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falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/api/compilation_unit.h

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+#pragma once
+#include <ATen/core/function.h>
+#include <c10/util/Exception.h>
+#include <torch/csrc/jit/api/function_impl.h>
+#include <torch/csrc/jit/frontend/name_mangler.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/runtime/graph_executor.h>
+
+#include <torch/csrc/Export.h>
+
+#include <ATen/core/function_schema.h>
+#include <ATen/core/qualified_name.h>
+#include <c10/util/ArrayRef.h>
+#include <c10/util/Optional.h>
+
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <ostream>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+namespace torch::jit {
+
+struct Def;
+struct Property;
+struct ClassDef;
+struct SugaredValue;
+struct Resolver;
+
+using ResolverPtr = std::shared_ptr<Resolver>;
+struct Self {
+  virtual ~Self() = default;
+  virtual std::shared_ptr<SugaredValue> makeSugared(Value* v) const = 0;
+  virtual ClassTypePtr getClassType() const = 0;
+};
+
+// A CompilationUnit is a list of named Functions
+// with helper methods to iterate the list or invoke the function.
+// Classes have a CompilationUnit holding the class methods,
+// and Modules have a CompilationUnit holding the Functions that
+// are used to implement their Methods
+
+struct TORCH_API CompilationUnit {
+  enum class FunctionType { Method, Hook, PreHook };
+  // constructor that takes a set of functions to compile using the native
+  // resolver
+  explicit CompilationUnit(const std::string& source);
+  CompilationUnit() = default;
+
+  CompilationUnit& operator=(CompilationUnit&&) = default;
+  CompilationUnit(CompilationUnit&&) = default;
+  CompilationUnit& operator=(const CompilationUnit&) = delete;
+  CompilationUnit(const CompilationUnit&) = delete;
+
+  Function* find_function(const c10::QualifiedName& name) const {
+    auto it = dict_.find(name);
+    if (it == dict_.end()) {
+      return nullptr;
+    }
+    return functions_[it->second].get();
+  }
+
+  Function& get_function(const c10::QualifiedName& name) const {
+    if (auto r = find_function(name)) {
+      return *r;
+    }
+    TORCH_CHECK(false, "attempted to get undefined function ", name.name());
+  }
+
+  void set_optimized(bool o) {
+    TORCH_WARN(
+        "CompilationUnit::set_optimized() is deprecated and has no effect. "
+        "Please use setGraphExecutorOptimize()");
+  }
+
+  bool is_optimized() const {
+    TORCH_WARN(
+        "CompilationUnit::is_optimized() is deprecated and always returns true. "
+        "Please use getGraphExecutorOptimize()");
+    return true;
+  }
+
+  // for historic reasons, these are defined in ir_emitter.cpp
+  // Returns the list of Functions just defined.
+  std::vector<Function*> define(
+      const c10::optional<c10::QualifiedName>& prefix,
+      const std::vector<Property>& properties,
+      const std::vector<ResolverPtr>& propResolvers,
+      const std::vector<Def>& definitions,
+      const std::vector<ResolverPtr>&
+          defResolvers, /* determines how we handle free
+                     variables in each definition*/
+      // if non-null, the first argument to each def, is bound to this value
+      const Self* self,
+      // see [name mangling]
+      bool shouldMangle = false,
+      c10::optional<size_t> operator_set_version = c10::nullopt);
+
+  void define_hooks(
+      const c10::optional<c10::QualifiedName>& prefix,
+      const std::vector<Def>& hookDefs,
+      const std::vector<ResolverPtr>& hookResolvers,
+      const std::vector<Def>& preHookDefs,
+      const std::vector<ResolverPtr>& preHookResolvers,
+      const Self* self,
+      bool shouldMangle = false);
+
+  // same as above but parse the definitions from source
+  // Returns the list of Functions just defined.
+  std::vector<Function*> define(
+      // prefix namespace to put all the defined functions into
+      const c10::optional<c10::QualifiedName>& prefix,
+      const std::string& source,
+      const ResolverPtr& resolver,
+      const Self* self);
+
+  void define_interface(
+      const c10::QualifiedName& qualifiedName,
+      const ClassDef& classDef,
+      ResolverPtr rcb,
+      bool is_module = false);
+
+  Function* create_function(
+      c10::QualifiedName name,
+      std::shared_ptr<Graph> graph,
+      bool shouldMangle = false) {
+    if (shouldMangle) {
+      name = mangle(name);
+    }
+    auto fn = std::make_unique<GraphFunction>(
+        std::move(name), std::move(graph), nullptr);
+    auto ret = fn.get();
+    register_function(std::move(fn));
+    return ret;
+  }
+
+  std::vector<Function*> get_functions() const {
+    return fmap(functions_, [](const std::unique_ptr<Function>& fn) {
+      return fn.get();
+    });
+  }
+
+  /// Run a method from this compilation.
+  ///
+  /// For example:
+  /// @code
+  ///   IValue output = module->run("relu_script", a, b);
+  /// @endcode
+  ///
+  /// To get a compile a module from a source string, see torch::jit::compile
+  ///
+  /// @param method_name The name of the method to run
+  /// @param args Arguments to be passed to the method
+  /// @return An IValue containing the return value (or values if it is a tuple)
+  /// from the method
+  template <typename... Types>
+  IValue run_method(const c10::QualifiedName& method_name, Types&&... args) {
+    return get_function(method_name)({IValue(std::forward<Types>(args))...});
+  }
+
+  void drop_all_functions() {
+    dict_.clear();
+    functions_.clear();
+  }
+
+  /**
+   * Register a class as being owned by this compilation unit.
+   */
+  void register_type(c10::NamedTypePtr namedType) {
+    // TODO: class types cannot be redefined because we have no way right now
+    // of invalidating their methods. NamedTuples are fine though, since they
+    // don't have methods.
+    TORCH_CHECK(
+        0 == classDict_.count(*namedType->name()),
+        "class '",
+        namedType->name()->qualifiedName(),
+        "' already defined.");
+    classes_.push_back(std::move(namedType));
+    classDict_[*classes_.back()->name()] = classes_.size() - 1;
+  };
+
+  c10::ClassTypePtr get_class(const c10::QualifiedName& name) const {
+    auto type = get_type(name);
+    if (!type) {
+      return nullptr;
+    }
+    return type->cast<c10::ClassType>();
+  }
+
+  c10::InterfaceTypePtr get_interface(const c10::QualifiedName& name) const {
+    auto type = get_type(name);
+    if (!type) {
+      return nullptr;
+    }
+    return type->cast<c10::InterfaceType>();
+  }
+
+  c10::TupleTypePtr get_named_tuple(const c10::QualifiedName& name) const {
+    for (const auto& cls : classes_) {
+      if (cls->name()->qualifiedName() == name.qualifiedName()) {
+        return cls->expect<TupleType>();
+      }
+    }
+    return nullptr;
+  }
+
+  c10::NamedTypePtr get_type(const c10::QualifiedName& name) const {
+    auto it = classDict_.find(name);
+    if (it == classDict_.end()) {
+      return nullptr;
+    }
+    return classes_[it->second];
+  }
+
+  // For testing: clear all Python-defined classes to ensure that unit tests
+  // have isolation.
+  void _clear_python_cu() {
+    // Delete all the associated class methods
+    for (const auto& type : classes_) {
+      if (auto cls = type->cast<ClassType>()) {
+        for (auto method : cls->methods()) {
+          // Tombstone the method in the compilation unit.
+          // Don't erase because the dict_
+          auto it = dict_.find(method->qualname());
+          if (it != dict_.end()) {
+            functions_[it->second] = nullptr;
+            // Erase in our big lookup table
+            dict_.erase(it);
+          }
+        }
+        // Classes can have multiple pointers to the same hook,
+        // need to make sure to not delete it twice
+        std::unordered_set<Function*> hooks_to_delete;
+        for (const auto& hook : cls->getForwardHooks()) {
+          hooks_to_delete.insert(hook);
+        }
+        for (const auto& pre_hook : cls->getForwardPreHooks()) {
+          hooks_to_delete.insert(pre_hook);
+        }
+        for (const auto& hook : hooks_to_delete) {
+          // Tombstone the hook in the compilation unit.
+          auto it = dict_.find(hook->qualname());
+          if (it != dict_.end()) {
+            functions_[it->second] = nullptr;
+            // Erase in our big lookup table
+            dict_.erase(it);
+          }
+        }
+      }
+    }
+    classes_.clear();
+    classDict_.clear();
+  }
+
+  // [Internal Only] Remove method.
+  // Note Used for freezing.
+  void unsafeRemoveMethod(const c10::QualifiedName& method_name) {
+    auto it = dict_.find(method_name);
+    TORCH_CHECK(
+        it != dict_.end(),
+        "method '",
+        method_name.qualifiedName(),
+        "' does not exist.");
+    functions_[it->second] = nullptr;
+    dict_.erase(it);
+  }
+
+  // [name mangling] All code objects must have a unique qualified name in a
+  // CompilationUnit. In Python, sometimes functions won't have unique qualified
+  // name (for example, nested functions). So we mangle Python functions to
+  // ensure that they are uniquely named.
+  //
+  // We also use mangling to distinguish different Module instances. Since each
+  // Module is a singleton class instance, different instances of the same
+  // Python Module will have different types but the same qualified name.
+  c10::QualifiedName mangle(const c10::QualifiedName& name) const {
+    auto mangled = name;
+    while (get_type(mangled) || find_function(mangled)) {
+      mangled = mangler_.mangle(mangled);
+    }
+    return mangled;
+  }
+
+ private:
+  std::unique_ptr<Function> define(
+      const c10::optional<c10::QualifiedName>& prefix,
+      const Def& def,
+      const ResolverPtr& resolver,
+      const Self* self,
+      const std::unordered_map<std::string, Function*>& function_table,
+      bool shouldMangle = false,
+      FunctionType type = FunctionType::Method,
+      c10::optional<size_t> version = c10::nullopt) const;
+
+  // Define a property on \p self.
+  struct PropertyPair;
+  PropertyPair define_property(
+      const c10::optional<c10::QualifiedName>& prefix,
+      const Property& prop,
+      const ResolverPtr& resolver,
+      const Self* self,
+      const std::unordered_map<std::string, Function*>& function_table,
+      bool shouldMangle = false) const;
+
+  Function& register_function(std::unique_ptr<Function> fn) {
+    TORCH_CHECK(
+        0 == dict_.count(fn->qualname().qualifiedName()),
+        "method '",
+        fn->qualname().qualifiedName(),
+        "' already defined.");
+    functions_.emplace_back(std::move(fn));
+    dict_[functions_.back()->qualname()] = functions_.size() - 1;
+    return *functions_.back();
+  }
+  std::vector<std::unique_ptr<Function>> functions_;
+  // for fast lookup
+  std::unordered_map<c10::QualifiedName, size_t> dict_;
+  std::unordered_map<c10::QualifiedName, size_t> classDict_;
+
+  // [class ownership] Right now there are two relationships between classes
+  // and compilation units:
+  // 1. Classes have compilation units internally that hold their methods.
+  // 2. On load, the TypePtrs of any imported classes are owned by the main
+  // module's compilation unit.
+  std::vector<c10::NamedTypePtr> classes_;
+
+  mutable NameMangler mangler_;
+};
+
+// An owning pointer to a Function. Just a pair of a raw Function ptr and it's
+// owning CU. We need this because pybind requires a ref-counted way to refer to
+// Functions.
+struct StrongFunctionPtr {
+  StrongFunctionPtr(std::shared_ptr<CompilationUnit> cu, Function* function)
+      : cu_(std::move(cu)), function_(function) {
+    TORCH_INTERNAL_ASSERT(cu_);
+    TORCH_INTERNAL_ASSERT(function_);
+  }
+  std::shared_ptr<CompilationUnit> cu_;
+  Function* function_;
+};
+
+namespace script {
+// We once had a `script::` namespace that was deleted. This is for backcompat
+// of the public API; new code should not use this type alias.
+using CompilationUnit = ::torch::jit::CompilationUnit;
+} // namespace script
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/api/function_impl.h

@@ -0,0 +1,181 @@
+#pragma once
+
+#include <ATen/core/function.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/runtime/graph_executor.h>
+
+namespace torch::jit {
+
+struct TORCH_API GraphFunction : public Function {
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+  GraphFunction(
+      c10::QualifiedName name,
+      std::shared_ptr<Graph> graph,
+      std::function<void(GraphFunction&)> function_creator,
+      c10::optional<ExecutorExecutionMode> executor_execution_mode =
+          c10::nullopt)
+      : name_(std::move(name)),
+        graph_(std::move(graph)),
+        executor_execution_mode_(executor_execution_mode),
+        function_creator_(std::move(function_creator)) {}
+
+  bool isGraphFunction() const override {
+    return true;
+  }
+
+  void run(Stack& stack) override;
+
+  std::function<void(GraphFunction&)> function_creator() const {
+    return function_creator_;
+  }
+
+  c10::intrusive_ptr<c10::ivalue::Future> runAsync(
+      Stack& stack,
+      TaskLauncher taskLauncher = at::launch) override;
+
+  std::shared_ptr<Graph> graph() const {
+    return graph_;
+  }
+
+  std::shared_ptr<Graph> optimized_graph() const;
+
+  const c10::QualifiedName& qualname() const override {
+    return name_;
+  }
+
+  // private/unstable api. sets the initial execution mode
+  // will not affect executor if there is an existing executor
+  // created for this function
+  void _set_initial_executor_execution_mode(ExecutorExecutionMode mode) {
+    executor_execution_mode_ = mode;
+  }
+  // private/unstable api. sets flag of whether or not to ignore amp.
