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Use thread_local compiler specifics

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Much faster then pthread_getspecific() but still a
speed regression against the original code.

Following are the nps on a bench:

Position
454165
454838
455433

tls
441046
442767
442767

ms (Win)
450521
447510
451105

ms (pthread)
422115
422115
424276

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-04-06 17:01:41 +01:00
parent bed4075580
commit b1f57e92ce
7 changed files with 17 additions and 24 deletions
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4
src/search.cpp
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@@ -332,7 +332,7 @@ finalize:
// but if we are pondering or in infinite search, we shouldn't print the best
// move before we are told to do so.
if (!Signals.stop && (Limits.ponder || Limits.infinite))
Threads.this_thread()->wait_for_stop_or_ponderhit();
this_thread->wait_for_stop_or_ponderhit();
// Best move could be MOVE_NONE when searching on a stalemate position
cout << "bestmove " << move_to_uci(RootMoves[0].pv[0], Chess960)
@@ -543,7 +543,7 @@ namespace {
bool isPvMove, inCheck, singularExtensionNode, givesCheck;
bool captureOrPromotion, dangerous, doFullDepthSearch;
int moveCount = 0, playedMoveCount = 0;
Thread* thisThread = Threads.this_thread();
Thread* thisThread = this_thread;
SplitPoint* sp = NULL;
refinedValue = bestValue = value = -VALUE_INFINITE;