
+ }
+else
+ {
+ extrasize = needs_control_head ? 3 : 2;
+ allocate_stack(common, framesize + extrasize);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP2, 0);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ if (needs_control_head)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_IMM, 0);
+ }
+ else
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+ init_frame(common, ccbegin, NULL, framesize + extrasize - 1, extrasize, FALSE);
+ }
+
+memset(&altbacktrack, 0, sizeof(backtrack_common));
+if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ /* Negative assert is stronger than positive assert. */
+ common->local_exit = TRUE;
+ common->quit_label = NULL;
+ common->quit = NULL;
+ common->positive_assert = FALSE;
+ }
+else
+ common->positive_assert = TRUE;
+common->positive_assert_quit = NULL;
+
+while (1)
+ {
+ common->accept_label = NULL;
+ common->accept = NULL;
+ altbacktrack.top = NULL;
+ altbacktrack.topbacktracks = NULL;
+
+ if (*ccbegin == OP_ALT)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+ altbacktrack.cc = ccbegin;
+ compile_matchingpath(common, ccbegin + 1 + LINK_SIZE, cc, &altbacktrack);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ {
+ if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ common->local_exit = save_local_exit;
+ common->quit_label = save_quit_label;
+ common->quit = save_quit;
+ }
+ common->positive_assert = save_positive_assert;
+ common->then_trap = save_then_trap;
+ common->accept_label = save_accept_label;
+ common->positive_assert_quit = save_positive_assert_quit;
+ common->accept = save_accept;
+ return NULL;
+ }
+ common->accept_label = LABEL();
+ if (common->accept != NULL)
+ set_jumps(common->accept, common->accept_label);
+
+ /* Reset stack. */
+ if (framesize < 0)
+ {
+ if (framesize == no_frame)
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ else
+ free_stack(common, extrasize);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
+ }
+ else
+ {
+ if ((opcode != OP_ASSERT_NOT && opcode != OP_ASSERTBACK_NOT) || conditional)
+ {
+ /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
+ if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), (framesize + 1) * sizeof(sljit_sw));
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ }
+ }
+
+ if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ /* We know that STR_PTR was stored on the top of the stack. */
+ if (conditional)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), needs_control_head ? sizeof(sljit_sw) : 0);
+ else if (bra == OP_BRAZERO)
+ {
+ if (framesize < 0)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (framesize + extrasize - 1) * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP1, 0);
+ }
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else if (framesize >= 0)
+ {
+ /* For OP_BRA and OP_BRAMINZERO. */
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
+ }
+ }
+ add_jump(compiler, found, JUMP(SLJIT_JUMP));
+
+ compile_backtrackingpath(common, altbacktrack.top);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ {
+ if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ common->local_exit = save_local_exit;
+ common->quit_label = save_quit_label;
+ common->quit = save_quit;
+ }
+ common->positive_assert = save_positive_assert;
+ common->then_trap = save_then_trap;
+ common->accept_label = save_accept_label;
+ common->positive_assert_quit = save_positive_assert_quit;
+ common->accept = save_accept;
+ return NULL;
+ }
+ set_jumps(altbacktrack.topbacktracks, LABEL());
+
+ if (*cc != OP_ALT)
+ break;
+
+ ccbegin = cc;
+ cc += GET(cc, 1);
+ }
+
+if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ SLJIT_ASSERT(common->positive_assert_quit == NULL);
+ /* Makes the check less complicated below. */
+ common->positive_assert_quit = common->quit;
+ }
+
+/* None of them matched. */
+if (common->positive_assert_quit != NULL)
+ {
+ jump = JUMP(SLJIT_JUMP);
+ set_jumps(common->positive_assert_quit, LABEL());
+ SLJIT_ASSERT(framesize != no_stack);
+ if (framesize < 0)
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw));
+ else
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
+ }
+ JUMPHERE(jump);
+ }
+
+if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(1));
+
+if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
+ {
+ /* Assert is failed. */
+ if (conditional || bra == OP_BRAZERO)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+ if (framesize < 0)
+ {
+ /* The topmost item should be 0. */
+ if (bra == OP_BRAZERO)
+ {
+ if (extrasize == 2)
+ free_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else
+ free_stack(common, extrasize);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1));
+ /* The topmost item should be 0. */
+ if (bra == OP_BRAZERO)
+ {
+ free_stack(common, framesize + extrasize - 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else
+ free_stack(common, framesize + extrasize);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP1, 0);
+ }
+ jump = JUMP(SLJIT_JUMP);
+ if (bra != OP_BRAZERO)
+ add_jump(compiler, target, jump);
+
+ /* Assert is successful. */
+ set_jumps(tmp, LABEL());
+ if (framesize < 0)
+ {
+ /* We know that STR_PTR was stored on the top of the stack. */
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
+ /* Keep the STR_PTR on the top of the stack. */
+ if (bra == OP_BRAZERO)
+ {
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ if (extrasize == 2)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ }
+ else if (bra == OP_BRAMINZERO)
+ {
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ }
+ else
+ {
+ if (bra == OP_BRA)
+ {
+ /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 2) * sizeof(sljit_sw));
+ }
+ else
+ {
+ /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_sw));
+ if (extrasize == 2)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ if (bra == OP_BRAMINZERO)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), bra == OP_BRAZERO ? STR_PTR : SLJIT_IMM, 0);
+ }
+ }
+ }
+
+ if (bra == OP_BRAZERO)
+ {
+ backtrack->matchingpath = LABEL();
+ SET_LABEL(jump, backtrack->matchingpath);
+ }
+ else if (bra == OP_BRAMINZERO)
+ {
+ JUMPTO(SLJIT_JUMP, backtrack->matchingpath);
+ JUMPHERE(brajump);
+ if (framesize >= 0)
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
+ }
+ set_jumps(backtrack->common.topbacktracks, LABEL());
+ }
+ }
+else
+ {
+ /* AssertNot is successful. */
+ if (framesize < 0)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ if (bra != OP_BRA)
+ {
+ if (extrasize == 2)
+ free_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else
+ free_stack(common, extrasize);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1));
+ /* The topmost item should be 0. */
+ if (bra != OP_BRA)
+ {
+ free_stack(common, framesize + extrasize - 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ else
+ free_stack(common, framesize + extrasize);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP1, 0);
+ }
+
+ if (bra == OP_BRAZERO)
+ backtrack->matchingpath = LABEL();
+ else if (bra == OP_BRAMINZERO)
+ {
+ JUMPTO(SLJIT_JUMP, backtrack->matchingpath);
+ JUMPHERE(brajump);
+ }
+
+ if (bra != OP_BRA)
+ {
+ SLJIT_ASSERT(found == &backtrack->common.topbacktracks);
+ set_jumps(backtrack->common.topbacktracks, LABEL());
+ backtrack->common.topbacktracks = NULL;
+ }
+ }
+
+if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+ {
+ common->local_exit = save_local_exit;
+ common->quit_label = save_quit_label;
+ common->quit = save_quit;
+ }
+common->positive_assert = save_positive_assert;
+common->then_trap = save_then_trap;
+common->accept_label = save_accept_label;
+common->positive_assert_quit = save_positive_assert_quit;
+common->accept = save_accept;
+return cc + 1 + LINK_SIZE;
+}
+
+static sljit_sw SLJIT_CALL do_searchovector(sljit_uw refno, sljit_sw* locals, pcre_uchar *name_table)
+{
+int condition = FALSE;
+pcre_uchar *slotA = name_table;
+pcre_uchar *slotB;
+sljit_sw name_count = locals[LOCALS0 / sizeof(sljit_sw)];
+sljit_sw name_entry_size = locals[LOCALS1 / sizeof(sljit_sw)];
+sljit_sw no_capture;
+int i;
+
+locals += refno & 0xff;
+refno >>= 8;
+no_capture = locals[1];
+
+for (i = 0; i < name_count; i++)
+ {
+ if (GET2(slotA, 0) == refno) break;
+ slotA += name_entry_size;
+ }
+
+if (i < name_count)
+ {
+ /* Found a name for the number - there can be only one; duplicate names
+ for different numbers are allowed, but not vice versa. First scan down
+ for duplicates. */
+
+ slotB = slotA;
+ while (slotB > name_table)
+ {
+ slotB -= name_entry_size;
+ if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+ {
+ condition = locals[GET2(slotB, 0) << 1] != no_capture;
+ if (condition) break;
+ }
+ else break;
+ }
+
+ /* Scan up for duplicates */
+ if (!condition)
+ {
+ slotB = slotA;
+ for (i++; i < name_count; i++)
+ {
+ slotB += name_entry_size;
+ if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+ {
+ condition = locals[GET2(slotB, 0) << 1] != no_capture;
+ if (condition) break;
+ }
+ else break;
+ }
+ }
+ }
+return condition;
+}
+
+static sljit_sw SLJIT_CALL do_searchgroups(sljit_uw recno, sljit_uw* locals, pcre_uchar *name_table)
+{
+int condition = FALSE;
+pcre_uchar *slotA = name_table;
+pcre_uchar *slotB;
+sljit_uw name_count = locals[LOCALS0 / sizeof(sljit_sw)];
+sljit_uw name_entry_size = locals[LOCALS1 / sizeof(sljit_sw)];
+sljit_uw group_num = locals[POSSESSIVE0 / sizeof(sljit_sw)];
+sljit_uw i;
+
+for (i = 0; i < name_count; i++)
+ {
+ if (GET2(slotA, 0) == recno) break;
+ slotA += name_entry_size;
+ }
+
+if (i < name_count)
+ {
+ /* Found a name for the number - there can be only one; duplicate
+ names for different numbers are allowed, but not vice versa. First
+ scan down for duplicates. */
+
+ slotB = slotA;
+ while (slotB > name_table)
+ {
+ slotB -= name_entry_size;
+ if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+ {
+ condition = GET2(slotB, 0) == group_num;
+ if (condition) break;
+ }
+ else break;
+ }
+
+ /* Scan up for duplicates */
+ if (!condition)
+ {
+ slotB = slotA;
+ for (i++; i < name_count; i++)
+ {
+ slotB += name_entry_size;
+ if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+ {
+ condition = GET2(slotB, 0) == group_num;
+ if (condition) break;
+ }
+ else break;
+ }
+ }
+ }
+return condition;
+}
+
+static SLJIT_INLINE void match_once_common(compiler_common *common, pcre_uchar ket, int framesize, int private_data_ptr, BOOL has_alternatives, BOOL needs_control_head)
+{
+DEFINE_COMPILER;
+int stacksize;
+
+if (framesize < 0)
+ {
+ if (framesize == no_frame)
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ else
+ {
+ stacksize = needs_control_head ? 1 : 0;
+ if (ket != OP_KET || has_alternatives)
+ stacksize++;
+ free_stack(common, stacksize);
+ }
+
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), (ket != OP_KET || has_alternatives) ? sizeof(sljit_sw) : 0);
+
+ /* TMP2 which is set here used by OP_KETRMAX below. */
+ if (ket == OP_KETRMAX)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), 0);
+ else if (ket == OP_KETRMIN)
+ {
+ /* Move the STR_PTR to the private_data_ptr. */
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_MEM1(STACK_TOP), 0);
+ }
+ }
+else
+ {
+ stacksize = (ket != OP_KET || has_alternatives) ? 2 : 1;
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, (framesize + stacksize) * sizeof(sljit_sw));
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 0);
+
+ if (ket == OP_KETRMAX)
+ {
+ /* TMP2 which is set here used by OP_KETRMAX below. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ }
+ }
+if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, TMP1, 0);
+}
+
+static SLJIT_INLINE int match_capture_common(compiler_common *common, int stacksize, int offset, int private_data_ptr)
+{
+DEFINE_COMPILER;
+
+if (common->capture_last_ptr != 0)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
+ stacksize++;
+ }
+if (common->optimized_cbracket[offset >> 1] == 0)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ stacksize += 2;
+ }
+return stacksize;
+}
+
+/*
+ Handling bracketed expressions is probably the most complex part.
+
+ Stack layout naming characters:
+ S - Push the current STR_PTR
+ 0 - Push a 0 (NULL)
+ A - Push the current STR_PTR. Needed for restoring the STR_PTR
+ before the next alternative. Not pushed if there are no alternatives.
+ M - Any values pushed by the current alternative. Can be empty, or anything.
+ C - Push the previous OVECTOR(i), OVECTOR(i+1) and OVECTOR_PRIV(i) to the stack.
+ L - Push the previous local (pointed by localptr) to the stack
+ () - opional values stored on the stack
+ ()* - optonal, can be stored multiple times
+
+ The following list shows the regular expression templates, their PCRE byte codes
+ and stack layout supported by pcre-sljit.
+
+ (?:) OP_BRA | OP_KET A M
+ () OP_CBRA | OP_KET C M
+ (?:)+ OP_BRA | OP_KETRMAX 0 A M S ( A M S )*
+ OP_SBRA | OP_KETRMAX 0 L M S ( L M S )*
+ (?:)+? OP_BRA | OP_KETRMIN 0 A M S ( A M S )*
+ OP_SBRA | OP_KETRMIN 0 L M S ( L M S )*
+ ()+ OP_CBRA | OP_KETRMAX 0 C M S ( C M S )*
+ OP_SCBRA | OP_KETRMAX 0 C M S ( C M S )*
+ ()+? OP_CBRA | OP_KETRMIN 0 C M S ( C M S )*
+ OP_SCBRA | OP_KETRMIN 0 C M S ( C M S )*
+ (?:)? OP_BRAZERO | OP_BRA | OP_KET S ( A M 0 )
+ (?:)?? OP_BRAMINZERO | OP_BRA | OP_KET S ( A M 0 )
+ ()? OP_BRAZERO | OP_CBRA | OP_KET S ( C M 0 )
+ ()?? OP_BRAMINZERO | OP_CBRA | OP_KET S ( C M 0 )
+ (?:)* OP_BRAZERO | OP_BRA | OP_KETRMAX S 0 ( A M S )*
+ OP_BRAZERO | OP_SBRA | OP_KETRMAX S 0 ( L M S )*
+ (?:)*? OP_BRAMINZERO | OP_BRA | OP_KETRMIN S 0 ( A M S )*
+ OP_BRAMINZERO | OP_SBRA | OP_KETRMIN S 0 ( L M S )*
+ ()* OP_BRAZERO | OP_CBRA | OP_KETRMAX S 0 ( C M S )*
+ OP_BRAZERO | OP_SCBRA | OP_KETRMAX S 0 ( C M S )*
+ ()*? OP_BRAMINZERO | OP_CBRA | OP_KETRMIN S 0 ( C M S )*
+ OP_BRAMINZERO | OP_SCBRA | OP_KETRMIN S 0 ( C M S )*
+
+
+ Stack layout naming characters:
+ A - Push the alternative index (starting from 0) on the stack.
+ Not pushed if there is no alternatives.
+ M - Any values pushed by the current alternative. Can be empty, or anything.
