Replace OS::MemCopy with OS::MemMove (just as fast but more flexible).

src/deoptimizer.cc

 // Copyright 2013 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 2354 matching lines @@
   // The bits encode the sign in the least significant bit.
   bool is_negative = (bits & 1) == 1;
   int32_t result = bits >> 1;
   return is_negative ? -result : result;
 }
 
 
 Handle<ByteArray> TranslationBuffer::CreateByteArray(Factory* factory) {
   int length = contents_.length();
   Handle<ByteArray> result = factory->NewByteArray(length, TENURED);
-  memcpy(result->GetDataStartAddress(), contents_.ToVector().start(), length);
+  OS::MemCopy(
+      result->GetDataStartAddress(), contents_.ToVector().start(), length);
   return result;
 }
 
 
 void Translation::BeginConstructStubFrame(int literal_id, unsigned height) {
   buffer_->Add(CONSTRUCT_STUB_FRAME, zone());
   buffer_->Add(literal_id, zone());
   buffer_->Add(height, zone());
 }
 
@@ skipping 385 matching lines @@
 
 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) {
   v->VisitPointer(BitCast<Object**>(&function_));
   v->VisitPointers(parameters_, parameters_ + parameters_count_);
   v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal