Implement bigint absAdd, absSub, mulAdd, sqrAdd, estQuotientDigit intrinsics,

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 5344 matching lines @@
   intptr_t Used() const;
   void SetUsed(intptr_t value) const;
   uint32_t DigitAt(intptr_t index) const;
   void SetDigitAt(intptr_t index, uint32_t value) const;
 
   const char* ToDecCString(uword (*allocator)(intptr_t size)) const;
   const char* ToHexCString(uword (*allocator)(intptr_t size)) const;
 
   static const intptr_t kExtraDigits = 4;  // Same as _Bigint.EXTRA_DIGITS
   static const intptr_t kBitsPerDigit = 32;  // Same as _Bigint.DIGIT_BITS
+  static const intptr_t kBytesPerDigit = 4;
   static const int64_t kDigitBase = 1LL << kBitsPerDigit;
   static const int64_t kDigitMask = kDigitBase - 1;
 
   static RawBigint* New(Heap::Space space = Heap::kNew);
 
   static RawBigint* NewFromInt64(int64_t value,
                                   Heap::Space space = Heap::kNew);
 
   static RawBigint* NewFromUint64(uint64_t value,
                                    Heap::Space space = Heap::kNew);
@@ skipping 2094 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_