+
+ The next list shows the possible content of a bracket:
+ (|) OP_*BRA | OP_ALT ... M A
+ (?()|) OP_*COND | OP_ALT M A
+ (?>|) OP_ONCE | OP_ALT ... [stack trace] M A
+ (?>|) OP_ONCE_NC | OP_ALT ... [stack trace] M A
+ Or nothing, if trace is unnecessary
+*/
+
+static pcre_uchar *compile_bracket_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+int private_data_ptr = 0;
+int offset = 0;
+int stacksize;
+int repeat_ptr = 0, repeat_length = 0;
+int repeat_type = 0, repeat_count = 0;
+pcre_uchar *ccbegin;
+pcre_uchar *matchingpath;
+pcre_uchar bra = OP_BRA;
+pcre_uchar ket;
+assert_backtrack *assert;
+BOOL has_alternatives;
+BOOL needs_control_head = FALSE;
+struct sljit_jump *jump;
+struct sljit_jump *skip;
+struct sljit_label *rmax_label = NULL;
+struct sljit_jump *braminzero = NULL;
+
+PUSH_BACKTRACK(sizeof(bracket_backtrack), cc, NULL);
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+ {
+ bra = *cc;
+ cc++;
+ opcode = *cc;
+ }
+
+opcode = *cc;
+ccbegin = cc;
+matchingpath = bracketend(cc) - 1 - LINK_SIZE;
+ket = *matchingpath;
+if (ket == OP_KET && PRIVATE_DATA(matchingpath) != 0)
+ {
+ repeat_ptr = PRIVATE_DATA(matchingpath);
+ repeat_length = PRIVATE_DATA(matchingpath + 1);
+ repeat_type = PRIVATE_DATA(matchingpath + 2);
+ repeat_count = PRIVATE_DATA(matchingpath + 3);
+ SLJIT_ASSERT(repeat_length != 0 && repeat_type != 0 && repeat_count != 0);
+ if (repeat_type == OP_UPTO)
+ ket = OP_KETRMAX;
+ if (repeat_type == OP_MINUPTO)
+ ket = OP_KETRMIN;
+ }
+
+if ((opcode == OP_COND || opcode == OP_SCOND) && cc[1 + LINK_SIZE] == OP_DEF)
+ {
+ /* Drop this bracket_backtrack. */
+ parent->top = backtrack->prev;
+ return matchingpath + 1 + LINK_SIZE + repeat_length;
+ }
+
+matchingpath = ccbegin + 1 + LINK_SIZE;
+SLJIT_ASSERT(ket == OP_KET || ket == OP_KETRMAX || ket == OP_KETRMIN);
+SLJIT_ASSERT(!((bra == OP_BRAZERO && ket == OP_KETRMIN) || (bra == OP_BRAMINZERO && ket == OP_KETRMAX)));
+cc += GET(cc, 1);
+
+has_alternatives = *cc == OP_ALT;
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+ {
+ has_alternatives = (*matchingpath == OP_RREF) ? FALSE : TRUE;
+ if (*matchingpath == OP_NRREF)
+ {
+ stacksize = GET2(matchingpath, 1);
+ if (common->currententry == NULL || stacksize == RREF_ANY)
+ has_alternatives = FALSE;
+ else if (common->currententry->start == 0)
+ has_alternatives = stacksize != 0;
+ else
+ has_alternatives = stacksize != (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
+ }
+ }
+
+if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
+ opcode = OP_SCOND;
+if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
+ opcode = OP_ONCE;
+
+if (opcode == OP_CBRA || opcode == OP_SCBRA)
+ {
+ /* Capturing brackets has a pre-allocated space. */
+ offset = GET2(ccbegin, 1 + LINK_SIZE);
+ if (common->optimized_cbracket[offset] == 0)
+ {
+ private_data_ptr = OVECTOR_PRIV(offset);
+ offset <<= 1;
+ }
+ else
+ {
+ offset <<= 1;
+ private_data_ptr = OVECTOR(offset);
+ }
+ BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr;
+ matchingpath += IMM2_SIZE;
+ }
+else if (opcode == OP_ONCE || opcode == OP_SBRA || opcode == OP_SCOND)
+ {
+ /* Other brackets simply allocate the next entry. */
+ private_data_ptr = PRIVATE_DATA(ccbegin);
+ SLJIT_ASSERT(private_data_ptr != 0);
+ BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr;
+ if (opcode == OP_ONCE)
+ BACKTRACK_AS(bracket_backtrack)->u.framesize = get_framesize(common, ccbegin, NULL, FALSE, &needs_control_head);
+ }
+
+/* Instructions before the first alternative. */
+stacksize = 0;
+if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
+ stacksize++;
+if (bra == OP_BRAZERO)
+ stacksize++;
+
+if (stacksize > 0)
+ allocate_stack(common, stacksize);
+
+stacksize = 0;
+if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+ stacksize++;
+ }
+
+if (bra == OP_BRAZERO)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+
+if (bra == OP_BRAMINZERO)
+ {
+ /* This is a backtrack path! (Since the try-path of OP_BRAMINZERO matches to the empty string) */
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ if (ket != OP_KETRMIN)
+ {
+ free_stack(common, 1);
+ braminzero = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ }
+ else
+ {
+ if (opcode == OP_ONCE || opcode >= OP_SBRA)
+ {
+ jump = CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ /* Nothing stored during the first run. */
+ skip = JUMP(SLJIT_JUMP);
+ JUMPHERE(jump);
+ /* Checking zero-length iteration. */
+ if (opcode != OP_ONCE || BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
+ {
+ /* When we come from outside, private_data_ptr contains the previous STR_PTR. */
+ braminzero = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ }
+ else
+ {
+ /* Except when the whole stack frame must be saved. */
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ braminzero = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (BACKTRACK_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw));
+ }
+ JUMPHERE(skip);
+ }
+ else
+ {
+ jump = CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ JUMPHERE(jump);
+ }
+ }
+ }
+
+if (repeat_type != 0)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, repeat_count);
+ if (repeat_type == OP_EXACT)
+ rmax_label = LABEL();
+ }
+
+if (ket == OP_KETRMIN)
+ BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL();
+
+if (ket == OP_KETRMAX)
+ {
+ rmax_label = LABEL();
+ if (has_alternatives && opcode != OP_ONCE && opcode < OP_SBRA && repeat_type == 0)
+ BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = rmax_label;
+ }
+
+/* Handling capturing brackets and alternatives. */
+if (opcode == OP_ONCE)
+ {
+ stacksize = 0;
+ if (needs_control_head)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ stacksize++;
+ }
+
+ if (BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
+ {
+ /* Neither capturing brackets nor recursions are found in the block. */
+ if (ket == OP_KETRMIN)
+ {
+ stacksize += 2;
+ if (!needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ }
+ else
+ {
+ if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STACK_TOP, 0);
+ if (ket == OP_KETRMAX || has_alternatives)
+ stacksize++;
+ }
+
+ if (stacksize > 0)
+ allocate_stack(common, stacksize);
+
+ stacksize = 0;
+ if (needs_control_head)
+ {
+ stacksize++;
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ }
+
+ if (ket == OP_KETRMIN)
+ {
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+ if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame)
+ OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, needs_control_head ? (2 * sizeof(sljit_sw)) : sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0);
+ }
+ else if (ket == OP_KETRMAX || has_alternatives)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+ }
+ else
+ {
+ if (ket != OP_KET || has_alternatives)
+ stacksize++;
+
+ stacksize += BACKTRACK_AS(bracket_backtrack)->u.framesize + 1;
+ allocate_stack(common, stacksize);
+
+ if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+
+ stacksize = needs_control_head ? 1 : 0;
+ if (ket != OP_KET || has_alternatives)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP2, 0);
+ stacksize++;
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
+ }
+ init_frame(common, ccbegin, NULL, BACKTRACK_AS(bracket_backtrack)->u.framesize + stacksize, stacksize + 1, FALSE);
+ }
+ }
+else if (opcode == OP_CBRA || opcode == OP_SCBRA)
+ {
+ /* Saving the previous values. */
+ if (common->optimized_cbracket[offset >> 1] != 0)
+ {
+ SLJIT_ASSERT(private_data_ptr == OVECTOR(offset));
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr + sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ }
+ }
+else if (opcode == OP_SBRA || opcode == OP_SCOND)
+ {
+ /* Saving the previous value. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ }
+else if (has_alternatives)
+ {
+ /* Pushing the starting string pointer. */
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ }
+
+/* Generating code for the first alternative. */
+if (opcode == OP_COND || opcode == OP_SCOND)
+ {
+ if (*matchingpath == OP_CREF)
+ {
+ SLJIT_ASSERT(has_alternatives);
+ add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed),
+ CMP(SLJIT_C_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(GET2(matchingpath, 1) << 1), SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+ matchingpath += 1 + IMM2_SIZE;
+ }
+ else if (*matchingpath == OP_NCREF)
+ {
+ SLJIT_ASSERT(has_alternatives);
+ stacksize = GET2(matchingpath, 1);
+ jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(stacksize << 1), SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STACK_TOP, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, SLJIT_IMM, common->name_count);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, common->name_entry_size);
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG1, 0, SLJIT_IMM, (stacksize << 8) | (common->ovector_start / sizeof(sljit_sw)));
+ GET_LOCAL_BASE(SLJIT_SCRATCH_REG2, 0, 0);
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, common->name_table);
+ sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_searchovector));
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+ add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), CMP(SLJIT_C_EQUAL, SLJIT_SCRATCH_REG1, 0, SLJIT_IMM, 0));
+
+ JUMPHERE(jump);
+ matchingpath += 1 + IMM2_SIZE;
+ }
+ else if (*matchingpath == OP_RREF || *matchingpath == OP_NRREF)
+ {
+ /* Never has other case. */
+ BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL;
+
+ stacksize = GET2(matchingpath, 1);
+ if (common->currententry == NULL)
+ stacksize = 0;
+ else if (stacksize == RREF_ANY)
+ stacksize = 1;
+ else if (common->currententry->start == 0)
+ stacksize = stacksize == 0;
+ else
+ stacksize = stacksize == (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
+
+ if (*matchingpath == OP_RREF || stacksize || common->currententry == NULL)
+ {
+ SLJIT_ASSERT(!has_alternatives);
+ if (stacksize != 0)
+ matchingpath += 1 + IMM2_SIZE;
+ else
+ {
+ if (*cc == OP_ALT)
+ {
+ matchingpath = cc + 1 + LINK_SIZE;
+ cc += GET(cc, 1);
+ }
+ else
+ matchingpath = cc;
+ }
+ }
+ else
+ {
+ SLJIT_ASSERT(has_alternatives);
+
+ stacksize = GET2(matchingpath, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STACK_TOP, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, SLJIT_IMM, common->name_count);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, common->name_entry_size);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, GET2(common->start, common->currententry->start + 1 + LINK_SIZE));
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG1, 0, SLJIT_IMM, stacksize);
+ GET_LOCAL_BASE(SLJIT_SCRATCH_REG2, 0, 0);
+ OP1(SLJIT_MOV, SLJIT_SCRATCH_REG3, 0, SLJIT_IMM, common->name_table);
+ sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_searchgroups));
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+ add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), CMP(SLJIT_C_EQUAL, SLJIT_SCRATCH_REG1, 0, SLJIT_IMM, 0));
+ matchingpath += 1 + IMM2_SIZE;
+ }
+ }
+ else
+ {
+ SLJIT_ASSERT(has_alternatives && *matchingpath >= OP_ASSERT && *matchingpath <= OP_ASSERTBACK_NOT);
+ /* Similar code as PUSH_BACKTRACK macro. */
+ assert = sljit_alloc_memory(compiler, sizeof(assert_backtrack));
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return NULL;
+ memset(assert, 0, sizeof(assert_backtrack));
+ assert->common.cc = matchingpath;
+ BACKTRACK_AS(bracket_backtrack)->u.assert = assert;
+ matchingpath = compile_assert_matchingpath(common, matchingpath, assert, TRUE);
+ }
+ }
+
+compile_matchingpath(common, matchingpath, cc, backtrack);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return NULL;
+
+if (opcode == OP_ONCE)
+ match_once_common(common, ket, BACKTRACK_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head);
+
+stacksize = 0;
+if (repeat_type == OP_MINUPTO)
+ {
+ /* We need to preserve the counter. TMP2 will be used below. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr);
+ stacksize++;
+ }
+if (ket != OP_KET || bra != OP_BRA)
+ stacksize++;
+if (offset != 0)
+ {
+ if (common->capture_last_ptr != 0)
+ stacksize++;
+ if (common->optimized_cbracket[offset >> 1] == 0)
+ stacksize += 2;
+ }
+if (has_alternatives && opcode != OP_ONCE)
+ stacksize++;
+
+if (stacksize > 0)
+ allocate_stack(common, stacksize);
+
+stacksize = 0;
+if (repeat_type == OP_MINUPTO)
+ {
+ /* TMP2 was set above. */
+ OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1);
+ stacksize++;
+ }
+
+if (ket != OP_KET || bra != OP_BRA)
+ {
+ if (ket != OP_KET)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+ else
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+ stacksize++;
+ }
+
+if (offset != 0)
+ stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
+
+if (has_alternatives)
+ {
+ if (opcode != OP_ONCE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+ if (ket != OP_KETRMAX)
+ BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
+ }
+
+/* Must be after the matchingpath label. */
+if (offset != 0 && common->optimized_cbracket[offset >> 1] != 0)
+ {
+ SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+ }
+
+if (ket == OP_KETRMAX)
+ {
+ if (repeat_type != 0)
+ {
+ if (has_alternatives)
+ BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, rmax_label);
+ /* Drop STR_PTR for greedy plus quantifier. */
+ if (opcode != OP_ONCE)
+ free_stack(common, 1);
+ }
+ else if (opcode == OP_ONCE || opcode >= OP_SBRA)
+ {
+ if (has_alternatives)
+ BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
+ /* Checking zero-length iteration. */
+ if (opcode != OP_ONCE)
+ {
+ CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STR_PTR, 0, rmax_label);
+ /* Drop STR_PTR for greedy plus quantifier. */
+ if (bra != OP_BRAZERO)
+ free_stack(common, 1);
+ }
+ else
+ /* TMP2 must contain the starting STR_PTR. */
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, rmax_label);
+ }
+ else
+ JUMPTO(SLJIT_JUMP, rmax_label);
+ BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL();
+ }
+
+if (repeat_type == OP_EXACT)
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, rmax_label);
+ }
+else if (repeat_type == OP_UPTO)
+ {
+ /* We need to preserve the counter. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr);
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ }
+
+if (bra == OP_BRAZERO)
+ BACKTRACK_AS(bracket_backtrack)->zero_matchingpath = LABEL();
+
+if (bra == OP_BRAMINZERO)
+ {
+ /* This is a backtrack path! (From the viewpoint of OP_BRAMINZERO) */
+ JUMPTO(SLJIT_JUMP, ((braminzero_backtrack *)parent)->matchingpath);
+ if (braminzero != NULL)
+ {
+ JUMPHERE(braminzero);
+ /* We need to release the end pointer to perform the
+ backtrack for the zero-length iteration. When
+ framesize is < 0, OP_ONCE will do the release itself. */
+ if (opcode == OP_ONCE && BACKTRACK_AS(bracket_backtrack)->u.framesize >= 0)
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ }
