message: Prevent uninitialized vars
diff: @@ -170,15 +170,15 @@ struct Refinement : Taggable {
  offset(offset),
  bank_dim(bank_dim) {}
  - RefDir dir;
  + RefDir dir = RefDir::None;
  std::string from;
  std::string into;
  std::vector<Affine> access;
  TensorShape interior_shape;
  std::string agg_op;
  Location location;
  - bool is_const;
  - std::size_t offset; // Offset within the location's arena.
  + bool is_const = false;
  + std::size_t offset = 0; // Offset within the location's arena.
  boost::optional<BankDimension> bank_dim; // Which dimension should we bank on
  Affine FlatAccess() const;
  