+  // will not affect executor if there is an existing executor
+  // created for this function
+  void _set_ignore_amp(bool ignore_amp) {
+    force_no_amp_ = ignore_amp;
+  }
+
+  // if this isn't yet defined, run its method_creator function
+  void ensure_defined() override;
+
+  size_t num_inputs() const override {
+    return graph()->inputs().size();
+  }
+
+  Function& setSchema(FunctionSchema schema) override {
+    schema_ = std::make_unique<FunctionSchema>(std::move(schema));
+    return *this;
+  }
+
+  const FunctionSchema& getSchema() const override;
+
+  GraphExecutorState getDebugState() {
+    return get_executor().getDebugState();
+  }
+
+  bool is_optimized() const {
+    TORCH_WARN(
+        "GraphFunction::is_optimized() is deprecated and always returns true. "
+        "Please use getGraphExecutorOptimize()");
+    return true;
+  }
+
+  void check_single_output() {
+    TORCH_CHECK(
+        graph()->outputs().size() == 1,
+        "Method (but not graphs in general) require a single output. Use None/Tuple for 0 or 2+ outputs");
+  }
+
+  GraphExecutor& get_executor() {
+    ensure_defined();
+    std::lock_guard<std::recursive_mutex> lock(compile_mutex);
+    auto& executor = executors_[currentSpecialization()];
+    if (executor) {
+      return *executor;
+    }
+    check_single_output();
+    const std::string& name = name_.name();
+    std::shared_ptr<Graph> opt_graph = optimized_graph();
+    if (!executor_execution_mode_) {
+      executor = GraphExecutor(opt_graph, name);
+    } else {
+      executor = GraphExecutor(opt_graph, name, *executor_execution_mode_);
+    }
+    return *executor;
+  }
+
+  using Function::call;
+  bool call(
+      Stack& stack,
+      c10::optional<size_t> bailOut,
+      c10::function_ref<void(const Code&)> f) override {
+    f(get_executor().getPlanFor(stack, bailOut).code);
+    return true;
+  }
+
+  void clear_optimized_graphs() {
+    optimized_graphs_.fill(nullptr);
+  }
+
+ private:
+  enum SpecializationKey {
+    AutocastOff,
+    CpuAutocastOn,
+    GpuAutocastOn,
+    CpuGpuAutocastOn,
+
+    // This provides the number of specializations
+    // (Must be last entry)
+    TotalCount
+  };
+
+  SpecializationKey currentSpecialization() const;
+
+ private:
+  c10::QualifiedName name_;
+  // The original, non-optimized graph
+  std::shared_ptr<Graph> graph_; // for debugging and for inlining
+
+  // allows users to specify Simple/Profiling Executor for function
+  // TODO: add more executors
+  mutable c10::optional<ExecutorExecutionMode> executor_execution_mode_;
+
+  // if invoked on a graph that has already traced through amp
+  // don't invoke amp pass
+  mutable bool force_no_amp_ = false;
+  // Optimized graph, computed lazily. Used for inlining.
+  mutable std::array<std::shared_ptr<Graph>, SpecializationKey::TotalCount>
+      optimized_graphs_;
+
+  // GraphFunctions are invokable from multiple threads, so this lock needs to
+  // be held when we're initializing graph executor for the first time or
+  // computing the optimized graph. We're using reentrant mutex so that we don't
+  // need to worry about causing a deadlock by calling one method from another
+  // (e.g. optimized_graph() from get_executor()).
+  mutable std::recursive_mutex compile_mutex;
+
+  // executor_[0] - autocast off
+  // executor_[1] - autocast cpu on
+  // executor_[2] - autocast gpu on
+  // executor_[3] - autocast cpu & gpu on
+  std::array<c10::optional<GraphExecutor>, SpecializationKey::TotalCount>
+      executors_;
+
+  // an optional function that actually creates the method when
+  // ensure_defined() is called. This is used by the compiler so
+  // that it can construct methods out of order
+  std::function<void(GraphFunction&)> function_creator_;
+
+  // if absent, then we generate a default schema based on the graph
+  // mutable because getSchema caches the default schema if one is requested
+  // before a call to setSchema
+  mutable std::unique_ptr<FunctionSchema> schema_;
+};
+
+// Short hands for dynamic_cast<GraphFunction*>.
+TORCH_API GraphFunction* tryToGraphFunction(Function&) noexcept;
+TORCH_API GraphFunction& toGraphFunction(Function&);
+TORCH_API const GraphFunction& toGraphFunction(const Function&);
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/api/method.h

@@ -0,0 +1,84 @@
+#pragma once
+
+#include <ATen/core/function.h>
+#include <ATen/core/ivalue.h>
+#include <ATen/core/stack.h>
+#include <torch/csrc/api/include/torch/imethod.h>
+#include <torch/csrc/jit/api/function_impl.h>
+
+namespace torch::jit {
+
+using ObjectPtr = c10::intrusive_ptr<c10::ivalue::Object>;
+
+// A method in a module, e.g. f in:
+//
+// class M(ScriptModule):
+//   @script_method
+//   def f(self, x):
+//     ...
+// Note: because Method/Module are exposed to python these
+// classes use python method naming conventions
+struct TORCH_API Method : public torch::IMethod {
+  Method(ObjectPtr owner, Function* function);
+
+  // the module that contains this method.
+  Module owner() const;
+  // the raw objectptr that owns this method, for when the method is owned by a
+  // torchbind object.
+  ObjectPtr raw_owner() const;
+  void run(Stack& stack);
+  void run(Stack&& stack) {
+    run(stack);
+  }
+
+  c10::IValue operator()(
+      std::vector<c10::IValue> stack,
+      const Kwargs& kwargs = Kwargs()) const override;
+
+  // Run method async. Invocation on this function would invokes a JIT
+  // interpreter that executes ops inline, one by one, on caller's thread. A
+  // model can utilize async op, i.e. `fork`, to launch an asynchronous task
+  // which will be launched on provided `taskLauncher`.
+  c10::intrusive_ptr<c10::ivalue::Future> run_async(
+      std::vector<c10::IValue> stack,
+      const Kwargs& kwargs = Kwargs(),
+      TaskLauncher taskLauncher = at::launch);
+
+  std::shared_ptr<Graph> graph() const {
+    return toGraphFunction(*function_).graph();
+  }
+
+  const std::string& name() const override {
+    return function_->name();
+  }
+
+  size_t num_inputs() const {
+    return function_->num_inputs();
+  }
+
+  GraphExecutor& get_executor() {
+    return toGraphFunction(*function_).get_executor();
+  }
+
+  Function& function() const {
+    return *function_;
+  }
+
+ private:
+  void setArgumentNames(std::vector<std::string>&) const override;
+
+  // Methods are uniqued onwed by a single module. This raw pointer allows
+  // looking up the module.
+  ObjectPtr owner_;
+
+  // Underlying unbound function
+  Function* function_;
+};
+
+namespace script {
+// We once had a `script::` namespace that was deleted. This is for backcompat
+// of the public API; new code should not use this type alias.
+using Method = ::torch::jit::Method;
+} // namespace script
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/api/module.h

@@ -0,0 +1,685 @@
+#pragma once
+#include <c10/util/Exception.h>
+#include <torch/csrc/autograd/variable.h>
+#include <torch/csrc/jit/api/object.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/ir/named_value.h>
+#include <torch/csrc/jit/runtime/argument_spec.h>
+#include <torch/csrc/jit/runtime/graph_executor.h>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/api/include/torch/ordered_dict.h>
+#include <torch/csrc/jit/api/compilation_unit.h>
+
+#include <ATen/core/function_schema.h>
+#include <ATen/core/qualified_name.h>
+#include <c10/util/ArrayRef.h>
+#include <c10/util/Optional.h>
+#include <c10/util/irange.h>
+
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <ostream>
+#include <string>
+#include <unordered_map>
+#include <unordered_set>
+#include <utility>
+#include <vector>
+
+// This file contains classes which assist in desugaring Python style
+// modules and their methods into flattened graphs which don't have any
+// function calls.
