Example #1
0
/// Creates a hash-code for the function which is the same for any two
/// functions that will compare equal, without looking at the instructions
/// inside the function.
static unsigned profileFunction(const Function *F) {
  FunctionType *FTy = F->getFunctionType();

  FoldingSetNodeID ID;
  ID.AddInteger(F->size());
  ID.AddInteger(F->getCallingConv());
  ID.AddBoolean(F->hasGC());
  ID.AddBoolean(FTy->isVarArg());
  ID.AddInteger(getTypeIDForHash(FTy->getReturnType()));
  for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
    ID.AddInteger(getTypeIDForHash(FTy->getParamType(i)));
  return ID.ComputeHash();
}
Example #2
0
MDNode *MDNode::getMDNode(LLVMContext &Context, Value *const *Vals,
                          unsigned NumVals, FunctionLocalness FL,
                          bool Insert) {
  LLVMContextImpl *pImpl = Context.pImpl;
  bool isFunctionLocal = false;
  switch (FL) {
  case FL_Unknown:
    for (unsigned i = 0; i != NumVals; ++i) {
      Value *V = Vals[i];
      if (!V) continue;
      if (isFunctionLocalValue(V)) {
        isFunctionLocal = true;
        break;
      }
    }
    break;
  case FL_No:
    isFunctionLocal = false;
    break;
  case FL_Yes:
    isFunctionLocal = true;
    break;
  }

  FoldingSetNodeID ID;
  for (unsigned i = 0; i != NumVals; ++i)
    ID.AddPointer(Vals[i]);
  ID.AddBoolean(isFunctionLocal);

  void *InsertPoint;
  MDNode *N = NULL;
  
  if ((N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint)))
    return N;
    
  if (!Insert)
    return NULL;
    
  // Coallocate space for the node and Operands together, then placement new.
  void *Ptr = malloc(sizeof(MDNode)+NumVals*sizeof(MDNodeOperand));
  N = new (Ptr) MDNode(Context, Vals, NumVals, isFunctionLocal);

  // InsertPoint will have been set by the FindNodeOrInsertPos call.
  pImpl->MDNodeSet.InsertNode(N, InsertPoint);

  return N;
}
Example #3
0
void MDNode::Profile(FoldingSetNodeID &ID) const {
  for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
    ID.AddPointer(getOperand(i));
  ID.AddBoolean(isFunctionLocal());
}
Example #4
0
void ConstantBool::Profile(FoldingSetNodeID &ID, const Type *Ty,
                           const bool &Val) {
  ID.Add(Ty);
  ID.AddBoolean(Val);
}