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add string constant cache to theory_str and associated param

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This commit is contained in:
Murphy Berzish 2016-12-18 18:47:38 -05:00
parent e5d3e425f1
commit 94762d276d
4 changed files with 32 additions and 19 deletions
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40
src/smt/theory_str.cpp
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@ -70,25 +70,29 @@ theory_str::~theory_str() {
}
expr * theory_str::mk_string(std::string str) {
++totalCacheAccessCount;
expr * val;
if (stringConstantCache.find(str, val)) {
// cache hit
++cacheHitCount;
TRACE("t_str_cache", tout << "cache hit: \"" << str << "\" ("
<< cacheHitCount << " hits, " << cacheMissCount << " misses out of "
<< totalCacheAccessCount << " accesses)" << std::endl;);
return val;
if (m_params.m_StringConstantCache) {
++totalCacheAccessCount;
expr * val;
if (stringConstantCache.find(str, val)) {
// cache hit
++cacheHitCount;
TRACE("t_str_cache", tout << "cache hit: \"" << str << "\" ("
<< cacheHitCount << " hits, " << cacheMissCount << " misses out of "
<< totalCacheAccessCount << " accesses)" << std::endl;);
return val;
} else {
// cache miss
++cacheMissCount;
TRACE("t_str_cache", tout << "cache miss: \"" << str << "\" ("
<< cacheHitCount << " hits, " << cacheMissCount << " misses out of "
<< totalCacheAccessCount << " accesses)" << std::endl;);
val = m_strutil.mk_string(str);
m_trail.push_back(val);
stringConstantCache.insert(str, val);
return val;
}
} else {
// cache miss
++cacheMissCount;
TRACE("t_str_cache", tout << "cache miss: \"" << str << "\" ("
<< cacheHitCount << " hits, " << cacheMissCount << " misses out of "
<< totalCacheAccessCount << " accesses)" << std::endl;);
val = m_strutil.mk_string(str);
m_trail.push_back(val);
stringConstantCache.insert(str, val);
return val;
return m_strutil.mk_string(str);
}
}