From: Marco Costalba <mcostalba@gmail.com>
Date: Fri, 9 Oct 2009 10:29:11 +0000 (+0100)
Subject: Small micro-optimization in get_pawn_info()
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=564ed5b38cb2b99e8770ed1c0ceee7c3e769eb0a;ds=sidebyside

Small micro-optimization in get_pawn_info()

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 8f5e1890..aa41c2cd 100644
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -303,12 +303,11 @@ PawnInfo* PawnInfoTable::get_pawn_info(const Position& pos) {
         // it cannot be backward. If can capture an enemy pawn or if
         // there are friendly pawns behind on neighboring files it cannot
         // be backward either.
+
         bool backward;
-        if (   passed
-            || isolated
-            || chain
-            || (pos.attacks_from<PAWN>(s, us) & theirPawns)
-            || (ourPawns & behind_bb(us, r) & neighboring_files_bb(f)))
+        if (   (passed | isolated | chain)
+            || (ourPawns & behind_bb(us, r) & neighboring_files_bb(f))
+            || (pos.attacks_from<PAWN>(s, us) & theirPawns))
             backward = false;
         else
         {