Function allInputTypesEquivalent

bolt/expression/ExprCompiler.cpp:116–124

Utility method to check eligibility for flattening.

// Utility method to check eligibility for flattening.
bool allInputTypesEquivalent(const TypedExprPtr& expr) {
  const auto& inputs = expr->inputs();
  for (int i = 1; i < inputs.size(); i++) {
    if (!inputs[0]->type()->equivalent(*inputs[i]->type())) {
      return false;
    }
  }
  return true;
}

std::optional<std::string> shouldFlatten(
    const TypedExprPtr& expr,