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Remove some obsolete asserts on TT values

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Now that insert_pv_in_tt() stores VALUE_NONE in
TT's position evaluation those 2 asserts are
obselete.

No functional change.
This commit is contained in:
Marco Costalba 2012-12-31 16:28:40 +01:00
parent 896420b166
commit 193741218c
1 changed files with 6 additions and 15 deletions
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21
src/search.cpp
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@ -584,15 +584,9 @@ namespace {
else if (tte)
{
// Following asserts are valid only in single thread condition because
// TT access is always racy and its contents cannot be trusted.
assert(tte->static_value() != VALUE_NONE || Threads.size() > 1);
assert(ttValue != VALUE_NONE || tte->type() == BOUND_NONE || Threads.size() > 1);
ss->staticEval = eval = tte->static_value();
ss->evalMargin = tte->static_value_margin();
if (eval == VALUE_NONE || ss->evalMargin == VALUE_NONE) // Due to a race
// Never assume anything on values stored in TT
if ( (ss->staticEval = eval = tte->static_value()) == VALUE_NONE
||(ss->evalMargin = tte->static_value_margin()) == VALUE_NONE)
eval = ss->staticEval = evaluate(pos, ss->evalMargin);
// Can ttValue be used as a better position evaluation?
@ -1175,12 +1169,9 @@ split_point_start: // At split points actual search starts from here
}
else if (tte)
{
assert(tte->static_value() != VALUE_NONE || Threads.size() > 1);
ss->staticEval = bestValue = tte->static_value();
ss->evalMargin = tte->static_value_margin();
if (ss->staticEval == VALUE_NONE || ss->evalMargin == VALUE_NONE) // Due to a race
// Never assume anything on values stored in TT
if ( (ss->staticEval = bestValue = tte->static_value()) == VALUE_NONE
||(ss->evalMargin = tte->static_value_margin()) == VALUE_NONE)
ss->staticEval = bestValue = evaluate(pos, ss->evalMargin);
}
else