diff options
Diffstat (limited to 'plugins/Pcre16/src/pcre_jit_compile.c')
| -rw-r--r-- | plugins/Pcre16/src/pcre_jit_compile.c | 10690 |
1 files changed, 0 insertions, 10690 deletions
diff --git a/plugins/Pcre16/src/pcre_jit_compile.c b/plugins/Pcre16/src/pcre_jit_compile.c deleted file mode 100644 index debdf6ef45..0000000000 --- a/plugins/Pcre16/src/pcre_jit_compile.c +++ /dev/null @@ -1,10690 +0,0 @@ -/************************************************* -* 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. ------------------------------------------------------------------------------ -*/ - -#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, allocator_data) (PUBL(malloc))(size) -#define SLJIT_FREE(ptr, allocator_data) (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]; - void *read_only_data_heads[JIT_NUMBER_OF_COMPILE_MODES]; - sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES]; - PUBL(jit_callback) callback; - void *userdata; - pcre_uint32 top_bracket; - pcre_uint32 limit_match; -} 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; - -typedef struct label_addr_list { - struct sljit_label *label; - sljit_uw *update_addr; - struct label_addr_list *next; -} label_addr_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 4 - -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; - /* Chain list of read-only data ptrs. */ - void *read_only_data_head; - /* 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; - /* TRUE, when minlength is greater than 0. */ - BOOL might_be_empty; - /* \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; - pcre_uint32 nlmax; - pcre_uint32 nlmin; - int newline; - int bsr_nltype; - pcre_uint32 bsr_nlmax; - pcre_uint32 bsr_nlmin; - /* Dollar endonly. */ - int endonly; - /* Tables. */ - sljit_sw ctypes; - /* Named capturing brackets. */ - pcre_uchar *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; - struct sljit_label *ff_newline_shortcut; - stub_list *stubs; - label_addr_list *label_addrs; - 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 -#ifdef COMPILE_PCRE8 - jump_list *utfreadchar; - jump_list *utfreadchar16; - 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_R0 -#define TMP2 SLJIT_R2 -#define TMP3 SLJIT_R3 -#define STR_PTR SLJIT_S0 -#define STR_END SLJIT_S1 -#define STACK_TOP SLJIT_R1 -#define STACK_LIMIT SLJIT_S2 -#define COUNT_MATCH SLJIT_S3 -#define ARGUMENTS SLJIT_S4 -#define RETURN_ADDR SLJIT_R4 - -/* 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) * (sljit_sw)sizeof(sljit_sw)) -#define OVECTOR_PRIV(i) (common->cbra_ptr + (i) * (sljit_sw)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)) - -#define READ_CHAR_MAX 0x7fffffff - -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; -} - -static int no_alternatives(pcre_uchar *cc) -{ -int count = 0; -SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND)); -do - { - cc += GET(cc, 1); - count++; - } -while (*cc == OP_ALT); -SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS); -return count; -} - -static int ones_in_half_byte[16] = { - /* 0 */ 0, 1, 1, 2, /* 4 */ 1, 2, 2, 3, - /* 8 */ 1, 2, 2, 3, /* 12 */ 2, 3, 3, 4 -}; - -/* 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_CRPOSSTAR: - case OP_CRPOSPLUS: - case OP_CRPOSQUERY: - case OP_CRPOSRANGE: - case OP_CLASS: - case OP_NCLASS: - case OP_REF: - case OP_REFI: - case OP_DNREF: - case OP_DNREFI: - 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_DNCREF: - case OP_RREF: - case OP_DNRREF: - 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) -{ -int count; -pcre_uchar *slot; - -/* 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; - common->might_be_empty = 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: - common->optimized_cbracket[GET2(cc, 1)] = 0; - cc += 1 + IMM2_SIZE; - break; - - case OP_DNREF: - case OP_DNREFI: - case OP_DNCREF: - count = GET2(cc, 1 + IMM2_SIZE); - slot = common->name_table + GET2(cc, 1) * common->name_entry_size; - while (count-- > 0) - { - common->optimized_cbracket[GET2(slot, 0)] = 0; - slot += common->name_entry_size; - } - cc += 1 + 2 * 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_SP), 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_SP), 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_SP), 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_SP), 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_SP), 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_SP), 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_SP), OVECTOR(offset)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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++; - SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0); - cc += PRIVATE_DATA(cc + 1); - } - 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++; - SLJIT_ASSERT(PRIVATE_DATA(cc) != 0); - 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); - SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0); - cc += PRIVATE_DATA(cc + 1); - } - 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_SP), 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_SP), srcw[count]); - tmp2empty = FALSE; - tmp1next = TRUE; - } - } - else - { - if (tmp1next) - { - SLJIT_ASSERT(!tmp1empty); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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 void add_label_addr(compiler_common *common, sljit_uw *update_addr) -{ -DEFINE_COMPILER; -label_addr_list *label_addr; - -label_addr = sljit_alloc_memory(compiler, sizeof(label_addr_list)); -if (label_addr == NULL) - return; -label_addr->label = LABEL(); -label_addr->update_addr = update_addr; -label_addr->next = common->label_addrs; -common->label_addrs = label_addr; -} - -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_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_SP), LOCALS0, TMP1, 0); -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0); -#endif -add_stub(common, CMP(SLJIT_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_uw * allocate_read_only_data(compiler_common *common, sljit_uw size) -{ -DEFINE_COMPILER; -sljit_uw *result; - -if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) - return NULL; - -result = (sljit_uw *)SLJIT_MALLOC(size + sizeof(sljit_uw), compiler->allocator_data); -if (SLJIT_UNLIKELY(result == NULL)) - { - sljit_set_compiler_memory_error(compiler); - return NULL; - } - -*(void**)result = common->read_only_data_head; -common->read_only_data_head = (void *)result; -return result + 1; -} - -static void free_read_only_data(void *current, void *allocator_data) -{ -void *next; - -SLJIT_UNUSED_ARG(allocator_data); - -while (current != NULL) - { - next = *(void**)current; - SLJIT_FREE(current, allocator_data); - current = next; - } -} - -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_R0, 0, SLJIT_MEM1(SLJIT_S0), 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_SP), OVECTOR(i), SLJIT_R0, 0); - } -else - { - GET_LOCAL_BASE(SLJIT_R1, 0, OVECTOR_START); - OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1); - loop = LABEL(); - OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw), SLJIT_R0, 0); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1); - JUMPTO(SLJIT_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_SP), OVECTOR(1)); -if (length < 8) - { - for (i = 2; i < length; i++) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_NOT_ZERO, loop); - } - -OP1(SLJIT_MOV, STACK_TOP, 0, ARGUMENTS, 0); -if (common->mark_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0); -if (common->control_head_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_S2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(1), STR_PTR, 0); - -OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0); -if (common->mark_ptr != 0) - OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); -OP1(SLJIT_MOV_SI, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, offset_count)); -if (common->mark_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_R2, 0); -OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, offsets), SLJIT_IMM, sizeof(int)); -OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, begin)); -GET_LOCAL_BASE(SLJIT_S0, 0, OVECTOR_START); -/* Unlikely, but possible */ -early_quit = CMP(SLJIT_EQUAL, SLJIT_R1, 0, SLJIT_IMM, 0); -loop = LABEL(); -OP2(SLJIT_SUB, SLJIT_S1, 0, SLJIT_MEM1(SLJIT_S0), 0, SLJIT_R0, 0); -OP2(SLJIT_ADD, SLJIT_S0, 0, SLJIT_S0, 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_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT); -#endif -OP1(SLJIT_MOVU_SI, SLJIT_MEM1(SLJIT_R2), sizeof(int), SLJIT_S1, 0); -OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1); -JUMPTO(SLJIT_NOT_ZERO, loop); -JUMPHERE(early_quit); - -/* Calculate the return value, which is the maximum ovector value. */ -if (topbracket > 1) - { - GET_LOCAL_BASE(SLJIT_R0, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_sw)); - OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, topbracket + 1); - - /* OVECTOR(0) is never equal to SLJIT_S2. */ - loop = LABEL(); - OP1(SLJIT_MOVU, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), -(2 * (sljit_sw)sizeof(sljit_sw))); - OP2(SLJIT_SUB, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1); - CMPTO(SLJIT_EQUAL, SLJIT_R2, 0, SLJIT_S2, 0, loop); - OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_R1, 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_S1, 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_R1, 0, ARGUMENTS, 0); -OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_PARTIAL); -OP1(SLJIT_MOV_SI, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, real_offset_count)); -CMPTO(SLJIT_SIG_LESS, SLJIT_R2, 0, SLJIT_IMM, 2, quit); - -/* Store match begin and end. */ -OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, begin)); -OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, offsets)); - -jump = CMP(SLJIT_SIG_LESS, SLJIT_R2, 0, SLJIT_IMM, 3); -OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_ptr : (common->hit_start + (int)sizeof(sljit_sw)), SLJIT_S0, 0); -#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32 -OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT); -#endif -OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), 2 * sizeof(int), SLJIT_R2, 0); -JUMPHERE(jump); - -OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_used_ptr : common->hit_start); -OP2(SLJIT_SUB, SLJIT_S1, 0, STR_END, 0, SLJIT_S0, 0); -#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32 -OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT); -#endif -OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), sizeof(int), SLJIT_S1, 0); - -OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_S0, 0); -#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32 -OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT); -#endif -OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), 0, SLJIT_R2, 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_SP), 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_LESS_EQUAL, TMP1, 0, STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); - JUMPHERE(jump); - } -else if (common->mode == JIT_PARTIAL_HARD_COMPILE) - { - jump = CMP(SLJIT_LESS_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); -else if (common->mode == JIT_PARTIAL_SOFT_COMPILE) - jump = CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1); - -if (common->mode == JIT_PARTIAL_SOFT_COMPILE) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - return; - } - -jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0); -if (common->mode == JIT_PARTIAL_SOFT_COMPILE) - { - add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); - add_jump(compiler, end_reached, JUMP(SLJIT_JUMP)); - } -else - { - add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), 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_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - return; - } - -/* Partial matching mode. */ -jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0); -add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); -if (common->mode == JIT_PARTIAL_SOFT_COMPILE) - { - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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 peek_char(compiler_common *common, pcre_uint32 max) -{ -/* 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 - -SLJIT_UNUSED_ARG(max); - -OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 -if (common->utf) - { - if (max < 128) return; - - jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - 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 */ - -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 -if (common->utf) - { - if (max < 0xd800) return; - - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); - jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1); - /* TMP2 contains the high surrogate. */ - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); - OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40); - OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); - OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff); - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); - JUMPHERE(jump); - } -#endif -} - -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - -static BOOL is_char7_bitset(const pcre_uint8 *bitset, BOOL nclass) -{ -/* Tells whether the character codes below 128 are enough -to determine a match. */ -const pcre_uint8 value = nclass ? 