/[pcre]/code/tags/pcre-8.37/pcre_jit_compile.c
ViewVC logotype

Diff of /code/tags/pcre-8.37/pcre_jit_compile.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 999 by zherczeg, Mon Aug 6 07:36:49 2012 UTC revision 1530 by zherczeg, Thu Mar 5 08:53:37 2015 UTC
# Line 6  Line 6 
6  and semantics are as close as possible to those of the Perl 5 language.  and semantics are as close as possible to those of the Perl 5 language.
7    
8                         Written by Philip Hazel                         Written by Philip Hazel
9             Copyright (c) 1997-2012 University of Cambridge             Copyright (c) 1997-2013 University of Cambridge
10    
11    The machine code generator part (this module) was written by Zoltan Herczeg    The machine code generator part (this module) was written by Zoltan Herczeg
12                        Copyright (c) 2010-2012                        Copyright (c) 2010-2013
13    
14  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
15  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 46  POSSIBILITY OF SUCH DAMAGE. Line 46  POSSIBILITY OF SUCH DAMAGE.
46    
47  #include "pcre_internal.h"  #include "pcre_internal.h"
48    
49  #ifdef SUPPORT_JIT  #if defined SUPPORT_JIT
50    
51  /* All-in-one: Since we use the JIT compiler only from here,  /* All-in-one: Since we use the JIT compiler only from here,
52  we just include it. This way we don't need to touch the build  we just include it. This way we don't need to touch the build
53  system files. */  system files. */
54    
55  #define SLJIT_MALLOC(size) (PUBL(malloc))(size)  #define SLJIT_MALLOC(size, allocator_data) (PUBL(malloc))(size)
56  #define SLJIT_FREE(ptr) (PUBL(free))(ptr)  #define SLJIT_FREE(ptr, allocator_data) (PUBL(free))(ptr)
57  #define SLJIT_CONFIG_AUTO 1  #define SLJIT_CONFIG_AUTO 1
58  #define SLJIT_CONFIG_STATIC 1  #define SLJIT_CONFIG_STATIC 1
59  #define SLJIT_VERBOSE 0  #define SLJIT_VERBOSE 0
# Line 65  system files. */ Line 65  system files. */
65  #error Unsupported architecture  #error Unsupported architecture
66  #endif  #endif
67    
68  /* Allocate memory on the stack. Fast, but limited size. */  /* Defines for debugging purposes. */
 #define LOCAL_SPACE_SIZE 32768  
69    
70    /* 1 - Use unoptimized capturing brackets.
71       2 - Enable capture_last_ptr (includes option 1). */
72    /* #define DEBUG_FORCE_UNOPTIMIZED_CBRAS 2 */
73    
74    /* 1 - Always have a control head. */
75    /* #define DEBUG_FORCE_CONTROL_HEAD 1 */
76    
77    /* Allocate memory for the regex stack on the real machine stack.
78    Fast, but limited size. */
79    #define MACHINE_STACK_SIZE 32768
80    
81    /* Growth rate for stack allocated by the OS. Should be the multiply
82    of page size. */
83  #define STACK_GROWTH_RATE 8192  #define STACK_GROWTH_RATE 8192
84    
85  /* Enable to check that the allocation could destroy temporaries. */  /* Enable to check that the allocation could destroy temporaries. */
# Line 134  The generated code will be the following Line 146  The generated code will be the following
146  /*  /*
147  Saved stack frames:  Saved stack frames:
148    
149  Atomic blocks and asserts require reloading the values of local variables  Atomic blocks and asserts require reloading the values of private data
150  when the backtrack mechanism performed. Because of OP_RECURSE, the locals  when the backtrack mechanism performed. Because of OP_RECURSE, the data
151  are not necessarly known in compile time, thus we need a dynamic restore  are not necessarly known in compile time, thus we need a dynamic restore
152  mechanism.  mechanism.
153    
154  The stack frames are stored in a chain list, and have the following format:  The stack frames are stored in a chain list, and have the following format:
155  ([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ]  ([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ]
156    
157  Thus we can restore the locals to a particular point in the stack.  Thus we can restore the private data to a particular point in the stack.
158  */  */
159    
160  typedef struct jit_arguments {  typedef struct jit_arguments {
# Line 154  typedef struct jit_arguments { Line 166  typedef struct jit_arguments {
166    int *offsets;    int *offsets;
167    pcre_uchar *uchar_ptr;    pcre_uchar *uchar_ptr;
168    pcre_uchar *mark_ptr;    pcre_uchar *mark_ptr;
169      void *callout_data;
170    /* Everything else after. */    /* Everything else after. */
171    int offsetcount;    pcre_uint32 limit_match;
172    int calllimit;    int real_offset_count;
173      int offset_count;
174    pcre_uint8 notbol;    pcre_uint8 notbol;
175    pcre_uint8 noteol;    pcre_uint8 noteol;
176    pcre_uint8 notempty;    pcre_uint8 notempty;
# Line 165  typedef struct jit_arguments { Line 179  typedef struct jit_arguments {
179    
180  typedef struct executable_functions {  typedef struct executable_functions {
181    void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES];    void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES];
182      void *read_only_data_heads[JIT_NUMBER_OF_COMPILE_MODES];
183      sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];
184    PUBL(jit_callback) callback;    PUBL(jit_callback) callback;
185    void *userdata;    void *userdata;
186    sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];    pcre_uint32 top_bracket;
187      pcre_uint32 limit_match;
188  } executable_functions;  } executable_functions;
189    
190  typedef struct jump_list {  typedef struct jump_list {
# Line 175  typedef struct jump_list { Line 192  typedef struct jump_list {
192    struct jump_list *next;    struct jump_list *next;
193  } jump_list;  } jump_list;
194    
 enum stub_types { stack_alloc };  
   
195  typedef struct stub_list {  typedef struct stub_list {
   enum stub_types type;  
   int data;  
196    struct sljit_jump *start;    struct sljit_jump *start;
197    struct sljit_label *quit;    struct sljit_label *quit;
198    struct stub_list *next;    struct stub_list *next;
199  } stub_list;  } stub_list;
200    
201    typedef struct label_addr_list {
202      struct sljit_label *label;
203      sljit_uw *update_addr;
204      struct label_addr_list *next;
205    } label_addr_list;
206    
207    enum frame_types {
208      no_frame = -1,
209      no_stack = -2
210    };
211    
212    enum control_types {
213      type_mark = 0,
214      type_then_trap = 1
215    };
216    
217  typedef int (SLJIT_CALL *jit_function)(jit_arguments *args);  typedef int (SLJIT_CALL *jit_function)(jit_arguments *args);
218    
219  /* The following structure is the key data type for the recursive  /* The following structure is the key data type for the recursive
220  code generator. It is allocated by compile_matchingpath, and contains  code generator. It is allocated by compile_matchingpath, and contains
221  the aguments for compile_backtrackingpath. Must be the first member  the arguments for compile_backtrackingpath. Must be the first member
222  of its descendants. */  of its descendants. */
223  typedef struct backtrack_common {  typedef struct backtrack_common {
224    /* Concatenation stack. */    /* Concatenation stack. */
# Line 205  typedef struct backtrack_common { Line 234  typedef struct backtrack_common {
234  typedef struct assert_backtrack {  typedef struct assert_backtrack {
235    backtrack_common common;    backtrack_common common;
236    jump_list *condfailed;    jump_list *condfailed;
237    /* Less than 0 (-1) if a frame is not needed. */    /* Less than 0 if a frame is not needed. */
238    int framesize;    int framesize;
239    /* Points to our private memory word on the stack. */    /* Points to our private memory word on the stack. */
240    int localptr;    int private_data_ptr;
241    /* For iterators. */    /* For iterators. */
242    struct sljit_label *matchingpath;    struct sljit_label *matchingpath;
243  } assert_backtrack;  } assert_backtrack;
# Line 226  typedef struct bracket_backtrack { Line 255  typedef struct bracket_backtrack {
255      /* Both for OP_COND, OP_SCOND. */      /* Both for OP_COND, OP_SCOND. */
256      jump_list *condfailed;      jump_list *condfailed;
257      assert_backtrack *assert;      assert_backtrack *assert;
258      /* For OP_ONCE. -1 if not needed. */      /* For OP_ONCE. Less than 0 if not needed. */
259      int framesize;      int framesize;
260    } u;    } u;
261    /* Points to our private memory word on the stack. */    /* Points to our private memory word on the stack. */
262    int localptr;    int private_data_ptr;
263  } bracket_backtrack;  } bracket_backtrack;
264    
265  typedef struct bracketpos_backtrack {  typedef struct bracketpos_backtrack {
266    backtrack_common common;    backtrack_common common;
267    /* Points to our private memory word on the stack. */    /* Points to our private memory word on the stack. */
268    int localptr;    int private_data_ptr;
269    /* Reverting stack is needed. */    /* Reverting stack is needed. */
270    int framesize;    int framesize;
271    /* Allocated stack size. */    /* Allocated stack size. */
# Line 261  typedef struct recurse_entry { Line 290  typedef struct recurse_entry {
290    /* Collects the calls until the function is not created. */    /* Collects the calls until the function is not created. */
291    jump_list *calls;    jump_list *calls;
292    /* Points to the starting opcode. */    /* Points to the starting opcode. */
293    int start;    sljit_sw start;
294  } recurse_entry;  } recurse_entry;
295    
296  typedef struct recurse_backtrack {  typedef struct recurse_backtrack {
297    backtrack_common common;    backtrack_common common;
298      BOOL inlined_pattern;
299  } recurse_backtrack;  } recurse_backtrack;
300    
301  #define MAX_RANGE_SIZE 6  #define OP_THEN_TRAP OP_TABLE_LENGTH
302    
303    typedef struct then_trap_backtrack {
304      backtrack_common common;
305      /* If then_trap is not NULL, this structure contains the real
306      then_trap for the backtracking path. */
307      struct then_trap_backtrack *then_trap;
308      /* Points to the starting opcode. */
309      sljit_sw start;
310      /* Exit point for the then opcodes of this alternative. */
311      jump_list *quit;
312      /* Frame size of the current alternative. */
313      int framesize;
314    } then_trap_backtrack;
315    
316    #define MAX_RANGE_SIZE 4
317    
318  typedef struct compiler_common {  typedef struct compiler_common {
319      /* The sljit ceneric compiler. */
320    struct sljit_compiler *compiler;    struct sljit_compiler *compiler;
321      /* First byte code. */
322    pcre_uchar *start;    pcre_uchar *start;
323      /* Maps private data offset to each opcode. */
324    /* Opcode local area direct map. */    sljit_si *private_data_ptrs;
325    int *localptrs;    /* Chain list of read-only data ptrs. */
326    int cbraptr;    void *read_only_data_head;
327    /* OVector starting point. Must be divisible by 2. */    /* Tells whether the capturing bracket is optimized. */
328      pcre_uint8 *optimized_cbracket;
329      /* Tells whether the starting offset is a target of then. */
330      pcre_uint8 *then_offsets;
331      /* Current position where a THEN must jump. */
332      then_trap_backtrack *then_trap;
333      /* Starting offset of private data for capturing brackets. */
334      int cbra_ptr;
335      /* Output vector starting point. Must be divisible by 2. */
336    int ovector_start;    int ovector_start;
337    /* Last known position of the requested byte. */    /* Last known position of the requested byte. */
338    int req_char_ptr;    int req_char_ptr;
339    /* Head of the last recursion. */    /* Head of the last recursion. */
340    int recursive_head;    int recursive_head_ptr;
341    /* First inspected character for partial matching. */    /* First inspected character for partial matching. */
342    int start_used_ptr;    int start_used_ptr;
343    /* Starting pointer for partial soft matches. */    /* Starting pointer for partial soft matches. */
# Line 291  typedef struct compiler_common { Line 346  typedef struct compiler_common {
346    int first_line_end;    int first_line_end;
347    /* Points to the marked string. */    /* Points to the marked string. */
348    int mark_ptr;    int mark_ptr;
349      /* Recursive control verb management chain. */
350      int control_head_ptr;
351      /* Points to the last matched capture block index. */
352      int capture_last_ptr;
353      /* Points to the starting position of the current match. */
354      int start_ptr;
355    
356    /* Flipped and lower case tables. */    /* Flipped and lower case tables. */
357    const pcre_uint8 *fcc;    const pcre_uint8 *fcc;
358    sljit_w lcc;    sljit_sw lcc;
359    /* Mode can be PCRE_STUDY_JIT_COMPILE and others. */    /* Mode can be PCRE_STUDY_JIT_COMPILE and others. */
360    int mode;    int mode;
361      /* TRUE, when minlength is greater than 0. */
362      BOOL might_be_empty;
363      /* \K is found in the pattern. */
364      BOOL has_set_som;
365      /* (*SKIP:arg) is found in the pattern. */
366      BOOL has_skip_arg;
367      /* (*THEN) is found in the pattern. */
368      BOOL has_then;
369      /* Needs to know the start position anytime. */
370      BOOL needs_start_ptr;
371      /* Currently in recurse or negative assert. */
372      BOOL local_exit;
373      /* Currently in a positive assert. */
374      BOOL positive_assert;
375    /* Newline control. */    /* Newline control. */
376    int nltype;    int nltype;
377      pcre_uint32 nlmax;
378      pcre_uint32 nlmin;
379    int newline;    int newline;
380    int bsr_nltype;    int bsr_nltype;
381      pcre_uint32 bsr_nlmax;
382      pcre_uint32 bsr_nlmin;
383    /* Dollar endonly. */    /* Dollar endonly. */
384    int endonly;    int endonly;
   BOOL has_set_som;  
385    /* Tables. */    /* Tables. */
386    sljit_w ctypes;    sljit_sw ctypes;
   int digits[2 + MAX_RANGE_SIZE];  
387    /* Named capturing brackets. */    /* Named capturing brackets. */
388    sljit_uw name_table;    pcre_uchar *name_table;
389    sljit_w name_count;    sljit_sw name_count;
390    sljit_w name_entry_size;    sljit_sw name_entry_size;
391    
392    /* Labels and jump lists. */    /* Labels and jump lists. */
393    struct sljit_label *partialmatchlabel;    struct sljit_label *partialmatchlabel;
394    struct sljit_label *quitlabel;    struct sljit_label *quit_label;
395    struct sljit_label *acceptlabel;    struct sljit_label *forced_quit_label;
396      struct sljit_label *accept_label;
397      struct sljit_label *ff_newline_shortcut;
398    stub_list *stubs;    stub_list *stubs;
399      label_addr_list *label_addrs;
400    recurse_entry *entries;    recurse_entry *entries;
401    recurse_entry *currententry;    recurse_entry *currententry;
402    jump_list *partialmatch;    jump_list *partialmatch;
403    jump_list *quit;    jump_list *quit;
404      jump_list *positive_assert_quit;
405      jump_list *forced_quit;
406    jump_list *accept;    jump_list *accept;
407    jump_list *calllimit;    jump_list *calllimit;
408    jump_list *stackalloc;    jump_list *stackalloc;
# Line 331  typedef struct compiler_common { Line 413  typedef struct compiler_common {
413    jump_list *vspace;    jump_list *vspace;
414    jump_list *casefulcmp;    jump_list *casefulcmp;
415    jump_list *caselesscmp;    jump_list *caselesscmp;
416      jump_list *reset_match;
417    BOOL jscript_compat;    BOOL jscript_compat;
418  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
419    BOOL utf;    BOOL utf;
420  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
421    BOOL use_ucp;    BOOL use_ucp;
422  #endif  #endif
   jump_list *utfreadchar;  
423  #ifdef COMPILE_PCRE8  #ifdef COMPILE_PCRE8
424      jump_list *utfreadchar;
425      jump_list *utfreadchar16;
426    jump_list *utfreadtype8;    jump_list *utfreadtype8;
427  #endif  #endif
428  #endif /* SUPPORT_UTF */  #endif /* SUPPORT_UTF */
# Line 355  typedef struct compare_context { Line 439  typedef struct compare_context {
439  #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED  #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
440    int ucharptr;    int ucharptr;
441    union {    union {
442      sljit_i asint;      sljit_si asint;
443      sljit_uh asushort;      sljit_uh asushort;
444  #ifdef COMPILE_PCRE8  #if defined COMPILE_PCRE8
445      sljit_ub asbyte;      sljit_ub asbyte;
446      sljit_ub asuchars[4];      sljit_ub asuchars[4];
447  #else  #elif defined COMPILE_PCRE16
 #ifdef COMPILE_PCRE16  
448      sljit_uh asuchars[2];      sljit_uh asuchars[2];
449  #endif  #elif defined COMPILE_PCRE32
450        sljit_ui asuchars[1];
451  #endif  #endif
452    } c;    } c;
453    union {    union {
454      sljit_i asint;      sljit_si asint;
455      sljit_uh asushort;      sljit_uh asushort;
456  #ifdef COMPILE_PCRE8  #if defined COMPILE_PCRE8
457      sljit_ub asbyte;      sljit_ub asbyte;
458      sljit_ub asuchars[4];      sljit_ub asuchars[4];
459  #else  #elif defined COMPILE_PCRE16
 #ifdef COMPILE_PCRE16  
460      sljit_uh asuchars[2];      sljit_uh asuchars[2];
461  #endif  #elif defined COMPILE_PCRE32
462        sljit_ui asuchars[1];
463  #endif  #endif
464    } oc;    } oc;
465  #endif  #endif
466  } compare_context;  } compare_context;
467    
 enum {  
   frame_end = 0,  
   frame_setstrbegin = -1,  
   frame_setmark = -2  
 };  
   
468  /* Undefine sljit macros. */  /* Undefine sljit macros. */
469  #undef CMP  #undef CMP
470    
471  /* Used for accessing the elements of the stack. */  /* Used for accessing the elements of the stack. */
472  #define STACK(i)      ((-(i) - 1) * (int)sizeof(sljit_w))  #define STACK(i)      ((-(i) - 1) * (int)sizeof(sljit_sw))
473    
474  #define TMP1          SLJIT_TEMPORARY_REG1  #define TMP1          SLJIT_R0
475  #define TMP2          SLJIT_TEMPORARY_REG3  #define TMP2          SLJIT_R2
476  #define TMP3          SLJIT_TEMPORARY_EREG2  #define TMP3          SLJIT_R3
477  #define STR_PTR       SLJIT_SAVED_REG1  #define STR_PTR       SLJIT_S0
478  #define STR_END       SLJIT_SAVED_REG2  #define STR_END       SLJIT_S1
479  #define STACK_TOP     SLJIT_TEMPORARY_REG2  #define STACK_TOP     SLJIT_R1
480  #define STACK_LIMIT   SLJIT_SAVED_REG3  #define STACK_LIMIT   SLJIT_S2
481  #define ARGUMENTS     SLJIT_SAVED_EREG1  #define COUNT_MATCH   SLJIT_S3