+
+namespace torch::jit {
+
+using ::c10::Argument;
+using ::c10::FunctionSchema;
+using ::c10::QualifiedName;
+// Map which stores filename to content.
+using ExtraFilesMap = std::unordered_map<std::string, std::string>;
+
+using ModulePtr = c10::intrusive_ptr<c10::ivalue::Object>;
+
+struct Module;
+
+template <typename T>
+struct slot_list_impl;
+
+template <typename T>
+struct Named {
+  std::string name;
+  T value;
+};
+
+using NameModule = Named<Module>;
+using NameValue = Named<IValue>;
+using NameTensor = Named<at::Tensor>;
+
+namespace detail {
+struct TORCH_API ModulePolicy;
+struct TORCH_API ParameterPolicy;
+struct TORCH_API AttributePolicy;
+struct TORCH_API BufferPolicy;
+template <typename P>
+struct NamedPolicy;
+} // namespace detail
+
+using module_list = slot_list_impl<detail::ModulePolicy>;
+using named_module_list =
+    slot_list_impl<detail::NamedPolicy<detail::ModulePolicy>>;
+
+using parameter_list = slot_list_impl<detail::ParameterPolicy>;
+using named_parameter_list =
+    slot_list_impl<detail::NamedPolicy<detail::ParameterPolicy>>;
+
+using attribute_list = slot_list_impl<detail::AttributePolicy>;
+using named_attribute_list =
+    slot_list_impl<detail::NamedPolicy<detail::AttributePolicy>>;
+
+using buffer_list = slot_list_impl<detail::BufferPolicy>;
+using named_buffer_list =
+    slot_list_impl<detail::NamedPolicy<detail::BufferPolicy>>;
+
+using ModuleLookup = std::function<Module(const std::vector<std::string>&)>;
+
+struct TORCH_API Module : public Object {
+  explicit Module(c10::QualifiedName class_name);
+  Module(std::shared_ptr<CompilationUnit> cu, const c10::ClassTypePtr& type);
+  Module() = default;
+  Module(const Module&) = default;
+  Module& operator=(const Module&) = default;
+  Module(Module&&) noexcept = default;
+  Module& operator=(Module&&) noexcept = default;
+  Module(
+      c10::QualifiedName,
+      std::shared_ptr<CompilationUnit> cu,
+      bool shouldMangle = false);
+  Module(ModulePtr module_value) : Object(std::move(module_value)) {}
+  ~Module() = default;
+
+  void set_optimized(bool o) {
+    TORCH_WARN(
+        "Module::set_optimized() is deprecated and has no effect. "
+        "Please use setGraphExecutorOptimize()");
+  }
+
+  bool is_optimized() const {
+    TORCH_WARN(
+        "Module::is_optimized() is deprecated and always returns true. "
+        "Please use getGraphExecutorOptimize()");
+    return true;
+  }
+
+  IValue forward(std::vector<IValue> inputs, const Kwargs& kwargs = Kwargs()) {
+    return get_method("forward")(std::move(inputs), kwargs);
+  }
+
+  // In script modules, buffers are Tensors attribute that are _not_ registered
+  // as parameters. This is different than in nn.Module where there is a special
+  // register_buffer method. With this simplification, we only need to track
+  // whether a slot is a parameter to be able to classify it.
+  void register_buffer(const std::string& name, at::Tensor v) {
+    bool is_param = false;
+    bool is_buffer = true;
+    std::lock_guard<std::mutex> lock(*register_mutex_);
+    type()->addOrCheckAttribute(name, TensorType::get(), is_param, is_buffer);
+    _ivalue()->setAttr(name, std::move(v));
+  }
+
+  void register_parameter(
+      const std::string& name,
+      at::Tensor v,
+      bool is_buffer) {
+    std::lock_guard<std::mutex> lock(*register_mutex_);
+    type()->addOrCheckAttribute(name, TensorType::get(), !is_buffer, is_buffer);
+    _ivalue()->setAttr(name, std::move(v));
+  }
+
+  void register_attribute(
+      const std::string& name,
+      const TypePtr& t,
+      IValue v,
+      bool is_param = false,
+      bool is_buffer = false) {
+    type()->addOrCheckAttribute(name, t, is_param, is_buffer);
+    _ivalue()->setAttr(name, std::move(v));
+  }
+
+  void register_module(const std::string& name, const Module& module) {
+    type()->addOrCheckAttribute(name, module.type());
+    _ivalue()->setAttr(name, module._ivalue());
+  }
+
+  void apply(const std::function<void(Module&)>& fn);
+
+  buffer_list buffers(bool recurse = true) const;
+  named_buffer_list named_buffers(bool recurse = true) const;
+
+  module_list children() const; // direct modules
+  named_module_list named_children() const;
+  module_list modules() const; // all modules, including this one, recursively
+  named_module_list named_modules() const;
+
+  // all tensors involved in gradient optimization
+  parameter_list parameters(bool recurse = true) const;
+  named_parameter_list named_parameters(bool recurse = true) const;
+
+  // all members of the object, similar to iterating over dir(obj) in python
+  attribute_list attributes(bool recurse = true) const;
+  named_attribute_list named_attributes(bool recurse = true) const;
+
+  void dump(
+      bool print_method_bodies,
+      bool print_attr_values,
+      bool print_param_values) const;
+
+  std::string dump_to_str(
+      bool print_method_bodies,
+      bool print_attr_values,
+      bool print_param_values) const;
+
+  /// Enables "training" mode.
+  void train(bool on = true);
+  /// Calls train(false) to enable "eval" mode.
+  /// Do not override this method, override `train()` instead.
+  void eval() {
+    train(/*on=*/false);
+  }
+  /// True if the module is in training mode.
+  bool is_training() const {
+    return attr("training", true).toBool();
+  }
+
+  /// Recursively casts all parameters to the given `dtype` and `device`.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  void to(at::Device device, at::ScalarType dtype, bool non_blocking = false);
+
+  /// Recursively casts all parameters to the given dtype.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  void to(at::ScalarType dtype, bool non_blocking = false);
+
+  /// Recursively moves all parameters to the given device.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  void to(at::Device device, bool non_blocking = false);
+
+  void save(
+      std::ostream& out,
+      const ExtraFilesMap& extra_files = ExtraFilesMap()) const;
+
+  void save(
+      const std::string& filename,
+      const ExtraFilesMap& extra_files = ExtraFilesMap()) const;
+
+  void _save_for_mobile(
+      std::ostream& out,
+      const ExtraFilesMap& extra_files = ExtraFilesMap(),
+      bool save_mobile_debug_info = false,
+      bool use_flatbuffer = false) const;
+
+  void _save_for_mobile(
+      const std::string& filename,
+      const ExtraFilesMap& extra_files = ExtraFilesMap(),
+      bool save_mobile_debug_info = false,
+      bool use_flatbuffer = false) const;
+
+  Module copy() const;
+
+  Module deepcopy(c10::optional<at::Device> device = c10::nullopt) const;
+
+  // Clones both the underlying `ClassType` and the module instance(data), this
+  // function creates a new `ClassType` and returns a new instance that has the
+  // same data as the current instance but with the new type, shared ClassType
+  // will be preserved as well
+  Module clone(bool inplace = false) const;
+
+  // Clones both the underlying `ClassType` and the module instance(data), this
+  // function creates a new `ClassType` and returns a new instance that has the
+  // same data as the current instance but with the new type, shared ClassType
+  // will be preserved as well. Also allows the caller to specify a set of
+  // method and attribute names to not clone.
