From 11ee391206156ab7fe5ef06a40eac8b73bfd6e8a Mon Sep 17 00:00:00 2001
From: Calcitem <calcitem@outlook.com>
Date: Sun, 20 Dec 2020 09:44:34 +0800
Subject: [PATCH] bb: Do not use popcount

---
 src/position.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/position.cpp b/src/position.cpp
index 733f2556..0162db57 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1597,7 +1597,7 @@ int Position::in_how_many_mills(Square s, Color c, Square squareSelected)
             board[millTable[s][l][0]] &
             board[millTable[s][l][1]];
 #else
-        bool b = popcount(byColorBB[c] & millTableBB[s][l]) == (3 - 1);
+        bool b = (millTableBB[s][l] && ((byColorBB[c] & millTableBB[s][l]) == millTableBB[s][l]));
 #endif
 
         if (b) {
@@ -1660,7 +1660,7 @@ int Position::add_mills(Square s)
         }
 #else
         // no mill
-        if (popcount(byColorBB[m] & millTableBB[s][i]) < (3 - 1)) {
+        if (millTableBB[s][i] == 0 || ((byColorBB[m] & millTableBB[s][i]) != millTableBB[s][i])) {
             continue;
         }
 #endif