HCha/Stockfish
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Simplify lookup_count and clean up pieces().

Browse Source 
https://github.com/official-stockfish/Stockfish/pull/4656

No functional change
This commit is contained in:
mstembera
2023-07-02 19:48:18 -07:00
committed by Joost VandeVondele
parent 8634717c64
commit 80564bcfcd
2 changed files with 4 additions and 12 deletions
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12
src/nnue/layers/affine_transform_sparse_input.h
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@@ -24,6 +24,7 @@
#include <iostream>
#include <algorithm>
#include <array>
#include <bitset>
#include <type_traits>
#include "../nnue_common.h"
#include "affine_transform.h"
@@ -77,16 +78,7 @@ namespace Stockfish::Eval::NNUE::Layers {
alignas(CacheLineSize) static inline const std::array<unsigned, 256> lookup_count = [](){
std::array<unsigned, 256> v;
for (int i = 0; i < 256; ++i)
{
int j = i;
int k = 0;
while(j)
{
j &= j - 1;
++k;
}
v[i] = k;
}
v[i] = unsigned(std::bitset<8>(i).count());
return v;
}();