Irregexp:...

src/interpreter-irregexp.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 173 matching lines @@
         return false;
       BYTECODE(SUCCEED)
         return true;
       BYTECODE(ADVANCE_CP)
         current += Load32(pc + 1);
         pc += BC_ADVANCE_CP_LENGTH;
         break;
       BYTECODE(GOTO)
         pc = code_base + Load32(pc + 1);
         break;
+      BYTECODE(CHECK_GREEDY)
+        if (current == backtrack_sp[-1]) {
+          backtrack_sp--;
+          backtrack_stack_space++;
+          pc = code_base + Load32(pc + 1);
+        } else {
+          pc += BC_CHECK_GREEDY_LENGTH;
+        }
+        break;
       BYTECODE(LOAD_CURRENT_CHAR) {
         int pos = current + Load32(pc + 1);
         if (pos >= subject.length()) {
           pc = code_base + Load32(pc + 5);
         } else {
           current_char = subject[pos];
           pc += BC_LOAD_CURRENT_CHAR_LENGTH;
         }
         break;
       }
+      BYTECODE(LOAD_CURRENT_CHAR_UNCHECKED) {
+        int pos = current + Load32(pc + 1);
+        current_char = subject[pos];
+        pc += BC_LOAD_CURRENT_CHAR_UNCHECKED_LENGTH;
+        break;
+      }
       BYTECODE(CHECK_CHAR) {
         int c = Load16(pc + 1);
         if (c == current_char) {
           pc = code_base + Load32(pc + 3);
         } else {
           pc += BC_CHECK_CHAR_LENGTH;
         }
         break;
       }
       BYTECODE(CHECK_NOT_CHAR) {
@@ skipping 188 matching lines @@
       Vector<const uc16>(subject16->GetTwoByteData(), subject16->length());
   if (start_position != 0) previous_char = subject_vector[start_position - 1];
   return RawMatch(code_base,
                   subject_vector,
                   registers,
                   start_position,
                   previous_char);
 }
 
 } }  // namespace v8::internal