Serializer: micro-optimizations for the deserializer.

src/snapshot-source-sink.cc

 // Copyright 2014 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 "src/snapshot-source-sink.h"
 
 #include "src/base/logging.h"
 #include "src/handles-inl.h"
 #include "src/serialize.h"  // for SerializerDeserializer::nop() in AtEOF()
 
 
 namespace v8 {
 namespace internal {
 
-int32_t SnapshotByteSource::GetUnalignedInt() {
-  DCHECK(position_ < length_);  // Require at least one byte left.
-  int32_t answer = data_[position_];
-  answer |= data_[position_ + 1] << 8;
-  answer |= data_[position_ + 2] << 16;
-  answer |= data_[position_ + 3] << 24;
-  return answer;
-}
-
-
 void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) {
   MemCopy(to, data_ + position_, number_of_bytes);
   position_ += number_of_bytes;
 }
 
 
 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) {
   DCHECK(integer < 1 << 30);
   integer <<= 2;
   int bytes = 1;
@@ skipping 32 matching lines @@
     Advance(size);
     return true;
   } else {
     Advance(length_ - position_);  // proceed until end.
     return false;
   }
 }
 
 }  // namespace v8::internal
 }  // namespace v8