Initial SIMDBC interpreter.

runtime/vm/code_patcher_dbc.cc

Index: runtime/vm/code_patcher_dbc.cc
diff --git a/runtime/vm/code_patcher_arm.cc b/runtime/vm/code_patcher_dbc.cc
similarity index 94%
copy from runtime/vm/code_patcher_arm.cc
copy to runtime/vm/code_patcher_dbc.cc
index 7e0e8eaddbbcb6bc1d4ba99cd2b2762b7119f924..f978d54ff20f9454209888d947a414f14f099a64 100644
--- a/runtime/vm/code_patcher_arm.cc
+++ b/runtime/vm/code_patcher_dbc.cc
@@ -1,9 +1,9 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, 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_ARM.
-#if defined(TARGET_ARCH_ARM)
+#include "vm/globals.h"  // Needed here to get TARGET_ARCH_DBC.
+#if defined(TARGET_ARCH_DBC)
 
 #include "vm/code_patcher.h"
 
@@ -50,7 +50,7 @@ RawCode* CodePatcher::GetInstanceCallAt(uword return_address,
 
 
 intptr_t CodePatcher::InstanceCallSizeInBytes() {
-  // The instance call instruction sequence has a variable size on ARM.
+  // The instance call instruction sequence has a variable size on DBC.

[zra, 2016/04/08 22:37:34]

Does it?

[Vyacheslav Egorov (Google), 2016/04/11 10:49:10]

Removed the comment

   UNREACHABLE();
   return 0;
 }
@@ -104,4 +104,4 @@ RawCode* CodePatcher::GetNativeCallAt(uword return_address,
 
 }  // namespace dart
 
-#endif  // defined TARGET_ARCH_ARM
+#endif  // defined TARGET_ARCH_DBC