ARM64: Add NEON support

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index 7d8ad59a269c61055597c6b9957324649a00a4b7..3c1a72b59a829bb65b53c91879234369d8e5ee3e 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -125,6 +125,8 @@ class CcTest {
 
   static i::Heap* heap();
 
+  static bool sim_test_trace() { return sim_test_trace_; }
+
   static void CollectGarbage(i::AllocationSpace space);
   static void CollectAllGarbage(int flags);
   static void CollectAllAvailableGarbage();
@@ -169,6 +171,7 @@ class CcTest {
   static v8::ArrayBuffer::Allocator* allocator_;
   static v8::Isolate* isolate_;
   static bool initialize_called_;
+  static bool sim_test_trace_;

[bbudge, 2017/01/31 01:41:31]

As far as I can tell, this will always be false.

[martyn.capewell, 2017/02/03 11:01:30]

This is a leftover from generating the reference trace outputs. I'll remove it
all, as I don't expect V8 to need to regenerate.

   static v8::base::Atomic32 isolate_used_;
 };