482  #define CALL_COUNT    SLJIT_SAVED_EREG2  #define ARGUMENTS     SLJIT_S4
483  #define RETURN_ADDR   SLJIT_TEMPORARY_EREG1  #define RETURN_ADDR   SLJIT_R4
484    
485  /* Locals layout. */  /* Local space layout. */
486  /* These two locals can be used by the current opcode. */  /* These two locals can be used by the current opcode. */
487  #define LOCALS0          (0 * sizeof(sljit_w))  #define LOCALS0          (0 * sizeof(sljit_sw))
488  #define LOCALS1          (1 * sizeof(sljit_w))  #define LOCALS1          (1 * sizeof(sljit_sw))
489  /* Two local variables for possessive quantifiers (char1 cannot use them). */  /* Two local variables for possessive quantifiers (char1 cannot use them). */
490  #define POSSESSIVE0      (2 * sizeof(sljit_w))  #define POSSESSIVE0      (2 * sizeof(sljit_sw))
491  #define POSSESSIVE1      (3 * sizeof(sljit_w))  #define POSSESSIVE1      (3 * sizeof(sljit_sw))
492  /* Max limit of recursions. */  /* Max limit of recursions. */
493  #define CALL_LIMIT       (4 * sizeof(sljit_w))  #define LIMIT_MATCH      (4 * sizeof(sljit_sw))
494  /* The output vector is stored on the stack, and contains pointers  /* The output vector is stored on the stack, and contains pointers
495  to characters. The vector data is divided into two groups: the first  to characters. The vector data is divided into two groups: the first
496  group contains the start / end character pointers, and the second is  group contains the start / end character pointers, and the second is
497  the start pointers when the end of the capturing group has not yet reached. */  the start pointers when the end of the capturing group has not yet reached. */
498  #define OVECTOR_START    (common->ovector_start)  #define OVECTOR_START    (common->ovector_start)
499  #define OVECTOR(i)       (OVECTOR_START + (i) * sizeof(sljit_w))  #define OVECTOR(i)       (OVECTOR_START + (i) * (sljit_sw)sizeof(sljit_sw))
500  #define OVECTOR_PRIV(i)  (common->cbraptr + (i) * sizeof(sljit_w))  #define OVECTOR_PRIV(i)  (common->cbra_ptr + (i) * (sljit_sw)sizeof(sljit_sw))
501  #define PRIV_DATA(cc)    (common->localptrs[(cc) - common->start])  #define PRIVATE_DATA(cc) (common->private_data_ptrs[(cc) - common->start])
502    
503  #ifdef COMPILE_PCRE8  #if defined COMPILE_PCRE8
504  #define MOV_UCHAR  SLJIT_MOV_UB  #define MOV_UCHAR  SLJIT_MOV_UB
505  #define MOVU_UCHAR SLJIT_MOVU_UB  #define MOVU_UCHAR SLJIT_MOVU_UB
506  #else  #elif defined COMPILE_PCRE16
 #ifdef COMPILE_PCRE16  
507  #define MOV_UCHAR  SLJIT_MOV_UH  #define MOV_UCHAR  SLJIT_MOV_UH
508  #define MOVU_UCHAR SLJIT_MOVU_UH  #define MOVU_UCHAR SLJIT_MOVU_UH
509    #elif defined COMPILE_PCRE32
510    #define MOV_UCHAR  SLJIT_MOV_UI
511    #define MOVU_UCHAR SLJIT_MOVU_UI
512  #else  #else
513  #error Unsupported compiling mode  #error Unsupported compiling mode
514  #endif  #endif
 #endif  
515    
516  /* Shortcuts. */  /* Shortcuts. */
517  #define DEFINE_COMPILER \  #define DEFINE_COMPILER \
# Line 449  the start pointers when the end of the c Line 528  the start pointers when the end of the c
528    sljit_set_label(sljit_emit_jump(compiler, (type)), (label))    sljit_set_label(sljit_emit_jump(compiler, (type)), (label))
529  #define JUMPHERE(jump) \  #define JUMPHERE(jump) \
530    sljit_set_label((jump), sljit_emit_label(compiler))    sljit_set_label((jump), sljit_emit_label(compiler))
531    #define SET_LABEL(jump, label) \
532      sljit_set_label((jump), (label))
533  #define CMP(type, src1, src1w, src2, src2w) \  #define CMP(type, src1, src1w, src2, src2w) \
534    sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))    sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))
535  #define CMPTO(type, src1, src1w, src2, src2w, label) \  #define CMPTO(type, src1, src1w, src2, src2w, label) \
536    sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))    sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))
537  #define COND_VALUE(op, dst, dstw, type) \  #define OP_FLAGS(op, dst, dstw, src, srcw, type) \
538    sljit_emit_cond_value(compiler, (op), (dst), (dstw), (type))    sljit_emit_op_flags(compiler, (op), (dst), (dstw), (src), (srcw), (type))
539  #define GET_LOCAL_BASE(dst, dstw, offset) \  #define GET_LOCAL_BASE(dst, dstw, offset) \
540    sljit_get_local_base(compiler, (dst), (dstw), (offset))    sljit_get_local_base(compiler, (dst), (dstw), (offset))
541    
542  static pcre_uchar* bracketend(pcre_uchar* cc)  #define READ_CHAR_MAX 0x7fffffff
543    
544    static pcre_uchar *bracketend(pcre_uchar *cc)
545  {  {
546  SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));  SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
547  do cc += GET(cc, 1); while (*cc == OP_ALT);  do cc += GET(cc, 1); while (*cc == OP_ALT);
# Line 467  cc += 1 + LINK_SIZE; Line 550  cc += 1 + LINK_SIZE;
550  return cc;  return cc;
551  }  }
552    
553    static int no_alternatives(pcre_uchar *cc)
554    {
555    int count = 0;
556    SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
557    do
558      {
559      cc += GET(cc, 1);
560      count++;
561      }
562    while (*cc == OP_ALT);
563    SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS);
564    return count;
565    }
566    
567    static int ones_in_half_byte[16] = {
568      /* 0 */ 0, 1, 1, 2, /* 4 */ 1, 2, 2, 3,
569      /* 8 */ 1, 2, 2, 3, /* 12 */ 2, 3, 3, 4
570    };
571    
572  /* Functions whose might need modification for all new supported opcodes:  /* Functions whose might need modification for all new supported opcodes:
573   next_opcode   next_opcode
574   get_localspace   check_opcode_types
575   set_localptrs   set_private_data_ptrs
576   get_framesize   get_framesize
577   init_frame   init_frame
578   get_localsize   get_private_data_copy_length
579   copy_locals   copy_private_data
580   compile_matchingpath   compile_matchingpath
581   compile_backtrackingpath   compile_backtrackingpath
582  */  */
# Line 497  switch(*cc) Line 599  switch(*cc)
599    case OP_WORDCHAR:    case OP_WORDCHAR:
600    case OP_ANY:    case OP_ANY:
601    case OP_ALLANY:    case OP_ALLANY:
602      case OP_NOTPROP:
603      case OP_PROP:
604    case OP_ANYNL:    case OP_ANYNL:
605    case OP_NOT_HSPACE:    case OP_NOT_HSPACE:
606    case OP_HSPACE:    case OP_HSPACE:
# Line 509  switch(*cc) Line 613  switch(*cc)
613    case OP_CIRCM:    case OP_CIRCM:
614    case OP_DOLL:    case OP_DOLL:
615    case OP_DOLLM:    case OP_DOLLM:
   case OP_TYPESTAR:  
   case OP_TYPEMINSTAR:  
   case OP_TYPEPLUS:  
   case OP_TYPEMINPLUS:  
   case OP_TYPEQUERY:  
   case OP_TYPEMINQUERY:  
   case OP_TYPEPOSSTAR:  
   case OP_TYPEPOSPLUS:  
   case OP_TYPEPOSQUERY:  
616    case OP_CRSTAR:    case OP_CRSTAR:
617    case OP_CRMINSTAR:    case OP_CRMINSTAR:
618    case OP_CRPLUS:    case OP_CRPLUS:
619    case OP_CRMINPLUS:    case OP_CRMINPLUS:
620    case OP_CRQUERY:    case OP_CRQUERY:
621    case OP_CRMINQUERY:    case OP_CRMINQUERY:
622      case OP_CRRANGE:
623      case OP_CRMINRANGE:
624      case OP_CRPOSSTAR:
625      case OP_CRPOSPLUS:
626      case OP_CRPOSQUERY:
627      case OP_CRPOSRANGE:
628      case OP_CLASS:
629      case OP_NCLASS:
630      case OP_REF:
631      case OP_REFI:
632      case OP_DNREF:
633      case OP_DNREFI:
634      case OP_RECURSE:
635      case OP_CALLOUT:
636      case OP_ALT:
637      case OP_KET:
638      case OP_KETRMAX:
639      case OP_KETRMIN:
640      case OP_KETRPOS:
641      case OP_REVERSE:
642      case OP_ASSERT:
643      case OP_ASSERT_NOT:
644      case OP_ASSERTBACK:
645      case OP_ASSERTBACK_NOT:
646      case OP_ONCE:
647      case OP_ONCE_NC:
648      case OP_BRA:
649      case OP_BRAPOS:
650      case OP_CBRA:
651      case OP_CBRAPOS:
652      case OP_COND:
653      case OP_SBRA:
654      case OP_SBRAPOS:
655      case OP_SCBRA:
656      case OP_SCBRAPOS:
657      case OP_SCOND:
658      case OP_CREF:
659      case OP_DNCREF:
660      case OP_RREF:
661      case OP_DNRREF:
662    case OP_DEF:    case OP_DEF:
663    case OP_BRAZERO:    case OP_BRAZERO:
664    case OP_BRAMINZERO:    case OP_BRAMINZERO:
665    case OP_BRAPOSZERO:    case OP_BRAPOSZERO:
666      case OP_PRUNE:
667      case OP_SKIP:
668      case OP_THEN:
669    case OP_COMMIT:    case OP_COMMIT:
670    case OP_FAIL:    case OP_FAIL:
671    case OP_ACCEPT:    case OP_ACCEPT:
672    case OP_ASSERT_ACCEPT:    case OP_ASSERT_ACCEPT:
673      case OP_CLOSE:
674    case OP_SKIPZERO:    case OP_SKIPZERO:
675    return cc + 1;    return cc + PRIV(OP_lengths)[*cc];
   
   case OP_ANYBYTE:  
 #ifdef SUPPORT_UTF  
   if (common->utf) return NULL;  
 #endif  
   return cc + 1;  
676    
677    case OP_CHAR:    case OP_CHAR:
678    case OP_CHARI:    case OP_CHARI:
# Line 551  switch(*cc) Line 684  switch(*cc)
684    case OP_MINPLUS:    case OP_MINPLUS:
685    case OP_QUERY:    case OP_QUERY:
686    case OP_MINQUERY:    case OP_MINQUERY:
687      case OP_UPTO:
688      case OP_MINUPTO:
689      case OP_EXACT:
690    case OP_POSSTAR:    case OP_POSSTAR:
691    case OP_POSPLUS:    case OP_POSPLUS:
692    case OP_POSQUERY:    case OP_POSQUERY:
693      case OP_POSUPTO:
694    case OP_STARI:    case OP_STARI:
695    case OP_MINSTARI:    case OP_MINSTARI:
696    case OP_PLUSI:    case OP_PLUSI:
697    case OP_MINPLUSI:    case OP_MINPLUSI:
698    case OP_QUERYI:    case OP_QUERYI:
699    case OP_MINQUERYI:    case OP_MINQUERYI:
700      case OP_UPTOI:
701      case OP_MINUPTOI:
702      case OP_EXACTI:
703    case OP_POSSTARI:    case OP_POSSTARI:
704    case OP_POSPLUSI:    case OP_POSPLUSI:
705    case OP_POSQUERYI:    case OP_POSQUERYI:
706      case OP_POSUPTOI:
707    case OP_NOTSTAR:    case OP_NOTSTAR:
708    case OP_NOTMINSTAR:    case OP_NOTMINSTAR:
709    case OP_NOTPLUS:    case OP_NOTPLUS:
710    case OP_NOTMINPLUS:    case OP_NOTMINPLUS:
711    case OP_NOTQUERY:    case OP_NOTQUERY:
712    case OP_NOTMINQUERY:    case OP_NOTMINQUERY:
713      case OP_NOTUPTO:
714      case OP_NOTMINUPTO:
715      case OP_NOTEXACT:
716    case OP_NOTPOSSTAR:    case OP_NOTPOSSTAR:
717    case OP_NOTPOSPLUS:    case OP_NOTPOSPLUS:
718    case OP_NOTPOSQUERY:    case OP_NOTPOSQUERY:
719      case OP_NOTPOSUPTO:
720    case OP_NOTSTARI:    case OP_NOTSTARI:
721    case OP_NOTMINSTARI:    case OP_NOTMINSTARI:
722    case OP_NOTPLUSI:    case OP_NOTPLUSI:
723    case OP_NOTMINPLUSI:    case OP_NOTMINPLUSI:
724    case OP_NOTQUERYI:    case OP_NOTQUERYI:
725    case OP_NOTMINQUERYI:    case OP_NOTMINQUERYI:
   case OP_NOTPOSSTARI:  
   case OP_NOTPOSPLUSI:  
   case OP_NOTPOSQUERYI:  
   cc += 2;  
 #ifdef SUPPORT_UTF  
   if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);  
 #endif  
   return cc;  
   
   case OP_UPTO:  
   case OP_MINUPTO:  
   case OP_EXACT:  
   case OP_POSUPTO:  
   case OP_UPTOI:  
   case OP_MINUPTOI:  
   case OP_EXACTI:  
   case OP_POSUPTOI:  
   case OP_NOTUPTO:  
   case OP_NOTMINUPTO:  
   case OP_NOTEXACT:  
   case OP_NOTPOSUPTO:  
726    case OP_NOTUPTOI:    case OP_NOTUPTOI:
727    case OP_NOTMINUPTOI:    case OP_NOTMINUPTOI:
728    case OP_NOTEXACTI:    case OP_NOTEXACTI:
729      case OP_NOTPOSSTARI:
730      case OP_NOTPOSPLUSI:
731      case OP_NOTPOSQUERYI:
732    case OP_NOTPOSUPTOI:    case OP_NOTPOSUPTOI:
733    cc += 2 + IMM2_SIZE;    cc += PRIV(OP_lengths)[*cc];
734  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
735    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
736  #endif  #endif
737    return cc;    return cc;
738    
739    case OP_NOTPROP:    /* Special cases. */
740    case OP_PROP:    case OP_TYPESTAR:
741    return cc + 1 + 2;    case OP_TYPEMINSTAR:
742      case OP_TYPEPLUS:
743      case OP_TYPEMINPLUS:
744      case OP_TYPEQUERY:
745      case OP_TYPEMINQUERY:
746    case OP_TYPEUPTO:    case OP_TYPEUPTO:
747    case OP_TYPEMINUPTO:    case OP_TYPEMINUPTO:
748    case OP_TYPEEXACT:    case OP_TYPEEXACT:
749      case OP_TYPEPOSSTAR:
750      case OP_TYPEPOSPLUS:
751      case OP_TYPEPOSQUERY:
752    case OP_TYPEPOSUPTO:    case OP_TYPEPOSUPTO:
753    case OP_REF:    return cc + PRIV(OP_lengths)[*cc] - 1;
   case OP_REFI:  
   case OP_CREF:  
   case OP_NCREF:  
   case OP_RREF:  
   case OP_NRREF:  
   case OP_CLOSE:  
   cc += 1 + IMM2_SIZE;  
   return cc;  
754    
755    case OP_CRRANGE:    case OP_ANYBYTE:
756    case OP_CRMINRANGE:  #ifdef SUPPORT_UTF
757    return cc + 1 + 2 * IMM2_SIZE;    if (common->utf) return NULL;
758    #endif
759    case OP_CLASS:    return cc + 1;
   case OP_NCLASS:  
   return cc + 1 + 32 / sizeof(pcre_uchar);  
760    
761  #if defined SUPPORT_UTF || !defined COMPILE_PCRE8  #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
762    case OP_XCLASS:    case OP_XCLASS:
763    return cc + GET(cc, 1);    return cc + GET(cc, 1);
764  #endif  #endif
765    
   case OP_RECURSE:  
   case OP_ASSERT:  
   case OP_ASSERT_NOT:  
   case OP_ASSERTBACK:  
   case OP_ASSERTBACK_NOT:  
   case OP_REVERSE:  
   case OP_ONCE:  
   case OP_ONCE_NC:  
   case OP_BRA:  
   case OP_BRAPOS:  
   case OP_COND:  
   case OP_SBRA:  
   case OP_SBRAPOS:  
   case OP_SCOND:  
   case OP_ALT:  
   case OP_KET:  
   case OP_KETRMAX:  
   case OP_KETRMIN:  
   case OP_KETRPOS:  
   return cc + 1 + LINK_SIZE;  
   
   case OP_CBRA:  
   case OP_CBRAPOS:  
   case OP_SCBRA:  
   case OP_SCBRAPOS:  
   return cc + 1 + LINK_SIZE + IMM2_SIZE;  
   
766    case OP_MARK:    case OP_MARK:
767      case OP_PRUNE_ARG:
768      case OP_SKIP_ARG:
769      case OP_THEN_ARG:
770    return cc + 1 + 2 + cc[1];    return cc + 1 + 2 + cc[1];
771    
772    default:    default:
773      /* All opcodes are supported now! */
774      SLJIT_ASSERT_STOP();
775    return NULL;    return NULL;
776    }    }
777  }  }
778    
779  #define CASE_ITERATOR_LOCAL1 \  static BOOL check_opcode_types(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)
780      case OP_MINSTAR: \  {
781      case OP_MINPLUS: \  int count;
782      case OP_QUERY: \  pcre_uchar *slot;
     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:  
783    
784  #define CASE_ITERATOR_LOCAL2A \  /* Calculate important variables (like stack size) and checks whether all opcodes are supported. */
785      case OP_STAR: \  while (cc < ccend)
786      case OP_PLUS: \    {
787      case OP_STARI: \    switch(*cc)
788      case OP_PLUSI: \      {
789      case OP_NOTSTAR: \      case OP_SET_SOM:
790      case OP_NOTPLUS: \      common->has_set_som = TRUE;
791      case OP_NOTSTARI: \      common->might_be_empty = TRUE;
792      case OP_NOTPLUSI:      cc += 1;
793        break;
794    
795  #define CASE_ITERATOR_LOCAL2B \      case OP_REF:
796      case OP_UPTO: \      case OP_REFI:
797      case OP_MINUPTO: \      common->optimized_cbracket[GET2(cc, 1)] = 0;
798      case OP_UPTOI: \      cc += 1 + IMM2_SIZE;
799      case OP_MINUPTOI: \      break;
     case OP_NOTUPTO: \  
     case OP_NOTMINUPTO: \  
     case OP_NOTUPTOI: \  
     case OP_NOTMINUPTOI:  
800    
801  #define CASE_ITERATOR_TYPE_LOCAL1 \      case OP_CBRAPOS:
802      case OP_TYPEMINSTAR: \      case OP_SCBRAPOS:
803      case OP_TYPEMINPLUS: \      common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] = 0;
804      case OP_TYPEQUERY: \      cc += 1 + LINK_SIZE + IMM2_SIZE;
805      case OP_TYPEMINQUERY:      break;
806    
807  #define CASE_ITERATOR_TYPE_LOCAL2A \      case OP_COND:
808      case OP_TYPESTAR: \      case OP_SCOND:
809      case OP_TYPEPLUS:      /* Only AUTO_CALLOUT can insert this opcode. We do
810           not intend to support this case. */
811        if (cc[1 + LINK_SIZE] == OP_CALLOUT)
812          return FALSE;
813        cc += 1 + LINK_SIZE;
814        break;
815    
816  #define CASE_ITERATOR_TYPE_LOCAL2B \      case OP_CREF:
817      case OP_TYPEUPTO: \      common->optimized_cbracket[GET2(cc, 1)] = 0;
818      case OP_TYPEMINUPTO:      cc += 1 + IMM2_SIZE;
819        break;
820    
821  static int get_class_iterator_size(pcre_uchar *cc)      case OP_DNREF:
822  {      case OP_DNREFI:
823  switch(*cc)      case OP_DNCREF:
824    {      count = GET2(cc, 1 + IMM2_SIZE);
825    case OP_CRSTAR:      slot = common->name_table + GET2(cc, 1) * common->name_entry_size;
826        while (count-- > 0)
827          {
828          common->optimized_cbracket[GET2(slot, 0)] = 0;
829          slot += common->name_entry_size;
830          }
831        cc += 1 + 2 * IMM2_SIZE;
832        break;
833    
834        case OP_RECURSE:
835        /* Set its value only once. */
836        if (common->recursive_head_ptr == 0)
837          {
838          common->recursive_head_ptr = common->ovector_start;
839          common->ovector_start += sizeof(sljit_sw);
840          }
841        cc += 1 + LINK_SIZE;
842        break;
843    
844        case OP_CALLOUT:
845        if (common->capture_last_ptr == 0)
846          {
847          common->capture_last_ptr = common->ovector_start;
848          common->ovector_start += sizeof(sljit_sw);
849          }
850        cc += 2 + 2 * LINK_SIZE;
851        break;
852    
853        case OP_THEN_ARG:
854        common->has_then = TRUE;
855        common->control_head_ptr = 1;
856        /* Fall through. */
857    
858        case OP_PRUNE_ARG:
859        common->needs_start_ptr = TRUE;
860        /* Fall through. */
861    
862        case OP_MARK:
863        if (common->mark_ptr == 0)
864          {
865          common->mark_ptr = common->ovector_start;
866          common->ovector_start += sizeof(sljit_sw);
867          }
868        cc += 1 + 2 + cc[1];
869        break;
870    
871        case OP_THEN:
872        common->has_then = TRUE;
873        common->control_head_ptr = 1;
874        /* Fall through. */
875    
876        case OP_PRUNE:
877        case OP_SKIP:
878        common->needs_start_ptr = TRUE;
879        cc += 1;
880        break;
881    
882        case OP_SKIP_ARG:
883        common->control_head_ptr = 1;
884        common->has_skip_arg = TRUE;
885        cc += 1 + 2 + cc[1];
886        break;
887    
888        default:
889        cc = next_opcode(common, cc);
890        if (cc == NULL)
891          return FALSE;
892        break;
893        }
894      }
895    return TRUE;
896    }
897    
898    static int get_class_iterator_size(pcre_uchar *cc)
899    {
900    switch(*cc)
901      {
902      case OP_CRSTAR:
903    case OP_CRPLUS:    case OP_CRPLUS:
904    return 2;    return 2;
905    
# Line 752  switch(*cc) Line 920  switch(*cc)
920    }    }
921  }  }
922    