+ else if (ket == OP_KETRMIN && opcode != OP_ONCE)
+ free_stack(common, 1);
+ }
+ /* Continue to the normal backtrack. */
+ }
+
+if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO)
+ count_match(common);
+
+/* Skip the other alternatives. */
+while (*cc == OP_ALT)
+ cc += GET(cc, 1);
+cc += 1 + LINK_SIZE;
+
+/* Temporarily encoding the needs_control_head in framesize. */
+if (opcode == OP_ONCE)
+ BACKTRACK_AS(bracket_backtrack)->u.framesize = (BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0);
+return cc + repeat_length;
+}
+
+static pcre_uchar *compile_bracketpos_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+int private_data_ptr;
+int cbraprivptr = 0;
+BOOL needs_control_head;
+int framesize;
+int stacksize;
+int offset = 0;
+BOOL zero = FALSE;
+pcre_uchar *ccbegin = NULL;
+int stack; /* Also contains the offset of control head. */
+struct sljit_label *loop = NULL;
+struct jump_list *emptymatch = NULL;
+
+PUSH_BACKTRACK(sizeof(bracketpos_backtrack), cc, NULL);
+if (*cc == OP_BRAPOSZERO)
+ {
+ zero = TRUE;
+ cc++;
+ }
+
+opcode = *cc;
+private_data_ptr = PRIVATE_DATA(cc);
+SLJIT_ASSERT(private_data_ptr != 0);
+BACKTRACK_AS(bracketpos_backtrack)->private_data_ptr = private_data_ptr;
+switch(opcode)
+ {
+ case OP_BRAPOS:
+ case OP_SBRAPOS:
+ ccbegin = cc + 1 + LINK_SIZE;
+ break;
+
+ case OP_CBRAPOS:
+ case OP_SCBRAPOS:
+ offset = GET2(cc, 1 + LINK_SIZE);
+ /* This case cannot be optimized in the same was as
+ normal capturing brackets. */
+ SLJIT_ASSERT(common->optimized_cbracket[offset] == 0);
+ cbraprivptr = OVECTOR_PRIV(offset);
+ offset <<= 1;
+ ccbegin = cc + 1 + LINK_SIZE + IMM2_SIZE;
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+
+framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head);
+BACKTRACK_AS(bracketpos_backtrack)->framesize = framesize;
+if (framesize < 0)
+ {
+ if (offset != 0)
+ {
+ stacksize = 2;
+ if (common->capture_last_ptr != 0)
+ stacksize++;
+ }
+ else
+ stacksize = 1;
+
+ if (needs_control_head)
+ stacksize++;
+ if (!zero)
+ stacksize++;
+
+ BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
+ allocate_stack(common, stacksize);
+ if (framesize == no_frame)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STACK_TOP, 0);
+
+ stack = 0;
+ if (offset != 0)
+ {
+ stack = 2;
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+ if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ if (common->capture_last_ptr != 0)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0);
+ stack = 3;
+ }
+ }
+ else
+ {
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ stack = 1;
+ }
+
+ if (needs_control_head)
+ stack++;
+ if (!zero)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), SLJIT_IMM, 1);
+ if (needs_control_head)
+ {
+ stack--;
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0);
+ }
+ }
+else
+ {
+ stacksize = framesize + 1;
+ if (!zero)
+ stacksize++;
+ if (needs_control_head)
+ stacksize++;
+ if (offset == 0)
+ stacksize++;
+ BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
+
+ allocate_stack(common, stacksize);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ if (needs_control_head)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, -STACK(stacksize - 1));
+
+ stack = 0;
+ if (!zero)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 1);
+ stack = 1;
+ }
+ if (needs_control_head)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0);
+ stack++;
+ }
+ if (offset == 0)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), STR_PTR, 0);
+ stack++;
+ }
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP1, 0);
+ init_frame(common, cc, NULL, stacksize - 1, stacksize - framesize, FALSE);
+ stack -= 1 + (offset == 0);
+ }
+
+if (offset != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+
+loop = LABEL();
+while (*cc != OP_KETRPOS)
+ {
+ backtrack->top = NULL;
+ backtrack->topbacktracks = NULL;
+ cc += GET(cc, 1);
+
+ compile_matchingpath(common, ccbegin, cc, backtrack);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return NULL;
+
+ if (framesize < 0)
+ {
+ if (framesize == no_frame)
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+
+ if (offset != 0)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+ if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ }
+ else
+ {
+ if (opcode == OP_SBRAPOS)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ }
+
+ if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
+ add_jump(compiler, &emptymatch, CMP(SLJIT_C_EQUAL, TMP1, 0, STR_PTR, 0));
+
+ if (!zero)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
+ }
+ else
+ {
+ if (offset != 0)
+ {
+ OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+ if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP2(SLJIT_ADD, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+ if (opcode == OP_SBRAPOS)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw), STR_PTR, 0);
+ }
+
+ if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
+ add_jump(compiler, &emptymatch, CMP(SLJIT_C_EQUAL, TMP1, 0, STR_PTR, 0));
+
+ if (!zero)
+ {
+ if (framesize < 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
+ else
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+ }
+
+ if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(stack));
+
+ JUMPTO(SLJIT_JUMP, loop);
+ flush_stubs(common);
+
+ compile_backtrackingpath(common, backtrack->top);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return NULL;
+ set_jumps(backtrack->topbacktracks, LABEL());
+
+ if (framesize < 0)
+ {
+ if (offset != 0)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+ else
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ }
+ else
+ {
+ if (offset != 0)
+ {
+ /* Last alternative. */
+ if (*cc == OP_KETRPOS)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
+ }
+ }
+
+ if (*cc == OP_KETRPOS)
+ break;
+ ccbegin = cc + 1 + LINK_SIZE;
+ }
+
+/* We don't have to restore the control head in case of a failed match. */
+
+backtrack->topbacktracks = NULL;
+if (!zero)
+ {
+ if (framesize < 0)
+ add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0));
+ else /* TMP2 is set to [private_data_ptr] above. */
+ add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(TMP2), (stacksize - 1) * sizeof(sljit_sw), SLJIT_IMM, 0));
+ }
+
+/* None of them matched. */
+set_jumps(emptymatch, LABEL());
+count_match(common);
+return cc + 1 + LINK_SIZE;
+}
+
+static SLJIT_INLINE pcre_uchar *get_iterator_parameters(compiler_common *common, pcre_uchar *cc, pcre_uchar *opcode, pcre_uchar *type, int *arg1, int *arg2, pcre_uchar **end)
+{
+int class_len;
+
+*opcode = *cc;
+if (*opcode >= OP_STAR && *opcode <= OP_POSUPTO)
+ {
+ cc++;
+ *type = OP_CHAR;
+ }
+else if (*opcode >= OP_STARI && *opcode <= OP_POSUPTOI)
+ {
+ cc++;
+ *type = OP_CHARI;
+ *opcode -= OP_STARI - OP_STAR;
+ }
+else if (*opcode >= OP_NOTSTAR && *opcode <= OP_NOTPOSUPTO)
+ {
+ cc++;
+ *type = OP_NOT;
+ *opcode -= OP_NOTSTAR - OP_STAR;
+ }
+else if (*opcode >= OP_NOTSTARI && *opcode <= OP_NOTPOSUPTOI)
+ {
+ cc++;
+ *type = OP_NOTI;
+ *opcode -= OP_NOTSTARI - OP_STAR;
+ }
+else if (*opcode >= OP_TYPESTAR && *opcode <= OP_TYPEPOSUPTO)
+ {
+ cc++;
+ *opcode -= OP_TYPESTAR - OP_STAR;
+ *type = 0;
+ }
+else
+ {
+ SLJIT_ASSERT(*opcode >= OP_CLASS || *opcode <= OP_XCLASS);
+ *type = *opcode;
+ cc++;
+ class_len = (*type < OP_XCLASS) ? (int)(1 + (32 / sizeof(pcre_uchar))) : GET(cc, 0);
+ *opcode = cc[class_len - 1];
+ if (*opcode >= OP_CRSTAR && *opcode <= OP_CRMINQUERY)
+ {
+ *opcode -= OP_CRSTAR - OP_STAR;
+ if (end != NULL)
+ *end = cc + class_len;
+ }
+ else
+ {
+ SLJIT_ASSERT(*opcode == OP_CRRANGE || *opcode == OP_CRMINRANGE);
+ *arg1 = GET2(cc, (class_len + IMM2_SIZE));
+ *arg2 = GET2(cc, class_len);
+
+ if (*arg2 == 0)
+ {
+ SLJIT_ASSERT(*arg1 != 0);
+ *opcode = (*opcode == OP_CRRANGE) ? OP_UPTO : OP_MINUPTO;
+ }
+ if (*arg1 == *arg2)
+ *opcode = OP_EXACT;
+
+ if (end != NULL)
+ *end = cc + class_len + 2 * IMM2_SIZE;
+ }
+ return cc;
+ }
+
+if (*opcode == OP_UPTO || *opcode == OP_MINUPTO || *opcode == OP_EXACT || *opcode == OP_POSUPTO)
+ {
+ *arg1 = GET2(cc, 0);
+ cc += IMM2_SIZE;
+ }
+
+if (*type == 0)
+ {
+ *type = *cc;
+ if (end != NULL)
+ *end = next_opcode(common, cc);
+ cc++;
+ return cc;
+ }
+
+if (end != NULL)
+ {
+ *end = cc + 1;
+#ifdef SUPPORT_UTF
+ if (common->utf && HAS_EXTRALEN(*cc)) *end += GET_EXTRALEN(*cc);
+#endif
+ }
+return cc;
+}
+
+static pcre_uchar *compile_iterator_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+pcre_uchar type;
+int arg1 = -1, arg2 = -1;
+pcre_uchar* end;
+jump_list *nomatch = NULL;
+struct sljit_jump *jump = NULL;
+struct sljit_label *label;
+int private_data_ptr = PRIVATE_DATA(cc);
+int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_LOCALS_REG);
+int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr;
+int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw);
+int tmp_base, tmp_offset;
+
+PUSH_BACKTRACK(sizeof(iterator_backtrack), cc, NULL);
+
+cc = get_iterator_parameters(common, cc, &opcode, &type, &arg1, &arg2, &end);
+
+switch(type)
+ {
+ case OP_NOT_DIGIT:
+ case OP_DIGIT:
+ case OP_NOT_WHITESPACE:
+ case OP_WHITESPACE:
+ case OP_NOT_WORDCHAR:
+ case OP_WORDCHAR:
+ case OP_ANY:
+ case OP_ALLANY:
+ case OP_ANYBYTE:
+ case OP_ANYNL:
+ case OP_NOT_HSPACE:
+ case OP_HSPACE:
+ case OP_NOT_VSPACE:
+ case OP_VSPACE:
+ case OP_CHAR:
+ case OP_CHARI:
+ case OP_NOT:
+ case OP_NOTI:
+ case OP_CLASS:
+ case OP_NCLASS:
+ tmp_base = TMP3;
+ tmp_offset = 0;
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ /* Fall through. */
+
+ case OP_EXTUNI:
+ case OP_XCLASS:
+ case OP_NOTPROP:
+ case OP_PROP:
+ tmp_base = SLJIT_MEM1(SLJIT_LOCALS_REG);
+ tmp_offset = POSSESSIVE0;
+ break;
+ }
+
+switch(opcode)
+ {
+ case OP_STAR:
+ case OP_PLUS:
+ case OP_UPTO:
+ case OP_CRRANGE:
+ if (type == OP_ANYNL || type == OP_EXTUNI)
+ {
+ SLJIT_ASSERT(private_data_ptr == 0);
+ if (opcode == OP_STAR || opcode == OP_UPTO)
+ {
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+ }
+ else
+ {
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ }
+
+ if (opcode == OP_UPTO || opcode == OP_CRRANGE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 0);
+
+ label = LABEL();
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ if (opcode == OP_UPTO || opcode == OP_CRRANGE)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ if (opcode == OP_CRRANGE && arg2 > 0)
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg2, label);
+ if (opcode == OP_UPTO || (opcode == OP_CRRANGE && arg1 > 0))
+ jump = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, arg1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+ }
+
+ /* We cannot use TMP3 because of this allocate_stack. */
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ JUMPTO(SLJIT_JUMP, label);
+ if (jump != NULL)
+ JUMPHERE(jump);
+ }
+ else
+ {
+ if (opcode == OP_PLUS)
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ if (private_data_ptr == 0)
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ if (opcode <= OP_PLUS)
+ OP1(SLJIT_MOV, base, offset1, STR_PTR, 0);
+ else
+ OP1(SLJIT_MOV, base, offset1, SLJIT_IMM, 1);
+ label = LABEL();
+ compile_char1_matchingpath(common, type, cc, &nomatch);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ if (opcode <= OP_PLUS)
+ JUMPTO(SLJIT_JUMP, label);
+ else if (opcode == OP_CRRANGE && arg1 == 0)
+ {
+ OP2(SLJIT_ADD, base, offset1, base, offset1, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_JUMP, label);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, base, offset1);
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, base, offset1, TMP1, 0);
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 1, label);
+ }
+ set_jumps(nomatch, LABEL());
+ if (opcode == OP_CRRANGE)
+ add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_LESS, base, offset1, SLJIT_IMM, arg2 + 1));
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ }
+ BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+ break;
+
+ case OP_MINSTAR:
+ case OP_MINPLUS:
+ if (opcode == OP_MINPLUS)
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ if (private_data_ptr == 0)
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+ break;
+
+ case OP_MINUPTO:
+ case OP_CRMINRANGE:
+ if (private_data_ptr == 0)
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ OP1(SLJIT_MOV, base, offset1, SLJIT_IMM, 1);
+ if (opcode == OP_CRMINRANGE)
+ add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+ BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+ break;
+
+ case OP_QUERY:
+ case OP_MINQUERY:
+ if (private_data_ptr == 0)
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ if (opcode == OP_QUERY)
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL();
+ break;
+
+ case OP_EXACT:
+ OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, arg1);
+ label = LABEL();
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, label);
+ break;
+
+ case OP_POSSTAR:
+ case OP_POSPLUS:
+ case OP_POSUPTO:
+ if (opcode == OP_POSPLUS)
+ compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks);
+ if (opcode == OP_POSUPTO)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, SLJIT_IMM, arg1);
+ OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
+ label = LABEL();
+ compile_char1_matchingpath(common, type, cc, &nomatch);
+ OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
+ if (opcode != OP_POSUPTO)
+ JUMPTO(SLJIT_JUMP, label);
+ else
+ {
+ OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, SLJIT_IMM, 1);
+ JUMPTO(SLJIT_C_NOT_ZERO, label);
+ }
+ set_jumps(nomatch, LABEL());
+ OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset);
+ break;
+
+ case OP_POSQUERY:
+ OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
+ compile_char1_matchingpath(common, type, cc, &nomatch);
+ OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
+ set_jumps(nomatch, LABEL());
+ OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset);
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+
+count_match(common);
+return end;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_fail_accept_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+
+PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
+
+if (*cc == OP_FAIL)
+ {
+ add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+ return cc + 1;
+ }
+
+if (*cc == OP_ASSERT_ACCEPT || common->currententry != NULL)
+ {
+ /* No need to check notempty conditions. */
+ if (common->accept_label == NULL)
+ add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
+ else
+ JUMPTO(SLJIT_JUMP, common->accept_label);
+ return cc + 1;
+ }
+
+if (common->accept_label == NULL)
+ add_jump(compiler, &common->accept, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0)));
+else
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), common->accept_label);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty));
+add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty_atstart));