0xff : 0; -const pcre_uint8 *end = bitset + 32; - -bitset += 16; -do - { - if (*bitset++ != value) - return FALSE; - } -while (bitset < end); -return TRUE; -} - -static void read_char7_type(compiler_common *common, BOOL full_read) -{ -/* Reads the precise character type of a character into TMP1, if the character -is less than 128. Otherwise it returns with zero. Does not check STR_END. The -full_read argument tells whether characters above max are accepted or not. */ -DEFINE_COMPILER; -struct sljit_jump *jump; - -SLJIT_ASSERT(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)); - -OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); - -if (full_read) - { - jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xc0); - OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0); - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); - JUMPHERE(jump); - } -} - -#endif /* SUPPORT_UTF && COMPILE_PCRE8 */ - -static void read_char_range(compiler_common *common, pcre_uint32 min, pcre_uint32 max, BOOL update_str_ptr) -{ -/* Reads the precise value of a character into TMP1, if the character is -between min and max (c >= min && c <= max). Otherwise it returns with a value -outside the range. Does not check STR_END. */ -DEFINE_COMPILER; -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 -struct sljit_jump *jump; -#endif -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 -struct sljit_jump *jump2; -#endif - -SLJIT_UNUSED_ARG(update_str_ptr); -SLJIT_UNUSED_ARG(min); -SLJIT_UNUSED_ARG(max); -SLJIT_ASSERT(min <= max); - -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)); - -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 -if (common->utf) - { - if (max < 128 && !update_str_ptr) return; - - jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); - if (min >= 0x10000) - { - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xf0); - if (update_str_ptr) - OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); - jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x7); - OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); - OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); - OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); - 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(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2)); - if (!update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); - 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); - JUMPHERE(jump2); - if (update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); - } - else if (min >= 0x800 && max <= 0xffff) - { - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xe0); - if (update_str_ptr) - OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); - jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xf); - OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); - OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); - OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); - if (!update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); - 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); - JUMPHERE(jump2); - if (update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); - } - else if (max >= 0x800) - add_jump(compiler, (max < 0x10000) ? &common->utfreadchar16 : &common->utfreadchar, JUMP(SLJIT_FAST_CALL)); - else if (max < 128) - { - OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); - } - else - { - OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); - if (!update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - else - OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); - OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); - 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); - if (update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); - } - JUMPHERE(jump); - } -#endif - -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 -if (common->utf) - { - if (max >= 0x10000) - { - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); - jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1); - /* TMP2 contains the high surrogate. */ - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); - OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40); - OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); - 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_OR, TMP1, 0, TMP1, 0, TMP2, 0); - JUMPHERE(jump); - return; - } - - if (max < 0xd800 && !update_str_ptr) return; - - /* Skip low surrogate if necessary. */ - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); - jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1); - if (update_str_ptr) - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - if (max >= 0xd800) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x10000); - JUMPHERE(jump); - } -#endif -} - -static SLJIT_INLINE void read_char(compiler_common *common) -{ -read_char_range(common, 0, READ_CHAR_MAX, TRUE); -} - -static void read_char8_type(compiler_common *common, BOOL update_str_ptr) -{ -/* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */ -DEFINE_COMPILER; -#if defined SUPPORT_UTF || !defined COMPILE_PCRE8 -struct sljit_jump *jump; -#endif -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 -struct sljit_jump *jump2; -#endif - -SLJIT_UNUSED_ARG(update_str_ptr); - -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 SUPPORT_UTF && defined COMPILE_PCRE8 -if (common->utf) - { - /* 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_LESS, TMP2, 0, SLJIT_IMM, 0xc0); - if (!update_str_ptr) - { - 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, 0x3f); - 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); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); - jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255); - OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); - JUMPHERE(jump2); - } - else - add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL)); - JUMPHERE(jump); - return; - } -#endif /* SUPPORT_UTF && COMPILE_PCRE8 */ - -#if !defined COMPILE_PCRE8 -/* The ctypes array contains only 256 values. */ -OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); -jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255); -#endif -OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); -#if !defined COMPILE_PCRE8 -JUMPHERE(jump); -#endif - -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 -if (common->utf && update_str_ptr) - { - /* Skip low surrogate if necessary. */ - OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800); - jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1); - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - JUMPHERE(jump); - } -#endif /* SUPPORT_UTF && COMPILE_PCRE16 */ -} - -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_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_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 jumpifmatch) -{ -/* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */ -DEFINE_COMPILER; -struct sljit_jump *jump; - -if (nltype == NLTYPE_ANY) - { - add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL)); - add_jump(compiler, backtracks, JUMP(jumpifmatch ? SLJIT_NOT_ZERO : SLJIT_ZERO)); - } -else if (nltype == NLTYPE_ANYCRLF) - { - if (jumpifmatch) - { - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR)); - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); - } - else - { - jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); - JUMPHERE(jump); - } - } -else - { - SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256); - add_jump(compiler, backtracks, CMP(jumpifmatch ? SLJIT_EQUAL : SLJIT_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 in TMP2. */ -DEFINE_COMPILER; -struct sljit_jump *jump; - -sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); -OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); -OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); -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); - -/* Searching for the first zero. */ -OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800); -jump = JUMP(SLJIT_NOT_ZERO); -/* Two byte sequence. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); -OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2)); -sljit_emit_fast_return(compiler, RETURN_ADDR, 0); - -JUMPHERE(jump); -OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); -OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800); -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); - -OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10000); -jump = JUMP(SLJIT_NOT_ZERO); -/* Three byte sequence. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); -OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3)); -sljit_emit_fast_return(compiler, RETURN_ADDR, 0); - -/* Four byte sequence. */ -JUMPHERE(jump); -OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2)); -OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000); -OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); -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(4)); -sljit_emit_fast_return(compiler, RETURN_ADDR, 0); -} - -static void do_utfreadchar16(compiler_common *common) -{ -/* Fast decoding a UTF-8 character. TMP1 contains the first byte -of the character (>= 0xc0). Return value in TMP1. */ -DEFINE_COMPILER; -struct sljit_jump *jump; - -sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); -OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); -OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); -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); - -/* Searching for the first zero. */ -OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800); -jump = JUMP(SLJIT_NOT_ZERO); -/* Two byte sequence. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 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, 0x400); -OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_NOT_ZERO); -/* This code runs only in 8 bit mode. No need to shift the value. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); -OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); -OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800); -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); -/* Three byte sequence. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); -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_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); -/* The upper 5 bits are known at this point. */ -compare = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x3); -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); -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); - -/* We only have types for characters less than 256. */ -JUMPHERE(jump); -OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0); -OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); -sljit_emit_fast_return(compiler, RETURN_ADDR, 0); -} - -#endif /* COMPILE_PCRE8 */ - -#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_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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop); - CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop); - JUMPHERE(end); - OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->first_line_end, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - } - else - { - end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); - mainloop = LABEL(); - /* Continual stores does not cause data dependency. */ - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->first_line_end, STR_PTR, 0); - read_char_range(common, common->nlmin, common->nlmax, TRUE); - check_newlinechar(common, common->nltype, &newline, TRUE); - CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, mainloop); - JUMPHERE(end); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_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_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_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_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_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_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 16 -#define MAX_N_BYTES 8 - -static SLJIT_INLINE void add_prefix_byte(pcre_uint8 byte, pcre_uint8 *bytes) -{ -pcre_uint8 len = bytes[0]; -int i; - -if (len == 