Replaces Location::ToStackSlotAddress() with Location::ToStackSlotOffset()

runtime/vm/assembler_x64.h

 // Copyright (c) 2013, 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_ASSEMBLER_X64_H_
 #define VM_ASSEMBLER_X64_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_x64.h directly; use assembler.h instead.
 #endif
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/constants_x64.h"
+#include "vm/locations.h"
 
 namespace dart {
 
 // Forward declarations.
 class RuntimeEntry;
+class Location;
 
 class Immediate : public ValueObject {
  public:
   explicit Immediate(int64_t value) : value_(value) { }
 
   Immediate(const Immediate& other) : ValueObject(), value_(other.value_) { }
 
   int64_t value() const { return value_; }
 
   bool is_int8() const { return Utils::IsInt(8, value_); }
@@ skipping 54 matching lines @@
     memmove(&encoding_[0], &other.encoding_[0], other.length_);
   }
 
   Operand& operator=(const Operand& other) {
     length_ = other.length_;
     rex_ = other.rex_;
     memmove(&encoding_[0], &other.encoding_[0], other.length_);
     return *this;
   }
 
-  bool Equals(const Operand& other) {
+  bool Equals(const Operand& other) const {
     if (length_ != other.length_) return false;
     if (rex_ != other.rex_) return false;
     for (uint8_t i = 0; i < length_; i++) {
       if (encoding_[i] != other.encoding_[i]) return false;
     }
     return true;
   }
 
  protected:
   Operand() : length_(0), rex_(REX_NONE) { }  // Needed by subclass Address.
@@ skipping 96 matching lines @@
       SetDisp8(disp);
     } else {
       SetModRM(2, RSP);
       SetSIB(scale, index, base);
       SetDisp32(disp);
     }
   }
 
   Address(const Address& other) : Operand(other) { }
 
+  static Address StackSlotAddress(const Location& stack_slot);
+
   Address& operator=(const Address& other) {
     Operand::operator=(other);
     return *this;
   }
 };
 
 
 class FieldAddress : public Address {
  public:
   FieldAddress(Register base, int32_t disp)
@@ skipping 702 matching lines @@
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_X64_H_