+if (common->accept_label == NULL)
+ add_jump(compiler, &common->accept, CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+else
+ CMPTO(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0, common->accept_label);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+if (common->accept_label == NULL)
+ add_jump(compiler, &common->accept, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0));
+else
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, common->accept_label);
+add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+return cc + 1;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_close_matchingpath(compiler_common *common, pcre_uchar *cc)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1);
+BOOL optimized_cbracket = common->optimized_cbracket[offset] != 0;
+
+/* Data will be discarded anyway... */
+if (common->currententry != NULL)
+ return cc + 1 + IMM2_SIZE;
+
+if (!optimized_cbracket)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR_PRIV(offset));
+offset <<= 1;
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+if (!optimized_cbracket)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+return cc + 1 + IMM2_SIZE;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_control_verb_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode = *cc;
+pcre_uchar *ccend = cc + 1;
+
+if (opcode == OP_PRUNE_ARG || opcode == OP_SKIP_ARG || opcode == OP_THEN_ARG)
+ ccend += 2 + cc[1];
+
+PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
+
+if (opcode == OP_SKIP)
+ {
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ return ccend;
+ }
+
+if (opcode == OP_PRUNE_ARG || opcode == OP_THEN_ARG)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0);
+ }
+
+return ccend;
+}
+
+static pcre_uchar then_trap_opcode[1] = { OP_THEN_TRAP };
+
+static SLJIT_INLINE void compile_then_trap_matchingpath(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+BOOL needs_control_head;
+int size;
+
+PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc);
+common->then_trap = BACKTRACK_AS(then_trap_backtrack);
+BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode;
+BACKTRACK_AS(then_trap_backtrack)->start = (sljit_sw)(cc - common->start);
+BACKTRACK_AS(then_trap_backtrack)->framesize = get_framesize(common, cc, ccend, FALSE, &needs_control_head);
+
+size = BACKTRACK_AS(then_trap_backtrack)->framesize;
+size = 3 + (size < 0 ? 0 : size);
+
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+allocate_stack(common, size);
+if (size > 3)
+ OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw));
+else
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, STACK_TOP, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 1), SLJIT_IMM, BACKTRACK_AS(then_trap_backtrack)->start);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 2), SLJIT_IMM, type_then_trap);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 3), TMP2, 0);
+
+size = BACKTRACK_AS(then_trap_backtrack)->framesize;
+if (size >= 0)
+ init_frame(common, cc, ccend, size - 1, 0, FALSE);
+}
+
+static void compile_matchingpath(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+BOOL has_then_trap = FALSE;
+then_trap_backtrack *save_then_trap = NULL;
+
+SLJIT_ASSERT(*ccend == OP_END || (*ccend >= OP_ALT && *ccend <= OP_KETRPOS));
+
+if (common->has_then && common->then_offsets[cc - common->start] != 0)
+ {
+ SLJIT_ASSERT(*ccend != OP_END && common->control_head_ptr != 0);
+ has_then_trap = TRUE;
+ save_then_trap = common->then_trap;
+ /* Tail item on backtrack. */
+ compile_then_trap_matchingpath(common, cc, ccend, parent);
+ }
+
+while (cc < ccend)
+ {
+ switch(*cc)
+ {
+ case OP_SOD:
+ case OP_SOM:
+ case OP_NOT_WORD_BOUNDARY:
+ case OP_WORD_BOUNDARY:
+ case OP_NOT_DIGIT:
+ case OP_DIGIT:
+ case OP_NOT_WHITESPACE:
+ case OP_WHITESPACE:
+ case OP_NOT_WORDCHAR:
+ case OP_WORDCHAR:
+ case OP_ANY:
+ case OP_ALLANY:
+ case OP_ANYBYTE:
+ case OP_NOTPROP:
+ case OP_PROP:
+ case OP_ANYNL:
+ case OP_NOT_HSPACE:
+ case OP_HSPACE:
+ case OP_NOT_VSPACE:
+ case OP_VSPACE:
+ case OP_EXTUNI:
+ case OP_EODN:
+ case OP_EOD:
+ case OP_CIRC:
+ case OP_CIRCM:
+ case OP_DOLL:
+ case OP_DOLLM:
+ case OP_NOT:
+ case OP_NOTI:
+ case OP_REVERSE:
+ cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+ break;
+
+ case OP_SET_SOM:
+ PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+ cc++;
+ break;
+
+ case OP_CHAR:
+ case OP_CHARI:
+ if (common->mode == JIT_COMPILE)
+ cc = compile_charn_matchingpath(common, cc, ccend, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+ else
+ cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+ break;
+
+ case OP_STAR:
+ case OP_MINSTAR:
+ case OP_PLUS:
+ case OP_MINPLUS:
+ case OP_QUERY:
+ case OP_MINQUERY:
+ case OP_UPTO:
+ case OP_MINUPTO:
+ case OP_EXACT:
+ case OP_POSSTAR:
+ case OP_POSPLUS:
+ case OP_POSQUERY:
+ case OP_POSUPTO:
+ case OP_STARI:
+ case OP_MINSTARI:
+ case OP_PLUSI:
+ case OP_MINPLUSI:
+ case OP_QUERYI:
+ case OP_MINQUERYI:
+ case OP_UPTOI:
+ case OP_MINUPTOI:
+ case OP_EXACTI:
+ case OP_POSSTARI:
+ case OP_POSPLUSI:
+ case OP_POSQUERYI:
+ case OP_POSUPTOI:
+ case OP_NOTSTAR:
+ case OP_NOTMINSTAR:
+ case OP_NOTPLUS:
+ case OP_NOTMINPLUS:
+ case OP_NOTQUERY:
+ case OP_NOTMINQUERY:
+ case OP_NOTUPTO:
+ case OP_NOTMINUPTO:
+ case OP_NOTEXACT:
+ case OP_NOTPOSSTAR:
+ case OP_NOTPOSPLUS:
+ case OP_NOTPOSQUERY:
+ case OP_NOTPOSUPTO:
+ case OP_NOTSTARI:
+ case OP_NOTMINSTARI:
+ case OP_NOTPLUSI:
+ case OP_NOTMINPLUSI:
+ case OP_NOTQUERYI:
+ case OP_NOTMINQUERYI:
+ case OP_NOTUPTOI:
+ case OP_NOTMINUPTOI:
+ case OP_NOTEXACTI:
+ case OP_NOTPOSSTARI:
+ case OP_NOTPOSPLUSI:
+ case OP_NOTPOSQUERYI:
+ case OP_NOTPOSUPTOI:
+ case OP_TYPESTAR:
+ case OP_TYPEMINSTAR:
+ case OP_TYPEPLUS:
+ case OP_TYPEMINPLUS:
+ case OP_TYPEQUERY:
+ case OP_TYPEMINQUERY:
+ case OP_TYPEUPTO:
+ case OP_TYPEMINUPTO:
+ case OP_TYPEEXACT:
+ case OP_TYPEPOSSTAR:
+ case OP_TYPEPOSPLUS:
+ case OP_TYPEPOSQUERY:
+ case OP_TYPEPOSUPTO:
+ cc = compile_iterator_matchingpath(common, cc, parent);
+ break;
+
+ case OP_CLASS:
+ case OP_NCLASS:
+ if (cc[1 + (32 / sizeof(pcre_uchar))] >= OP_CRSTAR && cc[1 + (32 / sizeof(pcre_uchar))] <= OP_CRMINRANGE)
+ cc = compile_iterator_matchingpath(common, cc, parent);
+ else
+ cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+ break;
+
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ case OP_XCLASS:
+ if (*(cc + GET(cc, 1)) >= OP_CRSTAR && *(cc + GET(cc, 1)) <= OP_CRMINRANGE)
+ cc = compile_iterator_matchingpath(common, cc, parent);
+ else
+ cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+ break;
+#endif
+
+ case OP_REF:
+ case OP_REFI:
+ if (cc[1 + IMM2_SIZE] >= OP_CRSTAR && cc[1 + IMM2_SIZE] <= OP_CRMINRANGE)
+ cc = compile_ref_iterator_matchingpath(common, cc, parent);
+ else
+ cc = compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE);
+ break;
+
+ case OP_RECURSE:
+ cc = compile_recurse_matchingpath(common, cc, parent);
+ break;
+
+ case OP_CALLOUT:
+ cc = compile_callout_matchingpath(common, cc, parent);
+ break;
+
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
+ cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
+ break;
+
+ case OP_BRAMINZERO:
+ PUSH_BACKTRACK_NOVALUE(sizeof(braminzero_backtrack), cc);
+ cc = bracketend(cc + 1);
+ if (*(cc - 1 - LINK_SIZE) != OP_KETRMIN)
+ {
+ allocate_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+ }
+ else
+ {
+ allocate_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), STR_PTR, 0);
+ }
+ BACKTRACK_AS(braminzero_backtrack)->matchingpath = LABEL();
+ if (cc[1] > OP_ASSERTBACK_NOT)
+ count_match(common);
+ break;
+
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRA:
+ case OP_CBRA:
+ case OP_COND:
+ case OP_SBRA:
+ case OP_SCBRA:
+ case OP_SCOND:
+ cc = compile_bracket_matchingpath(common, cc, parent);
+ break;
+
+ case OP_BRAZERO:
+ if (cc[1] > OP_ASSERTBACK_NOT)
+ cc = compile_bracket_matchingpath(common, cc, parent);
+ else
+ {
+ PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
+ cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
+ }
+ break;
+
+ case OP_BRAPOS:
+ case OP_CBRAPOS:
+ case OP_SBRAPOS:
+ case OP_SCBRAPOS:
+ case OP_BRAPOSZERO:
+ cc = compile_bracketpos_matchingpath(common, cc, parent);
+ break;
+
+ case OP_MARK:
+ PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
+ SLJIT_ASSERT(common->mark_ptr != 0);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+ allocate_stack(common, common->has_skip_arg ? 5 : 1);
+ OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0), TMP2, 0);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0);
+ if (common->has_skip_arg)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, STACK_TOP, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, type_mark);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), SLJIT_IMM, (sljit_sw)(cc + 2));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(3), STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+ }
+ cc += 1 + 2 + cc[1];
+ break;
+
+ case OP_PRUNE:
+ case OP_PRUNE_ARG:
+ case OP_SKIP:
+ case OP_SKIP_ARG:
+ case OP_THEN:
+ case OP_THEN_ARG:
+ case OP_COMMIT:
+ cc = compile_control_verb_matchingpath(common, cc, parent);
+ break;
+
+ case OP_FAIL:
+ case OP_ACCEPT:
+ case OP_ASSERT_ACCEPT:
+ cc = compile_fail_accept_matchingpath(common, cc, parent);
+ break;
+
+ case OP_CLOSE:
+ cc = compile_close_matchingpath(common, cc);
+ break;
+
+ case OP_SKIPZERO:
+ cc = bracketend(cc + 1);
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ return;
+ }
+ if (cc == NULL)
+ return;
+ }
+
+if (has_then_trap)
+ {
+ /* Head item on backtrack. */
+ PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc);
+ BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode;
+ BACKTRACK_AS(then_trap_backtrack)->then_trap = common->then_trap;
+ common->then_trap = save_then_trap;
+ }
+SLJIT_ASSERT(cc == ccend);
+}
+
+#undef PUSH_BACKTRACK
+#undef PUSH_BACKTRACK_NOVALUE
+#undef BACKTRACK_AS
+
+#define COMPILE_BACKTRACKINGPATH(current) \
+ do \
+ { \
+ compile_backtrackingpath(common, (current)); \
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+ return; \
+ } \
+ while (0)
+
+#define CURRENT_AS(type) ((type *)current)
+
+static void compile_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar opcode;
+pcre_uchar type;
+int arg1 = -1, arg2 = -1;
+struct sljit_label *label = NULL;
+struct sljit_jump *jump = NULL;
+jump_list *jumplist = NULL;
+int private_data_ptr = PRIVATE_DATA(cc);
+int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_LOCALS_REG);
+int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr;
+int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw);
+
+cc = get_iterator_parameters(common, cc, &opcode, &type, &arg1, &arg2, NULL);
+
+switch(opcode)
+ {
+ case OP_STAR:
+ case OP_PLUS:
+ case OP_UPTO:
+ case OP_CRRANGE:
+ if (type == OP_ANYNL || type == OP_EXTUNI)
+ {
+ SLJIT_ASSERT(private_data_ptr == 0);
+ set_jumps(current->topbacktracks, LABEL());
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath);
+ }
+ else
+ {
+ if (opcode == OP_UPTO)
+ arg2 = 0;
+ if (opcode <= OP_PLUS)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ jump = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, base, offset1);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, base, offset1);
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ jump = CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, SLJIT_IMM, arg2 + 1);
+ OP2(SLJIT_SUB, base, offset1, TMP1, 0, SLJIT_IMM, 1);
+ }
+ skip_char_back(common);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath);
+ if (opcode == OP_CRRANGE)
+ set_jumps(current->topbacktracks, LABEL());
+ JUMPHERE(jump);
+ if (private_data_ptr == 0)
+ free_stack(common, 2);
+ if (opcode == OP_PLUS)
+ set_jumps(current->topbacktracks, LABEL());
+ }
+ break;
+
+ case OP_MINSTAR:
+ case OP_MINPLUS:
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ compile_char1_matchingpath(common, type, cc, &jumplist);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath);
+ set_jumps(jumplist, LABEL());
+ if (private_data_ptr == 0)
+ free_stack(common, 1);
+ if (opcode == OP_MINPLUS)
+ set_jumps(current->topbacktracks, LABEL());
+ break;
+
+ case OP_MINUPTO:
+ case OP_CRMINRANGE:
+ if (opcode == OP_CRMINRANGE)
+ {
+ label = LABEL();
+ set_jumps(current->topbacktracks, label);
+ }
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ compile_char1_matchingpath(common, type, cc, &jumplist);
+
+ OP1(SLJIT_MOV, TMP1, 0, base, offset1);
+ OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
+ OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, base, offset1, TMP1, 0);
+
+ if (opcode == OP_CRMINRANGE)
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg2 + 1, label);
+
+ if (opcode == OP_CRMINRANGE && arg1 == 0)
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath);
+ else
+ CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 2, CURRENT_AS(iterator_backtrack)->matchingpath);
+
+ set_jumps(jumplist, LABEL());
+ if (private_data_ptr == 0)
+ free_stack(common, 2);
+ break;
+
+ case OP_QUERY:
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath);
+ jump = JUMP(SLJIT_JUMP);
+ set_jumps(current->topbacktracks, LABEL());
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath);
+ JUMPHERE(jump);
+ if (private_data_ptr == 0)
+ free_stack(common, 1);
+ break;
+
+ case OP_MINQUERY:
+ OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
+ OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
+ jump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ compile_char1_matchingpath(common, type, cc, &jumplist);
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath);
+ set_jumps(jumplist, LABEL());
+ JUMPHERE(jump);
+ if (private_data_ptr == 0)
+ free_stack(common, 1);
+ break;
+
+ case OP_EXACT:
+ case OP_POSPLUS:
+ set_jumps(current->topbacktracks, LABEL());
+ break;
+
+ case OP_POSSTAR:
+ case OP_POSQUERY:
+ case OP_POSUPTO:
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+}
+
+static SLJIT_INLINE void compile_ref_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar type;
+
+type = cc[1 + IMM2_SIZE];
+if ((type & 0x1) == 0)
+ {
+ set_jumps(current->topbacktracks, LABEL());
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath);
+ return;
+ }
+
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath);
+set_jumps(current->topbacktracks, LABEL());
+free_stack(common, 2);
+}
+
+static SLJIT_INLINE void compile_recurse_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+
+if (CURRENT_AS(recurse_backtrack)->inlined_pattern)
+ compile_backtrackingpath(common, current->top);
+set_jumps(current->topbacktracks, LABEL());
+if (CURRENT_AS(recurse_backtrack)->inlined_pattern)
+ return;
+
+if (common->has_set_som && common->mark_ptr != 0)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ free_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP1, 0);
+ }
+else if (common->has_set_som || common->mark_ptr != 0)