255) - return; - -if (len == 0) - { - bytes[0] = 1; - bytes[1] = byte; - return; - } - -for (i = len; i > 0; i--) - if (bytes[i] == byte) - return; - -if (len >= MAX_N_BYTES - 1) - { - bytes[0] = 255; - return; - } - -len++; -bytes[len] = byte; -bytes[0] = len; -} - -static int scan_prefix(compiler_common *common, pcre_uchar *cc, pcre_uint32 *chars, pcre_uint8 *bytes, int max_chars) -{ -/* Recursive function, which scans prefix literals. */ -BOOL last, any, caseless; -int len, repeat, len_save, consumed = 0; -pcre_uint32 chr, mask; -pcre_uchar *alternative, *cc_save, *oc; -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 -pcre_uchar othercase[8]; -#elif defined SUPPORT_UTF && defined COMPILE_PCRE16 -pcre_uchar othercase[2]; -#else -pcre_uchar othercase[1]; -#endif - -repeat = 1; -while (TRUE) - { - last = TRUE; - any = FALSE; - caseless = FALSE; - switch (*cc) - { - case OP_CHARI: - caseless = TRUE; - case OP_CHAR: - last = FALSE; - 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_ASSERT: - case OP_ASSERT_NOT: - case OP_ASSERTBACK: - case OP_ASSERTBACK_NOT: - cc = bracketend(cc); - continue; - - case OP_PLUSI: - case OP_MINPLUSI: - case OP_POSPLUSI: - caseless = TRUE; - case OP_PLUS: - case OP_MINPLUS: - case OP_POSPLUS: - cc++; - break; - - case OP_EXACTI: - caseless = TRUE; - case OP_EXACT: - repeat = GET2(cc, 1); - last = FALSE; - cc += 1 + IMM2_SIZE; - break; - - case OP_QUERYI: - case OP_MINQUERYI: - case OP_POSQUERYI: - caseless = TRUE; - case OP_QUERY: - case OP_MINQUERY: - case OP_POSQUERY: - len = 1; - cc++; -#ifdef SUPPORT_UTF - if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc); -#endif - max_chars = scan_prefix(common, cc + len, chars, bytes, max_chars); - if (max_chars == 0) - return consumed; - last = FALSE; - break; - - case OP_KET: - cc += 1 + LINK_SIZE; - continue; - - case OP_ALT: - cc += GET(cc, 1); - continue; - - case OP_ONCE: - case OP_ONCE_NC: - case OP_BRA: - case OP_BRAPOS: - case OP_CBRA: - case OP_CBRAPOS: - alternative = cc + GET(cc, 1); - while (*alternative == OP_ALT) - { - max_chars = scan_prefix(common, alternative + 1 + LINK_SIZE, chars, bytes, max_chars); - if (max_chars == 0) - return consumed; - alternative += GET(alternative, 1); - } - - if (*cc == OP_CBRA || *cc == OP_CBRAPOS) - cc += IMM2_SIZE; - cc += 1 + LINK_SIZE; - continue; - - case OP_CLASS: -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && !is_char7_bitset((const pcre_uint8 *)(cc + 1), FALSE)) return consumed; -#endif - any = TRUE; - cc += 1 + 32 / sizeof(pcre_uchar); - break; - - case OP_NCLASS: -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 - if (common->utf) return consumed; -#endif - any = TRUE; - cc += 1 + 32 / sizeof(pcre_uchar); - break; - -#if defined SUPPORT_UTF || !defined COMPILE_PCRE8 - case OP_XCLASS: -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 - if (common->utf) return consumed; -#endif - any = TRUE; - cc += GET(cc, 1); - break; -#endif - - case OP_DIGIT: -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_digit, FALSE)) - return consumed; -#endif - any = TRUE; - cc++; - break; - - case OP_WHITESPACE: -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_space, FALSE)) - return consumed; -#endif - any = TRUE; - cc++; - break; - - case OP_WORDCHAR: -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_word, FALSE)) - return consumed; -#endif - any = TRUE; - cc++; - break; - - case OP_NOT: - case OP_NOTI: - cc++; - /* Fall through. */ - case OP_NOT_DIGIT: - case OP_NOT_WHITESPACE: - case OP_NOT_WORDCHAR: - case OP_ANY: - case OP_ALLANY: -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 - if (common->utf) return consumed; -#endif - any = TRUE; - cc++; - break; - -#ifdef SUPPORT_UCP - case OP_NOTPROP: - case OP_PROP: -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 - if (common->utf) return consumed; -#endif - any = TRUE; - cc += 1 + 2; - break; -#endif - - case OP_TYPEEXACT: - repeat = GET2(cc, 1); - cc += 1 + IMM2_SIZE; - continue; - - case OP_NOTEXACT: - case OP_NOTEXACTI: -#if defined SUPPORT_UTF && !defined COMPILE_PCRE32 - if (common->utf) return consumed; -#endif - any = TRUE; - repeat = GET2(cc, 1); - cc += 1 + IMM2_SIZE + 1; - break; - - default: - return consumed; - } - - if (any) - { -#if defined COMPILE_PCRE8 - mask = 0xff; -#elif defined COMPILE_PCRE16 - mask = 0xffff; -#elif defined COMPILE_PCRE32 - mask = 0xffffffff; -#else - SLJIT_ASSERT_STOP(); -#endif - - do - { - chars[0] = mask; - chars[1] = mask; - bytes[0] = 255; - - consumed++; - if (--max_chars == 0) - return consumed; - chars += 2; - bytes += MAX_N_BYTES; - } - while (--repeat > 0); - - repeat = 1; - continue; - } - - len = 1; -#ifdef SUPPORT_UTF - if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc); -#endif - - if (caseless && char_has_othercase(common, cc)) - { -#ifdef SUPPORT_UTF - if (common->utf) - { - GETCHAR(chr, cc); - if ((int)PRIV(ord2utf)(char_othercase(common, chr), othercase) != len) - return consumed; - } - else -#endif - { - chr = *cc; - othercase[0] = TABLE_GET(chr, common->fcc, chr); - } - } - else - caseless = FALSE; - - len_save = len; - cc_save = cc; - while (TRUE) - { - oc = othercase; - do - { - chr = *cc; -#ifdef COMPILE_PCRE32 - if (SLJIT_UNLIKELY(chr == NOTACHAR)) - return consumed; -#endif - add_prefix_byte((pcre_uint8)chr, bytes); - - mask = 0; - if (caseless) - { - add_prefix_byte((pcre_uint8)*oc, bytes); - mask = *cc ^ *oc; - chr |= mask; - } - -#ifdef COMPILE_PCRE32 - if (chars[0] == NOTACHAR && chars[1] == 0) -#else - if (chars[0] == NOTACHAR) -#endif - { - chars[0] = chr; - chars[1] = mask; - } - else - { - mask |= chars[0] ^ chr; - chr |= mask; - chars[0] = chr; - chars[1] |= mask; - } - - len--; - consumed++; - if (--max_chars == 0) - return consumed; - chars += 2; - bytes += MAX_N_BYTES; - cc++; - oc++; - } - while (len > 0); - - if (--repeat == 0) - break; - - len = len_save; - cc = cc_save; - } - - repeat = 1; - if (last) - return consumed; - } -} - -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_uint8 bytes[MAX_N_CHARS * MAX_N_BYTES]; -pcre_uint8 ones[MAX_N_CHARS]; -int offsets[3]; -pcre_uint32 mask; -pcre_uint8 *byte_set, *byte_set_end; -int i, max, from; -int range_right = -1, range_len = 3 - 1; -sljit_ub *update_table = NULL; -BOOL in_range; - -for (i = 0; i < MAX_N_CHARS; i++) - { - chars[i << 1] = NOTACHAR; - chars[(i << 1) + 1] = 0; - bytes[i * MAX_N_BYTES] = 0; - } - -max = scan_prefix(common, common->start, chars, bytes, MAX_N_CHARS); - -if (max <= 1) - return FALSE; - -for (i = 0; i < max; i++) - { - mask = chars[(i << 1) + 1]; - ones[i] = ones_in_half_byte[mask & 0xf]; - mask >>= 4; - while (mask != 0) - { - ones[i] += ones_in_half_byte[mask & 0xf]; - mask >>= 4; - } - } - -in_range = FALSE; -from = 0; /* Prevent compiler "uninitialized" warning */ -for (i = 0; i <= max; i++) - { - if (in_range && (i - from) > range_len && (bytes[(i - 1) * MAX_N_BYTES] <= 4)) - { - range_len = i - from; - range_right = i - 1; - } - - if (i < max && bytes[i * MAX_N_BYTES] < 255) - { - if (!in_range) - { - in_range = TRUE; - from = i; - } - } - else if (in_range) - in_range = FALSE; - } - -if (range_right >= 0) - { - update_table = (sljit_ub *)allocate_read_only_data(common, 256); - if (update_table == NULL) - return TRUE; - memset(update_table, IN_UCHARS(range_len), 256); - - for (i = 0; i < range_len; i++) - { - byte_set = bytes + ((range_right - i) * MAX_N_BYTES); - SLJIT_ASSERT(byte_set[0] > 0 && byte_set[0] < 255); - byte_set_end = byte_set + byte_set[0]; - byte_set++; - while (byte_set <= byte_set_end) - { - if (update_table[*byte_set] > IN_UCHARS(i)) - update_table[*byte_set] = IN_UCHARS(i); - byte_set++; - } - } - } - -offsets[0] = -1; -/* Scan forward. */ -for (i = 0; i < max; i++) - if (ones[i] <= 2) { - offsets[0] = i; - break; - } - -if (offsets[0] < 0 && range_right < 0) - return FALSE; - -if (offsets[0] >= 0) - { - /* Scan backward. */ - offsets[1] = -1; - for (i = max - 1; i > offsets[0]; i--) - if (ones[i] <= 2 && i != range_right) - { - offsets[1] = i; - break; - } - - /* This case is handled better by fast_forward_first_char. */ - if (offsets[1] == -1 && offsets[0] == 0 && range_right < 0) - return FALSE; - - offsets[2] = -1; - /* We only search for a middle character if there is no range check. */ - if (offsets[1] >= 0 && range_right == -1) - { - /* Scan from middle. */ - for (i = (offsets[0] + offsets[1]) / 2 + 1; i < offsets[1]; i++) - if (ones[i] <= 2) - { - offsets[2] = i; - break; - } - - if (offsets[2] == -1) - { - for (i = (offsets[0] + offsets[1]) / 2; i > offsets[0]; i--) - if (ones[i] <= 2) - { - offsets[2] = i; - break; - } - } - } - - SLJIT_ASSERT(offsets[1] == -1 || (offsets[0] < offsets[1])); - SLJIT_ASSERT(offsets[2] == -1 || (offsets[0] < offsets[2] && offsets[1] > offsets[2])); - - chars[0] = chars[offsets[0] << 1]; - chars[1] = chars[(offsets[0] << 1) + 1]; - if (offsets[2] >= 0) - { - chars[2] = chars[offsets[2] << 1]; - chars[3] = chars[(offsets[2] << 1) + 1]; - } - if (offsets[1] >= 0) - { - chars[4] = chars[offsets[1] << 1]; - chars[5] = chars[(offsets[1] << 1) + 1]; - } - } - -max -= 1; -if (firstline) - { - SLJIT_ASSERT(common->first_line_end != 0); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->first_line_end); - OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); - OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); - quit = CMP(SLJIT_LESS_EQUAL, STR_END, 0, TMP1, 0); - OP1(SLJIT_MOV, STR_END, 0, TMP1, 0); - JUMPHERE(quit); - } -else - OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); - -#if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) -if (range_right >= 0) - OP1(SLJIT_MOV, RETURN_ADDR, 0, SLJIT_IMM, (sljit_sw)update_table); -#endif - -start = LABEL(); -quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); - -SLJIT_ASSERT(range_right >= 0 || offsets[0] >= 0); - -if (range_right >= 0) - { -#if defined COMPILE_PCRE8 || (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) - OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right)); -#else - OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right + 1) - 1); -#endif - -#if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) - OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM2(RETURN_ADDR, TMP1), 0); -#else - OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)update_table); -#endif - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); - CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, start); - } - -if (offsets[0] >= 0) - { - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(offsets[0])); - if (offsets[1] >= 0) - OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(offsets[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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[0], start); - if (offsets[2] >= 0) - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(offsets[2] - 1)); - - if (offsets[1] >= 0) - { - if (chars[5] != 0) - OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, chars[5]); - CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, chars[4], start); - } - - if (offsets[2] >= 0) - { - if (chars[3] != 0) - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, chars[3]); - CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[2], start); - } - OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - } - -JUMPHERE(quit); - -if (firstline) - { - if (range_right >= 0) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->first_line_end); - OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); - if (range_right >= 0) - { - quit = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP1, 0); - OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0); - JUMPHERE(quit); - } - } -else - OP2(SLJIT_ADD, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); -return TRUE; -} - -#undef MAX_N_CHARS -#undef MAX_N_BYTES - -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_SP), common->first_line_end); - } - -start = LABEL(); -quit = CMP(SLJIT_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_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_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_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_EQUAL); - found = JUMP(SLJIT_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_SP), common->first_line_end); - } - -if (common->nltype == NLTYPE_FIXED && common->newline > 255) - { - lastchar = CMP(SLJIT_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_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_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_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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, loop); - CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, loop); - - JUMPHERE(quit); - JUMPHERE(firstchar); - JUMPHERE(lastchar); - - if (firstline) - OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); - return; - } - -OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); -OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); -firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); -skip_char_back(common); - -loop = LABEL(); -common->ff_newline_shortcut = loop; - -read_char_range(common, common->nlmin, common->nlmax, TRUE); -lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); -if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF) - foundcr = CMP(SLJIT_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_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_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, BOOL invert, jump_list **backtracks); - -static SLJIT_INLINE void fast_forward_start_bits(compiler_common *common, pcre_uint8 *start_bits, BOOL firstline) -{ -DEFINE_COMPILER; -struct sljit_label *start; -struct sljit_jump *quit; -struct sljit_jump *found = NULL; -jump_list *matches = NULL; -#ifndef COMPILE_PCRE8 -struct sljit_jump *jump; -#endif - -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_SP), common->first_line_end); - } - -start = LABEL(); -quit = CMP(SLJIT_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, start_bits, (start_bits[31] & 0x80) != 0, TRUE, &matches)) - { -#ifndef COMPILE_PCRE8 - jump = CMP(SLJIT_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), (sljit_sw)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_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_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_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_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_SP), common->req_char_ptr); -OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, REQ_BYTE_MAX); -toolong = CMP(SLJIT_LESS, TMP1, 0, STR_END, 0); -alreadyfound = CMP(SLJIT_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_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_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_EQUAL, TMP2, 0, SLJIT_IMM, req_char | bit); - } - else - { - found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char); - foundoc = CMP(SLJIT_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_SP), 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_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_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_SP), 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_SP), LOCALS1, SLJIT_IMM, 0); -skipread = CMP(SLJIT_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_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_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_LESS_EQUAL); - JUMPHERE(jump); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP2, 0); - } -else -#endif - { -#ifndef COMPILE_PCRE8 - jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); -#elif defined SUPPORT_UTF - /* Here LOCALS1 has already been zeroed. */ - jump = NULL; - if (common->utf) - jump = CMP(SLJIT_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_SP), 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, READ_CHAR_MAX); - -/* 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_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_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_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_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_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_SP), LOCALS1); -sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0); -} - -static BOOL check_class_ranges(compiler_common *common, const pcre_uint8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks) -{ -DEFINE_COMPILER; -int ranges[MAX_RANGE_SIZE]; -pcre_uint8 bit, cbit, all; -int i, byte, length = 0; - -bit = bits[0] & 0x1; -/* All bits will be zero or one (since bit is zero or one). */ -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[length] = i; - length++; - bit = cbit; - all = -cbit; - } - i++; - } - } - -if (((bit == 0) && nclass) || ((bit == 1) && !nclass)) - { - if (length >= MAX_RANGE_SIZE) - return FALSE; - ranges[length] = 256; - length++; - } - -if (length < 0 || length > 4) - return FALSE; - -bit = bits[0] & 0x1; -if (invert) bit ^= 0x1; - -/* No character is accepted. */ -if (length == 0 && bit == 0) - add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); - -switch(length) - { - case 0: - /* When bit != 0, all characters are accepted. */ - return TRUE; - - case 1: - add_jump(compiler, backtracks, CMP(bit == 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); - return TRUE; - - case 2: - if (ranges[0] + 1 != ranges[1]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); - add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); - } - else - add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); - return TRUE; - - case 3: - if (bit != 0) - { - add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2])); - if (ranges[0] + 1 != ranges[1]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); - } - else - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); - return TRUE; - } - - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[0])); - if (ranges[1] + 1 != ranges[2]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1]); - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1])); - } - else - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1])); - return TRUE; - - case 4: - if ((ranges[1] - ranges[0]) == (ranges[3] - ranges[2]) - && (ranges[0] | (ranges[2] - ranges[0])) == ranges[2] - && is_powerof2(ranges[2] - ranges[0])) - { - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[0]); - if (ranges[2] + 1 != ranges[3]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2]); - add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2])); - } - else - add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2])); - return TRUE; - } - - if (bit != 0) - { - i = 0; - if (ranges[0] + 1 != ranges[1]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); - i = ranges[0]; - } - else - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); - - if (ranges[2] + 1 != ranges[3]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - i); - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2])); - } - else - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2] - i)); - return TRUE; - } - - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); - add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[0])); - if (ranges[1] + 1 != ranges[2]) - { - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]); - add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1])); - } - else - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); - return TRUE; - - default: - SLJIT_ASSERT_STOP(); - return 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_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_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_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_EQUAL); -OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20); -OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_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_EQUAL); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_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_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_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_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_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_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_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_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_SP), 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_NOT_EQUAL, CHAR1, 0, CHAR2, 0); -OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); -JUMPTO(SLJIT_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_SP), 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_SP), LOCALS0, CHAR1, 0); -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_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_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_NOT_EQUAL, CHAR1, 0, CHAR2, 0); -OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); -JUMPTO(SLJIT_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_SP), LOCALS0); -OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_SP), 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_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_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_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_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc | othercasebit)); - } - else - add_jump(compiler, backtracks, CMP(SLJIT_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_ADD, typereg, 0, typereg, 0, SLJIT_IMM, typeoffset - (value)); \ - else \ - OP2(SLJIT_SUB, typereg, 0, typereg, 0, SLJIT_IMM, (value) - typeoffset); \ - } \ - typeoffset = (value); - -#define SET_CHAR_OFFSET(value) \ - if ((value) != charoffset) \ - { \ - if ((value) < charoffset) \ - OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(charoffset - (value))); \ - else \ - OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)((value) - charoffset)); \ - } \ - 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[0] & XCL_NOT) == 0 ? &found : backtracks; -sljit_uw c, charoffset, max = 256, min = READ_CHAR_MAX; -struct sljit_jump *jump = NULL; -pcre_uchar *ccbegin; -int compares, invertcmp, numberofcmps; -#if defined SUPPORT_UTF && (defined COMPILE_PCRE8 || defined COMPILE_PCRE16) -BOOL utf = common->utf; -#endif - -#ifdef SUPPORT_UCP -BOOL needstype = FALSE, needsscript = FALSE, needschar = FALSE; -BOOL charsaved = FALSE; -int typereg = TMP1, scriptreg = TMP1; -const pcre_uint32 *other_cases; -sljit_uw typeoffset; -#endif - -/* Scanning the necessary info. */ -cc++; -ccbegin = cc; -compares = 0; -if (cc[-1] & XCL_MAP) - { - min = 0; - cc += 32 / sizeof(pcre_uchar); - } - -while (*cc != XCL_END) - { - compares++; - if (*cc == XCL_SINGLE) - { - cc ++; - GETCHARINCTEST(c, cc); - if (c > max) max = c; - if (c < min) min = c; -#ifdef SUPPORT_UCP - needschar = TRUE; -#endif - } - else if (*cc == XCL_RANGE) - { - cc ++; - GETCHARINCTEST(c, cc); - if (c < min) min = c; - GETCHARINCTEST(c, cc); - if (c > max) max = c; -#ifdef SUPPORT_UCP - needschar = TRUE; -#endif - } -#ifdef SUPPORT_UCP - else - { - SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); - cc++; - if (*cc == PT_CLIST) - { - other_cases = PRIV(ucd_caseless_sets) + cc[1]; - while (*other_cases != NOTACHAR) - { - if (*other_cases > max) max = *other_cases; - if (*other_cases < min) min = *other_cases; - other_cases++; - } - } - else - { - max = READ_CHAR_MAX; - min = 0; - } - - 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: - case PT_PXGRAPH: - case PT_PXPRINT: - case PT_PXPUNCT: - needstype = TRUE; - needschar = TRUE; - break; - - case PT_CLIST: - case PT_UCNC: - needschar = TRUE; - break; - - default: - SLJIT_ASSERT_STOP(); - break; - } - cc += 2; - } -#endif - } - -/* We are not necessary in utf mode even in 8 bit mode. */ -cc = ccbegin; -detect_partial_match(common, backtracks); -read_char_range(common, min, max, (cc[-1] & XCL_NOT) != 0); - -if ((cc[-1] & XCL_HASPROP) == 0) - { - if ((cc[-1] & XCL_MAP) != 0) - { - jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); - if (!check_class_ranges(common, (const pcre_uint8 *)cc, (((const pcre_uint8 *)cc)[31] & 0x80) != 0, TRUE, &found)) - { - 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, &found, JUMP(SLJIT_NOT_ZERO)); - } - - add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); - JUMPHERE(jump); - - cc += 32 / sizeof(pcre_uchar); - } - else - { - OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, min); - add_jump(compiler, (cc[-1] & XCL_NOT) == 0 ? backtracks : &found, CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, max - min)); - } - } -else if ((cc[-1] & XCL_MAP) != 0) - { - OP1(SLJIT_MOV, TMP3, 0, TMP1, 0); -#ifdef SUPPORT_UCP - charsaved = TRUE; -#endif - if (!check_class_ranges(common, (const pcre_uint8 *)cc, FALSE, TRUE, list)) - { -#ifdef COMPILE_PCRE8 - SLJIT_ASSERT(common->utf); -#endif - jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); - - 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_NOT_ZERO)); - - JUMPHERE(jump); - } - - OP1(SLJIT_MOV, TMP1, 0, TMP3, 0); - cc += 32 / sizeof(pcre_uchar); - } - -#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. */ -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 ++; - GETCHARINCTEST(c, cc); - - if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE)) - { - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); - OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_EQUAL); - numberofcmps++; - } - else if (numberofcmps > 0) - { - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); - OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - numberofcmps = 0; - } - else - { - jump = CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); - numberofcmps = 0; - } - } - else if (*cc == XCL_RANGE) - { - cc ++; - GETCHARINCTEST(c, cc); - SET_CHAR_OFFSET(c); - GETCHARINCTEST(c, cc); - - if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE)) - { - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); - OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_LESS_EQUAL); - numberofcmps++; - } - else if (numberofcmps > 0) - { - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); - OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL); - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - numberofcmps = 0; - } - else - { - jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(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_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_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_EQUAL); - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - break; - - case PT_GC: - c = PRIV(ucp_typerange)[(int)cc[1] * 2]; - SET_TYPE_OFFSET(c); - jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, PRIV(ucp_typerange)[(int)cc[1] * 2 + 1] - c); - break; - - case PT_PC: - jump = CMP(SLJIT_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, (int)cc[1] - typeoffset); - break; - - case PT_SC: - jump = CMP(SLJIT_EQUAL ^ invertcmp, scriptreg, 0, SLJIT_IMM, (int)cc[1]); - break; - - case PT_SPACE: - case PT_PXSPACE: - SET_CHAR_OFFSET(9); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd - 0x9); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x9); - OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x9); - OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - 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_LESS_EQUAL); - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - break; - - case PT_WORD: - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset)); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_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_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_LESS_EQUAL); - jump = JUMP(SLJIT_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_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_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(other_cases[0] - charoffset)); - OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - other_cases += 3; - } - else - { - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset)); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL); - } - - while (*other_cases != NOTACHAR) - { - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset)); - OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL); - } - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - break; - - case PT_UCNC: - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_DOLLAR_SIGN - charoffset)); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_COMMERCIAL_AT - charoffset)); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_GRAVE_ACCENT - charoffset)); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - SET_CHAR_OFFSET(0xa0); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(0xd7ff - charoffset)); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_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_GREATER_EQUAL); - jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); - break; - - case PT_PXGRAPH: - /* C and Z groups are the farthest two groups. */ - SET_TYPE_OFFSET(ucp_Ll); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER); - - jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll); - - /* In case of ucp_Cf, we overwrite the result. */ - SET_CHAR_OFFSET(0x2066); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x2066); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - JUMPHERE(jump); - jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0); - break; - - case PT_PXPRINT: - /* C and Z groups are the farthest two groups. */ - SET_TYPE_OFFSET(ucp_Ll); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Ll); - OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_NOT_EQUAL); - - jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll); - - /* In case of ucp_Cf, we overwrite the result. */ - SET_CHAR_OFFSET(0x2066); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL); - - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066); - OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL); - - JUMPHERE(jump); - jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0); - break; - - case PT_PXPUNCT: - SET_TYPE_OFFSET(ucp_Sc); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Sc); - OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL); - - SET_CHAR_OFFSET(0); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xff); - OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL); - - SET_TYPE_OFFSET(ucp_Pc); - OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ps - ucp_Pc); - OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL); - jump = JUMP(SLJIT_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 /* SUPPORT_UTF */ - -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_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_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_NOT_ZERO : SLJIT_ZERO)); - return cc; - - case OP_NOT_DIGIT: - case OP_DIGIT: - /* Digits are usually 0-9, so it is worth to optimize them. */ - detect_partial_match(common, backtracks); -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && is_char7_bitset((const pcre_uint8*)common->ctypes - cbit_length + cbit_digit, FALSE)) - read_char7_type(common, type == OP_NOT_DIGIT); - else -#endif - read_char8_type(common, type == OP_NOT_DIGIT); - /* Flip the starting bit in the negative case. */ - OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit); - add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_ZERO : SLJIT_NOT_ZERO)); - return cc; - - case OP_NOT_WHITESPACE: - case OP_WHITESPACE: - detect_partial_match(common, backtracks); -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && is_char7_bitset((const pcre_uint8*)common->ctypes - cbit_length + cbit_space, FALSE)) - read_char7_type(common, type == OP_NOT_WHITESPACE); - else -#endif - read_char8_type(common, type == OP_NOT_WHITESPACE); - OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space); - add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_ZERO : SLJIT_NOT_ZERO)); - return cc; - - case OP_NOT_WORDCHAR: - case OP_WORDCHAR: - detect_partial_match(common, backtracks); -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - if (common->utf && is_char7_bitset((const pcre_uint8*)common->ctypes - cbit_length + cbit_word, FALSE)) - read_char7_type(common, type == OP_NOT_WORDCHAR); - else -#endif - read_char8_type(common, type == OP_NOT_WORDCHAR); - OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word); - add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_ZERO : SLJIT_NOT_ZERO)); - return cc; - - case OP_ANY: - detect_partial_match(common, backtracks); - read_char_range(common, common->nlmin, common->nlmax, TRUE); - if (common->nltype == NLTYPE_FIXED && common->newline > 255) - { - jump[0] = CMP(SLJIT_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_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_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_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_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_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] = XCL_HASPROP; - 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_range(common, common->bsr_nlmin, common->bsr_nlmax, FALSE); - jump[0] = CMP(SLJIT_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_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_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_range(common, 0x9, 0x3000, type == OP_NOT_HSPACE); - add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL)); - add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO)); - return cc; - - case OP_NOT_VSPACE: - case OP_VSPACE: - detect_partial_match(common, backtracks); - read_char_range(common, 0xa, 0x2029, type == OP_NOT_VSPACE); - add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL)); - add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_NOT_ZERO : SLJIT_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_SP), LOCALS0, STACK_TOP, 0); - OP1(SLJIT_MOV_UB, STACK_TOP, 0, SLJIT_MEM2(TMP1, TMP2), 3); - - label = LABEL(); - jump[0] = CMP(SLJIT_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_NOT_ZERO, label); - - OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); - JUMPHERE(jump[0]); - OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); - - if (common->mode == JIT_PARTIAL_HARD_COMPILE) - { - jump[0] = CMP(SLJIT_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_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_NOT_EQUAL, TMP2, 0, STR_END, 0)); - else - { - jump[1] = CMP(SLJIT_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_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_NOT_EQUAL); - add_jump(compiler, backtracks, JUMP(SLJIT_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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); - add_jump(compiler, backtracks, CMP(SLJIT_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_NOT_EQUAL, TMP2, 0, STR_END, 0)); - add_jump(compiler, backtracks, CMP(SLJIT_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_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_GREATER); - add_jump(compiler, backtracks, JUMP(SLJIT_LESS)); - /* Equal. */ - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); - jump[3] = CMP(SLJIT_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_LESS, TMP2, 0, STR_END, 0)); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); - } - else - { - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, STR_PTR, 0); - read_char_range(common, common->nlmin, common->nlmax, TRUE); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0)); - add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL)); - add_jump(compiler, backtracks, JUMP(SLJIT_ZERO)); - OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), 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_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_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_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_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_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0)); - jump[0] = JUMP(SLJIT_JUMP); - JUMPHERE(jump[1]); - - add_jump(compiler, backtracks, CMP(SLJIT_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_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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff)); - } - else - { - skip_char_back(common); - read_char_range(common, common->nlmin, common->nlmax, TRUE); - 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_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_LESS, STR_PTR, 0, STR_END, 0)); - check_partial(common, FALSE); - } - return cc; - - case OP_DOLLM: - jump[1] = CMP(SLJIT_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_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_GREATER, TMP2, 0, STR_END, 0)); - else - { - jump[1] = CMP(SLJIT_LESS_EQUAL, TMP2, 0, STR_END, 0); - /* STR_PTR = STR_END - IN_UCHARS(1) */ - add_jump(compiler, backtracks, CMP(SLJIT_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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff)); - } - else - { - peek_char(common, common->nlmax); - 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_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); -#ifdef SUPPORT_UTF - if (common->utf) - { - GETCHAR(c, cc); - } - else -#endif - c = *cc; - - if (type == OP_CHAR || !char_has_othercase(common, cc)) - { - read_char_range(common, c, c, FALSE); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c)); - return cc + length; - } - oc = char_othercase(common, c); - read_char_range(common, c < oc ? c : oc, c > oc ? c : oc, FALSE); - bit = c ^ oc; - if (is_powerof2(bit)) - { - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit)); - return cc + length; - } - jump[0] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c); - add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, oc)); - JUMPHERE(jump[0]); - 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_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_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_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); - } - } - else -#endif /* SUPPORT_UTF */ - c = *cc; - - if (type == OP_NOT || !char_has_othercase(common, cc)) - { - read_char_range(common, c, c, TRUE); - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c)); - } - else - { - oc = char_othercase(common, c); - read_char_range(common, c < oc ? c : oc, c > oc ? c : oc, TRUE); - bit = c ^ oc; - if (is_powerof2(bit)) - { - OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit); - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit)); - } - else - { - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c)); - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, oc)); - } - } - return cc + length; - - case OP_CLASS: - case OP_NCLASS: - detect_partial_match(common, backtracks); - -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - bit = (common->utf && is_char7_bitset((const pcre_uint8 *)cc, type == OP_NCLASS)) ? 