Beings adding SIMD support to arm64.

runtime/vm/intermediate_language_x64.cc

 // 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.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 2246 matching lines @@
                      slow_path->entry_label(),
                      Assembler::kFarJump,
                      result,
                      PP);
       __ Bind(slow_path->exit_label());
       __ movq(temp, FieldAddress(instance_reg, offset_in_bytes()));
       __ movsd(value, FieldAddress(temp, Double::value_offset()));
       __ movsd(FieldAddress(result, Double::value_offset()), value);
       __ jmp(&done);
     }
+
     {
       __ Bind(&load_float32x4);
       BoxFloat32x4SlowPath* slow_path = new BoxFloat32x4SlowPath(this);
       compiler->AddSlowPathCode(slow_path);
 
       __ TryAllocate(compiler->float32x4_class(),
                      slow_path->entry_label(),
                      Assembler::kFarJump,
                      result,
                      PP);
       __ Bind(slow_path->exit_label());
       __ movq(temp, FieldAddress(instance_reg, offset_in_bytes()));
       __ movups(value, FieldAddress(temp, Float32x4::value_offset()));
       __ movups(FieldAddress(result, Float32x4::value_offset()), value);
       __ jmp(&done);
     }
+
     {
       __ Bind(&load_float64x2);
-
       BoxFloat64x2SlowPath* slow_path = new BoxFloat64x2SlowPath(this);
       compiler->AddSlowPathCode(slow_path);
 
       __ TryAllocate(compiler->float64x2_class(),
                      slow_path->entry_label(),
                      Assembler::kFarJump,
                      result,
                      temp);
       __ Bind(slow_path->exit_label());
       __ movq(temp, FieldAddress(instance_reg, offset_in_bytes()));
@@ skipping 3485 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(ArgumentCount());  // Discard arguments.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64