Reland 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils"

src/regexp-stack.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "v8.h"
 #include "regexp-stack.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 15 matching lines @@
 }
 
 
 RegExpStack::~RegExpStack() {
   thread_local_.Free();
 }
 
 
 char* RegExpStack::ArchiveStack(char* to) {
   size_t size = sizeof(thread_local_);
-  OS::MemCopy(reinterpret_cast<void*>(to), &thread_local_, size);
+  MemCopy(reinterpret_cast<void*>(to), &thread_local_, size);
   thread_local_ = ThreadLocal();
   return to + size;
 }
 
 
 char* RegExpStack::RestoreStack(char* from) {
   size_t size = sizeof(thread_local_);
-  OS::MemCopy(&thread_local_, reinterpret_cast<void*>(from), size);
+  MemCopy(&thread_local_, reinterpret_cast<void*>(from), size);
   return from + size;
 }
 
 
 void RegExpStack::Reset() {
   if (thread_local_.memory_size_ > kMinimumStackSize) {
     DeleteArray(thread_local_.memory_);
     thread_local_ = ThreadLocal();
   }
 }
 
 
 void RegExpStack::ThreadLocal::Free() {
   if (memory_size_ > 0) {
     DeleteArray(memory_);
     Clear();
   }
 }
 
 
 Address RegExpStack::EnsureCapacity(size_t size) {
   if (size > kMaximumStackSize) return NULL;
   if (size < kMinimumStackSize) size = kMinimumStackSize;
   if (thread_local_.memory_size_ < size) {
     Address new_memory = NewArray<byte>(static_cast<int>(size));
     if (thread_local_.memory_size_ > 0) {
       // Copy original memory into top of new memory.
-      OS::MemCopy(
-          reinterpret_cast<void*>(
-              new_memory + size - thread_local_.memory_size_),
-          reinterpret_cast<void*>(thread_local_.memory_),
-          thread_local_.memory_size_);
+      MemCopy(reinterpret_cast<void*>(new_memory + size -
+                                      thread_local_.memory_size_),
+              reinterpret_cast<void*>(thread_local_.memory_),
+              thread_local_.memory_size_);
       DeleteArray(thread_local_.memory_);
     }
     thread_local_.memory_ = new_memory;
     thread_local_.memory_size_ = size;
     thread_local_.limit_ = new_memory + kStackLimitSlack * kPointerSize;
   }
   return thread_local_.memory_ + thread_local_.memory_size_;
 }
 
 
 }}  // namespace v8::internal