Remove unused MaxLookup parameter

Author: nikic

llvm/include/llvm/Analysis/ValueTracking.h

@@ -738,8 +738,7 @@ inline Value *getUnderlyingObject(Value *V, unsigned MaxLookup = 6) {
 
 /// Like getUnderlyingObject(), but will try harder to find a single underlying
 /// object. In particular, this function also looks through selects and phis.
-const Value *getUnderlyingObjectAggressive(const Value *V,
-                                           unsigned MaxLookup = 6);
+const Value *getUnderlyingObjectAggressive(const Value *V);
 
 /// This method is similar to getUnderlyingObject except that it can
 /// look through phi and select instructions and return multiple objects.

llvm/lib/Analysis/ValueTracking.cpp

@@ -6609,8 +6609,7 @@ void llvm::getUnderlyingObjects(const Value *V,
   } while (!Worklist.empty());
 }
 
-const Value *llvm::getUnderlyingObjectAggressive(const Value *V,
-                                                 unsigned MaxLookup) {
+const Value *llvm::getUnderlyingObjectAggressive(const Value *V) {
   const unsigned MaxVisited = 8;
 
   SmallPtrSet<const Value *, 8> Visited;
@@ -6619,7 +6618,7 @@ const Value *llvm::getUnderlyingObjectAggressive(const Value *V,
   const Value *Object = nullptr, *FirstObject = nullptr;
   do {
     const Value *P = Worklist.pop_back_val();
-    P = getUnderlyingObject(P, MaxLookup);
+    P = getUnderlyingObject(P);
 
     if (!FirstObject)
       FirstObject = P;