Support constant folding of instructions with constant smi values.

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 3255 matching lines @@
   virtual int64_t AsInt64Value() const;
 
   // Returns 0, -1 or 1.
   virtual int CompareWith(const Integer& other) const;
 
   // Return the most compact presentation of an integer.
   RawInteger* AsInteger() const;
   // Return an integer in the form of a RawBigint.
   RawBigint* AsBigint() const;
 
-  RawInteger* BinaryOp(Token::Kind operation, const Integer& other) const;
+  RawInteger* ArithmeticOp(Token::Kind operation, const Integer& other) const;
+  RawInteger* BitOp(Token::Kind operation, const Integer& other) const;
 
   OBJECT_IMPLEMENTATION(Integer, Number);
   friend class Class;
 };
 
 
 class Smi : public Integer {
  public:
   static const intptr_t kBits = kSmiBits;
   static const intptr_t kMaxValue = kSmiMax;
@@ skipping 35 matching lines @@
   }
 
   static bool IsValid(intptr_t value) {
     return (value >= kMinValue) && (value <= kMaxValue);
   }
 
   static bool IsValid64(int64_t value) {
     return (value >= kMinValue) && (value <= kMaxValue);
   }
 
+  RawInteger* ShiftOp(Token::Kind kind, const Smi& other) const;
+
  private:
   static intptr_t ValueFromRaw(uword raw_value) {
     intptr_t value = raw_value;
     ASSERT((value & kSmiTagMask) == kSmiTag);
     return (value >> kSmiTagShift);
   }
   static cpp_vtable handle_vtable_;
 
   OBJECT_IMPLEMENTATION(Smi, Integer);
   friend class Api;  // For ValueFromRaw
@@ skipping 67 matching lines @@
   static intptr_t InstanceSize() { return 0; }
 
   static intptr_t InstanceSize(intptr_t len) {
     ASSERT(0 <= len && len <= kMaxElements);
     return RoundedAllocationSize(sizeof(RawBigint) + (len * kBytesPerElement));
   }
 
   static RawBigint* New(const String& str, Heap::Space space = Heap::kNew);
   static RawBigint* New(int64_t value, Heap::Space space = Heap::kNew);
 
-  RawBigint* BinaryOp(Token::Kind operation, const Bigint& other) const;
+  RawBigint* ArithmeticOp(Token::Kind operation, const Bigint& other) const;
 
  private:
   Chunk GetChunkAt(intptr_t i) const {
     return *ChunkAddr(i);
   }
 
   void SetChunkAt(intptr_t i, Chunk newValue) const {
     *ChunkAddr(i) = newValue;
   }
 
@@ skipping 2220 matching lines @@
     if (this->CharAt(i) != str.CharAt(begin_index + i)) {
       return false;
     }
   }
   return true;
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_