923  static int get_localspace(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)  static BOOL detect_repeat(compiler_common *common, pcre_uchar *begin)
924  {  {
925  int localspace = 0;  pcre_uchar *end = bracketend(begin);
926  pcre_uchar *alternative;  pcre_uchar *next;
927  pcre_uchar *end = NULL;  pcre_uchar *next_end;
928  int space, size, bracketlen;  pcre_uchar *max_end;
929    pcre_uchar type;
930  /* Calculate important variables (like stack size) and checks whether all opcodes are supported. */  sljit_sw length = end - begin;
931  while (cc < ccend)  int min, max, i;
   {  
   space = 0;  
   size = 0;  
   bracketlen = 0;  
   switch(*cc)  
     {  
     case OP_SET_SOM:  
     common->has_set_som = TRUE;  
     cc += 1;  
     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:  
     localspace += sizeof(sljit_w);  
     bracketlen = 1 + LINK_SIZE;  
     break;  
   
     case OP_CBRAPOS:  
     case OP_SCBRAPOS:  
     localspace += sizeof(sljit_w);  
     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)  
       localspace += sizeof(sljit_w);  
     bracketlen = 1 + LINK_SIZE;  
     break;  
932    
933      case OP_BRA:  /* Detect fixed iterations first. */
934      bracketlen = 1 + LINK_SIZE;  if (end[-(1 + LINK_SIZE)] != OP_KET)
935      break;    return FALSE;
936    
937      case OP_CBRA:  /* Already detected repeat. */
938      case OP_SCBRA:  if (common->private_data_ptrs[end - common->start - LINK_SIZE] != 0)
939      bracketlen = 1 + LINK_SIZE + IMM2_SIZE;    return TRUE;
     break;  
940    
941      CASE_ITERATOR_LOCAL1  next = end;
942      space = 1;  min = 1;
943      size = -2;  while (1)
944      {
945      if (*next != *begin)
946      break;      break;
947      next_end = bracketend(next);
948      CASE_ITERATOR_LOCAL2A    if (next_end - next != length || memcmp(begin, next, IN_UCHARS(length)) != 0)
     space = 2;  
     size = -2;  
949      break;      break;
950      next = next_end;
951      min++;
952      }
953    
954      CASE_ITERATOR_LOCAL2B  if (min == 2)
955      space = 2;    return FALSE;
     size = -(2 + IMM2_SIZE);  
     break;  
956    
957      CASE_ITERATOR_TYPE_LOCAL1  max = 0;
958      space = 1;  max_end = next;
959      size = 1;  if (*next == OP_BRAZERO || *next == OP_BRAMINZERO)
960      break;    {
961      type = *next;
962      while (1)
963        {
964        if (next[0] != type || next[1] != OP_BRA || next[2 + LINK_SIZE] != *begin)
965          break;
966        next_end = bracketend(next + 2 + LINK_SIZE);
967        if (next_end - next != (length + 2 + LINK_SIZE) || memcmp(begin, next + 2 + LINK_SIZE, IN_UCHARS(length)) != 0)
968          break;
969        next = next_end;
970        max++;
971        }
972    
973      CASE_ITERATOR_TYPE_LOCAL2A    if (next[0] == type && next[1] == *begin && max >= 1)
974      if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI)      {
975        space = 2;      next_end = bracketend(next + 1);
976      size = 1;      if (next_end - next == (length + 1) && memcmp(begin, next + 1, IN_UCHARS(length)) == 0)
977      break;        {
978          for (i = 0; i < max; i++, next_end += 1 + LINK_SIZE)
979            if (*next_end != OP_KET)
980              break;
981    
982      CASE_ITERATOR_TYPE_LOCAL2B        if (i == max)
983      if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI)          {
984        space = 2;          common->private_data_ptrs[max_end - common->start - LINK_SIZE] = next_end - max_end;
985      size = 1 + IMM2_SIZE;          common->private_data_ptrs[max_end - common->start - LINK_SIZE + 1] = (type == OP_BRAZERO) ? OP_UPTO : OP_MINUPTO;
986      break;          /* +2 the original and the last. */
987            common->private_data_ptrs[max_end - common->start - LINK_SIZE + 2] = max + 2;
988            if (min == 1)
989              return TRUE;
990            min--;
991            max_end -= (1 + LINK_SIZE) + GET(max_end, -LINK_SIZE);
992            }
993          }
994        }
995      }
996    
997      case OP_CLASS:  if (min >= 3)
998      case OP_NCLASS:    {
999      size += 1 + 32 / sizeof(pcre_uchar);    common->private_data_ptrs[end - common->start - LINK_SIZE] = max_end - end;
1000      space = get_class_iterator_size(cc + size);    common->private_data_ptrs[end - common->start - LINK_SIZE + 1] = OP_EXACT;
1001      break;    common->private_data_ptrs[end - common->start - LINK_SIZE + 2] = min;
1002      return TRUE;
1003      }
1004    
1005  #if defined SUPPORT_UTF || !defined COMPILE_PCRE8  return FALSE;
1006      case OP_XCLASS:  }
     size = GET(cc, 1);  
     space = get_class_iterator_size(cc + size);  
     break;  
 #endif  
1007    
1008      case OP_RECURSE:  #define CASE_ITERATOR_PRIVATE_DATA_1 \
1009      /* Set its value only once. */      case OP_MINSTAR: \
1010      if (common->recursive_head == 0)      case OP_MINPLUS: \
1011        {      case OP_QUERY: \
1012        common->recursive_head = common->ovector_start;      case OP_MINQUERY: \
1013        common->ovector_start += sizeof(sljit_w);      case OP_MINSTARI: \
1014        }      case OP_MINPLUSI: \
1015      cc += 1 + LINK_SIZE;      case OP_QUERYI: \
1016      break;      case OP_MINQUERYI: \
1017        case OP_NOTMINSTAR: \
1018        case OP_NOTMINPLUS: \
1019        case OP_NOTQUERY: \
1020        case OP_NOTMINQUERY: \
1021        case OP_NOTMINSTARI: \
1022        case OP_NOTMINPLUSI: \
1023        case OP_NOTQUERYI: \
1024        case OP_NOTMINQUERYI:
1025    
1026      case OP_MARK:  #define CASE_ITERATOR_PRIVATE_DATA_2A \
1027      if (common->mark_ptr == 0)      case OP_STAR: \
1028        {      case OP_PLUS: \
1029        common->mark_ptr = common->ovector_start;      case OP_STARI: \
1030        common->ovector_start += sizeof(sljit_w);      case OP_PLUSI: \
1031        }      case OP_NOTSTAR: \
1032      cc += 1 + 2 + cc[1];      case OP_NOTPLUS: \
1033      break;      case OP_NOTSTARI: \
1034        case OP_NOTPLUSI:
1035    
1036      default:  #define CASE_ITERATOR_PRIVATE_DATA_2B \
1037      cc = next_opcode(common, cc);      case OP_UPTO: \
1038      if (cc == NULL)      case OP_MINUPTO: \
1039        return -1;      case OP_UPTOI: \
1040      break;      case OP_MINUPTOI: \
1041      }      case OP_NOTUPTO: \
1042        case OP_NOTMINUPTO: \
1043        case OP_NOTUPTOI: \
1044        case OP_NOTMINUPTOI:
1045    
1046    if (space > 0 && cc >= end)  #define CASE_ITERATOR_TYPE_PRIVATE_DATA_1 \
1047      localspace += sizeof(sljit_w) * space;      case OP_TYPEMINSTAR: \
1048        case OP_TYPEMINPLUS: \
1049        case OP_TYPEQUERY: \
1050        case OP_TYPEMINQUERY:
1051    
1052    if (size != 0)  #define CASE_ITERATOR_TYPE_PRIVATE_DATA_2A \
1053      {      case OP_TYPESTAR: \
1054      if (size < 0)      case OP_TYPEPLUS:
       {  
       cc += -size;  
 #ifdef SUPPORT_UTF  
       if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);  
 #endif  
       }  
     else  
       cc += size;  
     }  
1055    
1056    if (bracketlen > 0)  #define CASE_ITERATOR_TYPE_PRIVATE_DATA_2B \
1057      {      case OP_TYPEUPTO: \
1058      if (cc >= end)      case OP_TYPEMINUPTO:
       {  
       end = bracketend(cc);  
       if (end[-1 - LINK_SIZE] == OP_KET)  
         end = NULL;  
       }  
     cc += bracketlen;  
     }  
   }  
 return localspace;  
 }  
1059    
1060  static void set_localptrs(compiler_common *common, int localptr, pcre_uchar *ccend)  static void set_private_data_ptrs(compiler_common *common, int *private_data_start, pcre_uchar *ccend)
1061  {  {
1062  pcre_uchar *cc = common->start;  pcre_uchar *cc = common->start;
1063  pcre_uchar *alternative;  pcre_uchar *alternative;
1064  pcre_uchar *end = NULL;  pcre_uchar *end = NULL;
1065    int private_data_ptr = *private_data_start;
1066  int space, size, bracketlen;  int space, size, bracketlen;
1067    
1068  while (cc < ccend)  while (cc < ccend)
# Line 922  while (cc < ccend) Line 1070  while (cc < ccend)
1070    space = 0;    space = 0;
1071    size = 0;    size = 0;
1072    bracketlen = 0;    bracketlen = 0;
1073      if (private_data_ptr > SLJIT_MAX_LOCAL_SIZE)
1074        return;
1075    
1076      if (*cc == OP_ONCE || *cc == OP_ONCE_NC || *cc == OP_BRA || *cc == OP_CBRA || *cc == OP_COND)
1077        if (detect_repeat(common, cc))
1078          {
1079          /* These brackets are converted to repeats, so no global
1080          based single character repeat is allowed. */
1081          if (cc >= end)
1082            end = bracketend(cc);
1083          }
1084    
1085    switch(*cc)    switch(*cc)
1086      {      {
1087        case OP_KET:
1088        if (common->private_data_ptrs[cc + 1 - common->start] != 0)
1089          {
1090          common->private_data_ptrs[cc - common->start] = private_data_ptr;
1091          private_data_ptr += sizeof(sljit_sw);
1092          cc += common->private_data_ptrs[cc + 1 - common->start];
1093          }
1094        cc += 1 + LINK_SIZE;
1095        break;
1096    
1097      case OP_ASSERT:      case OP_ASSERT:
1098      case OP_ASSERT_NOT:      case OP_ASSERT_NOT:
1099      case OP_ASSERTBACK:      case OP_ASSERTBACK:
# Line 934  while (cc < ccend) Line 1104  while (cc < ccend)
1104      case OP_SBRA:      case OP_SBRA:
1105      case OP_SBRAPOS:      case OP_SBRAPOS:
1106      case OP_SCOND:      case OP_SCOND:
1107      common->localptrs[cc - common->start] = localptr;      common->private_data_ptrs[cc - common->start] = private_data_ptr;
1108      localptr += sizeof(sljit_w);      private_data_ptr += sizeof(sljit_sw);
1109      bracketlen = 1 + LINK_SIZE;      bracketlen = 1 + LINK_SIZE;
1110      break;      break;
1111    
1112      case OP_CBRAPOS:      case OP_CBRAPOS:
1113      case OP_SCBRAPOS:      case OP_SCBRAPOS:
1114      common->localptrs[cc - common->start] = localptr;      common->private_data_ptrs[cc - common->start] = private_data_ptr;
1115      localptr += sizeof(sljit_w);      private_data_ptr += sizeof(sljit_sw);
1116      bracketlen = 1 + LINK_SIZE + IMM2_SIZE;      bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
1117      break;      break;
1118    
# Line 951  while (cc < ccend) Line 1121  while (cc < ccend)
1121      alternative = cc + GET(cc, 1);      alternative = cc + GET(cc, 1);
1122      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
1123        {        {
1124        common->localptrs[cc - common->start] = localptr;        common->private_data_ptrs[cc - common->start] = private_data_ptr;
1125        localptr += sizeof(sljit_w);        private_data_ptr += sizeof(sljit_sw);
1126        }        }
1127      bracketlen = 1 + LINK_SIZE;      bracketlen = 1 + LINK_SIZE;
1128      break;      break;
# Line 966  while (cc < ccend) Line 1136  while (cc < ccend)
1136      bracketlen = 1 + LINK_SIZE + IMM2_SIZE;      bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
1137      break;      break;
1138    
1139      CASE_ITERATOR_LOCAL1      CASE_ITERATOR_PRIVATE_DATA_1
1140      space = 1;      space = 1;
1141      size = -2;      size = -2;
1142      break;      break;
1143    
1144      CASE_ITERATOR_LOCAL2A      CASE_ITERATOR_PRIVATE_DATA_2A
1145      space = 2;      space = 2;
1146      size = -2;      size = -2;
1147      break;      break;
1148    
1149      CASE_ITERATOR_LOCAL2B      CASE_ITERATOR_PRIVATE_DATA_2B
1150      space = 2;      space = 2;
1151      size = -(2 + IMM2_SIZE);      size = -(2 + IMM2_SIZE);
1152      break;      break;
1153    
1154      CASE_ITERATOR_TYPE_LOCAL1      CASE_ITERATOR_TYPE_PRIVATE_DATA_1
1155      space = 1;      space = 1;
1156      size = 1;      size = 1;
1157      break;      break;
1158    
1159      CASE_ITERATOR_TYPE_LOCAL2A      CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
1160      if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI)      if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI)
1161        space = 2;        space = 2;
1162      size = 1;      size = 1;
1163      break;      break;
1164    
1165      CASE_ITERATOR_TYPE_LOCAL2B      CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
1166      if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI)      if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI)
1167        space = 2;        space = 2;
1168      size = 1 + IMM2_SIZE;      size = 1 + IMM2_SIZE;
# Line 1017  while (cc < ccend) Line 1187  while (cc < ccend)
1187      break;      break;
1188      }      }
1189    
1190      /* Character iterators, which are not inside a repeated bracket,
1191         gets a private slot instead of allocating it on the stack. */
1192    if (space > 0 && cc >= end)    if (space > 0 && cc >= end)
1193      {      {
1194      common->localptrs[cc - common->start] = localptr;      common->private_data_ptrs[cc - common->start] = private_data_ptr;
1195      localptr += sizeof(sljit_w) * space;      private_data_ptr += sizeof(sljit_sw) * space;
1196      }      }
1197    
1198    if (size != 0)    if (size != 0)
# Line 1047  while (cc < ccend) Line 1219  while (cc < ccend)
1219      cc += bracketlen;      cc += bracketlen;
1220      }      }
1221    }    }
1222    *private_data_start = private_data_ptr;
1223  }  }
1224    
1225  /* Returns with -1 if no need for frame. */  /* Returns with a frame_types (always < 0) if no need for frame. */
1226  static int get_framesize(compiler_common *common, pcre_uchar *cc, BOOL recursive)  static int get_framesize(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, BOOL recursive, BOOL *needs_control_head)
1227  {  {
 pcre_uchar *ccend = bracketend(cc);  
1228  int length = 0;  int length = 0;
1229  BOOL possessive = FALSE;  int possessive = 0;
1230    BOOL stack_restore = FALSE;
1231  BOOL setsom_found = recursive;  BOOL setsom_found = recursive;
1232  BOOL setmark_found = recursive;  BOOL setmark_found = recursive;
1233    /* The last capture is a local variable even for recursions. */
1234    BOOL capture_last_found = FALSE;
1235    
1236  if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS))  #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD
1237    SLJIT_ASSERT(common->control_head_ptr != 0);
1238    *needs_control_head = TRUE;
1239    #else
1240    *needs_control_head = FALSE;
1241    #endif
1242    
1243    if (ccend == NULL)
1244    {    {
1245    length = 3;    ccend = bracketend(cc) - (1 + LINK_SIZE);
1246    possessive = TRUE;    if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS))
1247        {
1248        possessive = length = (common->capture_last_ptr != 0) ? 5 : 3;
1249        /* This is correct regardless of common->capture_last_ptr. */
1250        capture_last_found = TRUE;
1251        }
1252      cc = next_opcode(common, cc);
1253    }    }
1254    
 cc = next_opcode(common, cc);  
1255  SLJIT_ASSERT(cc != NULL);  SLJIT_ASSERT(cc != NULL);
1256  while (cc < ccend)  while (cc < ccend)
1257    switch(*cc)    switch(*cc)
1258      {      {
1259      case OP_SET_SOM:      case OP_SET_SOM:
1260      SLJIT_ASSERT(common->has_set_som);      SLJIT_ASSERT(common->has_set_som);
1261        stack_restore = TRUE;
1262      if (!setsom_found)      if (!setsom_found)
1263        {        {
1264        length += 2;        length += 2;
# Line 1080  while (cc < ccend) Line 1268  while (cc < ccend)
1268      break;      break;
1269    
1270      case OP_MARK:      case OP_MARK:
1271        case OP_PRUNE_ARG:
1272        case OP_THEN_ARG:
1273      SLJIT_ASSERT(common->mark_ptr != 0);      SLJIT_ASSERT(common->mark_ptr != 0);
1274        stack_restore = TRUE;
1275      if (!setmark_found)      if (!setmark_found)
1276        {        {
1277        length += 2;        length += 2;
1278        setmark_found = TRUE;        setmark_found = TRUE;
1279        }        }
1280        if (common->control_head_ptr != 0)
1281          *needs_control_head = TRUE;
1282      cc += 1 + 2 + cc[1];      cc += 1 + 2 + cc[1];
1283      break;      break;
1284    
1285      case OP_RECURSE:      case OP_RECURSE:
1286        stack_restore = TRUE;
1287      if (common->has_set_som && !setsom_found)      if (common->has_set_som && !setsom_found)
1288        {        {
1289        length += 2;        length += 2;
# Line 1100  while (cc < ccend) Line 1294  while (cc < ccend)
1294        length += 2;        length += 2;
1295        setmark_found = TRUE;        setmark_found = TRUE;
1296        }        }
1297        if (common->capture_last_ptr != 0 && !capture_last_found)
1298          {
1299          length += 2;
1300          capture_last_found = TRUE;
1301          }
1302      cc += 1 + LINK_SIZE;      cc += 1 + LINK_SIZE;
1303      break;      break;
1304    
1305      case OP_CBRA:      case OP_CBRA:
1306      case OP_CBRAPOS:      case OP_CBRAPOS:
1307      case OP_SCBRA:      case OP_SCBRA:
1308      case OP_SCBRAPOS:      case OP_SCBRAPOS:
1309      length += 3;      stack_restore = TRUE;
1310      cc += 1 + LINK_SIZE + IMM2_SIZE;      if (common->capture_last_ptr != 0 && !capture_last_found)
1311      break;        {
1312          length += 2;
1313          capture_last_found = TRUE;
1314          }
1315        length += 3;
1316        cc += 1 + LINK_SIZE + IMM2_SIZE;
1317        break;
1318    
1319        default:
1320        stack_restore = TRUE;
1321        /* Fall through. */
1322    
1323        case OP_NOT_WORD_BOUNDARY:
1324        case OP_WORD_BOUNDARY:
1325        case OP_NOT_DIGIT:
1326        case OP_DIGIT:
1327        case OP_NOT_WHITESPACE:
1328        case OP_WHITESPACE:
1329        case OP_NOT_WORDCHAR:
1330        case OP_WORDCHAR:
1331        case OP_ANY:
1332        case OP_ALLANY:
1333        case OP_ANYBYTE:
1334        case OP_NOTPROP:
1335        case OP_PROP:
1336        case OP_ANYNL:
1337        case OP_NOT_HSPACE:
1338        case OP_HSPACE:
1339        case OP_NOT_VSPACE:
1340        case OP_VSPACE:
1341        case OP_EXTUNI:
1342        case OP_EODN:
1343        case OP_EOD:
1344        case OP_CIRC:
1345        case OP_CIRCM:
1346        case OP_DOLL:
1347        case OP_DOLLM:
1348        case OP_CHAR:
1349        case OP_CHARI:
1350        case OP_NOT:
1351        case OP_NOTI:
1352    
1353        case OP_EXACT:
1354        case OP_POSSTAR:
1355        case OP_POSPLUS:
1356        case OP_POSQUERY:
1357        case OP_POSUPTO:
1358    
1359        case OP_EXACTI:
1360        case OP_POSSTARI:
1361        case OP_POSPLUSI:
1362        case OP_POSQUERYI:
1363        case OP_POSUPTOI:
1364    
1365        case OP_NOTEXACT:
1366        case OP_NOTPOSSTAR:
1367        case OP_NOTPOSPLUS:
1368        case OP_NOTPOSQUERY:
1369        case OP_NOTPOSUPTO:
1370    
1371        case OP_NOTEXACTI:
1372        case OP_NOTPOSSTARI:
1373        case OP_NOTPOSPLUSI:
1374        case OP_NOTPOSQUERYI:
1375        case OP_NOTPOSUPTOI:
1376    
1377        case OP_TYPEEXACT:
1378        case OP_TYPEPOSSTAR:
1379        case OP_TYPEPOSPLUS:
1380        case OP_TYPEPOSQUERY:
1381        case OP_TYPEPOSUPTO:
1382    
1383        case OP_CLASS:
1384        case OP_NCLASS:
1385        case OP_XCLASS:
1386    
     default:  
1387      cc = next_opcode(common, cc);      cc = next_opcode(common, cc);
1388      SLJIT_ASSERT(cc != NULL);      SLJIT_ASSERT(cc != NULL);
1389      break;      break;
1390      }      }
1391    
1392  /* Possessive quantifiers can use a special case. */  /* Possessive quantifiers can use a special case. */
1393  if (SLJIT_UNLIKELY(possessive) && length == 3)  if (SLJIT_UNLIKELY(possessive == length))
1394    return -1;    return stack_restore ? no_frame : no_stack;
1395    
1396  if (length > 0)  if (length > 0)
1397    return length + 1;    return length + 1;
1398  return -1;  return stack_restore ? no_frame : no_stack;
1399  }  }
1400    
1401  static void init_frame(compiler_common *common, pcre_uchar *cc, int stackpos, int stacktop, BOOL recursive)  static void init_frame(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, int stackpos, int stacktop, BOOL recursive)
1402  {  {
1403  DEFINE_COMPILER;  DEFINE_COMPILER;
 pcre_uchar *ccend = bracketend(cc);  
1404  BOOL setsom_found = recursive;  BOOL setsom_found = recursive;
1405  BOOL setmark_found = recursive;  BOOL setmark_found = recursive;
1406    /* The last capture is a local variable even for recursions. */
1407    BOOL capture_last_found = FALSE;
1408  int offset;  int offset;
1409    
1410  /* >= 1 + shortest item size (2) */  /* >= 1 + shortest item size (2) */
# Line 1139  SLJIT_UNUSED_ARG(stacktop); Line 1412  SLJIT_UNUSED_ARG(stacktop);
1412  SLJIT_ASSERT(stackpos >= stacktop + 2);  SLJIT_ASSERT(stackpos >= stacktop + 2);
1413    
1414  stackpos = STACK(stackpos);  stackpos = STACK(stackpos);
1415  if (recursive || (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS))  if (ccend == NULL)
1416    cc = next_opcode(common, cc);    {
1417      ccend = bracketend(cc) - (1 + LINK_SIZE);
1418      if (recursive || (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS))
1419        cc = next_opcode(common, cc);
1420      }
1421    
1422  SLJIT_ASSERT(cc != NULL);  SLJIT_ASSERT(cc != NULL);
1423  while (cc < ccend)  while (cc < ccend)
1424    switch(*cc)    switch(*cc)
# Line 1149  while (cc < ccend) Line 1427  while (cc < ccend)
1427      SLJIT_ASSERT(common->has_set_som);      SLJIT_ASSERT(common->has_set_som);
1428      if (!setsom_found)      if (!setsom_found)
1429        {        {
1430        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
1431        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setstrbegin);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
1432        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1433        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1434        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1435        setsom_found = TRUE;        setsom_found = TRUE;
1436        }        }
1437      cc += 1;      cc += 1;
1438      break;      break;
1439    
1440      case OP_MARK:      case OP_MARK:
1441        case OP_PRUNE_ARG:
1442        case OP_THEN_ARG:
1443      SLJIT_ASSERT(common->mark_ptr != 0);      SLJIT_ASSERT(common->mark_ptr != 0);
1444      if (!setmark_found)      if (!setmark_found)
1445        {        {
1446        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
1447        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setmark);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
1448        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1449        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1450        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1451        setmark_found = TRUE;        setmark_found = TRUE;
1452        }        }
1453      cc += 1 + 2 + cc[1];      cc += 1 + 2 + cc[1];
# Line 1176  while (cc < ccend) Line 1456  while (cc < ccend)
1456      case OP_RECURSE:      case OP_RECURSE:
1457      if (common->has_set_som && !setsom_found)      if (common->has_set_som && !setsom_found)
1458        {        {
1459        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
1460        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setstrbegin);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
1461        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1462        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1463        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1464        setsom_found = TRUE;        setsom_found = TRUE;
1465        }        }
1466      if (common->mark_ptr != 0 && !setmark_found)      if (common->mark_ptr != 0 && !setmark_found)
1467        {        {
1468        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
1469        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setmark);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
1470        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1471        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1472        stackpos += (int)sizeof(sljit_w);        stackpos += (int)sizeof(sljit_sw);
1473        setmark_found = TRUE;        setmark_found = TRUE;
1474        }        }
1475        if (common->capture_last_ptr != 0 && !capture_last_found)
1476          {
1477          OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
1478          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
1479          stackpos += (int)sizeof(sljit_sw);
1480          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1481          stackpos += (int)sizeof(sljit_sw);
1482          capture_last_found = TRUE;
1483          }
1484      cc += 1 + LINK_SIZE;      cc += 1 + LINK_SIZE;
1485      break;      break;
1486    
# Line 1199  while (cc < ccend) Line 1488  while (cc < ccend)
1488      case OP_CBRAPOS:      case OP_CBRAPOS:
1489      case OP_SCBRA:      case OP_SCBRA:
1490      case OP_SCBRAPOS:      case OP_SCBRAPOS:
1491        if (common->capture_last_ptr != 0 && !capture_last_found)
1492          {
1493          OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
1494          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
1495          stackpos += (int)sizeof(sljit_sw);
1496          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1497          stackpos += (int)sizeof(sljit_sw);
1498          capture_last_found = TRUE;
1499          }
1500      offset = (GET2(cc, 1 + LINK_SIZE)) << 1;      offset = (GET2(cc, 1 + LINK_SIZE)) << 1;
1501      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));
1502      stackpos += (int)sizeof(sljit_w);      stackpos += (int)sizeof(sljit_sw);
1503      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
1504      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
1505      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
1506      stackpos += (int)sizeof(sljit_w);      stackpos += (int)sizeof(sljit_sw);
1507      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);
1508      stackpos += (int)sizeof(sljit_w);      stackpos += (int)sizeof(sljit_sw);
1509    
1510      cc += 1 + LINK_SIZE + IMM2_SIZE;      cc += 1 + LINK_SIZE + IMM2_SIZE;
1511      break;      break;
# Line 1218  while (cc < ccend) Line 1516  while (cc < ccend)
1516      break;      break;
1517      }      }
1518    
1519  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_end);  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, 0);
1520  SLJIT_ASSERT(stackpos == STACK(stacktop));  SLJIT_ASSERT(stackpos == STACK(stacktop));
1521  }  }
1522    
1523  static SLJIT_INLINE int get_localsize(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)  static SLJIT_INLINE int get_private_data_copy_length(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, BOOL needs_control_head)
1524  {  {
1525  int localsize = 2;  int private_data_length = needs_control_head ? 3 : 2;
1526  int size;  int size;
1527  pcre_uchar *alternative;  pcre_uchar *alternative;
1528  /* Calculate the sum of the local variables. */  /* Calculate the sum of the private machine words. */
1529  while (cc < ccend)  while (cc < ccend)
1530    {    {
1531    size = 0;    size = 0;
1532    switch(*cc)    switch(*cc)
1533      {      {
1534        case OP_KET:
1535        if (PRIVATE_DATA(cc) != 0)
1536          private_data_length++;
1537        cc += 1 + LINK_SIZE;
1538        break;
1539    
1540      case OP_ASSERT:      case OP_ASSERT:
1541      case OP_ASSERT_NOT:      case OP_ASSERT_NOT:
1542      case OP_ASSERTBACK:      case OP_ASSERTBACK:
# Line 1243  while (cc < ccend) Line 1547  while (cc < ccend)
1547      case OP_SBRA:      case OP_SBRA:
1548      case OP_SBRAPOS:      case OP_SBRAPOS:
1549      case OP_SCOND:      case OP_SCOND:
1550      localsize++;      private_data_length++;
1551      cc += 1 + LINK_SIZE;      cc += 1 + LINK_SIZE;
1552      break;      break;
1553    
1554      case OP_CBRA:      case OP_CBRA:
1555      case OP_SCBRA:      case OP_SCBRA:
1556      localsize++;      if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
1557          private_data_length++;
1558      cc += 1 + LINK_SIZE + IMM2_SIZE;      cc += 1 + LINK_SIZE + IMM2_SIZE;
1559      break;      break;
1560    
1561      case OP_CBRAPOS:      case OP_CBRAPOS:
1562      case OP_SCBRAPOS:      case OP_SCBRAPOS:
1563      localsize += 2;      private_data_length += 2;
1564      cc += 1 + LINK_SIZE + IMM2_SIZE;      cc += 1 + LINK_SIZE + IMM2_SIZE;
1565      break;      break;
1566    
# Line 1263  while (cc < ccend) Line 1568  while (cc < ccend)
1568      /* Might be a hidden SCOND. */      /* Might be a hidden SCOND. */
1569      alternative = cc + GET(cc, 1);      alternative = cc + GET(cc, 1);
1570      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
1571        localsize++;        private_data_length++;
1572      cc += 1 + LINK_SIZE;      cc += 1 + LINK_SIZE;
1573      break;      break;
1574    
1575      CASE_ITERATOR_LOCAL1      CASE_ITERATOR_PRIVATE_DATA_1
1576      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1577        localsize++;        private_data_length++;
1578      cc += 2;      cc += 2;
1579  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
1580      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
1581  #endif  #endif
1582      break;      break;
1583    
1584      CASE_ITERATOR_LOCAL2A      CASE_ITERATOR_PRIVATE_DATA_2A
1585      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1586        localsize += 2;        private_data_length += 2;
1587      cc += 2;      cc += 2;
1588  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
1589      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
1590  #endif  #endif
1591      break;      break;
1592    
1593      CASE_ITERATOR_LOCAL2B      CASE_ITERATOR_PRIVATE_DATA_2B
1594      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1595        localsize += 2;        private_data_length += 2;
1596      cc += 2 + IMM2_SIZE;      cc += 2 + IMM2_SIZE;
1597  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
1598      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
1599  #endif  #endif
1600      break;      break;
1601    
1602      CASE_ITERATOR_TYPE_LOCAL1      CASE_ITERATOR_TYPE_PRIVATE_DATA_1
1603      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1604        localsize++;        private_data_length++;
1605      cc += 1;      cc += 1;
1606      break;      break;
1607    
1608      CASE_ITERATOR_TYPE_LOCAL2A      CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
1609      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1610        localsize += 2;        private_data_length += 2;
1611      cc += 1;      cc += 1;
1612      break;      break;
1613    
1614      CASE_ITERATOR_TYPE_LOCAL2B      CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
1615      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1616        localsize += 2;        private_data_length += 2;
1617      cc += 1 + IMM2_SIZE;      cc += 1 + IMM2_SIZE;
1618      break;      break;
1619    
# Line 1320  while (cc < ccend) Line 1625  while (cc < ccend)
1625  #else  #else
1626      size = 1 + 32 / (int)sizeof(pcre_uchar);      size = 1 + 32 / (int)sizeof(pcre_uchar);
1627  #endif  #endif
1628      if (PRIV_DATA(cc))      if (PRIVATE_DATA(cc))
1629        localsize += get_class_iterator_size(cc + size);        private_data_length += get_class_iterator_size(cc + size);
1630      cc += size;      cc += size;
1631      break;      break;
1632    
# Line 1332  while (cc < ccend) Line 1637  while (cc < ccend)
1637      }      }
1638    }    }
1639  SLJIT_ASSERT(cc == ccend);  SLJIT_ASSERT(cc == ccend);
1640  return localsize;  return private_data_length;
1641  }  }
1642    
1643  static void copy_locals(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend,  static void copy_private_data(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend,
1644    BOOL save, int stackptr, int stacktop)    BOOL save, int stackptr, int stacktop, BOOL needs_control_head)
1645  {  {
1646  DEFINE_COMPILER;  DEFINE_COMPILER;
1647  int srcw[2];  int srcw[2];
# Line 1357  stacktop = STACK(stacktop - 1); Line 1662  stacktop = STACK(stacktop - 1);
1662    
1663  if (!save)  if (!save)
1664    {    {
1665    stackptr += sizeof(sljit_w);    stackptr += (needs_control_head ? 2 : 1) * sizeof(sljit_sw);
1666    if (stackptr < stacktop)    if (stackptr < stacktop)
1667      {      {
1668      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
1669      stackptr += sizeof(sljit_w);      stackptr += sizeof(sljit_sw);
1670      tmp1empty = FALSE;      tmp1empty = FALSE;
1671      }      }
1672    if (stackptr < stacktop)    if (stackptr < stacktop)
1673      {      {
1674      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
1675      stackptr += sizeof(sljit_w);      stackptr += sizeof(sljit_sw);
1676      tmp2empty = FALSE;      tmp2empty = FALSE;
1677      }      }
1678    /* The tmp1next must be TRUE in either way. */    /* The tmp1next must be TRUE in either way. */
1679    }    }
1680    
1681  while (status != end)  do
1682    {    {
1683    count = 0;    count = 0;
1684    switch(status)    switch(status)
1685      {      {
1686      case start:      case start:
1687      SLJIT_ASSERT(save && common->recursive_head != 0);      SLJIT_ASSERT(save && common->recursive_head_ptr != 0);
1688      count = 1;      count = 1;
1689      srcw[0] = common->recursive_head;      srcw[0] = common->recursive_head_ptr;
1690        if (needs_control_head)
1691          {
1692          SLJIT_ASSERT(common->control_head_ptr != 0);
1693          count = 2;
1694          srcw[1] = common->control_head_ptr;
1695          }
1696      status = loop;      status = loop;
1697      break;      break;
1698    
# Line 1394  while (status != end) Line 1705  while (status != end)
1705    
1706      switch(*cc)      switch(*cc)
1707        {        {
1708          case OP_KET:
1709          if (PRIVATE_DATA(cc) != 0)
1710            {
1711            count = 1;
1712            srcw[0] = PRIVATE_DATA(cc);
1713            }
1714          cc += 1 + LINK_SIZE;
1715          break;
1716    
1717        case OP_ASSERT:        case OP_ASSERT:
1718        case OP_ASSERT_NOT:        case OP_ASSERT_NOT:
1719        case OP_ASSERTBACK:        case OP_ASSERTBACK:
# Line 1405  while (status != end) Line 1725  while (status != end)
1725        case OP_SBRAPOS:        case OP_SBRAPOS:
1726        case OP_SCOND:        case OP_SCOND:
1727        count = 1;        count = 1;
1728        srcw[0] = PRIV_DATA(cc);        srcw[0] = PRIVATE_DATA(cc);
1729        SLJIT_ASSERT(srcw[0] != 0);        SLJIT_ASSERT(srcw[0] != 0);
1730        cc += 1 + LINK_SIZE;        cc += 1 + LINK_SIZE;
1731        break;        break;
1732    
1733        case OP_CBRA:        case OP_CBRA:
1734        case OP_SCBRA:        case OP_SCBRA:
1735        count = 1;        if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
1736        srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));          {
1737            count = 1;
1738            srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
1739            }
1740        cc += 1 + LINK_SIZE + IMM2_SIZE;        cc += 1 + LINK_SIZE + IMM2_SIZE;
1741        break;        break;
1742    
1743        case OP_CBRAPOS:        case OP_CBRAPOS:
1744        case OP_SCBRAPOS:        case OP_SCBRAPOS:
1745        count = 2;        count = 2;
1746        srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));        srcw[0] = PRIVATE_DATA(cc);
1747        srcw[1] = PRIV_DATA(cc);        srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
1748        SLJIT_ASSERT(srcw[0] != 0);        SLJIT_ASSERT(srcw[0] != 0 && srcw[1] != 0);
1749        cc += 1 + LINK_SIZE + IMM2_SIZE;        cc += 1 + LINK_SIZE + IMM2_SIZE;
1750        break;        break;
1751    
# Line 1432  while (status != end) Line 1755  while (status != end)
1755        if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)        if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
1756          {          {
1757          count = 1;          count = 1;
1758          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1759          SLJIT_ASSERT(srcw[0] != 0);          SLJIT_ASSERT(srcw[0] != 0);
1760          }          }
1761        cc += 1 + LINK_SIZE;        cc += 1 + LINK_SIZE;
1762        break;        break;
1763    
1764        CASE_ITERATOR_LOCAL1        CASE_ITERATOR_PRIVATE_DATA_1
1765        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1766          {          {
1767          count = 1;          count = 1;
1768          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1769          }          }
1770        cc += 2;        cc += 2;
1771  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
# Line 1450  while (status != end) Line 1773  while (status != end)
1773  #endif  #endif
1774        break;        break;
1775    
1776        CASE_ITERATOR_LOCAL2A        CASE_ITERATOR_PRIVATE_DATA_2A
1777        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1778          {          {
1779          count = 2;          count = 2;
1780          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1781          srcw[1] = PRIV_DATA(cc) + sizeof(sljit_w);          srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