+  Module clone(
+      bool inplace,
+      const std::unordered_set<std::string>& ignored_method,
+      const std::unordered_set<std::string>& ignored_attributes) const;
+
+  void clone_method(const Module& orig, const std::string& name);
+
+  IValue operator()(std::vector<IValue> inputs);
+
+  template <typename... Types>
+  IValue create_class(const c10::QualifiedName& name, Types&&... args) const {
+    return create_class(name, {IValue(std::forward<Types>(args))...});
+  }
+
+  IValue create_class(const c10::QualifiedName& name, Stack stack) const;
+
+  inline bool operator==(const Module& y) const noexcept {
+    return _ivalue() == y._ivalue();
+  }
+
+  void set_delete_memory(std::shared_ptr<char> delete_mem) {
+    mem_to_delete_ = std::move(delete_mem);
+  }
+
+  // A set of functions to maintain input shapes through torch.jit.save and
+  // torch.jit.load. It only works on tensors and lists/dicts of tensors
+  // because tracing is only supported by these types.
+  void store_traced_inputs(std::string func_name, std::vector<IValue> inputs) {
+    if (inputs.size() == 0) {
+      return;
+    }
+    auto c10_inputs = c10::impl::GenericList(AnyType::get());
+    for (IValue& value : inputs) {
+      // Not checking whether this is traceable type as that is already checked
+      // higher up in the stack and changing that would require a larger
+      // restructuring.
+      c10_inputs.emplace_back(std::move(value));
+    }
+    traced_inputs_.insert_or_assign(func_name, c10_inputs);
+  }
+
+  c10::Dict<std::string, c10::impl::GenericList> retrieve_traced_inputs()
+      const {
+    return traced_inputs_;
+  }
+
+ private:
+  Module clone_impl(
+      std::unordered_map<TypePtr, TypePtr>& type_remap,
+      bool inplace,
+      IValue::HashAliasedIValueMap memo,
+      const std::unordered_set<std::string>& ignored_methods,
+      const std::unordered_set<std::string>& ignored_attributes) const;
+
+  void clone_method(
+      const Module& orig,
+      const Function& method,
+      const std::unordered_map<TypePtr, TypePtr>& type_remap);
+
+  c10::QualifiedName getNameForMethod(std::string basename) const {
+    return QualifiedName(*type()->name(), std::move(basename));
+  }
+
+  void to_impl(
+      const c10::optional<at::Device>& device,
+      const c10::optional<at::ScalarType>& dtype,
+      bool non_blocking);
+
+  // Extra handle for the module to delete when itself is deleted
+  std::shared_ptr<char> mem_to_delete_;
+
+  // Map of function names to the traced inputs that they have been traced with
+  c10::Dict<std::string, c10::impl::GenericList> traced_inputs_;
+
+  // Mutex to keep registring buffer or parameter thread safe.
+  std::shared_ptr<std::mutex> register_mutex_ = std::make_shared<std::mutex>();
+};
+
+// C++ equivalent api of `torch.jit.freeze`. See documentation there for
+// details.
+TORCH_API Module freeze(
+    const Module& module,
+    const c10::optional<std::vector<std::string>>& preserved_attrs =
+        c10::nullopt,
+    bool optimize_numerics = true);
+
+// C++ equivalent api of `torch.jit.optimize_for_inference`. See documentation
+// there for details.
+TORCH_API Module optimize_for_inference(
+    Module& module,
+    const std::vector<std::string>& other_methods = {});
+
+enum class FusionBehavior { STATIC, DYNAMIC };
+
+using FusionStrategy = std::vector<std::pair<FusionBehavior, size_t>>;
+// clang-format off
+/*
+Sets the type and number of specializations that can occur during fusion.
+
+Usage: provide a list of pairs (type, depth) where type is one of STATIC or DYNAMIC
+and depth is an integer.
+
+Behavior - static vs dynamic:
+    In STATIC fusion, fused ops are compiled to have fixed input shapes. The shape is determined
+    based on some initial profiling runs.
+    In DYNAMIC fusion, fused ops are compiled to have variable input shapes, so that multiple
+    shapes are possible.
+
+In both cases, we also recompile on new striding behavior, device, or dtype.
+
+Behavior - fallback functions & depth:
+    When an input doesn't match the format required by the specialized compiled op, it will run
+    a fallback function. Fallback functions are recursively be compiled and specialized based
+    on the observed tensor shapes. Since compilation can be slow, the "depth" parameter is provided to
+    limit the number of specializations that can be compiled, before giving up on recompiling and
+    falling back to a completely un-fused, un-specialized implementation.
+
+The list of (type, depth) pairs controls the type of specializations and the number of
+specializations. For example: [(STATIC, 2), (DYNAMIC, 2)] indicates that the first
+two specializations will use static fusions, the following two specializations will use
+dynamic fusion, and any inputs that satisfy none of the 4 options will run an
+unfused implementation.
+
+NB: in the future, if more as more fusion backends are added there may be more granular
+apis for specific fusers.
+*/
+// clang-format on
+TORCH_API FusionStrategy getFusionStrategy();
+// returns previous strategy
+TORCH_API FusionStrategy setFusionStrategy(FusionStrategy& fusion_strategy);
+
+namespace detail {
+
+struct TORCH_API SlotCursor {
+  Module module_;
+  int64_t i_; // slot offset, -1 indicates the module itself
+};
+
+} // namespace detail
+
+// This iterator allows the (optionally recursive) enumeration of
+// the  members of a Module. It performs a depth-first pre-order
+// traversal of the module. The Policy template parameter determines
+// which slots of the object should be included. For instance,
+// when iterating parameters, we return the parameter tensors,
+// but skip modules, buffers, and other attributes.
+// See ModulePolicy for comments about Policy object's API.
+template <typename Policy>
+struct slot_iterator_impl {
+  using SlotCursor = detail::SlotCursor;
+  using value_type = typename Policy::value_type;
+  slot_iterator_impl(
+      Module root,
+      bool recurse, // if true, do a depth-first search, otherwise, just look at
+                    // slots of root
+      bool return_module) // if true include root itself as the first thing
+                          // visited (used in modules())
+      : cursors_({SlotCursor{std::move(root), return_module ? -1 : 0}}),
+        recurse_(recurse) {
+    // advance iterator to first valid element (or the end, if empty)
+    while_not_valid_next();
+  }
+  // empty cursors_, represents end of iteration
+  slot_iterator_impl() : recurse_(false) {}
+  value_type operator*() const {
+    return Policy::create(cursors_, cur());
+  }
+  value_type operator->() const {
+    return **this;
+  }
+  slot_iterator_impl& operator++() {
+    next_valid();
+    return *this;
+  }
+  slot_iterator_impl operator++(int) {
+    // this is really expensive, should we delete it so people don't use it
+    // instead of prefix?
