Transforms/Utils/SimplifyCFG.cpp

989       Value *BB1V = PN->getIncomingValueForBlock(BB1);
991       if (BB1V != BB2V && (BB1V==I1 || BB2V==I2)) {
1071       Value *BB1V = PN->getIncomingValueForBlock(BB1);
1073       if (BB1V == BB2V)
1076       if (isa<ConstantExpr>(BB1V) && !isSafeToSpeculativelyExecute(BB1V))
1102       Value *BB1V = PN->getIncomingValueForBlock(BB1);
1104       if (BB1V == BB2V) continue;
1108       SelectInst *&SI = InsertedSelects[std::make_pair(BB1V, BB2V)];
1111           (Builder.CreateSelect(BI->getCondition(), BB1V, BB2V,
1112                                 BB1V->getName()+"."+BB2V->getName()));
1158       Value *BB1V = PN->getIncomingValueForBlock(BB1);
1160       MapValueFromBB1ToBB2[BB1V] = std::make_pair(BB2V, PN);