1782          }          }
1783        cc += 2;        cc += 2;
1784  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
# Line 1463  while (status != end) Line 1786  while (status != end)
1786  #endif  #endif
1787        break;        break;
1788    
1789        CASE_ITERATOR_LOCAL2B        CASE_ITERATOR_PRIVATE_DATA_2B
1790        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1791          {          {
1792          count = 2;          count = 2;
1793          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1794          srcw[1] = PRIV_DATA(cc) + sizeof(sljit_w);          srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
1795          }          }
1796        cc += 2 + IMM2_SIZE;        cc += 2 + IMM2_SIZE;
1797  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
# Line 1476  while (status != end) Line 1799  while (status != end)
1799  #endif  #endif
1800        break;        break;
1801    
1802        CASE_ITERATOR_TYPE_LOCAL1        CASE_ITERATOR_TYPE_PRIVATE_DATA_1
1803        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1804          {          {
1805          count = 1;          count = 1;
1806          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1807          }          }
1808        cc += 1;        cc += 1;
1809        break;        break;
1810    
1811        CASE_ITERATOR_TYPE_LOCAL2A        CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
1812        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1813          {          {
1814          count = 2;          count = 2;
1815          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1816          srcw[1] = srcw[0] + sizeof(sljit_w);          srcw[1] = srcw[0] + sizeof(sljit_sw);
1817          }          }
1818        cc += 1;        cc += 1;
1819        break;        break;
1820    
1821        CASE_ITERATOR_TYPE_LOCAL2B        CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
1822        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1823          {          {
1824          count = 2;          count = 2;
1825          srcw[0] = PRIV_DATA(cc);          srcw[0] = PRIVATE_DATA(cc);
1826          srcw[1] = srcw[0] + sizeof(sljit_w);          srcw[1] = srcw[0] + sizeof(sljit_sw);
1827          }          }
1828        cc += 1 + IMM2_SIZE;        cc += 1 + IMM2_SIZE;
1829        break;        break;
# Line 1513  while (status != end) Line 1836  while (status != end)
1836  #else  #else
1837        size = 1 + 32 / (int)sizeof(pcre_uchar);        size = 1 + 32 / (int)sizeof(pcre_uchar);
1838  #endif  #endif
1839        if (PRIV_DATA(cc))        if (PRIVATE_DATA(cc))
1840          switch(get_class_iterator_size(cc + size))          switch(get_class_iterator_size(cc + size))
1841            {            {
1842            case 1:            case 1:
1843            count = 1;            count = 1;
1844            srcw[0] = PRIV_DATA(cc);            srcw[0] = PRIVATE_DATA(cc);
1845            break;            break;
1846    
1847            case 2:            case 2:
1848            count = 2;            count = 2;
1849            srcw[0] = PRIV_DATA(cc);            srcw[0] = PRIVATE_DATA(cc);
1850            srcw[1] = srcw[0] + sizeof(sljit_w);            srcw[1] = srcw[0] + sizeof(sljit_sw);
1851            break;            break;
1852    
1853            default:            default:
# Line 1556  while (status != end) Line 1879  while (status != end)
1879          if (!tmp1empty)          if (!tmp1empty)
1880            {            {
1881            OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);            OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
1882            stackptr += sizeof(sljit_w);            stackptr += sizeof(sljit_sw);
1883            }            }
1884          OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);          OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), srcw[count]);
1885          tmp1empty = FALSE;          tmp1empty = FALSE;
1886          tmp1next = FALSE;          tmp1next = FALSE;
1887          }          }
# Line 1567  while (status != end) Line 1890  while (status != end)
1890          if (!tmp2empty)          if (!tmp2empty)
1891            {            {
1892            OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);            OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
1893            stackptr += sizeof(sljit_w);            stackptr += sizeof(sljit_sw);
1894            }            }
1895          OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);          OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), srcw[count]);
1896          tmp2empty = FALSE;          tmp2empty = FALSE;
1897          tmp1next = TRUE;          tmp1next = TRUE;
1898          }          }
# Line 1579  while (status != end) Line 1902  while (status != end)
1902        if (tmp1next)        if (tmp1next)
1903          {          {
1904          SLJIT_ASSERT(!tmp1empty);          SLJIT_ASSERT(!tmp1empty);
1905          OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP1, 0);          OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), srcw[count], TMP1, 0);
1906          tmp1empty = stackptr >= stacktop;          tmp1empty = stackptr >= stacktop;
1907          if (!tmp1empty)          if (!tmp1empty)
1908            {            {
1909            OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);            OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
1910            stackptr += sizeof(sljit_w);            stackptr += sizeof(sljit_sw);
1911            }            }
1912          tmp1next = FALSE;          tmp1next = FALSE;
1913          }          }
1914        else        else
1915          {          {
1916          SLJIT_ASSERT(!tmp2empty);          SLJIT_ASSERT(!tmp2empty);
1917          OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP2, 0);          OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), srcw[count], TMP2, 0);
1918          tmp2empty = stackptr >= stacktop;          tmp2empty = stackptr >= stacktop;
1919          if (!tmp2empty)          if (!tmp2empty)
1920            {            {
1921            OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);            OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
1922            stackptr += sizeof(sljit_w);            stackptr += sizeof(sljit_sw);
1923            }            }
1924          tmp1next = TRUE;          tmp1next = TRUE;
1925          }          }
1926        }        }
1927      }      }
1928    }    }
1929    while (status != end);
1930    
1931  if (save)  if (save)
1932    {    {
# Line 1611  if (save) Line 1935  if (save)
1935      if (!tmp1empty)      if (!tmp1empty)
1936        {        {
1937        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
1938        stackptr += sizeof(sljit_w);        stackptr += sizeof(sljit_sw);
1939        }        }
1940      if (!tmp2empty)      if (!tmp2empty)
1941        {        {
1942        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
1943        stackptr += sizeof(sljit_w);        stackptr += sizeof(sljit_sw);
1944        }        }
1945      }      }
1946    else    else
# Line 1624  if (save) Line 1948  if (save)
1948      if (!tmp2empty)      if (!tmp2empty)
1949        {        {
1950        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
1951        stackptr += sizeof(sljit_w);        stackptr += sizeof(sljit_sw);
1952        }        }
1953      if (!tmp1empty)      if (!tmp1empty)
1954        {        {
1955        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
1956        stackptr += sizeof(sljit_w);        stackptr += sizeof(sljit_sw);
1957        }        }
1958      }      }
1959    }    }
1960  SLJIT_ASSERT(cc == ccend && stackptr == stacktop && (save || (tmp1empty && tmp2empty)));  SLJIT_ASSERT(cc == ccend && stackptr == stacktop && (save || (tmp1empty && tmp2empty)));
1961  }  }
1962    
1963  #undef CASE_ITERATOR_LOCAL1  static SLJIT_INLINE pcre_uchar *set_then_offsets(compiler_common *common, pcre_uchar *cc, pcre_uint8 *current_offset)
1964  #undef CASE_ITERATOR_LOCAL2A  {
1965  #undef CASE_ITERATOR_LOCAL2B  pcre_uchar *end = bracketend(cc);
1966  #undef CASE_ITERATOR_TYPE_LOCAL1  BOOL has_alternatives = cc[GET(cc, 1)] == OP_ALT;
1967  #undef CASE_ITERATOR_TYPE_LOCAL2A  
1968  #undef CASE_ITERATOR_TYPE_LOCAL2B  /* Assert captures then. */
1969    if (*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT)
1970      current_offset = NULL;
1971    /* Conditional block does not. */
1972    if (*cc == OP_COND || *cc == OP_SCOND)
1973      has_alternatives = FALSE;
1974    
1975    cc = next_opcode(common, cc);
1976    if (has_alternatives)
1977      current_offset = common->then_offsets + (cc - common->start);
1978    
1979    while (cc < end)
1980      {
1981      if ((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND))
1982        cc = set_then_offsets(common, cc, current_offset);
1983      else
1984        {
1985        if (*cc == OP_ALT && has_alternatives)
1986          current_offset = common->then_offsets + (cc + 1 + LINK_SIZE - common->start);
1987        if (*cc >= OP_THEN && *cc <= OP_THEN_ARG && current_offset != NULL)
1988          *current_offset = 1;
1989        cc = next_opcode(common, cc);
1990        }
1991      }
1992    
1993    return end;
1994    }
1995    
1996    #undef CASE_ITERATOR_PRIVATE_DATA_1
1997    #undef CASE_ITERATOR_PRIVATE_DATA_2A
1998    #undef CASE_ITERATOR_PRIVATE_DATA_2B
1999    #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_1
2000    #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
2001    #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
2002    
2003  static SLJIT_INLINE BOOL ispowerof2(unsigned int value)  static SLJIT_INLINE BOOL is_powerof2(unsigned int value)
2004  {  {
2005  return (value & (value - 1)) == 0;  return (value & (value - 1)) == 0;
2006  }  }
# Line 1654  while (list) Line 2011  while (list)
2011    {    {
2012    /* sljit_set_label is clever enough to do nothing    /* sljit_set_label is clever enough to do nothing
2013    if either the jump or the label is NULL. */    if either the jump or the label is NULL. */
2014    sljit_set_label(list->jump, label);    SET_LABEL(list->jump, label);
2015    list = list->next;    list = list->next;
2016    }    }
2017  }  }
2018    
2019  static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump* jump)  static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump *jump)
2020  {  {
2021  jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list));  jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list));
2022  if (list_item)  if (list_item)
# Line 1670  if (list_item) Line 2027  if (list_item)
2027    }    }
2028  }  }
2029    
2030  static void add_stub(compiler_common *common, enum stub_types type, int data, struct sljit_jump *start)  static void add_stub(compiler_common *common, struct sljit_jump *start)
2031  {  {
2032  DEFINE_COMPILER;  DEFINE_COMPILER;
2033  stub_list* list_item = sljit_alloc_memory(compiler, sizeof(stub_list));  stub_list *list_item = sljit_alloc_memory(compiler, sizeof(stub_list));
2034    
2035  if (list_item)  if (list_item)
2036    {    {
   list_item->type = type;  
   list_item->data = data;  
2037    list_item->start = start;    list_item->start = start;
2038    list_item->quit = LABEL();    list_item->quit = LABEL();
2039    list_item->next = common->stubs;    list_item->next = common->stubs;
# Line 1689  if (list_item) Line 2044  if (list_item)
2044  static void flush_stubs(compiler_common *common)  static void flush_stubs(compiler_common *common)
2045  {  {
2046  DEFINE_COMPILER;  DEFINE_COMPILER;
2047  stub_list* list_item = common->stubs;  stub_list *list_item = common->stubs;
2048    
2049  while (list_item)  while (list_item)
2050    {    {
2051    JUMPHERE(list_item->start);    JUMPHERE(list_item->start);
2052    switch(list_item->type)    add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL));
     {  
     case stack_alloc:  
     add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL));  
     break;  
     }  
2053    JUMPTO(SLJIT_JUMP, list_item->quit);    JUMPTO(SLJIT_JUMP, list_item->quit);
2054    list_item = list_item->next;    list_item = list_item->next;
2055    }    }
2056  common->stubs = NULL;  common->stubs = NULL;
2057  }  }
2058    
2059  static SLJIT_INLINE void decrease_call_count(compiler_common *common)  static void add_label_addr(compiler_common *common, sljit_uw *update_addr)
2060    {
2061    DEFINE_COMPILER;
2062    label_addr_list *label_addr;
2063    
2064    label_addr = sljit_alloc_memory(compiler, sizeof(label_addr_list));
2065    if (label_addr == NULL)
2066      return;
2067    label_addr->label = LABEL();
2068    label_addr->update_addr = update_addr;
2069    label_addr->next = common->label_addrs;
2070    common->label_addrs = label_addr;
2071    }
2072    
2073    static SLJIT_INLINE void count_match(compiler_common *common)
2074  {  {
2075  DEFINE_COMPILER;  DEFINE_COMPILER;
2076    
2077  OP2(SLJIT_SUB | SLJIT_SET_E, CALL_COUNT, 0, CALL_COUNT, 0, SLJIT_IMM, 1);  OP2(SLJIT_SUB | SLJIT_SET_E, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1);
2078  add_jump(compiler, &common->calllimit, JUMP(SLJIT_C_ZERO));  add_jump(compiler, &common->calllimit, JUMP(SLJIT_ZERO));
2079  }  }
2080    
2081  static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)  static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)
# Line 1719  static SLJIT_INLINE void allocate_stack( Line 2083  static SLJIT_INLINE void allocate_stack(
2083  /* May destroy all locals and registers except TMP2. */  /* May destroy all locals and registers except TMP2. */
2084  DEFINE_COMPILER;  DEFINE_COMPILER;
2085    
2086  OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_w));  OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
2087  #ifdef DESTROY_REGISTERS  #ifdef DESTROY_REGISTERS
2088  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);
2089  OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);  OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
2090  OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);  OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
2091  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, TMP1, 0);  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, TMP1, 0);
2092  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP1, 0);  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0);
2093  #endif  #endif
2094  add_stub(common, stack_alloc, 0, CMP(SLJIT_C_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));  add_stub(common, CMP(SLJIT_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));
2095  }  }
2096    
2097  static SLJIT_INLINE void free_stack(compiler_common *common, int size)  static SLJIT_INLINE void free_stack(compiler_common *common, int size)
2098  {  {
2099  DEFINE_COMPILER;  DEFINE_COMPILER;
2100  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_w));  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
2101    }
2102    
2103    static sljit_uw * allocate_read_only_data(compiler_common *common, sljit_uw size)
2104    {
2105    DEFINE_COMPILER;
2106    sljit_uw *result;
2107    
2108    if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
2109      return NULL;
2110    
2111    result = (sljit_uw *)SLJIT_MALLOC(size + sizeof(sljit_uw), common->allocator_data);
2112    if (SLJIT_UNLIKELY(result == NULL))
2113      {
2114      sljit_set_compiler_memory_error(compiler);
2115      return NULL;
2116      }
2117    
2118    *(void**)result = common->read_only_data_head;
2119    common->read_only_data_head = (void *)result;
2120    return result + 1;
2121    }
2122    
2123    static void free_read_only_data(void *current, void *allocator_data)
2124    {
2125    void *next;
2126    
2127    SLJIT_UNUSED_ARG(allocator_data);
2128    
2129    while (current != NULL)
2130      {
2131      next = *(void**)current;
2132      SLJIT_FREE(current, allocator_data);
2133      current = next;
2134      }
2135  }  }
2136    
2137  static SLJIT_INLINE void reset_ovector(compiler_common *common, int length)  static SLJIT_INLINE void reset_ovector(compiler_common *common, int length)
# Line 1741  static SLJIT_INLINE void reset_ovector(c Line 2139  static SLJIT_INLINE void reset_ovector(c
2139  DEFINE_COMPILER;  DEFINE_COMPILER;
2140  struct sljit_label *loop;  struct sljit_label *loop;
2141  int i;  int i;
2142    
2143  /* At this point we can freely use all temporary registers. */  /* At this point we can freely use all temporary registers. */
2144    SLJIT_ASSERT(length > 1);
2145  /* TMP1 returns with begin - 1. */  /* TMP1 returns with begin - 1. */
2146  OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG1, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_SUB, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_S0), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1));
2147    if (length < 8)
2148      {
2149      for (i = 1; i < length; i++)
2150        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), SLJIT_R0, 0);
2151      }
2152    else
2153      {
2154      GET_LOCAL_BASE(SLJIT_R1, 0, OVECTOR_START);
2155      OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1);
2156      loop = LABEL();
2157      OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw), SLJIT_R0, 0);
2158      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1);
2159      JUMPTO(SLJIT_NOT_ZERO, loop);
2160      }
2161    }
2162    
2163    static SLJIT_INLINE void do_reset_match(compiler_common *common, int length)
2164    {
2165    DEFINE_COMPILER;
2166    struct sljit_label *loop;
2167    int i;
2168    
2169    SLJIT_ASSERT(length > 1);
2170    /* OVECTOR(1) contains the "string begin - 1" constant. */
2171    if (length > 2)
2172      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
2173  if (length < 8)  if (length < 8)
2174    {    {
2175    for (i = 0; i < length; i++)    for (i = 2; i < length; i++)
2176      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(i), SLJIT_TEMPORARY_REG1, 0);      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), TMP1, 0);
2177    }    }
2178  else  else
2179    {    {
2180    GET_LOCAL_BASE(SLJIT_TEMPORARY_REG2, 0, OVECTOR_START - sizeof(sljit_w));    GET_LOCAL_BASE(TMP2, 0, OVECTOR_START + sizeof(sljit_sw));