+    slot_iterator_impl old = *this;
+    ++(*this);
+    return old;
+  }
+
+ private:
+  // return_module() is a corner case where instead of returning a submodule
+  // of root, we are returning root itself, because we are iterating modules(),
+  // which contains the root module itself.
+  // It is represented with a single SlotCursor whose index is -1.
+  bool return_module() const {
+    return top().i_ == -1;
+  }
+  const SlotCursor& top() const {
+    return cursors_.back();
+  }
+  SlotCursor& top() {
+    return cursors_.back();
+  }
+  IValue cur() const {
+    return return_module() ? top().module_._ivalue()
+                           : top().module_._ivalue()->getSlot(top().i_);
+  }
+
+  // advance to the next slot in a depth first pre-order traversal of the
+  // modules slots. This function does not guarantee the next slot is a
+  // valid element of the iteration. That is done by valid().
+  // invariant: !cursors_.empty()
+  void next() {
+    // we just returned the module itself, advance i_ to 0 so we are now
+    // at the first slot of the module.
+    if (return_module()) {
+      ++top().i_;
+      return;
+    }
+    // the last traversal action advanced beyond the number of slots in the
+    // module so continue the iteration in the parent.
+    if (top().i_ >= int64_t(top().module_._ivalue()->type()->numAttributes())) {
+      cursors_.pop_back();
+      if (!cursors_.empty()) {
+        ++top().i_;
+      }
+      return;
+    }
+    // if the current thing is a module, we have to scan it for recursive
+    // traversals. We do this by adding a new SlotCursor to track the traversal.
+    if (recurse_ &&
+        top().module_._ivalue()->type()->getAttribute(top().i_)->is_module()) {
+      cursors_.emplace_back(SlotCursor{cur().toModule(), 0});
+      return;
+    }
+    // common case: advance to the next slot.
+    ++top().i_;
+  }
+  // is the current position of the iterator a valid one?
+  // otherwise, we have to continue advancing.
+  bool valid() const {
+    return top().i_ <
+        int64_t(top().module_._ivalue()->type()->numAttributes()) &&
+        Policy::valid(
+               top().module_._ivalue()->type(),
+               top().i_,
+               top().module_._ivalue()->getSlot(top().i_));
+  }
+  void while_not_valid_next() {
+    // advance iteration until we are either at the end (cursors_.empty())
+    // or in a valid state. return_module() is a special case,
+    // and is always considered valid, regardless of Policy, because it is
+    // it is only true when we are iterating modules.
+    while (!cursors_.empty() && !return_module() && !valid()) {
+      next();
+    }
+  }
+  void next_valid() {
+    // avoid crashing if this is empty
+    if (cursors_.empty()) {
+      return;
+    }
+    // advance to next element, which is maybe not valid
+    next();
+    while_not_valid_next();
+  }
+
+  std::vector<SlotCursor> cursors_;
+  bool recurse_;
+
+  friend inline bool operator!=(
+      const slot_iterator_impl<Policy>& a,
+      const slot_iterator_impl<Policy>& b) {
+    // we are finished iteration when we have no more iteration SlotCursors.
+    // end is always an empty iterator with no cursors.
+    return (a.cursors_.empty() != b.cursors_.empty());
+  }
+};
+
+// This type represents lists of parameters, attributes, and
+// submodules contained in the module. It is abstract because
+// they are not stored directly in std::vectors but inside the
+// module's IValue object itself.
+template <typename Policy>
+struct slot_list_impl {
+  using iterator = slot_iterator_impl<Policy>;
+  using const_iterator = slot_iterator_impl<Policy>;
+  using value_type = typename iterator::value_type;
+  slot_iterator_impl<Policy> begin() const {
+    return slot_iterator_impl<Policy>(module_, recurse_, return_module_);
+  }
+  slot_iterator_impl<Policy> end() const {
+    return slot_iterator_impl<Policy>();
+  }
+  size_t size() const {
+    if (!size_) {
+      size_ = size_t(0);
+      // NOLINTNEXTLINE(clang-diagnostic-unused-variable)
+      for (const value_type& s : *(this)) {
+        (void)s; // Suppress unused variable warning
+        ++*size_;
+      }
+    }
+    return *size_;
+  }
+
+  slot_list_impl(Module module, bool recurse, bool return_module)
+      : module_(std::move(module)),
+        recurse_(recurse),
+        return_module_(return_module),
+        size_(c10::nullopt) {
+    if (!recurse && !return_module && Policy::all_slots) {
+      size_ = module_.num_slots();
+    }
+  }
+
+ private:
+  Module module_;
+  bool recurse_;
+  bool return_module_;
+  // size of this list, cached on first request
+  // when we need to filter the slot list
+  mutable c10::optional<size_t> size_;
+  friend struct Module;
+};
+
+namespace detail {
+
+// slot_iterator_impl always iterate over all the slots in a module,
+// the Policy template argument determines slots should be returned and their
+// types
+struct TORCH_API ModulePolicy {
+  // the type of the value being returned
+  using value_type = Module;
+
+  // the logic for creating the type being returned, given the raw IValue
+  // of that object.
+  static value_type create(
+      const std::vector<detail::SlotCursor>& cursors,
+      IValue v) {
+    return Module(std::move(v).toObject());
+  }
+  // is slot i in typ something that this iterator should return, otherwise,
+  // we skip it.
+  static bool valid(const ClassTypePtr& typ, size_t i, const IValue& v) {
+    return typ->getAttribute(i)->is_module();
+  }
+  // are we going to return everything? If so, we can optimize the calculate
+  // of the size of the list.
+  static CONSTEXPR_EXCEPT_WIN_CUDA bool all_slots = false;
+};
+
+struct TORCH_API ParameterPolicy {
+  using value_type = at::Tensor;
+  static value_type create(
+      const std::vector<detail::SlotCursor>& cursors,
+      IValue v) {
+    return std::move(v).toTensor();
+  }
+  static bool valid(const ClassTypePtr& typ, size_t i, const IValue& v) {
+    return typ->is_parameter(i) && v.isTensor();
+  }
+  static CONSTEXPR_EXCEPT_WIN_CUDA bool all_slots = false;
+};
+
+struct TORCH_API BufferPolicy {
+  using value_type = at::Tensor;
+  static value_type create(
+      const std::vector<detail::SlotCursor>& cursors,
+      IValue v) {
+    return std::move(v).toTensor();
+  }
+  static bool valid(const ClassTypePtr& typ, size_t i, const IValue& v) {
+    return typ->getAttribute(i)->isSubtypeOf(*TensorType::get()) &&
+        typ->is_buffer(i);
+  }
+  static CONSTEXPR_EXCEPT_WIN_CUDA bool all_slots = false;
+};
+
+struct TORCH_API AttributePolicy {
+  using value_type = IValue;
+  static value_type create(
+      const std::vector<detail::SlotCursor>& cursors,
+      IValue v) {
+    return v;
+  }
+  static bool valid(const ClassTypePtr& typ, size_t i, const IValue& v) {
+    return true;
+  }
+  static CONSTEXPR_EXCEPT_WIN_CUDA bool all_slots = true;
+};
+
+// take a Policy object, and make a version of it that returns the slot.
