"Global Value Numbering/Partial Redundancy Elimination");
+STATISTIC(NumInsertedVals, "Number of values inserted");
+STATISTIC(NumInsertedPhis, "Number of PHI nodes inserted");
+STATISTIC(NumEliminated, "Number of redundant instructions eliminated");
+
bool GVNPRE::add(Value* V, uint32_t number) {
std::pair<ValueTable::iterator, bool> ret = VN.insert(std::make_pair(V, number));
if (av != avail.end())
avail.erase(av);
avail.insert(std::make_pair(*PI, newVal));
+
+ ++NumInsertedVals;
}
}
DOUT << "\n\n";
new_set.insert(p);
+
+ ++NumInsertedPhis;
}
}
}
if (Instr->getParent() != 0 && Instr != BI) {
replace.push_back(std::make_pair(BI, leader));
erase.push_back(BI);
+ ++NumEliminated;
}
}
}