Adds subract, move wide immediate instructions to ARM64.

runtime/vm/constants_arm64.h

 // Copyright (c) 2014, 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_CONSTANTS_ARM64_H_
 #define VM_CONSTANTS_ARM64_H_
 
 #include "platform/assert.h"
 
 namespace dart {
@@ skipping 263 matching lines @@
   MoveWideMask = 0x1f800000,
   MoveWideFixed = DPImmediateFixed | B25 | B23,
   MOVN = MoveWideFixed,
   MOVZ = MoveWideFixed | B30,
   MOVK = MoveWideFixed | B30 | B29,
 };
 
 
 // C3.5.1
 enum AddSubShiftExtOp {
-  AddSubShiftExtMask = 0x1f200000,
+  AddSubShiftExtMask = 0x1f000000,
   AddSubShiftExtFixed = DPRegisterFixed | B24,
   ADD = AddSubShiftExtFixed,
   SUB = AddSubShiftExtFixed | B30,
 };
 
 #define APPLY_OP_LIST(_V)                                                      \
 _V(DPImmediate)                                                                \
 _V(CompareBranch)                                                              \
 _V(LoadStore)                                                                  \
 _V(DPRegister)                                                                 \
@@ skipping 61 matching lines @@
   kImm3Bits = 3,
   kImm6Shift = 10,
   kImm6Bits = 6,
   kImm12Shift = 10,
   kImm12Bits = 12,
   kImm12ShiftShift = 22,
   kImm12ShiftBits = 2,
   kImm16Shift = 5,
   kImm16Bits = 16,
 
+  kHWShift = 21,
+  kHWBits = 2,
+
   // Shift and Extend.
   kShiftExtendShift = 21,
   kShiftExtendBits = 1,
   kShiftTypeShift = 22,
   kShiftTypeBits = 2,
   kExtendTypeShift = 13,
   kExtendTypeBits = 3,
 
   // Hint Fields.
   kHintCRmShift = 8,
@@ skipping 65 matching lines @@
                                         Bits(kRmShift, kRmBits)); }
 
   // Immediates
   inline int Imm3Field() const { return Bits(kImm3Shift, kImm3Bits); }
   inline int Imm6Field() const { return Bits(kImm6Shift, kImm6Bits); }
   inline int Imm12Field() const { return Bits(kImm12Shift, kImm12Bits); }
   inline int Imm16Field() const { return Bits(kImm16Shift, kImm16Bits); }
 
   inline int Imm12ShiftField() const {
     return Bits(kImm12ShiftShift, kImm12ShiftBits); }
+  inline int HWField() const { return Bits(kHWShift, kHWBits); }
 
   // Shift and Extend.
   inline bool IsShift() const { return (Bit(kShiftExtendShift) == 0); }
   inline bool IsExtend() const { return (Bit(kShiftExtendShift) == 1); }
   inline Shift ShiftTypeField() const {
       return static_cast<Shift>(Bits(kShiftTypeShift, kShiftTypeBits)); }
   inline Extend ExtendTypeField() const {
       return static_cast<Extend>(Bits(kExtendTypeShift, kExtendTypeBits)); }
   inline int ShiftAmountField() const { return Imm6Field(); }
   inline int ExtShiftAmountField() const { return Imm3Field(); }
@@ skipping 49 matching lines @@
   static Instr* At(uword pc) { return reinterpret_cast<Instr*>(pc); }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_ARM64_H_