+// along with the fully qualified name of that slot. This is used for the named_
+// variants like named_parameters().
+template <typename Policy>
+struct NamedPolicy {
+  using value_type = Named<typename Policy::value_type>;
+  static value_type create(
+      const std::vector<detail::SlotCursor>& cursors,
+      IValue v) {
+    std::string name;
+    if (cursors.size() == 1) {
+      name = (cursors.back().i_ == -1) ? "" : nameFragment(cursors.back());
+    } else {
+      std::ostringstream ss;
+      for (const auto i : c10::irange(cursors.size())) {
+        if (i > 0) {
+          ss << ".";
+        }
+        ss << nameFragment(cursors[i]);
+      }
+      name = ss.str();
+    }
+    return value_type{std::move(name), Policy::create(cursors, std::move(v))};
+  }
+  static bool valid(const ClassTypePtr& t, size_t i, const IValue& v) {
+    return Policy::valid(t, i, v);
+  }
+  static constexpr bool all_slots = Policy::all_slots;
+
+ private:
+  static std::string nameFragment(const detail::SlotCursor& f) {
+    return f.module_.type()->getAttributeName(f.i_);
+  }
+};
+
+} // namespace detail
+
+TORCH_API bool& getInlineEverythingMode();
+
+namespace script {
+// We once had a `script::` namespace that was deleted. This is for backcompat
+// of the public API; new code should not use this type alias.
+using Module = ::torch::jit::Module;
+using ExtraFilesMap = ::torch::jit::ExtraFilesMap;
+} // namespace script
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/api/object.h

@@ -0,0 +1,200 @@
+#pragma once
+
+#include <ATen/core/functional.h>
+#include <ATen/core/ivalue.h>
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/api/method.h>
+
+#include <utility>
+
+namespace torch::jit {
+
+struct Resolver;
+using ResolverPtr = std::shared_ptr<Resolver>;
+
+using ObjectPtr = c10::intrusive_ptr<c10::ivalue::Object>;
+
+// Throw this in C++ land if `attr` fails. This will be converted to a Python
+// AttributeError by the Python binding code
+class ObjectAttributeError : public std::runtime_error {
+ public:
+  ObjectAttributeError(const std::string& what) : std::runtime_error(what) {}
+};
+
+struct TORCH_API Object {
+  Object() = default;
+  Object(const Object&) = default;
+  Object& operator=(const Object&) = default;
+  Object(Object&&) noexcept = default;
+  Object& operator=(Object&&) noexcept = default;
+  Object(ObjectPtr _ivalue) : _ivalue_(std::move(_ivalue)) {}
+  Object(std::shared_ptr<CompilationUnit> cu, const c10::ClassTypePtr& type);
+  Object(
+      c10::QualifiedName,
+      std::shared_ptr<CompilationUnit> cu,
+      bool shouldMangle = false);
+
+  ObjectPtr _ivalue() const {
+    TORCH_INTERNAL_ASSERT(_ivalue_);
+    return _ivalue_;
+  }
+
+  c10::ClassTypePtr type() const {
+    return _ivalue()->type();
+  }
+
+  struct Property {
+    std::string name;
+    Method getter_func;
+    c10::optional<Method> setter_func;
+  };
+
+  void setattr(const std::string& name, c10::IValue v) {
+    if (_ivalue()->type()->hasConstant(name)) {
+      TORCH_CHECK(
+          false,
+          "Can't set constant '",
+          name,
+          "' which has value:",
+          _ivalue()->type()->getConstant(name));
+    } else if (auto slot = _ivalue()->type()->findAttributeSlot(name)) {
+      const c10::TypePtr& expected = _ivalue()->type()->getAttribute(*slot);
+      TORCH_CHECK(
+          v.type()->isSubtypeOf(*expected),
+          "Expected a value of type '",
+          expected->repr_str(),
+          "' for field '",
+          name,
+          "', but found '",
+          v.type()->repr_str(),
+          "'");
+      _ivalue()->setSlot(*slot, std::move(v));
+    } else {
+      TORCH_CHECK(false, "Module has no attribute '", name, "'");
+    }
+  }
+
+  c10::IValue attr(const std::string& name) const {
+    if (auto r = _ivalue()->type()->findAttributeSlot(name)) {
+      return _ivalue()->getSlot(*r);
+    }
+    if (auto r = _ivalue()->type()->findConstantSlot(name)) {
+      return _ivalue()->type()->getConstant(*r);
+    }
+    std::stringstream err;
+    err << _ivalue()->type()->repr_str() << " does not have a field with name '"
+        << name.c_str() << "'";
+    throw ObjectAttributeError(err.str());
+  }
+
+  c10::IValue attr(const std::string& name, c10::IValue or_else) const {
+    if (auto r = _ivalue()->type()->findAttributeSlot(name)) {
+      return _ivalue()->getSlot(*r);
+    }
+    if (auto r = _ivalue()->type()->findConstantSlot(name)) {
+      return _ivalue()->type()->getConstant(*r);
+    }
+    return or_else;
+  }
+
+  bool hasattr(const std::string& name) const {
+    return _ivalue()->type()->hasAttribute(name) ||
+        _ivalue()->type()->hasConstant(name);
+  }
+
+  // each object owns its methods. The reference returned here
+  // is guaranteed to stay valid until this module has been destroyed
+  Method get_method(const std::string& name) const {
+    if (auto method = find_method(name)) {
+      return *method;
+    }
+    AT_ERROR("Method '", name, "' is not defined.");
+  }
+
+  const std::vector<Method> get_methods() const {
+    return c10::fmap(type()->methods(), [&](Function* func) {
+      return Method(_ivalue(), func);
+    });
+  }
+
+  bool has_property(const std::string& name) const {
+    for (const auto& prop : type()->properties()) {
+      if (prop.name == name) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  const Property get_property(const std::string& name) const {
+    for (const auto& prop : type()->properties()) {
+      if (prop.name == name) {
+        c10::optional<Method> setter = c10::nullopt;
+        if (prop.setter) {
+          setter = Method(_ivalue(), prop.setter);
+        }
+        return Property{
+            prop.name, Method(_ivalue(), prop.getter), std::move(setter)};
+      }
+    }
+    AT_ERROR("Property '", name, "' is not defined.");
+  }
+
+  const std::vector<Property> get_properties() const {
+    return c10::fmap(type()->properties(), [&](ClassType::Property prop) {
+      c10::optional<Method> setter = c10::nullopt;
+      if (prop.setter) {
+        setter = Method(_ivalue(), prop.setter);
+      }
+      return Property{
+          std::move(prop.name),
+          Method(_ivalue(), prop.getter),
+          std::move(setter)};
+    });
+  }
+
+  c10::optional<Method> find_method(const std::string& basename) const;
+
+  /// Run a method from this module.