127 : 255; - read_char_range(common, 0, bit, type == OP_NCLASS); -#else - read_char_range(common, 0, 255, type == OP_NCLASS); -#endif - - if (check_class_ranges(common, (const pcre_uint8 *)cc, type == OP_NCLASS, FALSE, backtracks)) - return cc + 32 / sizeof(pcre_uchar); - -#if defined SUPPORT_UTF && defined COMPILE_PCRE8 - jump[0] = NULL; - if (common->utf) - { - jump[0] = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, bit); - if (type == OP_CLASS) - { - add_jump(compiler, backtracks, jump[0]); - jump[0] = NULL; - } - } -#elif !defined COMPILE_PCRE8 - jump[0] = CMP(SLJIT_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_ZERO)); - -#if defined SUPPORT_UTF || !defined COMPILE_PCRE8 - if (jump[0] != NULL) - JUMPHERE(jump[0]); -#endif - - 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_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_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_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_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); -} - -/* 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 void compile_dnref_search(compiler_common *common, pcre_uchar *cc, jump_list **backtracks) -{ -/* The OVECTOR offset goes to TMP2. */ -DEFINE_COMPILER; -int count = GET2(cc, 1 + IMM2_SIZE); -pcre_uchar *slot = common->name_table + GET2(cc, 1) * common->name_entry_size; -unsigned int offset; -jump_list *found = NULL; - -SLJIT_ASSERT(*cc == OP_DNREF || *cc == OP_DNREFI); - -OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); - -count--; -while (count-- > 0) - { - offset = GET2(slot, 0) << 1; - GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset)); - add_jump(compiler, &found, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0)); - slot += common->name_entry_size; - } - -offset = GET2(slot, 0) << 1; -GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset)); -if (backtracks != NULL && !common->jscript_compat) - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0)); - -set_jumps(found, LABEL()); -} - -static void compile_ref_matchingpath(compiler_common *common, pcre_uchar *cc, jump_list **backtracks, BOOL withchecks, BOOL emptyfail) -{ -DEFINE_COMPILER; -BOOL ref = (*cc == OP_REF || *cc == OP_REFI); -int offset = 0; -struct sljit_jump *jump = NULL; -struct sljit_jump *partial; -struct sljit_jump *nopartial; - -if (ref) - { - offset = GET2(cc, 1) << 1; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); - /* OVECTOR(1) contains the "string begin - 1" constant. */ - if (withchecks && !common->jscript_compat) - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); - } -else - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); - -#if defined SUPPORT_UTF && defined SUPPORT_UCP -if (common->utf && *cc == OP_REFI) - { - SLJIT_ASSERT(TMP1 == SLJIT_R0 && STACK_TOP == SLJIT_R1 && TMP2 == SLJIT_R2); - if (ref) - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - else - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); - - if (withchecks) - jump = CMP(SLJIT_EQUAL, TMP1, 0, TMP2, 0); - - /* Needed to save important temporary registers. */ - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0); - OP1(SLJIT_MOV, SLJIT_R1, 0, ARGUMENTS, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R1), 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_SP), LOCALS0); - if (common->mode == JIT_COMPILE) - add_jump(compiler, backtracks, CMP(SLJIT_LESS_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1)); - else - { - add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0)); - nopartial = CMP(SLJIT_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 */ - { - if (ref) - OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0); - else - OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0); - - if (withchecks) - jump = JUMP(SLJIT_ZERO); - - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); - partial = CMP(SLJIT_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_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_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_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); - } -} - -static SLJIT_INLINE pcre_uchar *compile_ref_iterator_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent) -{ -DEFINE_COMPILER; -BOOL ref = (*cc == OP_REF || *cc == OP_REFI); -backtrack_common *backtrack; -pcre_uchar type; -int offset = 0; -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); - -if (ref) - offset = GET2(cc, 1) << 1; -else - cc += IMM2_SIZE; -type = cc[1 + IMM2_SIZE]; - -SLJIT_COMPILE_ASSERT((OP_CRSTAR & 0x1) == 0, crstar_opcode_must_be_even); -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); - if (ref) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); - 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)); - /* Handles both invalid and empty cases. Since the minimum repeat, - is zero the invalid case is basically the same as an empty case. */ - if (ref) - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - else - { - compile_dnref_search(common, ccbegin, NULL); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); - } - /* Restore if not zero length. */ - OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); - } - else - { - allocate_stack(common, 1); - if (ref) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); - if (ref) - { - add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - } - else - { - compile_dnref_search(common, ccbegin, &backtrack->topbacktracks); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); - } - } - - if (min > 1 || max > 1) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, SLJIT_IMM, 0); - - label = LABEL(); - if (!ref) - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1); - compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, FALSE, FALSE); - - if (min > 1 || max > 1) - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0); - OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0); - if (min > 1) - CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, label); - if (max > 1) - { - jump = CMP(SLJIT_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, ref ? 2 : 3); -if (ref) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); -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) - { - /* Handles both invalid and empty cases. Since the minimum repeat, - is zero the invalid case is basically the same as an empty case. */ - if (ref) - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - else - { - compile_dnref_search(common, ccbegin, NULL); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); - } - /* Length is non-zero, we can match real repeats. */ - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); - jump = JUMP(SLJIT_JUMP); - } -else - { - if (ref) - { - add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - } - else - { - compile_dnref_search(common, ccbegin, &backtrack->topbacktracks); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0); - zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); - } - } - -BACKTRACK_AS(iterator_backtrack)->matchingpath = LABEL(); -if (max > 0) - add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, max)); - -if (!ref) - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(2)); -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_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_SP), OVECTOR(0)); - allocate_stack(common, 2); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_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)); - -SLJIT_ASSERT(common->capture_last_ptr != 0); -OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); -OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 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_SP), 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_SP), LOCALS0, STACK_TOP, 0); -OP2(SLJIT_SUB, SLJIT_R1, 0, STACK_TOP, 0, SLJIT_IMM, CALLOUT_ARG_SIZE); -GET_LOCAL_BASE(SLJIT_R2, 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_SP), 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_SIG_GREATER)); -if (common->forced_quit_label == NULL) - add_jump(compiler, &common->forced_quit, JUMP(SLJIT_SIG_LESS)); -else - JUMPTO(SLJIT_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_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_SP), private_data_ptr, STACK_TOP, 0); - allocate_stack(common, extrasize); - if (needs_control_head) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), private_data_ptr); - OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0); - if (needs_control_head) - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), private_data_ptr); - else - free_stack(common, extrasize); - if (needs_control_head) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw)); - if (needs_control_head) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0); - } - else - { - OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); - if (needs_control_head) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw)); - else - { - OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), 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_SP), 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_SP), private_data_ptr); - add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_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_SP), 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_SP), 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_SP), 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_SP), 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_SP), common->capture_last_ptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), OVECTOR(offset)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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 i, stacksize; -int repeat_ptr = 0, repeat_length = 0; -int repeat_type = 0, repeat_count = 0; -pcre_uchar *ccbegin; -pcre_uchar *matchingpath; -pcre_uchar *slot; -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 || opcode == OP_SCOND)) - has_alternatives = (*matchingpath == OP_RREF || *matchingpath == OP_DNRREF || *matchingpath == OP_FAIL) ? FALSE : TRUE; - -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_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); - } - else - { - if (opcode == OP_ONCE || opcode >= OP_SBRA) - { - jump = CMP(SLJIT_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_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); - } - else - { - /* Except when the whole stack frame must be saved. */ - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); - braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (BACKTRACK_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw)); - } - JUMPHERE(skip); - } - else - { - jump = CMP(SLJIT_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_SP), 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_SP), 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_SP), private_data_ptr); - } - else - { - if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), 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_SP), private_data_ptr, TMP2, 0); - stacksize++; - OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); - } - else - { - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), private_data_ptr); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr + sizeof(sljit_sw)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), private_data_ptr); - allocate_stack(common, 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), private_data_ptr); - allocate_stack(common, 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(matchingpath, 1) << 1), SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); - matchingpath += 1 + IMM2_SIZE; - } - else if (*matchingpath == OP_DNCREF) - { - SLJIT_ASSERT(has_alternatives); - - i = GET2(matchingpath, 1 + IMM2_SIZE); - slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size; - OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); - OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0); - slot += common->name_entry_size; - i--; - while (i-- > 