[Pcre-svn] [94] code/trunk/src: More JIT fixes.

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To: pcre-svn
題目: [Pcre-svn] [94] code/trunk/src: More JIT fixes.
Revision: 94
          http://www.exim.org/viewvc/pcre2?view=rev&revision=94
Author:   zherczeg
Date:     2014-10-05 07:20:41 +0100 (Sun, 05 Oct 2014)


Log Message:
-----------
More JIT fixes.

Modified Paths:
--------------
    code/trunk/src/pcre2_jit_compile.c
    code/trunk/src/pcre2_jit_match.c
    code/trunk/src/pcre2_jit_misc.c


Modified: code/trunk/src/pcre2_jit_compile.c
===================================================================
--- code/trunk/src/pcre2_jit_compile.c    2014-10-04 17:05:21 UTC (rev 93)
+++ code/trunk/src/pcre2_jit_compile.c    2014-10-05 06:20:41 UTC (rev 94)
@@ -196,7 +196,7 @@
   sljit_uw *read_only_data[JIT_NUMBER_OF_COMPILE_MODES];
   sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];
   pcre2_jit_callback callback;
-  void *userdata;
+  void *callback_data;
   sljit_ui top_bracket;
   sljit_ui limit_match;
 } executable_functions;
@@ -5769,7 +5769,7 @@


return cc + 32 / sizeof(PCRE2_UCHAR);

-#if defined SUPPORT_UTF || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
+#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
case OP_XCLASS:
compile_xclass_matchingpath(common, cc + LINK_SIZE, backtracks);
return cc + GET(cc, 0) - 1;
@@ -6355,16 +6355,17 @@
{
DEFINE_COMPILER;
backtrack_common *backtrack;
+sljit_si mov_opcode;

PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);

allocate_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));

+SLJIT_ASSERT(common->capture_last_ptr != 0);
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
-SLJIT_ASSERT(common->capture_last_ptr != 0);
-OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_number), SLJIT_IMM, cc[1]);
-OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_last), TMP2, 0);
+OP1(SLJIT_MOV_UI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_number), SLJIT_IMM, cc[1]);
+OP1(SLJIT_MOV_UI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_last), TMP2, 0);

/* These pointer sized fields temporarly stores internal variables. */
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
@@ -6373,8 +6374,9 @@

if (common->mark_ptr != 0)
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr));
-OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(pattern_position), SLJIT_IMM, GET(cc, 2));
-OP1(SLJIT_MOV_SI, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(next_item_length), SLJIT_IMM, GET(cc, 2 + LINK_SIZE));
+mov_opcode = (sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_UI : SLJIT_MOV;
+OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(pattern_position), SLJIT_IMM, GET(cc, 2));
+OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(next_item_length), SLJIT_IMM, GET(cc, 2 + LINK_SIZE));
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(mark), (common->mark_ptr != 0) ? TMP2 : SLJIT_IMM, 0);

 /* Needed to save important temporary registers. */
@@ -6971,13 +6973,6 @@
     ket = OP_KETRMIN;
   }


-if ((opcode == OP_COND || opcode == OP_SCOND) && cc[1 + LINK_SIZE] == OP_FALSE)
- {
- /* Drop this bracket_backtrack. */
- parent->top = backtrack->prev;
- return matchingpath + 1 + LINK_SIZE + repeat_length;
- }
-
matchingpath = ccbegin + 1 + LINK_SIZE;
SLJIT_ASSERT(ket == OP_KET || ket == OP_KETRMAX || ket == OP_KETRMIN);
SLJIT_ASSERT(!((bra == OP_BRAZERO && ket == OP_KETRMIN) || (bra == OP_BRAMINZERO && ket == OP_KETRMAX)));
@@ -6985,7 +6980,11 @@

 has_alternatives = *cc == OP_ALT;
 if (SLJIT_UNLIKELY(opcode == OP_COND || opcode == OP_SCOND))
-  has_alternatives = (*matchingpath == OP_RREF || *matchingpath == OP_DNRREF) ? FALSE : TRUE;
+  {
+  SLJIT_COMPILE_ASSERT(OP_DNRREF == OP_RREF + 1 && OP_FALSE == OP_RREF + 2 && OP_TRUE == OP_RREF + 3,
+    compile_time_checks_must_be_grouped_together);
+  has_alternatives = (*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE) ? FALSE : TRUE;
+  }