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr, TMP2, 0);
+ }
+}
+
+static void compile_assert_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar bra = OP_BRA;
+struct sljit_jump *brajump = NULL;
+
+SLJIT_ASSERT(*cc != OP_BRAMINZERO);
+if (*cc == OP_BRAZERO)
+ {
+ bra = *cc;
+ cc++;
+ }
+
+if (bra == OP_BRAZERO)
+ {
+ SLJIT_ASSERT(current->topbacktracks == NULL);
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ }
+
+if (CURRENT_AS(assert_backtrack)->framesize < 0)
+ {
+ set_jumps(current->topbacktracks, LABEL());
+
+ if (bra == OP_BRAZERO)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath);
+ free_stack(common, 1);
+ }
+ return;
+ }
+
+if (bra == OP_BRAZERO)
+ {
+ if (*cc == OP_ASSERT_NOT || *cc == OP_ASSERTBACK_NOT)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath);
+ free_stack(common, 1);
+ return;
+ }
+ free_stack(common, 1);
+ brajump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+ }
+
+if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK)
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(assert_backtrack)->private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(assert_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(assert_backtrack)->framesize * sizeof(sljit_sw));
+
+ set_jumps(current->topbacktracks, LABEL());
+ }
+else
+ set_jumps(current->topbacktracks, LABEL());
+
+if (bra == OP_BRAZERO)
+ {
+ /* We know there is enough place on the stack. */
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(assert_backtrack)->matchingpath);
+ JUMPHERE(brajump);
+ }
+}
+
+static void compile_bracket_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+int opcode, stacksize, count;
+int offset = 0;
+int private_data_ptr = CURRENT_AS(bracket_backtrack)->private_data_ptr;
+int repeat_ptr = 0, repeat_type = 0, repeat_count = 0;
+pcre_uchar *cc = current->cc;
+pcre_uchar *ccbegin;
+pcre_uchar *ccprev;
+jump_list *jumplist = NULL;
+jump_list *jumplistitem = NULL;
+pcre_uchar bra = OP_BRA;
+pcre_uchar ket;
+assert_backtrack *assert;
+BOOL has_alternatives;
+BOOL needs_control_head = FALSE;
+struct sljit_jump *brazero = NULL;
+struct sljit_jump *once = NULL;
+struct sljit_jump *cond = NULL;
+struct sljit_label *rmin_label = NULL;
+struct sljit_label *exact_label = NULL;
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+ {
+ bra = *cc;
+ cc++;
+ }
+
+opcode = *cc;
+ccbegin = bracketend(cc) - 1 - LINK_SIZE;
+ket = *ccbegin;
+if (ket == OP_KET && PRIVATE_DATA(ccbegin) != 0)
+ {
+ repeat_ptr = PRIVATE_DATA(ccbegin);
+ repeat_type = PRIVATE_DATA(ccbegin + 2);
+ repeat_count = PRIVATE_DATA(ccbegin + 3);
+ SLJIT_ASSERT(repeat_type != 0 && repeat_count != 0);
+ if (repeat_type == OP_UPTO)
+ ket = OP_KETRMAX;
+ if (repeat_type == OP_MINUPTO)
+ ket = OP_KETRMIN;
+ }
+ccbegin = cc;
+cc += GET(cc, 1);
+has_alternatives = *cc == OP_ALT;
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+ has_alternatives = (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT) || CURRENT_AS(bracket_backtrack)->u.condfailed != NULL;
+if (opcode == OP_CBRA || opcode == OP_SCBRA)
+ offset = (GET2(ccbegin, 1 + LINK_SIZE)) << 1;
+if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
+ opcode = OP_SCOND;
+if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
+ opcode = OP_ONCE;
+
+/* Decoding the needs_control_head in framesize. */
+if (opcode == OP_ONCE)
+ {
+ needs_control_head = (CURRENT_AS(bracket_backtrack)->u.framesize & 0x1) != 0;
+ CURRENT_AS(bracket_backtrack)->u.framesize >>= 1;
+ }
+
+if (ket != OP_KET && repeat_type != 0)
+ {
+ /* TMP1 is used in OP_KETRMIN below. */
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ if (repeat_type == OP_UPTO)
+ OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, TMP1, 0, SLJIT_IMM, 1);
+ else
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, TMP1, 0);
+ }
+
+if (ket == OP_KETRMAX)
+ {
+ if (bra == OP_BRAZERO)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ brazero = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0);
+ }
+ }
+else if (ket == OP_KETRMIN)
+ {
+ if (bra != OP_BRAMINZERO)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ if (repeat_type != 0)
+ {
+ /* TMP1 was set a few lines above. */
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+ /* Drop STR_PTR for non-greedy plus quantifier. */
+ if (opcode != OP_ONCE)
+ free_stack(common, 1);
+ }
+ else if (opcode >= OP_SBRA || opcode == OP_ONCE)
+ {
+ /* Checking zero-length iteration. */
+ if (opcode != OP_ONCE || CURRENT_AS(bracket_backtrack)->u.framesize < 0)
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (CURRENT_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw), CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+ }
+ /* Drop STR_PTR for non-greedy plus quantifier. */
+ if (opcode != OP_ONCE)
+ free_stack(common, 1);
+ }
+ else
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+ }
+ rmin_label = LABEL();
+ if (repeat_type != 0)
+ OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, 1);
+ }
+else if (bra == OP_BRAZERO)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ brazero = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
+ }
+else if (repeat_type == OP_EXACT)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, 1);
+ exact_label = LABEL();
+ }
+
+if (offset != 0)
+ {
+ if (common->capture_last_ptr != 0)
+ {
+ SLJIT_ASSERT(common->optimized_cbracket[offset >> 1] == 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, TMP1, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2));
+ free_stack(common, 3);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP2, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP1, 0);
+ }
+ else if (common->optimized_cbracket[offset >> 1] == 0)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ free_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP2, 0);
+ }
+ }
+
+if (SLJIT_UNLIKELY(opcode == OP_ONCE))
+ {
+ if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ }
+ once = JUMP(SLJIT_JUMP);
+ }
+else if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+ {
+ if (has_alternatives)
+ {
+ /* Always exactly one alternative. */
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+
+ jumplistitem = sljit_alloc_memory(compiler, sizeof(jump_list));
+ if (SLJIT_UNLIKELY(!jumplistitem))
+ return;
+ jumplist = jumplistitem;
+ jumplistitem->next = NULL;
+ jumplistitem->jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 1);
+ }
+ }
+else if (*cc == OP_ALT)
+ {
+ /* Build a jump list. Get the last successfully matched branch index. */
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ count = 1;
+ do
+ {
+ /* Append as the last item. */
+ if (jumplist != NULL)
+ {
+ jumplistitem->next = sljit_alloc_memory(compiler, sizeof(jump_list));
+ jumplistitem = jumplistitem->next;
+ }
+ else
+ {
+ jumplistitem = sljit_alloc_memory(compiler, sizeof(jump_list));
+ jumplist = jumplistitem;
+ }
+
+ if (SLJIT_UNLIKELY(!jumplistitem))
+ return;
+
+ jumplistitem->next = NULL;
+ jumplistitem->jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, count++);
+ cc += GET(cc, 1);
+ }
+ while (*cc == OP_ALT);
+
+ cc = ccbegin + GET(ccbegin, 1);
+ }
+
+COMPILE_BACKTRACKINGPATH(current->top);
+if (current->topbacktracks)
+ set_jumps(current->topbacktracks, LABEL());
+
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+ {
+ /* Conditional block always has at most one alternative. */
+ if (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT)
+ {
+ SLJIT_ASSERT(has_alternatives);
+ assert = CURRENT_AS(bracket_backtrack)->u.assert;
+ if (assert->framesize >= 0 && (ccbegin[1 + LINK_SIZE] == OP_ASSERT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK))
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
+ }
+ cond = JUMP(SLJIT_JUMP);
+ set_jumps(CURRENT_AS(bracket_backtrack)->u.assert->condfailed, LABEL());
+ }
+ else if (CURRENT_AS(bracket_backtrack)->u.condfailed != NULL)
+ {
+ SLJIT_ASSERT(has_alternatives);
+ cond = JUMP(SLJIT_JUMP);
+ set_jumps(CURRENT_AS(bracket_backtrack)->u.condfailed, LABEL());
+ }
+ else
+ SLJIT_ASSERT(!has_alternatives);
+ }
+
+if (has_alternatives)
+ {
+ count = 1;
+ do
+ {
+ current->top = NULL;
+ current->topbacktracks = NULL;
+ current->nextbacktracks = NULL;
+ /* Conditional blocks always have an additional alternative, even if it is empty. */
+ if (*cc == OP_ALT)
+ {
+ ccprev = cc + 1 + LINK_SIZE;
+ cc += GET(cc, 1);
+ if (opcode != OP_COND && opcode != OP_SCOND)
+ {
+ if (opcode != OP_ONCE)
+ {
+ if (private_data_ptr != 0)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr);
+ else
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ }
+ else
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(needs_control_head ? 1 : 0));
+ }
+ compile_matchingpath(common, ccprev, cc, current);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return;
+ }
+
+ /* Instructions after the current alternative is successfully matched. */
+ /* There is a similar code in compile_bracket_matchingpath. */
+ if (opcode == OP_ONCE)
+ match_once_common(common, ket, CURRENT_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head);
+
+ stacksize = 0;
+ if (repeat_type == OP_MINUPTO)
+ {
+ /* We need to preserve the counter. TMP2 will be used below. */
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr);
+ stacksize++;
+ }
+ if (ket != OP_KET || bra != OP_BRA)
+ stacksize++;
+ if (offset != 0)
+ {
+ if (common->capture_last_ptr != 0)
+ stacksize++;
+ if (common->optimized_cbracket[offset >> 1] == 0)
+ stacksize += 2;
+ }
+ if (opcode != OP_ONCE)
+ stacksize++;
+
+ if (stacksize > 0)
+ allocate_stack(common, stacksize);
+
+ stacksize = 0;
+ if (repeat_type == OP_MINUPTO)
+ {
+ /* TMP2 was set above. */
+ OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1);
+ stacksize++;
+ }
+
+ if (ket != OP_KET || bra != OP_BRA)
+ {
+ if (ket != OP_KET)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+ else
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+ stacksize++;
+ }
+
+ if (offset != 0)
+ stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
+
+ if (opcode != OP_ONCE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, count++);
+
+ if (offset != 0 && ket == OP_KETRMAX && common->optimized_cbracket[offset >> 1] != 0)
+ {
+ /* If ket is not OP_KETRMAX, this code path is executed after the jump to alternative_matchingpath. */
+ SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+ }
+
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->alternative_matchingpath);
+
+ if (opcode != OP_ONCE)
+ {
+ SLJIT_ASSERT(jumplist);
+ JUMPHERE(jumplist->jump);
+ jumplist = jumplist->next;
+ }
+
+ COMPILE_BACKTRACKINGPATH(current->top);
+ if (current->topbacktracks)
+ set_jumps(current->topbacktracks, LABEL());
+ SLJIT_ASSERT(!current->nextbacktracks);
+ }
+ while (*cc == OP_ALT);
+ SLJIT_ASSERT(!jumplist);
+
+ if (cond != NULL)
+ {
+ SLJIT_ASSERT(opcode == OP_COND || opcode == OP_SCOND);
+ assert = CURRENT_AS(bracket_backtrack)->u.assert;
+ if ((ccbegin[1 + LINK_SIZE] == OP_ASSERT_NOT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK_NOT) && assert->framesize >= 0)
+ {
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->private_data_ptr);
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
+ }
+ JUMPHERE(cond);
+ }
+
+ /* Free the STR_PTR. */
+ if (private_data_ptr == 0)
+ free_stack(common, 1);
+ }
+
+if (offset != 0)
+ {
+ /* Using both tmp register is better for instruction scheduling. */
+ if (common->optimized_cbracket[offset >> 1] != 0)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ free_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP2, 0);
+ }
+ else
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP1, 0);
+ }
+ }
+else if (opcode == OP_SBRA || opcode == OP_SCOND)
+ {
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ }
+else if (opcode == OP_ONCE)
+ {
+ cc = ccbegin + GET(ccbegin, 1);
+ stacksize = needs_control_head ? 1 : 0;
+
+ if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+ {
+ /* Reset head and drop saved frame. */
+ stacksize += CURRENT_AS(bracket_backtrack)->u.framesize + ((ket != OP_KET || *cc == OP_ALT) ? 2 : 1);
+ }
+ else if (ket == OP_KETRMAX || (*cc == OP_ALT && ket != OP_KETRMIN))
+ {
+ /* The STR_PTR must be released. */
+ stacksize++;
+ }
+ free_stack(common, stacksize);
+
+ JUMPHERE(once);
+ /* Restore previous private_data_ptr */
+ if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracket_backtrack)->u.framesize * sizeof(sljit_sw));
+ else if (ket == OP_KETRMIN)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ /* See the comment below. */
+ free_stack(common, 2);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), private_data_ptr, TMP1, 0);
+ }
+ }
+
+if (repeat_type == OP_EXACT)
+ {
+ OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, SLJIT_IMM, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), repeat_ptr, TMP1, 0);
+ CMPTO(SLJIT_C_LESS_EQUAL, TMP1, 0, SLJIT_IMM, repeat_count, exact_label);
+ }
+else if (ket == OP_KETRMAX)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ if (bra != OP_BRAZERO)
+ free_stack(common, 1);
+
+ CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+ if (bra == OP_BRAZERO)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath);
+ JUMPHERE(brazero);
+ free_stack(common, 1);
+ }
+ }
+else if (ket == OP_KETRMIN)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+ /* OP_ONCE removes everything in case of a backtrack, so we don't
+ need to explicitly release the STR_PTR. The extra release would
+ affect badly the free_stack(2) above. */
+ if (opcode != OP_ONCE)
+ free_stack(common, 1);
+ CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, rmin_label);
+ if (opcode == OP_ONCE)
+ free_stack(common, bra == OP_BRAMINZERO ? 2 : 1);
+ else if (bra == OP_BRAMINZERO)
+ free_stack(common, 1);
+ }
+else if (bra == OP_BRAZERO)
+ {
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath);
+ JUMPHERE(brazero);
+ }
+}
+
+static SLJIT_INLINE void compile_bracketpos_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+int offset;
+struct sljit_jump *jump;
+
+if (CURRENT_AS(bracketpos_backtrack)->framesize < 0)
+ {
+ if (*current->cc == OP_CBRAPOS || *current->cc == OP_SCBRAPOS)
+ {
+ offset = (GET2(current->cc, 1 + LINK_SIZE)) << 1;
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+ if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP2, 0);
+ if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, TMP1, 0);
+ }
+ set_jumps(current->topbacktracks, LABEL());
+ free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
+ return;
+ }
+
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(bracketpos_backtrack)->private_data_ptr);
+add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+
+if (current->topbacktracks)
+ {
+ jump = JUMP(SLJIT_JUMP);
+ set_jumps(current->topbacktracks, LABEL());
+ /* Drop the stack frame. */
+ free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
+ JUMPHERE(jump);