2181    OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, length);    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2);
2182    loop = LABEL();    loop = LABEL();
2183    OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), sizeof(sljit_w), SLJIT_TEMPORARY_REG1, 0);    OP1(SLJIT_MOVU, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
2184    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 1);    OP2(SLJIT_SUB | SLJIT_SET_E, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1);
2185    JUMPTO(SLJIT_C_NOT_ZERO, loop);    JUMPTO(SLJIT_NOT_ZERO, loop);
2186      }
2187    
2188    OP1(SLJIT_MOV, STACK_TOP, 0, ARGUMENTS, 0);
2189    if (common->mark_ptr != 0)
2190      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0);
2191    if (common->control_head_ptr != 0)
2192      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
2193    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(jit_arguments, stack));
2194    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr);
2195    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(struct sljit_stack, base));
2196    }
2197    
2198    static sljit_sw SLJIT_CALL do_search_mark(sljit_sw *current, const pcre_uchar *skip_arg)
2199    {
2200    while (current != NULL)
2201      {
2202      switch (current[-2])
2203        {
2204        case type_then_trap:
2205        break;
2206    
2207        case type_mark:
2208        if (STRCMP_UC_UC(skip_arg, (pcre_uchar *)current[-3]) == 0)
2209          return current[-4];
2210        break;
2211    
2212        default:
2213        SLJIT_ASSERT_STOP();
2214        break;
2215        }
2216      current = (sljit_sw*)current[-1];
2217    }    }
2218    return -1;
2219  }  }
2220    
2221  static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket)  static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket)
2222  {  {
2223  DEFINE_COMPILER;  DEFINE_COMPILER;
2224  struct sljit_label *loop;  struct sljit_label *loop;
2225  struct sljit_jump *earlyexit;  struct sljit_jump *early_quit;
2226    
2227  /* At this point we can freely use all registers. */  /* At this point we can freely use all registers. */
2228  OP1(SLJIT_MOV, SLJIT_SAVED_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));  OP1(SLJIT_MOV, SLJIT_S2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
2229  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1), STR_PTR, 0);  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(1), STR_PTR, 0);
2230    
2231  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, ARGUMENTS, 0);  OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0);
2232  if (common->mark_ptr != 0)  if (common->mark_ptr != 0)
2233    OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);    OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
2234  OP1(SLJIT_MOV_SI, SLJIT_TEMPORARY_REG2, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, offsetcount));  OP1(SLJIT_MOV_SI, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, offset_count));
2235  if (common->mark_ptr != 0)  if (common->mark_ptr != 0)
2236    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_TEMPORARY_REG3, 0);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_R2, 0);
2237  OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, offsets), SLJIT_IMM, sizeof(int));  OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, offsets), SLJIT_IMM, sizeof(int));
2238  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, begin));  OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, begin));
2239  GET_LOCAL_BASE(SLJIT_SAVED_REG1, 0, OVECTOR_START);  GET_LOCAL_BASE(SLJIT_S0, 0, OVECTOR_START);
2240  /* Unlikely, but possible */  /* Unlikely, but possible */
2241  earlyexit = CMP(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 0);  early_quit = CMP(SLJIT_EQUAL, SLJIT_R1, 0, SLJIT_IMM, 0);
2242  loop = LABEL();  loop = LABEL();
2243  OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), 0, SLJIT_TEMPORARY_REG1, 0);  OP2(SLJIT_SUB, SLJIT_S1, 0, SLJIT_MEM1(SLJIT_S0), 0, SLJIT_R0, 0);
2244  OP2(SLJIT_ADD, SLJIT_SAVED_REG1, 0, SLJIT_SAVED_REG1, 0, SLJIT_IMM, sizeof(sljit_w));  OP2(SLJIT_ADD, SLJIT_S0, 0, SLJIT_S0, 0, SLJIT_IMM, sizeof(sljit_sw));
2245  /* Copy the integer value to the output buffer */  /* Copy the integer value to the output buffer */
2246  #ifdef COMPILE_PCRE16  #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2247  OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, 1);  OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT);
2248  #endif  #endif
2249  OP1(SLJIT_MOVU_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG3), sizeof(int), SLJIT_SAVED_REG2, 0);  OP1(SLJIT_MOVU_SI, SLJIT_MEM1(SLJIT_R2), sizeof(int), SLJIT_S1, 0);
2250  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_TEMPORARY_REG2, 0, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 1);  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
2251  JUMPTO(SLJIT_C_NOT_ZERO, loop);  JUMPTO(SLJIT_NOT_ZERO, loop);
2252  JUMPHERE(earlyexit);  JUMPHERE(early_quit);
2253    
2254  /* Calculate the return value, which is the maximum ovector value. */  /* Calculate the return value, which is the maximum ovector value. */
2255  if (topbracket > 1)  if (topbracket > 1)
2256    {    {
2257    GET_LOCAL_BASE(SLJIT_TEMPORARY_REG1, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_w));    GET_LOCAL_BASE(SLJIT_R0, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_sw));
2258    OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, topbracket + 1);    OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, topbracket + 1);
2259    
2260    /* OVECTOR(0) is never equal to SLJIT_SAVED_REG3. */    /* OVECTOR(0) is never equal to SLJIT_S2. */
2261    loop = LABEL();    loop = LABEL();
2262    OP1(SLJIT_MOVU, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), -(2 * (sljit_w)sizeof(sljit_w)));    OP1(SLJIT_MOVU, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), -(2 * (sljit_sw)sizeof(sljit_sw)));
2263    OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG2, 0, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 1);    OP2(SLJIT_SUB, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
2264    CMPTO(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG3, 0, SLJIT_SAVED_REG3, 0, loop);    CMPTO(SLJIT_EQUAL, SLJIT_R2, 0, SLJIT_S2, 0, loop);
2265    OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_TEMPORARY_REG2, 0);    OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_R1, 0);
2266    }    }
2267  else  else
2268    OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);    OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
# Line 1813  else Line 2271  else
2271  static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *quit)  static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *quit)
2272  {  {
2273  DEFINE_COMPILER;  DEFINE_COMPILER;
2274    struct sljit_jump *jump;
2275    
2276  SLJIT_COMPILE_ASSERT(STR_END == SLJIT_SAVED_REG2, str_end_must_be_saved_reg2);  SLJIT_COMPILE_ASSERT(STR_END == SLJIT_S1, str_end_must_be_saved_reg2);
2277  SLJIT_ASSERT(common->start_used_ptr != 0 && (common->mode == JIT_PARTIAL_SOFT_COMPILE ? common->hit_start != 0 : common->hit_start == 0));  SLJIT_ASSERT(common->start_used_ptr != 0 && common->start_ptr != 0
2278      && (common->mode == JIT_PARTIAL_SOFT_COMPILE ? common->hit_start != 0 : common->hit_start == 0));
2279    
2280  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, ARGUMENTS, 0);  OP1(SLJIT_MOV, SLJIT_R1, 0, ARGUMENTS, 0);
2281  OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_PARTIAL);  OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_PARTIAL);
2282  OP1(SLJIT_MOV_SI, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, offsetcount));  OP1(SLJIT_MOV_SI, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, real_offset_count));
2283  CMPTO(SLJIT_C_LESS, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 2, quit);  CMPTO(SLJIT_SIG_LESS, SLJIT_R2, 0, SLJIT_IMM, 2, quit);
2284    
2285  /* Store match begin and end. */  /* Store match begin and end. */
2286  OP1(SLJIT_MOV, SLJIT_SAVED_REG1, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, begin));  OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, begin));
2287  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, offsets));  OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, offsets));
2288  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_used_ptr : common->hit_start);  
2289  OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, STR_END, 0, SLJIT_SAVED_REG1, 0);  jump = CMP(SLJIT_SIG_LESS, SLJIT_R2, 0, SLJIT_IMM, 3);
2290  #ifdef COMPILE_PCRE16  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);
2291  OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, 1);  #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2292  #endif  OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT);
2293  OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), sizeof(int), SLJIT_SAVED_REG2, 0);  #endif
2294    OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), 2 * sizeof(int), SLJIT_R2, 0);
2295  OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_SAVED_REG1, 0);  JUMPHERE(jump);
2296  #ifdef COMPILE_PCRE16  
2297  OP2(SLJIT_ASHR, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 1);  OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_used_ptr : common->hit_start);
2298    OP2(SLJIT_SUB, SLJIT_S1, 0, STR_END, 0, SLJIT_S0, 0);
2299    #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2300    OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT);
2301    #endif
2302    OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), sizeof(int), SLJIT_S1, 0);
2303    
2304    OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_S0, 0);
2305    #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2306    OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT);
2307  #endif  #endif
2308  OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), 0, SLJIT_TEMPORARY_REG3, 0);  OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_R1), 0, SLJIT_R2, 0);
2309    
2310  JUMPTO(SLJIT_JUMP, quit);  JUMPTO(SLJIT_JUMP, quit);
2311  }  }
# Line 1850  struct sljit_jump *jump; Line 2319  struct sljit_jump *jump;
2319  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
2320    {    {
2321    /* The value of -1 must be kept for start_used_ptr! */    /* The value of -1 must be kept for start_used_ptr! */
2322    OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, 1);    OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, 1);
2323    /* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting    /* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting
2324    is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */    is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */
2325    jump = CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, STR_PTR, 0);    jump = CMP(SLJIT_LESS_EQUAL, TMP1, 0, STR_PTR, 0);
2326    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
2327    JUMPHERE(jump);    JUMPHERE(jump);
2328    }    }
2329  else if (common->mode == JIT_PARTIAL_HARD_COMPILE)  else if (common->mode == JIT_PARTIAL_HARD_COMPILE)
2330    {    {
2331    jump = CMP(SLJIT_C_LESS_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    jump = CMP(SLJIT_LESS_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
2332    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
2333    JUMPHERE(jump);    JUMPHERE(jump);
2334    }    }
2335  }  }
2336    
2337  static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, pcre_uchar* cc)  static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, pcre_uchar *cc)
2338  {  {
2339  /* Detects if the character has an othercase. */  /* Detects if the character has an othercase. */
2340  unsigned int c;  unsigned int c;
# Line 1908  if (common->utf && c > 127) Line 2377  if (common->utf && c > 127)
2377  return TABLE_GET(c, common->fcc, c);  return TABLE_GET(c, common->fcc, c);
2378  }  }
2379    
2380  static unsigned int char_get_othercase_bit(compiler_common *common, pcre_uchar* cc)  static unsigned int char_get_othercase_bit(compiler_common *common, pcre_uchar *cc)
2381  {  {
2382  /* Detects if the character and its othercase has only 1 bit difference. */  /* Detects if the character and its othercase has only 1 bit difference. */
2383  unsigned int c, oc, bit;  unsigned int c, oc, bit;
# Line 1949  if (c <= 127 && bit == 0x20) Line 2418  if (c <= 127 && bit == 0x20)
2418    return (0 << 8) | 0x20;    return (0 << 8) | 0x20;
2419    
2420  /* Since c != oc, they must have at least 1 bit difference. */  /* Since c != oc, they must have at least 1 bit difference. */
2421  if (!ispowerof2(bit))  if (!is_powerof2(bit))
2422    return 0;    return 0;
2423    
2424  #ifdef COMPILE_PCRE8  #if defined COMPILE_PCRE8
2425    
2426  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
2427  if (common->utf && c > 127)  if (common->utf && c > 127)
# Line 1968  if (common->utf && c > 127) Line 2437  if (common->utf && c > 127)
2437  #endif /* SUPPORT_UTF */  #endif /* SUPPORT_UTF */
2438  return (0 << 8) | bit;  return (0 << 8) | bit;
2439    
2440  #else /* COMPILE_PCRE8 */  #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2441    
 #ifdef COMPILE_PCRE16  
2442  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
2443  if (common->utf && c > 65535)  if (common->utf && c > 65535)
2444    {    {
# Line 1981  if (common->utf && c > 65535) Line 2449  if (common->utf && c > 65535)
2449    }    }
2450  #endif /* SUPPORT_UTF */  #endif /* SUPPORT_UTF */
2451  return (bit < 256) ? ((0 << 8) | bit) : ((1 << 8) | (bit >> 8));  return (bit < 256) ? ((0 << 8) | bit) : ((1 << 8) | (bit >> 8));
 #endif /* COMPILE_PCRE16 */  
2452    
2453  #endif /* COMPILE_PCRE8 */  #endif /* COMPILE_PCRE[8|16|32] */
2454  }  }
2455    
2456  static void check_partial(compiler_common *common, BOOL force)  static void check_partial(compiler_common *common, BOOL force)
2457  {  {
2458  /* Checks whether a partial matching is occured. Does not modify registers. */  /* Checks whether a partial matching is occurred. Does not modify registers. */
2459  DEFINE_COMPILER;  DEFINE_COMPILER;
2460  struct sljit_jump *jump = NULL;  struct sljit_jump *jump = NULL;
2461    
# Line 1998  if (common->mode == JIT_COMPILE) Line 2465  if (common->mode == JIT_COMPILE)
2465    return;    return;
2466    
2467  if (!force)  if (!force)
2468    jump = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    jump = CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
2469  else if (common->mode == JIT_PARTIAL_SOFT_COMPILE)  else if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
2470    jump = CMP(SLJIT_C_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, -1);    jump = CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1);
2471    
2472  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
2473    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
2474  else  else
2475    {    {
2476    if (common->partialmatchlabel != NULL)    if (common->partialmatchlabel != NULL)
# Line 2016  if (jump != NULL) Line 2483  if (jump != NULL)
2483    JUMPHERE(jump);    JUMPHERE(jump);
2484  }  }
2485    
2486  static struct sljit_jump *check_str_end(compiler_common *common)  static void check_str_end(compiler_common *common, jump_list **end_reached)
2487  {  {
2488  /* Does not affect registers. Usually used in a tight spot. */  /* Does not affect registers. Usually used in a tight spot. */
2489  DEFINE_COMPILER;  DEFINE_COMPILER;
2490  struct sljit_jump *jump;  struct sljit_jump *jump;
 struct sljit_jump *nohit;  
 struct sljit_jump *return_value;  
2491    
2492  if (common->mode == JIT_COMPILE)  if (common->mode == JIT_COMPILE)
2493    return CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);    {
2494      add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
2495      return;
2496      }
2497    
2498  jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);  jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
2499  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
2500    {    {
2501    nohit = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
2502    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
2503    JUMPHERE(nohit);    add_jump(compiler, end_reached, JUMP(SLJIT_JUMP));
   return_value = JUMP(SLJIT_JUMP);  
2504    }    }
2505  else  else
2506    {    {
2507    return_value = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);    add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
2508    if (common->partialmatchlabel != NULL)    if (common->partialmatchlabel != NULL)
2509      JUMPTO(SLJIT_JUMP, common->partialmatchlabel);      JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
2510    else    else
2511      add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));      add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
2512    }    }
2513  JUMPHERE(jump);  JUMPHERE(jump);
 return return_value;  
2514  }  }
2515    
2516  static void detect_partial_match(compiler_common *common, jump_list **backtracks)  static void detect_partial_match(compiler_common *common, jump_list **backtracks)
# Line 2054  struct sljit_jump *jump; Line 2520  struct sljit_jump *jump;
2520    
2521  if (common->mode == JIT_COMPILE)  if (common->mode == JIT_COMPILE)
2522    {    {
2523    add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));    add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
2524    return;    return;
2525    }    }
2526    
2527  /* Partial matching mode. */  /* Partial matching mode. */
2528  jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);  jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
2529  add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0));  add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
2530  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)  if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
2531    {    {
2532    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
2533    add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));    add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
2534    }    }
2535  else  else
# Line 2076  else Line 2542  else
2542  JUMPHERE(jump);  JUMPHERE(jump);
2543  }  }
2544    
2545  static void read_char(compiler_common *common)  static void peek_char(compiler_common *common, pcre_uint32 max)
2546  {  {
2547  /* Reads the character into TMP1, updates STR_PTR.  /* Reads the character into TMP1, keeps STR_PTR.
