Port irregexp bytecode compiler and interpreter from V8 r24065.

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 7633 matching lines @@
   class FlagsBits : public BitField<intptr_t, kFlagsPos, kFlagsSize> {};
 
   bool is_initialized() const { return (type() != kUnitialized); }
   bool is_simple() const { return (type() == kSimple); }
   bool is_complex() const { return (type() == kComplex); }
 
   bool is_global() const { return (flags() & kGlobal); }
   bool is_ignore_case() const { return (flags() & kIgnoreCase); }
   bool is_multi_line() const { return (flags() & kMultiLine); }
 
+  intptr_t num_registers() const { return raw_ptr()->num_registers_; }
+
   RawString* pattern() const { return raw_ptr()->pattern_; }
   RawSmi* num_bracket_expressions() const {
     return raw_ptr()->num_bracket_expressions_;
   }
 
+  RawTypedData* bytecode(bool is_one_byte) const {
+    return is_one_byte ? raw_ptr()->one_byte_bytecode_
+                       : raw_ptr()->two_byte_bytecode_;
+  }
+
   static intptr_t function_offset(intptr_t cid) {
     switch (cid) {
       case kOneByteStringCid:
         return OFFSET_OF(RawJSRegExp, one_byte_function_);
       case kTwoByteStringCid:
         return OFFSET_OF(RawJSRegExp, two_byte_function_);
       case kExternalOneByteStringCid:
          return OFFSET_OF(RawJSRegExp, external_one_byte_function_);
       case kExternalTwoByteStringCid:
         return OFFSET_OF(RawJSRegExp, external_two_byte_function_);
     }
 
     UNREACHABLE();
     return -1;
   }
 
   RawFunction** FunctionAddr(intptr_t cid) const {
     return reinterpret_cast<RawFunction**>(
           FieldAddrAtOffset(function_offset(cid)));
   }
 
   RawFunction* function(intptr_t cid) const {
     return *FunctionAddr(cid);
   }
 
   void set_pattern(const String& pattern) const;
   void set_function(intptr_t cid, const Function& value) const;
+  void set_bytecode(bool is_one_byte, const TypedData& bytecode) const;
 
   void set_num_bracket_expressions(intptr_t value) const;
   void set_is_global() const { set_flags(flags() | kGlobal); }
   void set_is_ignore_case() const { set_flags(flags() | kIgnoreCase); }
   void set_is_multi_line() const { set_flags(flags() | kMultiLine); }
   void set_is_simple() const { set_type(kSimple); }
   void set_is_complex() const { set_type(kComplex); }
+  void set_num_registers(intptr_t value) const {
+    StoreNonPointer(&raw_ptr()->num_registers_, value);
+  }
 
   void* GetDataStartAddress() const;
   static RawJSRegExp* FromDataStartAddress(void* data);
   const char* Flags() const;
 
   virtual bool CanonicalizeEquals(const Instance& other) const;
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawJSRegExp));
   }
@@ skipping 273 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_