+ }
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(bracketpos_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracketpos_backtrack)->framesize * sizeof(sljit_sw));
+}
+
+static SLJIT_INLINE void compile_braminzero_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+assert_backtrack backtrack;
+
+current->top = NULL;
+current->topbacktracks = NULL;
+current->nextbacktracks = NULL;
+if (current->cc[1] > OP_ASSERTBACK_NOT)
+ {
+ /* Manual call of compile_bracket_matchingpath and compile_bracket_backtrackingpath. */
+ compile_bracket_matchingpath(common, current->cc, current);
+ compile_bracket_backtrackingpath(common, current->top);
+ }
+else
+ {
+ memset(&backtrack, 0, sizeof(backtrack));
+ backtrack.common.cc = current->cc;
+ backtrack.matchingpath = CURRENT_AS(braminzero_backtrack)->matchingpath;
+ /* Manual call of compile_assert_matchingpath. */
+ compile_assert_matchingpath(common, current->cc, &backtrack, FALSE);
+ }
+SLJIT_ASSERT(!current->nextbacktracks && !current->topbacktracks);
+}
+
+static SLJIT_INLINE void compile_control_verb_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar opcode = *current->cc;
+struct sljit_label *loop;
+struct sljit_jump *jump;
+
+if (opcode == OP_THEN || opcode == OP_THEN_ARG)
+ {
+ if (common->then_trap != NULL)
+ {
+ SLJIT_ASSERT(common->control_head_ptr != 0);
+
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, type_then_trap);
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, common->then_trap->start);
+ jump = JUMP(SLJIT_JUMP);
+
+ loop = LABEL();
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), -(int)sizeof(sljit_sw));
+ JUMPHERE(jump);
+ CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(2 * sizeof(sljit_sw)), TMP1, 0, loop);
+ CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(3 * sizeof(sljit_sw)), TMP2, 0, loop);
+ add_jump(compiler, &common->then_trap->quit, JUMP(SLJIT_JUMP));
+ return;
+ }
+ else if (common->positive_assert)
+ {
+ add_jump(compiler, &common->positive_assert_quit, JUMP(SLJIT_JUMP));
+ return;
+ }
+ }
+
+if (common->local_exit)
+ {
+ if (common->quit_label == NULL)
+ add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
+ else
+ JUMPTO(SLJIT_JUMP, common->quit_label);
+ return;
+ }
+
+if (opcode == OP_SKIP_ARG)
+ {
+ SLJIT_ASSERT(common->control_head_ptr != 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STACK_TOP, 0);
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, (sljit_sw)(current->cc + 2));
+ sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_search_mark));
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+
+ OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0);
+ add_jump(compiler, &common->reset_match, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, -1));
+ return;
+ }
+
+if (opcode == OP_SKIP)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+else
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_IMM, 0);
+add_jump(compiler, &common->reset_match, JUMP(SLJIT_JUMP));
+}
+
+static SLJIT_INLINE void compile_then_trap_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+int size;
+
+if (CURRENT_AS(then_trap_backtrack)->then_trap)
+ {
+ common->then_trap = CURRENT_AS(then_trap_backtrack)->then_trap;
+ return;
+ }
+
+size = CURRENT_AS(then_trap_backtrack)->framesize;
+size = 3 + (size < 0 ? 0 : size);
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(size - 3));
+free_stack(common, size);
+jump = JUMP(SLJIT_JUMP);
+
+set_jumps(CURRENT_AS(then_trap_backtrack)->quit, LABEL());
+/* STACK_TOP is set by THEN. */
+if (CURRENT_AS(then_trap_backtrack)->framesize >= 0)
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+free_stack(common, 3);
+
+JUMPHERE(jump);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, TMP1, 0);
+}
+
+static void compile_backtrackingpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+then_trap_backtrack *save_then_trap = common->then_trap;
+
+while (current)
+ {
+ if (current->nextbacktracks != NULL)
+ set_jumps(current->nextbacktracks, LABEL());
+ switch(*current->cc)
+ {
+ case OP_SET_SOM:
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), TMP1, 0);
+ break;
+
+ case OP_STAR:
+ case OP_MINSTAR:
+ case OP_PLUS:
+ case OP_MINPLUS:
+ case OP_QUERY:
+ case OP_MINQUERY:
+ case OP_UPTO:
+ case OP_MINUPTO:
+ case OP_EXACT:
+ case OP_POSSTAR:
+ case OP_POSPLUS:
+ case OP_POSQUERY:
+ case OP_POSUPTO:
+ case OP_STARI:
+ case OP_MINSTARI:
+ case OP_PLUSI:
+ case OP_MINPLUSI:
+ case OP_QUERYI:
+ case OP_MINQUERYI:
+ case OP_UPTOI:
+ case OP_MINUPTOI:
+ case OP_EXACTI:
+ case OP_POSSTARI:
+ case OP_POSPLUSI:
+ case OP_POSQUERYI:
+ case OP_POSUPTOI:
+ case OP_NOTSTAR:
+ case OP_NOTMINSTAR:
+ case OP_NOTPLUS:
+ case OP_NOTMINPLUS:
+ case OP_NOTQUERY:
+ case OP_NOTMINQUERY:
+ case OP_NOTUPTO:
+ case OP_NOTMINUPTO:
+ case OP_NOTEXACT:
+ case OP_NOTPOSSTAR:
+ case OP_NOTPOSPLUS:
+ case OP_NOTPOSQUERY:
+ case OP_NOTPOSUPTO:
+ case OP_NOTSTARI:
+ case OP_NOTMINSTARI:
+ case OP_NOTPLUSI:
+ case OP_NOTMINPLUSI:
+ case OP_NOTQUERYI:
+ case OP_NOTMINQUERYI:
+ case OP_NOTUPTOI:
+ case OP_NOTMINUPTOI:
+ case OP_NOTEXACTI:
+ case OP_NOTPOSSTARI:
+ case OP_NOTPOSPLUSI:
+ case OP_NOTPOSQUERYI:
+ case OP_NOTPOSUPTOI:
+ case OP_TYPESTAR:
+ case OP_TYPEMINSTAR:
+ case OP_TYPEPLUS:
+ case OP_TYPEMINPLUS:
+ case OP_TYPEQUERY:
+ case OP_TYPEMINQUERY:
+ case OP_TYPEUPTO:
+ case OP_TYPEMINUPTO:
+ case OP_TYPEEXACT:
+ case OP_TYPEPOSSTAR:
+ case OP_TYPEPOSPLUS:
+ case OP_TYPEPOSQUERY:
+ case OP_TYPEPOSUPTO:
+ case OP_CLASS:
+ case OP_NCLASS:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+ case OP_XCLASS:
+#endif
+ compile_iterator_backtrackingpath(common, current);
+ break;
+
+ case OP_REF:
+ case OP_REFI:
+ compile_ref_iterator_backtrackingpath(common, current);
+ break;
+
+ case OP_RECURSE:
+ compile_recurse_backtrackingpath(common, current);
+ break;
+
+ case OP_ASSERT:
+ case OP_ASSERT_NOT:
+ case OP_ASSERTBACK:
+ case OP_ASSERTBACK_NOT:
+ compile_assert_backtrackingpath(common, current);
+ break;
+
+ case OP_ONCE:
+ case OP_ONCE_NC:
+ case OP_BRA:
+ case OP_CBRA:
+ case OP_COND:
+ case OP_SBRA:
+ case OP_SCBRA:
+ case OP_SCOND:
+ compile_bracket_backtrackingpath(common, current);
+ break;
+
+ case OP_BRAZERO:
+ if (current->cc[1] > OP_ASSERTBACK_NOT)
+ compile_bracket_backtrackingpath(common, current);
+ else
+ compile_assert_backtrackingpath(common, current);
+ break;
+
+ case OP_BRAPOS:
+ case OP_CBRAPOS:
+ case OP_SBRAPOS:
+ case OP_SCBRAPOS:
+ case OP_BRAPOSZERO:
+ compile_bracketpos_backtrackingpath(common, current);
+ break;
+
+ case OP_BRAMINZERO:
+ compile_braminzero_backtrackingpath(common, current);
+ break;
+
+ case OP_MARK:
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0));
+ if (common->has_skip_arg)
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+ free_stack(common, common->has_skip_arg ? 5 : 1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP1, 0);
+ if (common->has_skip_arg)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, TMP2, 0);
+ break;
+
+ case OP_THEN:
+ case OP_THEN_ARG:
+ case OP_PRUNE:
+ case OP_PRUNE_ARG:
+ case OP_SKIP:
+ case OP_SKIP_ARG:
+ compile_control_verb_backtrackingpath(common, current);
+ break;
+
+ case OP_COMMIT:
+ if (!common->local_exit)
+ OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_NOMATCH);
+ if (common->quit_label == NULL)
+ add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
+ else
+ JUMPTO(SLJIT_JUMP, common->quit_label);
+ break;
+
+ case OP_CALLOUT:
+ case OP_FAIL:
+ case OP_ACCEPT:
+ case OP_ASSERT_ACCEPT:
+ set_jumps(current->topbacktracks, LABEL());
+ break;
+
+ case OP_THEN_TRAP:
+ /* A virtual opcode for then traps. */
+ compile_then_trap_backtrackingpath(common, current);
+ break;
+
+ default:
+ SLJIT_ASSERT_STOP();
+ break;
+ }
+ current = current->prev;
+ }
+common->then_trap = save_then_trap;
+}
+
+static SLJIT_INLINE void compile_recurse(compiler_common *common)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = common->start + common->currententry->start;
+pcre_uchar *ccbegin = cc + 1 + LINK_SIZE + (*cc == OP_BRA ? 0 : IMM2_SIZE);
+pcre_uchar *ccend = bracketend(cc);
+BOOL needs_control_head;
+int framesize = get_framesize(common, cc, NULL, TRUE, &needs_control_head);
+int private_data_size = get_private_data_copy_length(common, ccbegin, ccend, needs_control_head);
+int alternativesize;
+BOOL needs_frame;
+backtrack_common altbacktrack;
+struct sljit_jump *jump;
+
+/* Recurse captures then. */
+common->then_trap = NULL;
+
+SLJIT_ASSERT(*cc == OP_BRA || *cc == OP_CBRA || *cc == OP_CBRAPOS || *cc == OP_SCBRA || *cc == OP_SCBRAPOS);
+needs_frame = framesize >= 0;
+if (!needs_frame)
+ framesize = 0;
+alternativesize = *(cc + GET(cc, 1)) == OP_ALT ? 1 : 0;
+
+SLJIT_ASSERT(common->currententry->entry == NULL && common->recursive_head_ptr != 0);
+common->currententry->entry = LABEL();
+set_jumps(common->currententry->calls, common->currententry->entry);
+
+sljit_emit_fast_enter(compiler, TMP2, 0);
+allocate_stack(common, private_data_size + framesize + alternativesize);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(private_data_size + framesize + alternativesize - 1), TMP2, 0);
+copy_private_data(common, ccbegin, ccend, TRUE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
+if (needs_control_head)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_IMM, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head_ptr, STACK_TOP, 0);
+if (needs_frame)
+ init_frame(common, cc, NULL, framesize + alternativesize - 1, alternativesize, TRUE);
+
+if (alternativesize > 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+
+memset(&altbacktrack, 0, sizeof(backtrack_common));
+common->quit_label = NULL;
+common->accept_label = NULL;
+common->quit = NULL;
+common->accept = NULL;
+altbacktrack.cc = ccbegin;
+cc += GET(cc, 1);
+while (1)
+ {
+ altbacktrack.top = NULL;
+ altbacktrack.topbacktracks = NULL;
+
+ if (altbacktrack.cc != ccbegin)
+ OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+ compile_matchingpath(common, altbacktrack.cc, cc, &altbacktrack);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return;
+
+ add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
+
+ compile_backtrackingpath(common, altbacktrack.top);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ return;
+ set_jumps(altbacktrack.topbacktracks, LABEL());
+
+ if (*cc != OP_ALT)
+ break;
+
+ altbacktrack.cc = cc + 1 + LINK_SIZE;
+ cc += GET(cc, 1);
+ }
+
+/* None of them matched. */
+OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
+jump = JUMP(SLJIT_JUMP);
+
+if (common->quit != NULL)
+ {
+ set_jumps(common->quit, LABEL());
+ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head_ptr);
+ if (needs_frame)
+ {
+ OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+ }
+ OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
+ common->quit = NULL;
+ add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
+ }
+
+set_jumps(common->accept, LABEL());
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head_ptr);
+if (needs_frame)
+ {
+ OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+ add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+ OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+ }
+OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 1);
+
+JUMPHERE(jump);
+if (common->quit != NULL)
+ set_jumps(common->quit, LABEL());
+copy_private_data(common, ccbegin, ccend, FALSE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
+free_stack(common, private_data_size + framesize + alternativesize);
+if (needs_control_head)
+ {
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 2 * sizeof(sljit_sw));
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head_ptr, TMP1, 0);
+ OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, TMP2, 0);
+ }
+else
+ {
+ OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
+ OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head_ptr, TMP2, 0);
+ }
+sljit_emit_fast_return(compiler, SLJIT_MEM1(STACK_TOP), 0);
+}
+
+#undef COMPILE_BACKTRACKINGPATH
+#undef CURRENT_AS
+
+void
+PRIV(jit_compile)(const REAL_PCRE *re, PUBL(extra) *extra, int mode)
+{
+struct sljit_compiler *compiler;
+backtrack_common rootbacktrack;
+compiler_common common_data;
+compiler_common *common = &common_data;
+const pcre_uint8 *tables = re->tables;
+pcre_study_data *study;
+int private_data_size;
+pcre_uchar *ccend;
+executable_functions *functions;
+void *executable_func;
+sljit_uw executable_size;
+struct sljit_label *mainloop_label = NULL;
+struct sljit_label *continue_match_label;
+struct sljit_label *empty_match_found_label;
+struct sljit_label *empty_match_backtrack_label;
+struct sljit_label *reset_match_label;
+struct sljit_jump *jump;
+struct sljit_jump *minlength_check_failed = NULL;
+struct sljit_jump *reqbyte_notfound = NULL;
+struct sljit_jump *empty_match;
+struct sljit_label *quit_label;
+
+SLJIT_ASSERT((extra->flags & PCRE_EXTRA_STUDY_DATA) != 0);
+study = extra->study_data;
+
+if (!tables)
+ tables = PRIV(default_tables);
+
+memset(&rootbacktrack, 0, sizeof(backtrack_common));
+memset(common, 0, sizeof(compiler_common));
+rootbacktrack.cc = (pcre_uchar *)re + re->name_table_offset + re->name_count * re->name_entry_size;
+
+common->start = rootbacktrack.cc;
+common->fcc = tables + fcc_offset;
+common->lcc = (sljit_sw)(tables + lcc_offset);
+common->mode = mode;
+common->nltype = NLTYPE_FIXED;
+switch(re->options & PCRE_NEWLINE_BITS)
+ {
+ case 0:
+ /* Compile-time default */
+ switch(NEWLINE)
+ {
+ case -1: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break;
+ case -2: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break;
+ default: common->newline = NEWLINE; break;
+ }
+ break;
+ case PCRE_NEWLINE_CR: common->newline = CHAR_CR; break;
+ case PCRE_NEWLINE_LF: common->newline = CHAR_NL; break;
+ case PCRE_NEWLINE_CR+
+ PCRE_NEWLINE_LF: common->newline = (CHAR_CR << 8) | CHAR_NL; break;
+ case PCRE_NEWLINE_ANY: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break;
+ case PCRE_NEWLINE_ANYCRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break;
+ default: return;
+ }
+if ((re->options & PCRE_BSR_ANYCRLF) != 0)
+ common->bsr_nltype = NLTYPE_ANYCRLF;
+else if ((re->options & PCRE_BSR_UNICODE) != 0)
+ common->bsr_nltype = NLTYPE_ANY;
+else
+ {
+#ifdef BSR_ANYCRLF
+ common->bsr_nltype = NLTYPE_ANYCRLF;
+#else
+ common->bsr_nltype = NLTYPE_ANY;
+#endif
+ }
+common->endonly = (re->options & PCRE_DOLLAR_ENDONLY) != 0;
+common->ctypes = (sljit_sw)(tables + ctypes_offset);
+common->digits[0] = -2;
+common->name_table = (sljit_sw)((pcre_uchar *)re + re->name_table_offset);
+common->name_count = re->name_count;
+common->name_entry_size = re->name_entry_size;
+common->jscript_compat = (re->options & PCRE_JAVASCRIPT_COMPAT) != 0;
+#ifdef SUPPORT_UTF
+/* PCRE_UTF[16|32] have the same value as PCRE_UTF8. */
+common->utf = (re->options & PCRE_UTF8) != 0;
