Update copyright years

[stockfish] / src / nnue / nnue_accumulator.h

diff --git a/src/nnue/nnue_accumulator.h b/src/nnue/nnue_accumulator.h
index 2a354a3c2844a29a7bcec9d9a5ce2a12822eb203..6b4390f9216aec1005a3569ff0c96abae1474c86 100644 (file)
--- a/src/nnue/nnue_accumulator.h
+++ b/src/nnue/nnue_accumulator.h
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2020 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -25,13 +25,14 @@
 
 namespace Eval::NNUE {
 
+  // The accumulator of a StateInfo without parent is set to the INIT state
+  enum AccumulatorState { EMPTY, COMPUTED, INIT };
+
   // Class that holds the result of affine transformation of input features
-  struct alignas(32) Accumulator {
+  struct alignas(kCacheLineSize) Accumulator {
     std::int16_t
         accumulation[2][kRefreshTriggers.size()][kTransformedFeatureDimensions];
-    Value score;
-    bool computed_accumulation;
-    bool computed_score;
+    AccumulatorState state[2];
   };
 
 }  // namespace Eval::NNUE