0) - { - OP2(SLJIT_SUB, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0); - OP2(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, STR_PTR, 0); - slot += common->name_entry_size; - } - OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); - add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), JUMP(SLJIT_ZERO)); - matchingpath += 1 + 2 * IMM2_SIZE; - } - else if (*matchingpath == OP_RREF || *matchingpath == OP_DNRREF || *matchingpath == OP_FAIL) - { - /* Never has other case. */ - BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL; - SLJIT_ASSERT(!has_alternatives); - - if (*matchingpath == OP_FAIL) - stacksize = 0; - if (*matchingpath == OP_RREF) - { - 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 (stacksize != 0) - matchingpath += 1 + IMM2_SIZE; - } - else - { - if (common->currententry == NULL || common->currententry->start == 0) - stacksize = 0; - else - { - stacksize = GET2(matchingpath, 1 + IMM2_SIZE); - slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size; - i = (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE); - while (stacksize > 0) - { - if ((int)GET2(slot, 0) == i) - break; - slot += common->name_entry_size; - stacksize--; - } - } - - if (stacksize != 0) - matchingpath += 1 + 2 * IMM2_SIZE; - } - - /* The stacksize == 0 is a common "else" case. */ - if (stacksize == 0) - { - if (*cc == OP_ALT) - { - matchingpath = cc + 1 + LINK_SIZE; - cc += GET(cc, 1); - } - else - matchingpath = cc; - } - } - 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_SP), 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_SP), 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_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); - JUMPTO(SLJIT_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_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), 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_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) - { - count_match(common); - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); - JUMPTO(SLJIT_NOT_ZERO, rmax_label); - } -else if (repeat_type == OP_UPTO) - { - /* We need to preserve the counter. */ - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), private_data_ptr, STACK_TOP, 0); - - stack = 0; - if (offset != 0) - { - stack = 2; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), 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_SP), private_data_ptr); - if (needs_control_head) - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); - OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), private_data_ptr); - - if (offset != 0) - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0); - if (common->capture_last_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_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_SP), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw)); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0); - if (common->capture_last_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); - } - else - { - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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_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_SP), 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_SP), 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_SP), private_data_ptr); - OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); - } - else - { - OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), 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_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_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 *max, int *min, 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_NCLASS || *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 if (*opcode >= OP_CRPOSSTAR && *opcode <= OP_CRPOSQUERY) - { - *opcode -= OP_CRPOSSTAR - OP_POSSTAR; - if (end != NULL) - *end = cc + class_len; - } - else - { - SLJIT_ASSERT(*opcode == OP_CRRANGE || *opcode == OP_CRMINRANGE || *opcode == OP_CRPOSRANGE); - *max = GET2(cc, (class_len + IMM2_SIZE)); - *min = GET2(cc, class_len); - - if (*min == 0) - { - SLJIT_ASSERT(*max != 0); - *opcode = (*opcode == OP_CRRANGE) ? OP_UPTO : (*opcode == OP_CRMINRANGE ? OP_MINUPTO : OP_POSUPTO); - } - if (*max == *min) - *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) - { - *max = 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 max = -1, min = -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_SP); -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, &max, &min, &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_SP); - 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_SP), 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_SP), POSSESSIVE0); - OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); - if (opcode == OP_CRRANGE && min > 0) - CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, label); - if (opcode == OP_UPTO || (opcode == OP_CRRANGE && max > 0)) - jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, max); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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 && max == 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_LESS, TMP1, 0, SLJIT_IMM, max + 1, label); - } - set_jumps(nomatch, LABEL()); - if (opcode == OP_CRRANGE) - add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_LESS, base, offset1, SLJIT_IMM, min + 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, max); - 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_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_SP), POSSESSIVE1, SLJIT_IMM, max); - 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_SP), POSSESSIVE1, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, SLJIT_IMM, 1); - JUMPTO(SLJIT_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; - - case OP_CRPOSRANGE: - /* Combination of OP_EXACT and OP_POSSTAR or OP_POSUPTO */ - OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, min); - 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_NOT_ZERO, label); - - if (max != 0) - { - SLJIT_ASSERT(max - min > 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, SLJIT_IMM, max - min); - } - 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 (max == 0) - JUMPTO(SLJIT_JUMP, label); - else - { - OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, SLJIT_IMM, 1); - JUMPTO(SLJIT_NOT_ZERO, label); - } - 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 || !common->might_be_empty) - { - /* 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_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0))); -else - CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), 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_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_EQUAL, TMP2, 0, SLJIT_IMM, 0)); -else - CMPTO(SLJIT_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_NOT_EQUAL, TMP2, 0, STR_PTR, 0)); -else - CMPTO(SLJIT_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_SP), OVECTOR_PRIV(offset)); -offset <<= 1; -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); -if (!optimized_cbracket) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), common->control_head_ptr); -allocate_stack(common, size); -if (size > 3) - OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw)); -else - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), OVECTOR(0)); - allocate_stack(common, 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_CRPOSRANGE) - 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_CRPOSRANGE) - 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_CRPOSRANGE) - cc = compile_ref_iterator_matchingpath(common, cc, parent); - else - { - compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE); - cc += 1 + IMM2_SIZE; - } - break; - - case OP_DNREF: - case OP_DNREFI: - if (cc[1 + 2 * IMM2_SIZE] >= OP_CRSTAR && cc[1 + 2 * IMM2_SIZE] <= OP_CRPOSRANGE) - cc = compile_ref_iterator_matchingpath(common, cc, parent); - else - { - compile_dnref_search(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks); - compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE); - cc += 1 + 2 * IMM2_SIZE; - } - 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_SP), 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_SP), 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_SP), common->control_head_ptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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 max = -1, min = -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_SP); -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, &max, &min, 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_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath); - } - else - { - if (opcode == OP_UPTO) - min = 0; - if (opcode <= OP_PLUS) - { - OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); - jump = CMP(SLJIT_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_LESS_EQUAL, TMP1, 0, SLJIT_IMM, min + 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_LESS, TMP1, 0, SLJIT_IMM, min + 1, label); - - if (opcode == OP_CRMINRANGE && max == 0) - JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->matchingpath); - else - CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, max + 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_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_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: - case OP_CRPOSRANGE: - 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; -BOOL ref = (*cc == OP_REF || *cc == OP_REFI); -pcre_uchar type; - -type = cc[ref ? 1 + IMM2_SIZE : 1 + 2 * IMM2_SIZE]; - -if ((type & 0x1) == 0) - { - /* Maximize case. */ - set_jumps(current->topbacktracks, LABEL()); - OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); - free_stack(common, 1); - CMPTO(SLJIT_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_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->matchingpath); -set_jumps(current->topbacktracks, LABEL()); -free_stack(common, ref ? 2 : 3); -} - -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_SP), OVECTOR(0), TMP2, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_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_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_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); - } - -if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK) - { - OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr); - add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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, alt_count, alt_max; -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; -pcre_uchar bra = OP_BRA; -pcre_uchar ket; -assert_backtrack *assert; -sljit_uw *next_update_addr = NULL; -BOOL has_alternatives; -BOOL needs_control_head = FALSE; -struct sljit_jump *brazero = NULL; -struct sljit_jump *alt1 = NULL; -struct sljit_jump *alt2 = 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; - -alt_max = has_alternatives ? no_alternatives(ccbegin) : 0; - -/* 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_SP), repeat_ptr, TMP1, 0, SLJIT_IMM, 1); - else - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_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_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_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, CURRENT_AS(bracket_backtrack)->recursive_matchingpath); - else - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); - CMPTO(SLJIT_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_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), 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_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0); - } -else if (repeat_type == OP_EXACT) - { - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), OVECTOR(offset), TMP2, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), OVECTOR(offset), TMP1, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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); - - alt_max = 2; - alt1 = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw)); - } - } -else if (has_alternatives) - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); - free_stack(common, 1); - - if (alt_max > 4) - { - /* Table jump if alt_max is greater than 4. */ - next_update_addr = allocate_read_only_data(common, alt_max * sizeof(sljit_uw)); - if (SLJIT_UNLIKELY(next_update_addr == NULL)) - return; - sljit_emit_ijump(compiler, SLJIT_JUMP, SLJIT_MEM1(TMP1), (sljit_sw)next_update_addr); - add_label_addr(common, next_update_addr++); - } - else - { - if (alt_max == 4) - alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw)); - alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw)); - } - } - -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_SP), assert->private_data_ptr); - add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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) - { - alt_count = sizeof(sljit_uw); - 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_SP), 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_SP), 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, alt_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_SP), OVECTOR(offset + 1), STR_PTR, 0); - } - - JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->alternative_matchingpath); - - if (opcode != OP_ONCE) - { - if (alt_max > 4) - add_label_addr(common, next_update_addr++); - else - { - if (alt_count != 2 * sizeof(sljit_uw)) - { - JUMPHERE(alt1); - if (alt_max == 3 && alt_count == sizeof(sljit_uw)) - alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw)); - } - else - { - JUMPHERE(alt2); - if (alt_max == 4) - alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_uw)); - } - } - alt_count += sizeof(sljit_uw); - } - - COMPILE_BACKTRACKINGPATH(current->top); - if (current->topbacktracks) - set_jumps(current->topbacktracks, LABEL()); - SLJIT_ASSERT(!current->nextbacktracks); - } - while (*cc == OP_ALT); - - 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_SP), assert->private_data_ptr); - add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), OVECTOR(offset), TMP1, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), private_data_ptr, TMP1, 0); - } - } -else if (opcode == OP_SBRA || opcode == OP_SCOND) - { - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), private_data_ptr, TMP1, 0); - } - } - -if (repeat_type == OP_EXACT) - { - OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0); - CMPTO(SLJIT_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_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_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_SP), 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_SP), OVECTOR(offset + 1), TMP2, 0); - if (common->capture_last_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), 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_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(2 * sizeof(sljit_sw)), TMP1, 0, loop); - CMPTO(SLJIT_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_SP), common->control_head_ptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), LOCALS0); - - OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0); - add_jump(compiler, &common->reset_match, CMP(SLJIT_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_SP), 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_SP), 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: - case OP_DNREF: - case OP_DNREFI: - 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_SP), common->mark_ptr, TMP1, 0); - if (common->has_skip_arg) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), common->control_head_ptr, SLJIT_IMM, 0); -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_SP), 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_SP), common->recursive_head_ptr, TMP1, 0); - OP1(SLJIT_MOV, TMP1, 0, TMP3, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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; -sljit_uw total_length; -label_addr_list *label_addr; -struct sljit_label *mainloop_label = NULL; -struct sljit_label *continue_match_label; -struct sljit_label *empty_match_found_label = NULL; -struct sljit_label *empty_match_backtrack_label = NULL; -struct sljit_label *reset_match_label; -struct sljit_label *quit_label; -struct sljit_jump *jump; -struct sljit_jump *minlength_check_failed = NULL; -struct sljit_jump *reqbyte_notfound = NULL; -struct sljit_jump *empty_match = NULL; - -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->read_only_data_head = NULL; -common->fcc = tables + fcc_offset; -common->lcc = (sljit_sw)(tables + lcc_offset); -common->mode = mode; -common->might_be_empty = study->minlength == 0; -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; - } -common->nlmax = READ_CHAR_MAX; -common->nlmin = 0; -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->bsr_nlmax = READ_CHAR_MAX; -common->bsr_nlmin = 0; -common->endonly = (re->options & PCRE_DOLLAR_ENDONLY) != 0; -common->ctypes = (sljit_sw)(tables + ctypes_offset); -common->name_table = ((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 -if (common->utf) - { - if (common->nltype == NLTYPE_ANY) - common->nlmax = 0x2029; - else if (common->nltype == NLTYPE_ANYCRLF) - common->nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL; - else - { - /* We only care about the first newline character. */ - common->nlmax = common->newline & 0xff; - } - - if (common->nltype == NLTYPE_FIXED) - common->nlmin = common->newline & 0xff; - else - common->nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL; - - if (common->bsr_nltype == NLTYPE_ANY) - common->bsr_nlmax = 0x2029; - else - common->bsr_nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL; - common->bsr_nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL; - } -#endif /* SUPPORT_UTF */ -ccend = bracketend(common->start); - -/* 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, compiler->allocator_data); -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(*common->start == 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, common->start, ccend)) - { - SLJIT_FREE(common->optimized_cbracket, compiler->allocator_data); - 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); - -total_length = ccend - common->start; -common->private_data_ptrs = (sljit_si *)SLJIT_MALLOC(total_length * (sizeof(sljit_si) + (common->has_then ? 1 : 0)), compiler->allocator_data); -if (!common->private_data_ptrs) - { - SLJIT_FREE(common->optimized_cbracket, compiler->allocator_data); - return; - } -memset(common->private_data_ptrs, 0, total_length * sizeof(sljit_si)); - -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, compiler->allocator_data); - SLJIT_FREE(common->optimized_cbracket, compiler->allocator_data); - return; - } - -if (common->has_then) - { - common->then_offsets = (pcre_uint8 *)(common->private_data_ptrs + total_length); - memset(common->then_offsets, 0, total_length); - set_then_offsets(common, common->start, NULL); - } - -compiler = sljit_create_compiler(NULL); -if (!compiler) - { - SLJIT_FREE(common->optimized_cbracket, compiler->allocator_data); - SLJIT_FREE(common->private_data_ptrs, compiler->allocator_data); - return; - } -common->compiler = compiler; - -/* Main pcre_jit_exec entry. */ -sljit_emit_enter(compiler, 0, 1, 5, 5, 0, 0, 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_SP), common->req_char_ptr, SLJIT_R0, 0); - -OP1(SLJIT_MOV, ARGUMENTS, 0, SLJIT_S0, 0); -OP1(SLJIT_MOV, TMP1, 0, SLJIT_S0, 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_SP), LIMIT_MATCH, TMP1, 0); - -if (mode == JIT_PARTIAL_SOFT_COMPILE) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1); -if (common->mark_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0); -if (common->control_head_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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)) - ; - 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 (study != NULL && (study->flags & PCRE_STUDY_MAPPED) != 0) - fast_forward_start_bits(common, 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_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_SP), OVECTOR(0), STR_PTR, 0); -/* Copy the limit of allowed recursions. */ -OP1(SLJIT_MOV, COUNT_MATCH, 0, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH); -if (common->capture_last_ptr != 0) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), 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_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start + sizeof(sljit_sw), STR_PTR, 0); - JUMPHERE(jump); - } -else if (mode == JIT_PARTIAL_HARD_COMPILE) - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); - -compile_matchingpath(common, common->start, ccend, &rootbacktrack); -if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) - { - sljit_free_compiler(compiler); - SLJIT_FREE(common->optimized_cbracket, compiler->allocator_data); - SLJIT_FREE(common->private_data_ptrs, compiler->allocator_data); - free_read_only_data(common->read_only_data_head, compiler->allocator_data); - return; - } - -if (common->might_be_empty) - { - empty_match = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), 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); - } - -if (common->might_be_empty) - 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, compiler->allocator_data); - SLJIT_FREE(common->private_data_ptrs, compiler->allocator_data); - free_read_only_data(common->read_only_data_head, compiler->allocator_data); - 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_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1); - OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_SP), common->first_line_end); - } - -OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr); - -if ((re->options & PCRE_ANCHORED) == 0) - { - if (common->ff_newline_shortcut != NULL) - { - if ((re->options & PCRE_FIRSTLINE) == 0) - CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, common->ff_newline_shortcut); - /* There cannot be more newlines here. */ - } - else - { - if ((re->options & PCRE_FIRSTLINE) == 0) - CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, mainloop_label); - else - CMPTO(SLJIT_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_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), 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); - -if (common->might_be_empty) - { - 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_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_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_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, compiler->allocator_data); - SLJIT_FREE(common->private_data_ptrs, compiler->allocator_data); - free_read_only_data(common->read_only_data_head, compiler->allocator_data); - 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_SP), LOCALS0); -OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), 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_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_SP), LOCALS1); -sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_SP), 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_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 -#ifdef COMPILE_PCRE8 -if (common->utfreadchar != NULL) - { - set_jumps(common->utfreadchar, LABEL()); - do_utfreadchar(common); - } -if (common->utfreadchar16 != NULL) - { - set_jumps(common->utfreadchar16, LABEL()); - do_utfreadchar16(common); - } -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, compiler->allocator_data); -SLJIT_FREE(common->private_data_ptrs, compiler->allocator_data); - -executable_func = sljit_generate_code(compiler); -executable_size = sljit_get_generated_code_size(compiler); -label_addr = common->label_addrs; -while (label_addr != NULL) - { - *label_addr->update_addr = sljit_get_label_addr(label_addr->label); - label_addr = label_addr->next; - } -sljit_free_compiler(compiler); -if (executable_func == NULL) - { - free_read_only_data(common->read_only_data_head, compiler->allocator_data); - 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), compiler->allocator_data); - if (functions == NULL) - { - /* This case is highly unlikely since we just recently - freed a lot of memory. Not impossible though. */ - sljit_free_code(executable_func); - free_read_only_data(common->read_only_data_head, compiler->allocator_data); - 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->read_only_data_heads[mode] = common->read_only_data_head; -functions->executable_sizes[mode] = executable_size; -} - -static SLJIT_NOINLINE 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]); - free_read_only_data(functions->read_only_data_heads[i], NULL); - } -SLJIT_FREE(functions, compiler->allocator_data); -} - -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, 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 -{ -sljit_free_stack((struct sljit_stack *)stack, NULL); -} - -#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; - } -} - -#if defined COMPILE_PCRE8 -PCRE_EXP_DECL void -pcre_jit_free_unused_memory(void) -#elif defined COMPILE_PCRE16 -PCRE_EXP_DECL void -pcre16_jit_free_unused_memory(void) -#elif defined COMPILE_PCRE32 -PCRE_EXP_DECL void -pcre32_jit_free_unused_memory(void) -#endif -{ -sljit_free_unused_memory_exec(); -} - -#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; -} - -#if defined COMPILE_PCRE8 -PCRE_EXP_DECL void -pcre_jit_free_unused_memory(void) -#elif defined COMPILE_PCRE16 -PCRE_EXP_DECL void -pcre16_jit_free_unused_memory(void) -#elif defined COMPILE_PCRE32 -PCRE_EXP_DECL void -pcre32_jit_free_unused_memory(void) -#endif -{ -} - -#endif - -/* End of pcre_jit_compile.c */ |