+#ifdef SUPPORT_UCP
+common->use_ucp = (re->options & PCRE_UCP) != 0;
+#endif
+#endif /* SUPPORT_UTF */
+ccend = bracketend(rootbacktrack.cc);
+
+/* Calculate the local space size on the stack. */
+common->ovector_start = LIMIT_MATCH + sizeof(sljit_sw);
+common->optimized_cbracket = (pcre_uint8 *)SLJIT_MALLOC(re->top_bracket + 1);
+if (!common->optimized_cbracket)
+ return;
+#if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 1
+memset(common->optimized_cbracket, 0, re->top_bracket + 1);
+#else
+memset(common->optimized_cbracket, 1, re->top_bracket + 1);
+#endif
+
+SLJIT_ASSERT(*rootbacktrack.cc == OP_BRA && ccend[-(1 + LINK_SIZE)] == OP_KET);
+#if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 2
+common->capture_last_ptr = common->ovector_start;
+common->ovector_start += sizeof(sljit_sw);
+#endif
+if (!check_opcode_types(common, rootbacktrack.cc, ccend))
+ {
+ SLJIT_FREE(common->optimized_cbracket);
+ return;
+ }
+
+/* Checking flags and updating ovector_start. */
+if (mode == JIT_COMPILE && (re->flags & PCRE_REQCHSET) != 0 && (re->options & PCRE_NO_START_OPTIMIZE) == 0)
+ {
+ common->req_char_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+if (mode != JIT_COMPILE)
+ {
+ common->start_used_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ if (mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ common->hit_start = common->ovector_start;
+ common->ovector_start += 2 * sizeof(sljit_sw);
+ }
+ else
+ {
+ SLJIT_ASSERT(mode == JIT_PARTIAL_HARD_COMPILE);
+ common->needs_start_ptr = TRUE;
+ }
+ }
+if ((re->options & PCRE_FIRSTLINE) != 0)
+ {
+ common->first_line_end = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+#if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD
+common->control_head_ptr = 1;
+#endif
+if (common->control_head_ptr != 0)
+ {
+ common->control_head_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+if (common->needs_start_ptr && common->has_set_som)
+ {
+ /* Saving the real start pointer is necessary. */
+ common->start_ptr = common->ovector_start;
+ common->ovector_start += sizeof(sljit_sw);
+ }
+else
+ common->needs_start_ptr = FALSE;
+
+/* Aligning ovector to even number of sljit words. */
+if ((common->ovector_start & sizeof(sljit_sw)) != 0)
+ common->ovector_start += sizeof(sljit_sw);
+
+if (common->start_ptr == 0)
+ common->start_ptr = OVECTOR(0);
+
+/* Capturing brackets cannot be optimized if callouts are allowed. */
+if (common->capture_last_ptr != 0)
+ memset(common->optimized_cbracket, 0, re->top_bracket + 1);
+
+SLJIT_ASSERT(!(common->req_char_ptr != 0 && common->start_used_ptr != 0));
+common->cbra_ptr = OVECTOR_START + (re->top_bracket + 1) * 2 * sizeof(sljit_sw);
+
+common->private_data_ptrs = (int *)SLJIT_MALLOC((ccend - rootbacktrack.cc) * sizeof(sljit_si));
+if (!common->private_data_ptrs)
+ {
+ SLJIT_FREE(common->optimized_cbracket);
+ return;
+ }
+memset(common->private_data_ptrs, 0, (ccend - rootbacktrack.cc) * sizeof(int));
+
+private_data_size = common->cbra_ptr + (re->top_bracket + 1) * sizeof(sljit_sw);
+set_private_data_ptrs(common, &private_data_size, ccend);
+if (private_data_size > SLJIT_MAX_LOCAL_SIZE)
+ {
+ SLJIT_FREE(common->private_data_ptrs);
+ SLJIT_FREE(common->optimized_cbracket);
+ return;
+ }
+
+if (common->has_then)
+ {
+ common->then_offsets = (pcre_uint8 *)SLJIT_MALLOC(ccend - rootbacktrack.cc);
+ if (!common->then_offsets)
+ {
+ SLJIT_FREE(common->optimized_cbracket);
+ SLJIT_FREE(common->private_data_ptrs);
+ return;
+ }
+ memset(common->then_offsets, 0, ccend - rootbacktrack.cc);
+ set_then_offsets(common, rootbacktrack.cc, NULL);
+ }
+
+compiler = sljit_create_compiler();
+if (!compiler)
+ {
+ SLJIT_FREE(common->optimized_cbracket);
+ SLJIT_FREE(common->private_data_ptrs);
+ if (common->has_then)
+ SLJIT_FREE(common->then_offsets);
+ return;
+ }
+common->compiler = compiler;
+
+/* Main pcre_jit_exec entry. */
+sljit_emit_enter(compiler, 1, 5, 5, private_data_size);
+
+/* Register init. */
+reset_ovector(common, (re->top_bracket + 1) * 2);
+if (common->req_char_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr, SLJIT_SCRATCH_REG1, 0);
+
+OP1(SLJIT_MOV, ARGUMENTS, 0, SLJIT_SAVED_REG1, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_SAVED_REG1, 0);
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, end));
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV_UI, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, limit_match));
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, base));
+OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, limit));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LIMIT_MATCH, TMP1, 0);
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+if (common->mark_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, SLJIT_IMM, 0);
+if (common->control_head_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->control_head_ptr, SLJIT_IMM, 0);
+
+/* Main part of the matching */
+if ((re->options & PCRE_ANCHORED) == 0)
+ {
+ mainloop_label = mainloop_entry(common, (re->flags & PCRE_HASCRORLF) != 0, (re->options & PCRE_FIRSTLINE) != 0);
+ continue_match_label = LABEL();
+ /* Forward search if possible. */
+ if ((re->options & PCRE_NO_START_OPTIMIZE) == 0)
+ {
+ if (mode == JIT_COMPILE && fast_forward_first_n_chars(common, (re->options & PCRE_FIRSTLINE) != 0))
+ { /* Do nothing */ }
+ else if ((re->flags & PCRE_FIRSTSET) != 0)
+ fast_forward_first_char(common, (pcre_uchar)re->first_char, (re->flags & PCRE_FCH_CASELESS) != 0, (re->options & PCRE_FIRSTLINE) != 0);
+ else if ((re->flags & PCRE_STARTLINE) != 0)
+ fast_forward_newline(common, (re->options & PCRE_FIRSTLINE) != 0);
+ else if ((re->flags & PCRE_STARTLINE) == 0 && study != NULL && (study->flags & PCRE_STUDY_MAPPED) != 0)
+ fast_forward_start_bits(common, (sljit_uw)study->start_bits, (re->options & PCRE_FIRSTLINE) != 0);
+ }
+ }
+else
+ continue_match_label = LABEL();
+
+if (mode == JIT_COMPILE && study->minlength > 0 && (re->options & PCRE_NO_START_OPTIMIZE) == 0)
+ {
+ OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_NOMATCH);
+ OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(study->minlength));
+ minlength_check_failed = CMP(SLJIT_C_GREATER, TMP2, 0, STR_END, 0);
+ }
+if (common->req_char_ptr != 0)
+ reqbyte_notfound = search_requested_char(common, (pcre_uchar)re->req_char, (re->flags & PCRE_RCH_CASELESS) != 0, (re->flags & PCRE_FIRSTSET) != 0);
+
+/* Store the current STR_PTR in OVECTOR(0). */
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), STR_PTR, 0);
+/* Copy the limit of allowed recursions. */
+OP1(SLJIT_MOV, COUNT_MATCH, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LIMIT_MATCH);
+if (common->capture_last_ptr != 0)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->capture_last_ptr, SLJIT_IMM, -1);
+
+if (common->needs_start_ptr)
+ {
+ SLJIT_ASSERT(common->start_ptr != OVECTOR(0));
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_ptr, STR_PTR, 0);
+ }
+else
+ SLJIT_ASSERT(common->start_ptr == OVECTOR(0));
+
+/* Copy the beginning of the string. */
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start + sizeof(sljit_sw), STR_PTR, 0);
+ JUMPHERE(jump);
+ }
+else if (mode == JIT_PARTIAL_HARD_COMPILE)
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+
+compile_matchingpath(common, rootbacktrack.cc, ccend, &rootbacktrack);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ {
+ sljit_free_compiler(compiler);
+ SLJIT_FREE(common->optimized_cbracket);
+ SLJIT_FREE(common->private_data_ptrs);
+ if (common->has_then)
+ SLJIT_FREE(common->then_offsets);
+ return;
+ }
+
+empty_match = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+empty_match_found_label = LABEL();
+
+common->accept_label = LABEL();
+if (common->accept != NULL)
+ set_jumps(common->accept, common->accept_label);
+
+/* This means we have a match. Update the ovector. */
+copy_ovector(common, re->top_bracket + 1);
+common->quit_label = common->forced_quit_label = LABEL();
+if (common->quit != NULL)
+ set_jumps(common->quit, common->quit_label);
+if (common->forced_quit != NULL)
+ set_jumps(common->forced_quit, common->forced_quit_label);
+if (minlength_check_failed != NULL)
+ SET_LABEL(minlength_check_failed, common->forced_quit_label);
+sljit_emit_return(compiler, SLJIT_MOV, SLJIT_RETURN_REG, 0);
+
+if (mode != JIT_COMPILE)
+ {
+ common->partialmatchlabel = LABEL();
+ set_jumps(common->partialmatch, common->partialmatchlabel);
+ return_with_partial_match(common, common->quit_label);
+ }
+
+empty_match_backtrack_label = LABEL();
+compile_backtrackingpath(common, rootbacktrack.top);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ {
+ sljit_free_compiler(compiler);
+ SLJIT_FREE(common->optimized_cbracket);
+ SLJIT_FREE(common->private_data_ptrs);
+ if (common->has_then)
+ SLJIT_FREE(common->then_offsets);
+ return;
+ }
+
+SLJIT_ASSERT(rootbacktrack.prev == NULL);
+reset_match_label = LABEL();
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+ {
+ /* Update hit_start only in the first time. */
+ jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, -1);
+ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, TMP1, 0);
+ JUMPHERE(jump);
+ }
+
+/* Check we have remaining characters. */
+if ((re->options & PCRE_ANCHORED) == 0 && (re->options & PCRE_FIRSTLINE) != 0)
+ {
+ SLJIT_ASSERT(common->first_line_end != 0);
+ OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+ }
+
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_ptr);
+
+if ((re->options & PCRE_ANCHORED) == 0)
+ {
+ if ((re->options & PCRE_FIRSTLINE) == 0)
+ CMPTO(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0, mainloop_label);
+ else
+ CMPTO(SLJIT_C_LESS, STR_PTR, 0, TMP1, 0, mainloop_label);
+ }
+
+/* No more remaining characters. */
+if (reqbyte_notfound != NULL)
+ JUMPHERE(reqbyte_notfound);
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+ CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1, common->partialmatchlabel);
+
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_NOMATCH);
+JUMPTO(SLJIT_JUMP, common->quit_label);
+
+flush_stubs(common);
+
+JUMPHERE(empty_match);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty));
+CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0, empty_match_backtrack_label);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty_atstart));
+CMPTO(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0, empty_match_found_label);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, empty_match_found_label);
+JUMPTO(SLJIT_JUMP, empty_match_backtrack_label);
+
+common->currententry = common->entries;
+common->local_exit = TRUE;
+quit_label = common->quit_label;
+while (common->currententry != NULL)
+ {
+ /* Might add new entries. */
+ compile_recurse(common);
+ if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+ {
+ sljit_free_compiler(compiler);
+ SLJIT_FREE(common->optimized_cbracket);
+ SLJIT_FREE(common->private_data_ptrs);
+ if (common->has_then)
+ SLJIT_FREE(common->then_offsets);
+ return;
+ }
+ flush_stubs(common);
+ common->currententry = common->currententry->next;
+ }
+common->local_exit = FALSE;
+common->quit_label = quit_label;
+
+/* Allocating stack, returns with PCRE_ERROR_JIT_STACKLIMIT if fails. */
+/* This is a (really) rare case. */
+set_jumps(common->stackalloc, LABEL());
+/* RETURN_ADDR is not a saved register. */
+sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP2, 0);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top), STACK_TOP, 0);
+OP2(SLJIT_ADD, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit), SLJIT_IMM, STACK_GROWTH_RATE);
+
+sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_stack_resize));
+jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top));
+OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit));
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+
+/* Allocation failed. */
+JUMPHERE(jump);
+/* We break the return address cache here, but this is a really rare case. */
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_JIT_STACKLIMIT);
+JUMPTO(SLJIT_JUMP, common->quit_label);
+
+/* Call limit reached. */
+set_jumps(common->calllimit, LABEL());
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_MATCHLIMIT);
+JUMPTO(SLJIT_JUMP, common->quit_label);
+
+if (common->revertframes != NULL)
+ {
+ set_jumps(common->revertframes, LABEL());
+ do_revertframes(common);
+ }
+if (common->wordboundary != NULL)
+ {
+ set_jumps(common->wordboundary, LABEL());
+ check_wordboundary(common);
+ }
+if (common->anynewline != NULL)
+ {
+ set_jumps(common->anynewline, LABEL());
+ check_anynewline(common);
+ }
+if (common->hspace != NULL)
+ {
+ set_jumps(common->hspace, LABEL());
+ check_hspace(common);
+ }
+if (common->vspace != NULL)
+ {
+ set_jumps(common->vspace, LABEL());
+ check_vspace(common);
+ }
+if (common->casefulcmp != NULL)
+ {
+ set_jumps(common->casefulcmp, LABEL());
+ do_casefulcmp(common);
+ }
+if (common->caselesscmp != NULL)
+ {
+ set_jumps(common->caselesscmp, LABEL());
+ do_caselesscmp(common);
+ }
+if (common->reset_match != NULL)
+ {
+ set_jumps(common->reset_match, LABEL());
+ do_reset_match(common, (re->top_bracket + 1) * 2);
+ CMPTO(SLJIT_C_GREATER, STR_PTR, 0, TMP1, 0, continue_match_label);
+ OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0);
+ JUMPTO(SLJIT_JUMP, reset_match_label);
+ }
+#ifdef SUPPORT_UTF
+#ifndef COMPILE_PCRE32
+if (common->utfreadchar != NULL)
+ {
+ set_jumps(common->utfreadchar, LABEL());
+ do_utfreadchar(common);
+ }
+#endif /* !COMPILE_PCRE32 */
+#ifdef COMPILE_PCRE8
+if (common->utfreadtype8 != NULL)
+ {
+ set_jumps(common->utfreadtype8, LABEL());
+ do_utfreadtype8(common);
+ }
+#endif /* COMPILE_PCRE8 */
+#endif /* SUPPORT_UTF */
+#ifdef SUPPORT_UCP
+if (common->getucd != NULL)
+ {
+ set_jumps(common->getucd, LABEL());
+ do_getucd(common);
+ }
+#endif
+
+SLJIT_FREE(common->optimized_cbracket);
+SLJIT_FREE(common->private_data_ptrs);
+if (common->has_then)
+ SLJIT_FREE(common->then_offsets);
+
+executable_func = sljit_generate_code(compiler);
+executable_size = sljit_get_generated_code_size(compiler);
+sljit_free_compiler(compiler);
+if (executable_func == NULL)
+ return;
+
+/* Reuse the function descriptor if possible. */
+if ((extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 && extra->executable_jit != NULL)
+ functions = (executable_functions *)extra->executable_jit;
+else
+ {
+ /* Note: If your memory-checker has flagged the allocation below as a
+ * memory leak, it is probably because you either forgot to call
+ * pcre_free_study() (or pcre16_free_study()) on the pcre_extra (or
+ * pcre16_extra) object, or you called said function after having
+ * cleared the PCRE_EXTRA_EXECUTABLE_JIT bit from the "flags" field
+ * of the object. (The function will only free the JIT data if the
+ * bit remains set, as the bit indicates that the pointer to the data
+ * is valid.)
