ARM64: Add NEON support

test/cctest/cctest.h

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 107 matching lines @@
     if (!initialize_called_) InitializeVM();
     return i_isolate();
   }
 
   static i::Isolate* i_isolate() {
     return reinterpret_cast<i::Isolate*>(isolate());
   }
 
   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();
 
   static v8::base::RandomNumberGenerator* random_number_generator();
 
   static v8::Local<v8::Object> global();
 
   static v8::ArrayBuffer::Allocator* array_buffer_allocator() {
     return allocator_;
@@ skipping 24 matching lines @@
   TestFunction* callback_;
   const char* file_;
   const char* name_;
   bool enabled_;
   bool initialize_;
   CcTest* prev_;
   static CcTest* last_;
   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_;
 };
 
 // Switches between all the Api tests using the threading support.
 // In order to get a surprising but repeatable pattern of thread
 // switching it has extra semaphores to control the order in which
 // the tests alternate, not relying solely on the big V8 lock.
 //
 // A test is augmented with calls to ApiTestFuzzer::Fuzz() in its
 // callbacks.  This will have no effect when we are not running the
@@ skipping 422 matching lines @@
 
   const char* data() const { return data_; }
 
   size_t length() const { return strlen(data_); }
 
  private:
   const char* data_;
 };
 
 #endif  // ifndef CCTEST_H_