Transforms/Utils/LowerSwitch.cpp

65     BasicBlock* newLeafBlock(CaseRange& Leaf, Value* Val,
175 BasicBlock* LowerSwitch::newLeafBlock(CaseRange& Leaf, Value* Val,
186   if (Leaf.Low == Leaf.High) {
189                         Leaf.Low, "SwitchLeaf");
192     if (cast<ConstantInt>(Leaf.Low)->isMinValue(true /*isSigned*/)) {
194       Comp = new ICmpInst(*NewLeaf, ICmpInst::ICMP_SLE, Val, Leaf.High,
196     } else if (cast<ConstantInt>(Leaf.Low)->isZero()) {
198       Comp = new ICmpInst(*NewLeaf, ICmpInst::ICMP_ULE, Val, Leaf.High,
202       Constant* NegLo = ConstantExpr::getNeg(Leaf.Low);
206       Constant *UpperBound = ConstantExpr::getAdd(NegLo, Leaf.High);
213   BasicBlock* Succ = Leaf.BB;
221     uint64_t Range = cast<ConstantInt>(Leaf.High)->getSExtValue() -
222                      cast<ConstantInt>(Leaf.Low)->getSExtValue();