+ */
+ functions = SLJIT_MALLOC(sizeof(executable_functions));
+ if (functions == NULL)
+ {
+ /* This case is highly unlikely since we just recently
+ freed a lot of memory. Although not impossible. */
+ sljit_free_code(executable_func);
+ return;
+ }
+ memset(functions, 0, sizeof(executable_functions));
+ functions->top_bracket = (re->top_bracket + 1) * 2;
+ functions->limit_match = (re->flags & PCRE_MLSET) != 0 ? re->limit_match : 0;
+ extra->executable_jit = functions;
+ extra->flags |= PCRE_EXTRA_EXECUTABLE_JIT;
+ }
+
+functions->executable_funcs[mode] = executable_func;
+functions->executable_sizes[mode] = executable_size;
+}
+
+static int jit_machine_stack_exec(jit_arguments *arguments, void* executable_func)
+{
+union {
+ void* executable_func;
+ jit_function call_executable_func;
+} convert_executable_func;
+pcre_uint8 local_space[MACHINE_STACK_SIZE];
+struct sljit_stack local_stack;
+
+local_stack.top = (sljit_sw)&local_space;
+local_stack.base = local_stack.top;
+local_stack.limit = local_stack.base + MACHINE_STACK_SIZE;
+local_stack.max_limit = local_stack.limit;
+arguments->stack = &local_stack;
+convert_executable_func.executable_func = executable_func;
+return convert_executable_func.call_executable_func(arguments);
+}
+
+int
+PRIV(jit_exec)(const PUBL(extra) *extra_data, const pcre_uchar *subject,
+ int length, int start_offset, int options, int *offsets, int offset_count)
+{
+executable_functions *functions = (executable_functions *)extra_data->executable_jit;
+union {
+ void* executable_func;
+ jit_function call_executable_func;
+} convert_executable_func;
+jit_arguments arguments;
+int max_offset_count;
+int retval;
+int mode = JIT_COMPILE;
+
+if ((options & PCRE_PARTIAL_HARD) != 0)
+ mode = JIT_PARTIAL_HARD_COMPILE;
+else if ((options & PCRE_PARTIAL_SOFT) != 0)
+ mode = JIT_PARTIAL_SOFT_COMPILE;
+
+if (functions->executable_funcs[mode] == NULL)
+ return PCRE_ERROR_JIT_BADOPTION;
+
+/* Sanity checks should be handled by pcre_exec. */
+arguments.str = subject + start_offset;
+arguments.begin = subject;
+arguments.end = subject + length;
+arguments.mark_ptr = NULL;
+/* JIT decreases this value less frequently than the interpreter. */
+arguments.limit_match = ((extra_data->flags & PCRE_EXTRA_MATCH_LIMIT) == 0) ? MATCH_LIMIT : (pcre_uint32)(extra_data->match_limit);
+if (functions->limit_match != 0 && functions->limit_match < arguments.limit_match)
+ arguments.limit_match = functions->limit_match;
+arguments.notbol = (options & PCRE_NOTBOL) != 0;
+arguments.noteol = (options & PCRE_NOTEOL) != 0;
+arguments.notempty = (options & PCRE_NOTEMPTY) != 0;
+arguments.notempty_atstart = (options & PCRE_NOTEMPTY_ATSTART) != 0;
+arguments.offsets = offsets;
+arguments.callout_data = (extra_data->flags & PCRE_EXTRA_CALLOUT_DATA) != 0 ? extra_data->callout_data : NULL;
+arguments.real_offset_count = offset_count;
+
+/* pcre_exec() rounds offset_count to a multiple of 3, and then uses only 2/3 of
+the output vector for storing captured strings, with the remainder used as
+workspace. We don't need the workspace here. For compatibility, we limit the
+number of captured strings in the same way as pcre_exec(), so that the user
+gets the same result with and without JIT. */
+
+if (offset_count != 2)
+ offset_count = ((offset_count - (offset_count % 3)) * 2) / 3;
+max_offset_count = functions->top_bracket;
+if (offset_count > max_offset_count)
+ offset_count = max_offset_count;
+arguments.offset_count = offset_count;
+
+if (functions->callback)
+ arguments.stack = (struct sljit_stack *)functions->callback(functions->userdata);
+else
+ arguments.stack = (struct sljit_stack *)functions->userdata;
+
+if (arguments.stack == NULL)
+ retval = jit_machine_stack_exec(&arguments, functions->executable_funcs[mode]);
+else
+ {
+ convert_executable_func.executable_func = functions->executable_funcs[mode];
+ retval = convert_executable_func.call_executable_func(&arguments);
+ }
+
+if (retval * 2 > offset_count)
+ retval = 0;
+if ((extra_data->flags & PCRE_EXTRA_MARK) != 0)
+ *(extra_data->mark) = arguments.mark_ptr;
+
+return retval;
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_jit_exec(const pcre *argument_re, const pcre_extra *extra_data,
+ PCRE_SPTR subject, int length, int start_offset, int options,
+ int *offsets, int offset_count, pcre_jit_stack *stack)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_jit_exec(const pcre16 *argument_re, const pcre16_extra *extra_data,
+ PCRE_SPTR16 subject, int length, int start_offset, int options,
+ int *offsets, int offset_count, pcre16_jit_stack *stack)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre32_jit_exec(const pcre32 *argument_re, const pcre32_extra *extra_data,
+ PCRE_SPTR32 subject, int length, int start_offset, int options,
+ int *offsets, int offset_count, pcre32_jit_stack *stack)
+#endif
+{
+pcre_uchar *subject_ptr = (pcre_uchar *)subject;
+executable_functions *functions = (executable_functions *)extra_data->executable_jit;
+union {
+ void* executable_func;
+ jit_function call_executable_func;
+} convert_executable_func;
+jit_arguments arguments;
+int max_offset_count;
+int retval;
+int mode = JIT_COMPILE;
+
+SLJIT_UNUSED_ARG(argument_re);
+
+/* Plausibility checks */
+if ((options & ~PUBLIC_JIT_EXEC_OPTIONS) != 0) return PCRE_ERROR_JIT_BADOPTION;
+
+if ((options & PCRE_PARTIAL_HARD) != 0)
+ mode = JIT_PARTIAL_HARD_COMPILE;
+else if ((options & PCRE_PARTIAL_SOFT) != 0)
+ mode = JIT_PARTIAL_SOFT_COMPILE;
+
+if (functions->executable_funcs[mode] == NULL)
+ return PCRE_ERROR_JIT_BADOPTION;
+
+/* Sanity checks should be handled by pcre_exec. */
+arguments.stack = (struct sljit_stack *)stack;
+arguments.str = subject_ptr + start_offset;
+arguments.begin = subject_ptr;
+arguments.end = subject_ptr + length;
+arguments.mark_ptr = NULL;
+/* JIT decreases this value less frequently than the interpreter. */
+arguments.limit_match = ((extra_data->flags & PCRE_EXTRA_MATCH_LIMIT) == 0) ? MATCH_LIMIT : (pcre_uint32)(extra_data->match_limit);
+if (functions->limit_match != 0 && functions->limit_match < arguments.limit_match)
+ arguments.limit_match = functions->limit_match;
+arguments.notbol = (options & PCRE_NOTBOL) != 0;
+arguments.noteol = (options & PCRE_NOTEOL) != 0;
+arguments.notempty = (options & PCRE_NOTEMPTY) != 0;
+arguments.notempty_atstart = (options & PCRE_NOTEMPTY_ATSTART) != 0;
+arguments.offsets = offsets;
+arguments.callout_data = (extra_data->flags & PCRE_EXTRA_CALLOUT_DATA) != 0 ? extra_data->callout_data : NULL;
+arguments.real_offset_count = offset_count;
+
+/* pcre_exec() rounds offset_count to a multiple of 3, and then uses only 2/3 of
+the output vector for storing captured strings, with the remainder used as
+workspace. We don't need the workspace here. For compatibility, we limit the
+number of captured strings in the same way as pcre_exec(), so that the user
+gets the same result with and without JIT. */
+
+if (offset_count != 2)
+ offset_count = ((offset_count - (offset_count % 3)) * 2) / 3;
+max_offset_count = functions->top_bracket;
+if (offset_count > max_offset_count)
+ offset_count = max_offset_count;
+arguments.offset_count = offset_count;
+
+convert_executable_func.executable_func = functions->executable_funcs[mode];
+retval = convert_executable_func.call_executable_func(&arguments);
+
+if (retval * 2 > offset_count)
+ retval = 0;
+if ((extra_data->flags & PCRE_EXTRA_MARK) != 0)
+ *(extra_data->mark) = arguments.mark_ptr;
+
+return retval;
+}
+
+void
+PRIV(jit_free)(void *executable_funcs)
+{
+int i;
+executable_functions *functions = (executable_functions *)executable_funcs;
+for (i = 0; i < JIT_NUMBER_OF_COMPILE_MODES; i++)
+ {
+ if (functions->executable_funcs[i] != NULL)
+ sljit_free_code(functions->executable_funcs[i]);
+ }
+SLJIT_FREE(functions);
+}
+
+int
+PRIV(jit_get_size)(void *executable_funcs)
+{
+int i;
+sljit_uw size = 0;
+sljit_uw *executable_sizes = ((executable_functions *)executable_funcs)->executable_sizes;
+for (i = 0; i < JIT_NUMBER_OF_COMPILE_MODES; i++)
+ size += executable_sizes[i];
+return (int)size;
+}
+
+const char*
+PRIV(jit_get_target)(void)
+{
+return sljit_get_platform_name();
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL pcre_jit_stack *
+pcre_jit_stack_alloc(int startsize, int maxsize)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL pcre16_jit_stack *
+pcre16_jit_stack_alloc(int startsize, int maxsize)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL pcre32_jit_stack *
+pcre32_jit_stack_alloc(int startsize, int maxsize)
+#endif
+{
+if (startsize < 1 || maxsize < 1)
+ return NULL;
+if (startsize > maxsize)
+ startsize = maxsize;
+startsize = (startsize + STACK_GROWTH_RATE - 1) & ~(STACK_GROWTH_RATE - 1);
+maxsize = (maxsize + STACK_GROWTH_RATE - 1) & ~(STACK_GROWTH_RATE - 1);
+return (PUBL(jit_stack)*)sljit_allocate_stack(startsize, maxsize);
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_jit_stack_free(pcre_jit_stack *stack)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL void
+pcre16_jit_stack_free(pcre16_jit_stack *stack)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL void
+pcre32_jit_stack_free(pcre32_jit_stack *stack)
+#endif
+{
+sljit_free_stack((struct sljit_stack *)stack);
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_assign_jit_stack(pcre_extra *extra, pcre_jit_callback callback, void *userdata)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL void
+pcre16_assign_jit_stack(pcre16_extra *extra, pcre16_jit_callback callback, void *userdata)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL void
+pcre32_assign_jit_stack(pcre32_extra *extra, pcre32_jit_callback callback, void *userdata)
+#endif
+{
+executable_functions *functions;
+if (extra != NULL &&
+ (extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+ extra->executable_jit != NULL)
+ {
+ functions = (executable_functions *)extra->executable_jit;
+ functions->callback = callback;
+ functions->userdata = userdata;
+ }
+}
+
+#else /* SUPPORT_JIT */
+
+/* These are dummy functions to avoid linking errors when JIT support is not
+being compiled. */
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL pcre_jit_stack *
+pcre_jit_stack_alloc(int startsize, int maxsize)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL pcre16_jit_stack *
+pcre16_jit_stack_alloc(int startsize, int maxsize)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL pcre32_jit_stack *
+pcre32_jit_stack_alloc(int startsize, int maxsize)
+#endif
+{
+(void)startsize;
+(void)maxsize;
+return NULL;
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_jit_stack_free(pcre_jit_stack *stack)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL void
+pcre16_jit_stack_free(pcre16_jit_stack *stack)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL void
+pcre32_jit_stack_free(pcre32_jit_stack *stack)
+#endif
+{
+(void)stack;
+}
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_assign_jit_stack(pcre_extra *extra, pcre_jit_callback callback, void *userdata)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DECL void
+pcre16_assign_jit_stack(pcre16_extra *extra, pcre16_jit_callback callback, void *userdata)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DECL void
+pcre32_assign_jit_stack(pcre32_extra *extra, pcre32_jit_callback callback, void *userdata)
+#endif
+{
+(void)extra;
+(void)callback;
+(void)userdata;
+}
+
+#endif
+
+/* End of pcre_jit_compile.c */