 if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
   opcode = OP_SCOND;
@@ -7243,14 +7242,21 @@
     add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), JUMP(SLJIT_ZERO));
     matchingpath += 1 + 2 * IMM2_SIZE;
     }
-  else if (*matchingpath == OP_RREF || *matchingpath == OP_DNRREF)
+  else if (*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE)
     {
     /* Never has other case. */
     BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL;
     SLJIT_ASSERT(!has_alternatives);


-    if (*matchingpath == OP_RREF)
+    if (*matchingpath == OP_TRUE)
       {
+      stacksize = 1;
+      matchingpath++;
+      }
+    else if (*matchingpath == OP_FALSE)
+      stacksize = 0;
+    else if (*matchingpath == OP_RREF)
+      {
       stacksize = GET2(matchingpath, 1);
       if (common->currententry == NULL)
         stacksize = 0;
@@ -10023,7 +10029,7 @@
 /* Copy the limit of allowed recursions. */
 OP1(SLJIT_MOV, COUNT_MATCH, 0, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH);
 if (common->capture_last_ptr != 0)
-  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, -1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, 0);


if (common->needs_start_ptr)
{

Modified: code/trunk/src/pcre2_jit_match.c
===================================================================
--- code/trunk/src/pcre2_jit_match.c    2014-10-04 17:05:21 UTC (rev 93)
+++ code/trunk/src/pcre2_jit_match.c    2014-10-05 06:20:41 UTC (rev 94)
@@ -155,6 +155,9 @@
   oveccount = max_oveccount;
 arguments.oveccount = oveccount << 1;


+if (jit_stack == NULL && functions->callback != NULL)
+  jit_stack = functions->callback(functions->callback_data);
+
 convert_executable_func.executable_func = functions->executable_funcs[index];
 if (jit_stack != NULL)
   {
@@ -169,12 +172,9 @@
 match_data->code = re;
 match_data->subject = subject;
 match_data->rc = rc;
-/*
-match_data->startchar = start_match - subject;
-match_data->leftchar = mb->start_used_ptr - subject;
-match_data->rightchar = ((mb->last_used_ptr > mb->end_match_ptr)?
-          mb->last_used_ptr : mb->end_match_ptr) - subject;
-*/
+match_data->startchar = 0;
+match_data->leftchar = 0;
+match_data->rightchar = 0;
 match_data->mark = arguments.mark_ptr;


return match_data->rc;

Modified: code/trunk/src/pcre2_jit_misc.c
===================================================================
--- code/trunk/src/pcre2_jit_misc.c    2014-10-04 17:05:21 UTC (rev 93)
+++ code/trunk/src/pcre2_jit_misc.c    2014-10-05 06:20:41 UTC (rev 94)
@@ -108,8 +108,8 @@
 *         Assign a JIT stack to a pattern        *
 *************************************************/


-PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION     
-pcre2_jit_stack_assign(const pcre2_code *code, pcre2_jit_callback callback, 
+PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION
+pcre2_jit_stack_assign(const pcre2_code *code, pcre2_jit_callback callback,
   void *callback_data)
 {
 #ifndef SUPPORT_JIT
@@ -120,11 +120,19 @@


#else /* SUPPORT_JIT */

-/* Dummy code */
-code=code;
-callback=callback;
-callback_data=callback_data;
+pcre2_real_code *re = (pcre2_real_code *)code;
+executable_functions *functions;

+if (re == NULL)
+ return;
+
+functions = (executable_functions *)re->executable_jit;
+if (functions != NULL)
+ {
+ functions->callback = callback;
+ functions->callback_data = callback_data;
+ }
+
#endif /* SUPPORT_JIT */
}

@@ -133,7 +141,7 @@
 *               Free a JIT stack                 *
 *************************************************/


-PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION     
+PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION
 pcre2_jit_stack_free(pcre2_jit_stack *jit_stack)
 {
 #ifndef SUPPORT_JIT