2548  Does not check STR_END. TMP2 Destroyed. */  Does not check STR_END. TMP2 Destroyed. */
2549  DEFINE_COMPILER;  DEFINE_COMPILER;
2550  #ifdef SUPPORT_UTF  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2551  struct sljit_jump *jump;  struct sljit_jump *jump;
2552  #endif  #endif
2553    
2554    SLJIT_UNUSED_ARG(max);
2555    
2556  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
2557  #ifdef SUPPORT_UTF  #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2558  if (common->utf)  if (common->utf)
2559    {    {
2560  #ifdef COMPILE_PCRE8    if (max < 128) return;
2561    jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);  
2562  #else    jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
2563  #ifdef COMPILE_PCRE16    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
   jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);  
 #endif  
 #endif /* COMPILE_PCRE8 */  
2564    add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));    add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
2565      OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
2566      JUMPHERE(jump);
2567      }
2568    #endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
2569    
2570    #if defined SUPPORT_UTF && defined COMPILE_PCRE16
2571    if (common->utf)
2572      {
2573      if (max < 0xd800) return;
2574    
2575      OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
2576      jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
2577      /* TMP2 contains the high surrogate. */
2578      OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2579      OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40);
2580      OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10);
2581      OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
2582      OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2583    JUMPHERE(jump);    JUMPHERE(jump);
2584    }    }
2585  #endif  #endif
2586    }
2587    
2588    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2589    
2590    static BOOL is_char7_bitset(const pcre_uint8 *bitset, BOOL nclass)
2591    {
2592    /* Tells whether the character codes below 128 are enough
2593    to determine a match. */
2594    const pcre_uint8 value = nclass ? 0xff : 0;
2595    const pcre_uint8 *end = bitset + 32;
2596    
2597    bitset += 16;
2598    do
2599      {
2600      if (*bitset++ != value)
2601        return FALSE;
2602      }
2603    while (bitset < end);
2604    return TRUE;
2605    }
2606    
2607    static void read_char7_type(compiler_common *common, BOOL full_read)
2608    {
2609    /* Reads the precise character type of a character into TMP1, if the character
2610    is less than 128. Otherwise it returns with zero. Does not check STR_END. The
2611    full_read argument tells whether characters above max are accepted or not. */
2612    DEFINE_COMPILER;
2613    struct sljit_jump *jump;
2614    
2615    SLJIT_ASSERT(common->utf);
2616    
2617    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
2618  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2619    
2620    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
2621    
2622    if (full_read)
2623      {
2624      jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
2625      OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0);
2626      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
2627      JUMPHERE(jump);
2628      }
2629  }  }
2630    
2631  static void peek_char(compiler_common *common)  #endif /* SUPPORT_UTF && COMPILE_PCRE8 */
2632    
2633    static void read_char_range(compiler_common *common, pcre_uint32 min, pcre_uint32 max, BOOL update_str_ptr)
2634  {  {
2635  /* Reads the character into TMP1, keeps STR_PTR.  /* Reads the precise value of a character into TMP1, if the character is
2636  Does not check STR_END. TMP2 Destroyed. */  between min and max (c >= min && c <= max). Otherwise it returns with a value
2637    outside the range. Does not check STR_END. */
2638  DEFINE_COMPILER;  DEFINE_COMPILER;
2639  #ifdef SUPPORT_UTF  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2640  struct sljit_jump *jump;  struct sljit_jump *jump;
2641  #endif  #endif
2642    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2643    struct sljit_jump *jump2;
2644    #endif
2645    
2646  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);  SLJIT_UNUSED_ARG(update_str_ptr);
2647  #ifdef SUPPORT_UTF  SLJIT_UNUSED_ARG(min);
2648    SLJIT_UNUSED_ARG(max);
2649    SLJIT_ASSERT(min <= max);
2650    
2651    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2652    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2653    
2654    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2655  if (common->utf)  if (common->utf)
2656    {    {
2657  #ifdef COMPILE_PCRE8    if (max < 128 && !update_str_ptr) return;
2658    jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);  
2659  #else    jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
2660  #ifdef COMPILE_PCRE16    if (min >= 0x10000)
2661    jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);      {
2662        OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xf0);
2663        if (update_str_ptr)
2664          OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
2665        OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2666        jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x7);
2667        OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
2668        OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
2669        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2670        OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
2671        OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2672        OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2673        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2674        OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
2675        if (!update_str_ptr)
2676          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
2677        OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2678        OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2679        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2680        JUMPHERE(jump2);
2681        if (update_str_ptr)
2682          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
2683        }
2684      else if (min >= 0x800 && max <= 0xffff)
2685        {
2686        OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xe0);
2687        if (update_str_ptr)
2688          OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
2689        OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2690        jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xf);
2691        OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
2692        OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
2693        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2694        OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
2695        if (!update_str_ptr)
2696          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
2697        OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2698        OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2699        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2700        JUMPHERE(jump2);
2701        if (update_str_ptr)
2702          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
2703        }
2704      else if (max >= 0x800)
2705        add_jump(compiler, (max < 0x10000) ? &common->utfreadchar16 : &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
2706      else if (max < 128)
2707        {
2708        OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
2709        OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
2710        }
2711      else
2712        {
2713        OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2714        if (!update_str_ptr)
2715          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2716        else
2717          OP1(SLJIT_MOV_UB, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
2718        OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
2719        OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2720        OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2721        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2722        if (update_str_ptr)
2723          OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
2724        }
2725      JUMPHERE(jump);
2726      }
2727  #endif  #endif
2728  #endif /* COMPILE_PCRE8 */  
2729    add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));  #if defined SUPPORT_UTF && defined COMPILE_PCRE16
2730    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);  if (common->utf)
2731      {
2732      if (max >= 0x10000)
2733        {
2734        OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
2735        jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
2736        /* TMP2 contains the high surrogate. */
2737        OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2738        OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40);
2739        OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10);
2740        OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2741        OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
2742        OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2743        JUMPHERE(jump);
2744        return;
2745        }
2746    
2747      if (max < 0xd800 && !update_str_ptr) return;
2748    
2749      /* Skip low surrogate if necessary. */
2750      OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
2751      jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
2752      if (update_str_ptr)
2753        OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2754      if (max >= 0xd800)
2755        OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x10000);
2756    JUMPHERE(jump);    JUMPHERE(jump);
2757    }    }
2758  #endif  #endif
2759  }  }
2760    
2761  static void read_char8_type(compiler_common *common)  static SLJIT_INLINE void read_char(compiler_common *common)
2762    {
2763    read_char_range(common, 0, READ_CHAR_MAX, TRUE);
2764    }
2765    
2766    static void read_char8_type(compiler_common *common, BOOL update_str_ptr)
2767  {  {
2768  /* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */  /* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */
2769  DEFINE_COMPILER;  DEFINE_COMPILER;
2770  #if defined SUPPORT_UTF || defined COMPILE_PCRE16  #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
2771  struct sljit_jump *jump;  struct sljit_jump *jump;
2772  #endif  #endif
2773    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2774    struct sljit_jump *jump2;
2775    #endif
2776    
2777  #ifdef SUPPORT_UTF  SLJIT_UNUSED_ARG(update_str_ptr);
2778    
2779    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
2780    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2781    
2782    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
2783  if (common->utf)  if (common->utf)
2784    {    {
   OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);  
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  
 #ifdef COMPILE_PCRE8  
2785    /* This can be an extra read in some situations, but hopefully    /* This can be an extra read in some situations, but hopefully
2786    it is needed in most cases. */    it is needed in most cases. */
2787    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
2788    jump = CMP(SLJIT_C_LESS, TMP2, 0, SLJIT_IMM, 0xc0);    jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
2789    add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL));    if (!update_str_ptr)
2790    JUMPHERE(jump);      {
2791  #else      OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2792  #ifdef COMPILE_PCRE16      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2793    OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);      OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2794    jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);      OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
2795    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);      OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
2796        OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
2797        OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
2798        jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255);
2799        OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
2800        JUMPHERE(jump2);
2801        }
2802      else
2803        add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL));
2804    JUMPHERE(jump);    JUMPHERE(jump);
   /* Skip low surrogate if necessary. */  
   OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xfc00);  
   OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0xd800);  
   COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);  
   OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);  
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);  
 #endif  
 #endif /* COMPILE_PCRE8 */  
2805    return;    return;
2806    }    }
2807  #endif  #endif /* SUPPORT_UTF && COMPILE_PCRE8 */
2808  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);  
2809  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  #if !defined COMPILE_PCRE8
 #ifdef COMPILE_PCRE16  
2810  /* The ctypes array contains only 256 values. */  /* The ctypes array contains only 256 values. */
2811  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
2812  jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);  jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255);
2813  #endif  #endif
2814  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
2815  #ifdef COMPILE_PCRE16  #if !defined COMPILE_PCRE8
2816  JUMPHERE(jump);  JUMPHERE(jump);
2817  #endif  #endif
2818    
2819    #if defined SUPPORT_UTF && defined COMPILE_PCRE16
2820    if (common->utf && update_str_ptr)
2821      {
2822      /* Skip low surrogate if necessary. */
2823      OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800);
2824      jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
2825      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2826      JUMPHERE(jump);
2827      }
2828    #endif /* SUPPORT_UTF && COMPILE_PCRE16 */
2829  }  }
2830    
2831  static void skip_char_back(compiler_common *common)  static void skip_char_back(compiler_common *common)
2832  {  {
2833  /* Goes one character back. Affects STR_PTR and TMP1. Does not check begin. */  /* Goes one character back. Affects STR_PTR and TMP1. Does not check begin. */
2834  DEFINE_COMPILER;  DEFINE_COMPILER;
2835  #if defined SUPPORT_UTF && defined COMPILE_PCRE8  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2836    #if defined COMPILE_PCRE8
2837  struct sljit_label *label;  struct sljit_label *label;
2838    
2839  if (common->utf)  if (common->utf)
# Line 2193  if (common->utf) Line 2842  if (common->utf)
2842    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
2843    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2844    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
2845    CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label);    CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label);
2846    return;    return;
2847    }    }
2848  #endif  #elif defined COMPILE_PCRE16
 #if defined SUPPORT_UTF && defined COMPILE_PCRE16  
2849  if (common->utf)  if (common->utf)
2850    {    {
2851    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
# Line 2205  if (common->utf) Line 2853  if (common->utf)
2853    /* Skip low surrogate if necessary. */    /* Skip low surrogate if necessary. */
2854    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
2855    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
2856    COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);    OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
2857    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
2858    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
2859    return;    return;
2860    }    }
2861  #endif  #endif /* COMPILE_PCRE[8|16] */
2862    #endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
2863  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2864  }  }
2865    
2866  static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpiftrue)  static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpifmatch)
2867  {  {
2868  /* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */  /* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */
2869  DEFINE_COMPILER;  DEFINE_COMPILER;
2870    struct sljit_jump *jump;
2871    
2872  if (nltype == NLTYPE_ANY)  if (nltype == NLTYPE_ANY)
2873    {    {
2874    add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));    add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
2875    add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));    add_jump(compiler, backtracks, JUMP(jumpifmatch ? SLJIT_NOT_ZERO : SLJIT_ZERO));
2876    }    }
2877  else if (nltype == NLTYPE_ANYCRLF)  else if (nltype == NLTYPE_ANYCRLF)
2878    {    {
2879    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_CR);    if (jumpifmatch)
2880    COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);      {
2881    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);      add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR));
2882    COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);      add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
2883    add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));      }
2884      else
2885        {
2886        jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
2887        add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
2888        JUMPHERE(jump);
2889        }
2890    }    }
2891  else  else
2892    {    {
2893    SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256);    SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256);
2894    add_jump(compiler, backtracks, CMP(jumpiftrue ? SLJIT_C_EQUAL : SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));    add_jump(compiler, backtracks, CMP(jumpifmatch ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
2895    }    }
2896  }  }
2897    
2898  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
2899    
2900  #ifdef COMPILE_PCRE8  #if defined COMPILE_PCRE8
2901  static void do_utfreadchar(compiler_common *common)  static void do_utfreadchar(compiler_common *common)
2902  {  {
2903  /* Fast decoding a UTF-8 character. TMP1 contains the first byte  /* Fast decoding a UTF-8 character. TMP1 contains the first byte
2904  of the character (>= 0xc0). Return char value in TMP1, length - 1 in TMP2. */  of the character (>= 0xc0). Return char value in TMP1, length in TMP2. */
2905  DEFINE_COMPILER;  DEFINE_COMPILER;
2906  struct sljit_jump *jump;  struct sljit_jump *jump;
2907    
2908  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
2909  /* Searching for the first zero. */  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2910  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
 jump = JUMP(SLJIT_C_NOT_ZERO);  
 /* Two byte sequence. */  
 OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));  
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  
 OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1f);  
2911  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2912  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2913  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2914  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));  
2915    /* Searching for the first zero. */
2916    OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
2917    jump = JUMP(SLJIT_NOT_ZERO);
2918    /* Two byte sequence. */
2919    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2920    OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2));
2921  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 JUMPHERE(jump);  
2922    
2923  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10);  JUMPHERE(jump);
 jump = JUMP(SLJIT_C_NOT_ZERO);  
 /* Three byte sequence. */  
2924  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
2925  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0f);  OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800);
2926  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 12);  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2927  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);  
2928  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2929  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));  
2930    OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10000);
2931    jump = JUMP(SLJIT_NOT_ZERO);
2932    /* Three byte sequence. */
2933  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
2934  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3));
 OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  
 OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2));  
2935  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 JUMPHERE(jump);  
2936    
2937  /* Four byte sequence. */  /* Four byte sequence. */
2938  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));  JUMPHERE(jump);
2939  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x07);  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
2940  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 18);  OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000);
2941    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2942    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
2943  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 12);  
2944  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2945  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(4));
2946    sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
2947    }
2948    
2949    static void do_utfreadchar16(compiler_common *common)
2950    {
2951    /* Fast decoding a UTF-8 character. TMP1 contains the first byte
2952    of the character (>= 0xc0). Return value in TMP1. */
2953    DEFINE_COMPILER;
2954    struct sljit_jump *jump;
2955    
2956    sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
2957    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2958    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
2959    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2960  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);  
2961  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2962  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(3));  
2963  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));  /* Searching for the first zero. */
2964    OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
2965    jump = JUMP(SLJIT_NOT_ZERO);
2966    /* Two byte sequence. */
2967    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
2968    sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
2969    
2970    JUMPHERE(jump);
2971    OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x400);
2972    OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_NOT_ZERO);
2973    /* This code runs only in 8 bit mode. No need to shift the value. */
2974    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
2975    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
2976    OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800);
2977    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
2978  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
2979  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
2980  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3));  /* Three byte sequence. */
2981    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
2982  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
2983  }  }
2984    
# Line 2311  struct sljit_jump *compare; Line 2993  struct sljit_jump *compare;
2993  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
2994    
2995  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
2996  jump = JUMP(SLJIT_C_NOT_ZERO);  jump = JUMP(SLJIT_NOT_ZERO);
2997  /* Two byte sequence. */  /* Two byte sequence. */
2998  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
2999  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
3000  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f);  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f);
3001    /* The upper 5 bits are known at this point. */
3002    compare = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x3);
3003  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
3004  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
3005  OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);  OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
 compare = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);  
3006  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
3007  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
3008    
3009  JUMPHERE(compare);  JUMPHERE(compare);
3010  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
3011  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 JUMPHERE(jump);  
3012    
3013  /* We only have types for characters less than 256. */  /* We only have types for characters less than 256. */
 OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_w)PRIV(utf8_table4) - 0xc0);  
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);  
 OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);  
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  
 }  
   
 #else /* COMPILE_PCRE8 */  
   
 #ifdef COMPILE_PCRE16  
 static void do_utfreadchar(compiler_common *common)  
 {  
