From: Marco Costalba <mcostalba@gmail.com>
Date: Thu, 2 May 2013 07:35:52 +0000 (+0200)
Subject: Another take at TT alignment
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=d44ac0a4850f389ee2fdb8812104150c323d9ec2;ds=sidebyside

Another take at TT alignment

This time revert to original version but using
uintptr_t instead of size_t

Suggested by Lucas.

No functional change.
---

diff --git a/src/tt.cpp b/src/tt.cpp
index 271b98b7..c6b294a0 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -50,8 +50,7 @@ void TranspositionTable::set_size(size_t mbSize) {
       exit(EXIT_FAILURE);
   }
 
-  // Align table start address to a cache line
-  for (char* c = (char*)mem; unsigned(table = (TTEntry*)(c)) % CACHE_LINE_SIZE; c++) {}
+  table = (TTEntry*)((uintptr_t(mem) + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1));
   clear(); // Operator new is not guaranteed to initialize memory to zero
 }