[arm, arm64] Implemented unaligned scalar float access.

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 RUNTIME_VM_CONSTANTS_ARM64_H_
 #define RUNTIME_VM_CONSTANTS_ARM64_H_
 
 #include "platform/assert.h"
 
 namespace dart {
@@ skipping 602 matching lines @@
 // C3.6.28
 enum FPImmOp {
   FPImmMask = 0x5f201c00,
   FPImmFixed = FPFixed | B21 | B12,
   FMOVSI = FPImmFixed,
   FMOVDI = FPImmFixed | B22,
 };
 
 // C3.6.30
 enum FPIntCvtOp {
-  FPIntCvtMask = 0x5f20fc00,
+  FPIntCvtMask = 0x5f00fc00,
   FPIntCvtFixed = FPFixed | B21,
+  FMOVRS = FPIntCvtFixed | B18 | B17,
+  FMOVSR = FPIntCvtFixed | B18 | B17 | B16,
   FMOVRD = FPIntCvtFixed | B22 | B18 | B17,
   FMOVDR = FPIntCvtFixed | B22 | B18 | B17 | B16,
   FCVTZDS = FPIntCvtFixed | B22 | B20 | B19,
   SCVTFD = FPIntCvtFixed | B22 | B17,
 };
 
 
 #define APPLY_OP_LIST(_V)                                                      \
   _V(DPImmediate)                                                              \
   _V(CompareBranch)                                                            \
@@ skipping 490 matching lines @@
   static Instr* At(uword pc) { return reinterpret_cast<Instr*>(pc); }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_CONSTANTS_ARM64_H_