 /* Fast decoding a UTF-16 character. TMP1 contains the first 16 bit char  
 of the character (>= 0xd800). Return char value in TMP1, length - 1 in TMP2. */  
 DEFINE_COMPILER;  
 struct sljit_jump *jump;  
   
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);  
 jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xdc00);  
 /* Do nothing, only return. */  
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  
   
3014  JUMPHERE(jump);  JUMPHERE(jump);
3015  /* Combine two 16 bit characters. */  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0);
3016  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
3017  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
 OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);  
 OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 10);  
 OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3ff);  
 OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);  
 OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));  
 OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000);  
3018  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
3019  }  }
 #endif /* COMPILE_PCRE16 */  
3020    
3021  #endif /* COMPILE_PCRE8 */  #endif /* COMPILE_PCRE8 */
3022    
# Line 2384  SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && si Line 3038  SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && si
3038    
3039  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);  sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
3040  OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);  OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
3041  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_w)PRIV(ucd_stage1));  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
3042  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
3043  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
3044  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
3045  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_stage2));  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2));
3046  OP1(SLJIT_MOV_UH, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);  OP1(SLJIT_MOV_UH, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);
3047  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
3048  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
3049  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);  sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
3050  }  }
# Line 2404  struct sljit_label *newlinelabel = NULL; Line 3058  struct sljit_label *newlinelabel = NULL;
3058  struct sljit_jump *start;  struct sljit_jump *start;
3059  struct sljit_jump *end = NULL;  struct sljit_jump *end = NULL;
3060  struct sljit_jump *nl = NULL;  struct sljit_jump *nl = NULL;
3061  #ifdef SUPPORT_UTF  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3062  struct sljit_jump *singlechar;  struct sljit_jump *singlechar;
3063  #endif  #endif
3064  jump_list *newline = NULL;  jump_list *newline = NULL;
# Line 2425  if (firstline) Line 3079  if (firstline)
3079      {      {
3080      mainloop = LABEL();      mainloop = LABEL();
3081      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
3082      end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);      end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
3083      OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));      OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
3084      OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));      OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
3085      CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop);      CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop);
3086      CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop);      CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop);
3087      JUMPHERE(end);      JUMPHERE(end);
3088      OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));      OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->first_line_end, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
3089      }      }
3090    else    else
3091      {      {
3092      end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);      end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
3093      mainloop = LABEL();      mainloop = LABEL();
3094      /* Continual stores does not cause data dependency. */      /* Continual stores does not cause data dependency. */
3095      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->first_line_end, STR_PTR, 0);
3096      read_char(common);      read_char_range(common, common->nlmin, common->nlmax, TRUE);
3097      check_newlinechar(common, common->nltype, &newline, TRUE);      check_newlinechar(common, common->nltype, &newline, TRUE);
3098      CMPTO(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0, mainloop);      CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, mainloop);
3099      JUMPHERE(end);      JUMPHERE(end);
3100      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->first_line_end, STR_PTR, 0);
3101      set_jumps(newline, LABEL());      set_jumps(newline, LABEL());
3102      }      }
3103    
# Line 2456  if (newlinecheck) Line 3110  if (newlinecheck)
3110    {    {
3111    newlinelabel = LABEL();    newlinelabel = LABEL();
3112    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
3113    end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);    end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
3114    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
3115    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
3116    COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);    OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
3117  #ifdef COMPILE_PCRE16  #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
3118    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
3119  #endif  #endif
3120    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
3121    nl = JUMP(SLJIT_JUMP);    nl = JUMP(SLJIT_JUMP);
# Line 2479  if (readuchar) Line 3133  if (readuchar)
3133    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
3134    
3135  if (newlinecheck)  if (newlinecheck)
3136    CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel);    CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel);
3137    
3138  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
3139  #if defined SUPPORT_UTF && defined COMPILE_PCRE8  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3140    #if defined COMPILE_PCRE8
3141  if (common->utf)  if (common->utf)
3142    {    {
3143    singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);    singlechar = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
3144    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
3145    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
3146    JUMPHERE(singlechar);    JUMPHERE(singlechar);
3147    }    }
3148  #endif  #elif defined COMPILE_PCRE16
 #if defined SUPPORT_UTF && defined COMPILE_PCRE16  
3149  if (common->utf)  if (common->utf)
3150    {    {
3151    singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);    singlechar = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
3152    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
3153    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
3154    COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);    OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
3155    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
3156    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
3157    JUMPHERE(singlechar);    JUMPHERE(singlechar);
3158    }    }
3159  #endif  #endif /* COMPILE_PCRE[8|16] */
3160    #endif /* SUPPORT_UTF && !COMPILE_PCRE32 */
3161  JUMPHERE(start);  JUMPHERE(start);
3162    
3163  if (newlinecheck)  if (newlinecheck)
# Line 2514  if (newlinecheck) Line 3169  if (newlinecheck)
3169  return mainloop;  return mainloop;
3170  }  }
3171    
3172  static SLJIT_INLINE BOOL fast_forward_first_two_chars(compiler_common *common, BOOL firstline)  #define MAX_N_CHARS 16
3173    #define MAX_N_BYTES 8
3174    
3175    static SLJIT_INLINE void add_prefix_byte(pcre_uint8 byte, pcre_uint8 *bytes)
3176  {  {
3177  DEFINE_COMPILER;  pcre_uint8 len = bytes[0];
3178  struct sljit_label *start;  int i;
 struct sljit_jump *quit;  
 struct sljit_jump *found;  
 pcre_int32 chars[4];  
 pcre_uchar *cc = common->start + 1 + IMM2_SIZE;  
 int location = 0;  
 pcre_int32 len, c, bit, caseless;  
 BOOL must_end;  
3179    
3180  #ifdef COMPILE_PCRE8  if (len == 255)
3181  union {    return;
3182      sljit_uh ascombined;  
3183      sljit_ub asuchars[2];  if (len == 0)
3184  } pair;    {
3185      bytes[0] = 1;
3186      bytes[1] = byte;
3187      return;
3188      }
3189    
3190    for (i = len; i > 0; i--)
3191      if (bytes[i] == byte)
3192        return;
3193    
3194    if (len >= MAX_N_BYTES - 1)
3195      {
3196      bytes[0] = 255;
3197      return;
3198      }
3199    
3200    len++;
3201    bytes[len] = byte;
3202    bytes[0] = len;
3203    }
3204    
3205    static int scan_prefix(compiler_common *common, pcre_uchar *cc, pcre_uint32 *chars, pcre_uint8 *bytes, int max_chars)
3206    {
3207    /* Recursive function, which scans prefix literals. */
3208    BOOL last, any, caseless;
3209    int len, repeat, len_save, consumed = 0;
3210    pcre_uint32 chr, mask;
3211    pcre_uchar *alternative, *cc_save, *oc;
3212    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3213    pcre_uchar othercase[8];
3214    #elif defined SUPPORT_UTF && defined COMPILE_PCRE16
3215    pcre_uchar othercase[2];
3216  #else  #else
3217  union {  pcre_uchar othercase[1];
     sljit_ui ascombined;  
     sljit_uh asuchars[2];  
 } pair;  
3218  #endif  #endif
3219    
3220  if (*(common->start + GET(common->start, 1)) == OP_ALT)  repeat = 1;
   return FALSE;  
   
3221  while (TRUE)  while (TRUE)
3222    {    {
3223    caseless = 0;    last = TRUE;
3224    must_end = TRUE;    any = FALSE;
3225    switch(*cc)    caseless = FALSE;
3226      switch (*cc)
3227      {      {
     case OP_CHAR:  
     must_end = FALSE;  
     cc++;  
     break;  
   
3228      case OP_CHARI:      case OP_CHARI:
3229      caseless = 1;      caseless = TRUE;
3230      must_end = FALSE;      case OP_CHAR:
3231        last = FALSE;
3232      cc++;      cc++;
3233      break;      break;
3234    
# Line 2573  while (TRUE) Line 3247  while (TRUE)
3247      cc++;      cc++;
3248      continue;      continue;
3249    
3250        case OP_ASSERT:
3251        case OP_ASSERT_NOT:
3252        case OP_ASSERTBACK:
3253        case OP_ASSERTBACK_NOT:
3254        cc = bracketend(cc);
3255        continue;
3256    
3257        case OP_PLUSI:
3258        case OP_MINPLUSI:
3259        case OP_POSPLUSI:
3260        caseless = TRUE;
3261      case OP_PLUS:      case OP_PLUS:
3262      case OP_MINPLUS:      case OP_MINPLUS:
3263      case OP_POSPLUS:      case OP_POSPLUS:
3264      cc++;      cc++;
3265      break;      break;
3266    
3267        case OP_EXACTI:
3268        caseless = TRUE;
3269      case OP_EXACT:      case OP_EXACT:
3270        repeat = GET2(cc, 1);
3271        last = FALSE;
3272      cc += 1 + IMM2_SIZE;      cc += 1 + IMM2_SIZE;
3273      break;      break;
3274    
3275      case OP_PLUSI:      case OP_QUERYI:
3276      case OP_MINPLUSI:      case OP_MINQUERYI:
3277      case OP_POSPLUSI:      case OP_POSQUERYI:
3278      caseless = 1;      caseless = TRUE;
3279        case OP_QUERY:
3280        case OP_MINQUERY:
3281        case OP_POSQUERY:
3282        len = 1;
3283      cc++;      cc++;
3284    #ifdef SUPPORT_UTF
3285        if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc);
3286    #endif
3287        max_chars = scan_prefix(common, cc + len, chars, bytes, max_chars);
3288        if (max_chars == 0)
3289          return consumed;
3290        last = FALSE;
3291      break;      break;
3292    
3293      case OP_EXACTI:      case OP_KET:
3294      caseless = 1;      cc += 1 + LINK_SIZE;
3295        continue;
3296    
3297        case OP_ALT:
3298        cc += GET(cc, 1);
3299        continue;
3300    
3301        case OP_ONCE:
3302        case OP_ONCE_NC:
3303        case OP_BRA:
3304        case OP_BRAPOS:
3305        case OP_CBRA:
3306        case OP_CBRAPOS:
3307        alternative = cc + GET(cc, 1);
3308        while (*alternative == OP_ALT)
3309          {
3310          max_chars = scan_prefix(common, alternative + 1 + LINK_SIZE, chars, bytes, max_chars);
3311          if (max_chars == 0)
3312            return consumed;
3313          alternative += GET(alternative, 1);
3314          }
3315    
3316        if (*cc == OP_CBRA || *cc == OP_CBRAPOS)
3317          cc += IMM2_SIZE;
3318        cc += 1 + LINK_SIZE;
3319        continue;
3320    
3321        case OP_CLASS:
3322    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3323        if (common->utf && !is_char7_bitset((const pcre_uint8 *)(cc + 1), FALSE)) return consumed;
3324    #endif
3325        any = TRUE;
3326        cc += 1 + 32 / sizeof(pcre_uchar);
3327        break;
3328    
3329        case OP_NCLASS:
3330    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3331        if (common->utf) return consumed;
3332    #endif
3333        any = TRUE;
3334        cc += 1 + 32 / sizeof(pcre_uchar);
3335        break;
3336    
3337    #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
3338        case OP_XCLASS:
3339    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3340        if (common->utf) return consumed;
3341    #endif
3342        any = TRUE;
3343        cc += GET(cc, 1);
3344        break;
3345    #endif
3346    
3347        case OP_DIGIT:
3348    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3349        if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_digit, FALSE))
3350          return consumed;
3351    #endif
3352        any = TRUE;
3353        cc++;
3354        break;
3355    
3356        case OP_WHITESPACE:
3357    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3358        if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_space, FALSE))
3359          return consumed;
3360    #endif
3361        any = TRUE;
3362        cc++;
3363        break;
3364    
3365        case OP_WORDCHAR:
3366    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3367        if (common->utf && !is_char7_bitset((const pcre_uint8 *)common->ctypes - cbit_length + cbit_word, FALSE))
3368          return consumed;
3369    #endif
3370        any = TRUE;
3371        cc++;
3372        break;
3373    
3374        case OP_NOT:
3375        case OP_NOTI:
3376        cc++;
3377        /* Fall through. */
3378        case OP_NOT_DIGIT:
3379        case OP_NOT_WHITESPACE:
3380        case OP_NOT_WORDCHAR:
3381        case OP_ANY:
3382        case OP_ALLANY:
3383    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3384        if (common->utf) return consumed;
3385    #endif
3386        any = TRUE;
3387        cc++;
3388        break;
3389    
3390    #ifdef SUPPORT_UCP
3391        case OP_NOTPROP:
3392        case OP_PROP:
3393    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3394        if (common->utf) return consumed;
3395    #endif
3396        any = TRUE;
3397        cc += 1 + 2;
3398        break;
3399    #endif
3400    
3401        case OP_TYPEEXACT:
3402        repeat = GET2(cc, 1);
3403      cc += 1 + IMM2_SIZE;      cc += 1 + IMM2_SIZE;
3404        continue;
3405    
3406        case OP_NOTEXACT:
3407        case OP_NOTEXACTI:
3408    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
3409        if (common->utf) return consumed;
3410    #endif
3411        any = TRUE;
3412        repeat = GET2(cc, 1);
3413        cc += 1 + IMM2_SIZE + 1;
3414      break;      break;
3415    
3416      default:      default:
3417      return FALSE;      return consumed;
3418        }
3419    
3420      if (any)
3421        {
3422    #if defined COMPILE_PCRE8
3423        mask = 0xff;
3424    #elif defined COMPILE_PCRE16
3425        mask = 0xffff;
3426    #elif defined COMPILE_PCRE32
3427        mask = 0xffffffff;
3428    #else
3429        SLJIT_ASSERT_STOP();
3430    #endif
3431    
3432        do
3433          {
3434          chars[0] = mask;
3435          chars[1] = mask;
3436          bytes[0] = 255;
3437    
3438          consumed++;
3439          if (--max_chars == 0)
3440            return consumed;
3441          chars += 2;
3442          bytes += MAX_N_BYTES;
3443          }
3444        while (--repeat > 0);
3445    
3446        repeat = 1;
3447        continue;
3448      }      }
3449    
3450    len = 1;    len = 1;
3451  #ifdef SUPPORT_UTF  #ifdef SUPPORT_UTF
3452    if (common->utf && HAS_EXTRALEN(cc[0])) len += GET_EXTRALEN(cc[0]);    if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc);
3453  #endif  #endif
3454    
3455    if (caseless && char_has_othercase(common, cc))    if (caseless && char_has_othercase(common, cc))
3456      {      {
3457      caseless = char_get_othercase_bit(common, cc);  #ifdef SUPPORT_UTF
3458      if (caseless == 0)      if (common->utf)
3459        return FALSE;        {
3460  #ifdef COMPILE_PCRE8        GETCHAR(chr, cc);
3461      caseless = ((caseless & 0xff) << 8) | (len - (caseless >> 8));        if ((int)PRIV(ord2utf)(char_othercase(common, chr), othercase) != len)
3462  #else          return consumed;
3463      if ((caseless & 0x100) != 0)        }
       caseless = ((caseless & 0xff) << 16) | (len - (caseless >> 9));  
3464      else      else
       caseless = ((caseless & 0xff) << 8) | (len - (caseless >> 9));  
3465  #endif  #endif
3466          {
3467          chr = *cc;
3468          othercase[0] = TABLE_GET(chr, common->fcc, chr);
3469          }
3470      }      }
3471    else    else
3472      caseless = 0;      caseless = FALSE;
3473    
3474    while (len > 0 && location < 2 * 2)    len_save = len;
3475      cc_save = cc;
3476      while (TRUE)
3477      {      {
3478      c = *cc;      oc = othercase;
3479      bit = 0;      do
     if (len == (caseless & 0xff))  
3480        {        {
3481        bit = caseless >> 8;        chr = *cc;
3482        c |= bit;  #ifdef COMPILE_PCRE32
3483          if (SLJIT_UNLIKELY(chr == NOTACHAR))
3484            return consumed;
3485    #endif
3486          add_prefix_byte((pcre_uint8)chr, bytes);
3487    
3488          mask = 0;
3489          if (caseless)
3490            {
3491            add_prefix_byte((pcre_uint8)*oc, bytes);
3492            mask = *cc ^ *oc;
3493            chr |= mask;
3494            }
3495    
3496    #ifdef COMPILE_PCRE32
3497          if (chars[0] == NOTACHAR && chars[1] == 0)
3498    #else
3499          if (chars[0] == NOTACHAR)
3500    #endif
3501            {
3502            chars[0] = chr;
3503            chars[1] = mask;
3504            }
3505          else
3506            {
3507            mask |= chars[0] ^ chr;
3508            chr |= mask;
3509            chars[0] = chr;
3510            chars[1] |= mask;
3511            }
3512    
3513          len--;
3514          consumed++;
3515          if (--max_chars == 0)
3516            return consumed;
3517          chars += 2;
3518          bytes += MAX_N_BYTES;
3519          cc++;
3520          oc++;
3521        }        }
3522        while (len > 0);
3523    
3524      chars[location] = c;      if (--repeat == 0)
3525      chars[location + 1] = bit;        break;
3526    
3527      len--;      len = len_save;
3528      location += 2;      cc = cc_save;
3529      cc++;      }
3530    
3531      repeat = 1;
3532      if (last)
3533        return consumed;
3534      }
3535    }
3536    
3537    static SLJIT_INLINE BOOL fast_forward_first_n_chars(compiler_common *common, BOOL firstline)
3538    {
3539    DEFINE_COMPILER;
3540    struct sljit_label *start;
3541    struct sljit_jump *quit;
3542    pcre_uint32 chars[MAX_N_CHARS * 2];
3543    pcre_uint8 bytes[MAX_N_CHARS * MAX_N_BYTES];
3544    pcre_uint8 ones[MAX_N_CHARS];
3545    int offsets[3];
3546    pcre_uint32 mask;
3547    pcre_uint8 *byte_set, *byte_set_end;
3548    int i, max, from;
3549    int range_right = -1, range_len = 3 - 1;
3550    sljit_ub *update_table = NULL;
3551    BOOL in_range;
3552    
3553    for (i = 0; i < MAX_N_CHARS; i++)
3554      {
3555      chars[i << 1] = NOTACHAR;
3556      chars[(i << 1) + 1] = 0;
3557      bytes[i * MAX_N_BYTES] = 0;
3558      }
3559    
3560    max = scan_prefix(common, common->start, chars, bytes, MAX_N_CHARS);
3561    
3562    if (max <= 1)
3563      return FALSE;
3564    
3565    for (i = 0; i < max; i++)
3566      {
3567      mask = chars[(i << 1) + 1];
3568      ones[i] = ones_in_half_byte[mask & 0xf];
3569      mask >>= 4;
3570      while (mask != 0)
3571        {
3572        ones[i] += ones_in_half_byte[mask & 0xf];
3573        mask >>= 4;
3574        }
3575      }
3576    
3577    in_range = FALSE;
3578    from = 0;   /* Prevent compiler "uninitialized" warning */
3579    for (i = 0; i <= max; i++)
3580      {
3581      if (in_range && (i - from) > range_len && (bytes[(i - 1) * MAX_N_BYTES] <= 4))
3582        {
3583        range_len = i - from;
3584        range_right = i - 1;
3585        }
3586    
3587      if (i < max && bytes[i * MAX_N_BYTES] < 255)
3588        {
3589        if (!in_range)
3590          {
3591          in_range = TRUE;
3592          from = i;
3593          }
3594        }
3595      else if (in_range)
3596        in_range = FALSE;
3597      }
3598    
3599    if (range_right >= 0)
3600      {
3601      update_table = (sljit_ub *)allocate_read_only_data(common, 256);
3602      if (update_table == NULL)
3603        return TRUE;
3604      memset(update_table, IN_UCHARS(range_len), 256);
3605    
3606      for (i = 0; i < range_len; i++)
3607        {
3608        byte_set = bytes + ((range_right - i) * MAX_N_BYTES);
3609        SLJIT_ASSERT(byte_set[0] > 0 && byte_set[0] < 255);
3610        byte_set_end = byte_set + byte_set[0];
3611        byte_set++;
3612        while (byte_set <= byte_set_end)
3613          {
3614          if (update_table[*byte_set] > IN_UCHARS(i))
3615            update_table[*byte_set] = IN_UCHARS(i);
3616          byte_set++;
3617          }
3618      }      }
3619      }
3620    
3621    if (location == 2 * 2)  offsets[0] = -1;
3622    /* Scan forward. */
3623    for (i = 0; i < max; i++)
3624      if (ones[i] <= 2) {
3625        offsets[0] = i;
3626      break;      break;
3627    else if (must_end)    }
3628    
3629    if (offsets[0] < 0 && range_right < 0)
3630      return FALSE;
3631    
3632    if (offsets[0] >= 0)
3633      {
3634      /* Scan backward. */
3635      offsets[1] = -1;
3636      for (i = max - 1; i > offsets[0]; i--)
3637        if (ones[i] <= 2 && i != range_right)
3638          {
3639          offsets[1] = i;
3640          break;
3641          }
3642    
3643      /* This case is handled better by fast_forward_first_char. */
3644      if (offsets[1] == -1 && offsets[0] == 0 && range_right < 0)
3645      return FALSE;      return FALSE;
3646    
3647      offsets[2] = -1;
3648      /* We only search for a middle character if there is no range check. */
3649      if (offsets[1] >= 0 && range_right == -1)
3650        {
3651        /* Scan from middle. */
3652        for (i = (offsets[0] + offsets[1]) / 2 + 1; i < offsets[1]; i++)
3653          if (ones[i] <= 2)
3654            {
3655            offsets[2] = i;
3656            break;
3657            }
3658    
3659        if (offsets[2] == -1)
3660          {
3661          for (i = (offsets[0] + offsets[1]) / 2; i > offsets[0]; i--)
3662            if (ones[i] <= 2)
3663              {
3664              offsets[2] = i;
3665              break;
3666              }
3667          }
3668        }
3669    
3670      SLJIT_ASSERT(offsets[1] == -1 || (offsets[0] < offsets[1]));
3671      SLJIT_ASSERT(offsets[2] == -1 || (offsets[0] < offsets[2] && offsets[1] > offsets[2]));
3672    
3673      chars[0] = chars[offsets[0] << 1];
3674      chars[1] = chars[(offsets[0] << 1) + 1];
3675      if (offsets[2] >= 0)
3676        {
3677        chars[2] = chars[offsets[2] << 1];
3678        chars[3] = chars[(offsets[2] << 1) + 1];
3679        }
3680      if (offsets[1] >= 0)
3681        {
3682        chars[4] = chars[offsets[1] << 1];
3683        chars[5] = chars[(offsets[1] << 1) + 1];
3684        }
3685    }    }
3686    
3687    max -= 1;
3688  if (firstline)  if (firstline)
3689    {    {
3690    SLJIT_ASSERT(common->first_line_end != 0);    SLJIT_ASSERT(common->first_line_end != 0);
3691      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->first_line_end);
3692    OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);    OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
3693    OP2(SLJIT_SUB, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, SLJIT_IMM, 1);    OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max));
3694      quit = CMP(SLJIT_LESS_EQUAL, STR_END, 0, TMP1, 0);
3695      OP1(SLJIT_MOV, STR_END, 0, TMP1, 0);
3696      JUMPHERE(quit);
3697    }    }
3698  else  else
3699    OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, 1);    OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max));
3700    
3701  start = LABEL();  #if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
3702  quit = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);  if (range_right >= 0)
3703  #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED    OP1(SLJIT_MOV, RETURN_ADDR, 0, SLJIT_IMM, (sljit_sw)update_table);
 #ifdef COMPILE_PCRE8  
 OP1(SLJIT_MOV_UH, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);  
 #else /* COMPILE_PCRE8 */  
 OP1(SLJIT_MOV_UI, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);  
3704  #endif  #endif
3705    
3706  #else /* SLJIT_UNALIGNED */  start = LABEL();
3707