// LoopProcessWorklist - List of loops we need to process.
std::vector<Loop*> LoopProcessWorklist;
+ std::set<Value *> UnswitchedVals;
+
public:
virtual bool runOnFunction(Function &F);
bool visitLoop(Loop *L);
// Find a value to unswitch on:
// FIXME: this should chose the most expensive case!
Constant *UnswitchVal = SI->getCaseValue(1);
+ // Do not process same value again and again.
+ if (UnswitchedVals.count(UnswitchVal) != 0)
+ continue;
+ UnswitchedVals.insert(UnswitchVal);
+
if (UnswitchIfProfitable(LoopCond, UnswitchVal, L)) {
++NumSwitches;
return true;