+  ///
+  /// For example:
+  /// @code
+  ///   IValue output = module->run("relu_script", a, b);
+  /// @endcode
+  ///
+  /// To get a compile a module from a source string, see torch::jit::compile
+  ///
+  /// @param method_name The name of the method to run
+  /// @param args Arguments to be passed to the method
+  /// @return An IValue containing the return value (or values if it is a tuple)
+  /// from the method
+  template <typename... Types>
+  IValue run_method(const std::string& method_name, Types&&... args) {
+    return get_method(method_name)({IValue(std::forward<Types>(args))...});
+  }
+
+  // so that C++ users can easily add methods
+  void define(const std::string& src, const ResolverPtr& resolver = nullptr);
+
+  size_t num_slots() const {
+    return _ivalue()->slots().size();
+  }
+
+  // shallow copy the object
+  Object copy() const;
+
+  // Copies all the attributes of the object recursively without creating new
+  // `ClassType`, including deepcopy of Tensors
+  Object deepcopy() const;
+
+ private:
+  // mutable be we lazily initialize in module_object.
+  mutable ObjectPtr _ivalue_;
+};
+
+namespace script {
+// We once had a `script::` namespace that was deleted. This is for backcompat
+// of the public API; new code should not use this type alias.
+using Object = ::torch::jit::Object;
+} // namespace script
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_debug_handler.h

@@ -0,0 +1,140 @@
+#pragma once
+#include <ATen/core/ivalue.h>
+
+#include <torch/csrc/jit/backends/backend_detail.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/ir/scope.h>
+
+#include <atomic>
+
+namespace torch {
+namespace jit {
+
+/*
+ *  BackendDebugHandleManager is responsible for issuing debug handles to
+ *  backends. Debug handles are associated with nodes of a graph.
+ *  BackendDebugHandleManager also maintains a map
+ *  [debug-handle, DebugInfoTuple = {source range, inlined callstack ptr]} that
+ *  will help generate a callstack for exception raised using debug handles.
+ *  Effectively debug handles are something that is given to backend and later
+ *  when an exception occurs in the backend, backend can tell, using debug
+ *  handle, that an exception occurred here. Then the runtime can generate
+ *  callstack correspoding to the exception.
+ *  There are two parts to BackendDebugHandleManager:
+ *  1. static std::atomic debug_handle
+ *  2. Map of [debug-handle, DebugInfoTuple]
+ *
+ *  About 1:
+ *  Why do they have to be unique. The reason is that by ensuring
+ *  uniqueness of debug handles, we remove the burden of another layer of
+ *  mapping where we need to say this set of debug handles were generated for
+ *  this lowered module or this bytecode function. This simplifies the API for
+ *  serialization since debug handles can uniquely identify DebugInfoTuple.
+ *  Thus simplifies the runtime API for throwing exception. Exception throwing
+ *  only needs to know debug_handle and not which module or method threw it.
+ *  There are 2 issues to keep in mind, though,for static std::atomic
+ *  debug_handle: A. Performance implications of using atomic variable. However
+ *  this is only used for compilation so we assume to absorb some of that
+ *  penalty. Plus if there is no contention then we should have less to worry
+ *  about. B. If repeated compilation is part of a long running process then we
+ *  may overflow int64_t. We may detect and fail on this. For now this is not
+ *  done.
+ *
+ *  Now about 2:
+ *  There are two usecases for [debug-handle, DebugInfoTuple]
+ *  A. During bytecode generation the DebugInfoTuple corresponding to the nodes
+ *  of the inlined graph being serialized, are stored in this object and a
+ *  unique debug handle is returned. This unique debug handle is stored in
+ *  mobile_debug info for pytorch lite models. It will be used for raising
+ *  exceptions as well as profiling. B. During backend lowering, each backend's
+ *  preprocess/compile method can compile method's graph and serialize those
+ *  methods. Once the method is lowered to backend, graph is essentially lost.
+ *  Without access to graph it is hard to generate model level debug info. Thus
+ *  the debug handles provide a way to map nodes of the graph to the model level
+ *  debug info.
+ *
+ *  During byte-code model serialization, [debug-handle, DebugInfoTuple] is
+ *  serialized. Now we know a. debug handles and b. how to map debug handles to
+ *  model source code. Thus we can either do eager symbolication by converting
+ *  debug handles to corresponding source code at runtime, or do lazy
+ *  symbolicattion offline.
+ *
+ *  Note that it is not necessary to serialize [debug-handle, DebugInfoTuple]
+ *  corresponding to lowered backend if the lowering process, that is
+ *  preprocess/compile, and execution happens in the same session, then eager
+ *  symbolication can be employed.
+ *
+ *  Now how does BackendDebugHandleManager capture all of the above?
+ *  By providing two API.
+ *  1. getNextDebugHandle which given a Node* returns a unique debug handle,
+ *     that will uniquely identify DebugInfoTuple.
+ *     and
+ *  2. getCallStackPtrMap which returns the map
+ *     [debug-handle, DebugInfoTuple]
+ *
+ *  1 provides debug handles to backends and 2 provides runtime a way to map
+ *  debug handles to source level debug info.
+ *
+ *  So why does debug handle map to DebugInfoTuple = {source range and inlined
+ *  cs}? {debug_handle, source_range_tag, serialized_callstack} Take this
+ *  example: class L(nn.Module): def __init__(self):
+ *      ...
+ *    def forward(self, x):
+ *      return x * 5
+ *  class M(nn.Module):
+ *    def __init__(self):
+ *      ...
+ *    def forward(self, x):
+ *      return x - 2
+ *  class N(nn.Module):
+ *    def __init__(self):
+ *      self.m = M()
+ *    def forward(self, x):
+ *      return self.m(x) + 3
+ *  m = torch.jit.script(N())
+ *  Once you inline m's forward method, m.forward.graph will look something
+ *  like this
+ *  graph(%self...):
+ *   %x = aten::mul(..)
+ *   %x = aten::sub(x, ..)
+ *   %y = aten::add(x, ..)
+ *   ..
+ *  Inlined callstack ptr for these two nodes will look like:
+ *  aten::mul's inlined CS (callstack): [N.forward, source range] -> [M.forward,
+ *  source range] aten::sub's inlined CS (callstack): [N.forward, source range]
+ *  aten::add's inlined CS: null
+ *  mul node's inlined CS contains only information about the callsites' source
+ *  range The information about mul node's source range ('return x * 5') is not
+ *  available in its inlined CS. It is rather part of node's source range
+ *  instead of inlined CS. Thus to get full stack: [N.forward, source range] ->
+ *  [M.forward, source range] -> [aten::mul's source range] We need to track
+ *  mul's source range and inlined CS both.
+ */
+
+using BackendDebugInfoMapType =
+    std::unordered_map<torch::jit::DebugHandleType, DebugInfoTuple>;
+
+/*
+ * This class is used to generate debug info map.
+ * backend's preprocess will call generate_debug_handles (see
+ * backend_detail.cpp), which uses debug_handle_manager to generate debug
+ * handles. When lowering process finishes, calling stopRecording will
+ * return debug info map from debug_handle_manager
+ */
+class TORCH_API BackendDebugInfoRecorder {
+ public:
+  BackendDebugInfoRecorder() = default;
+  int64_t getNextDebugHandle(const Node* node);
+  // Reason this is not done as RAII is that work done in stopRecording
+  // can throw, and throwing with dtor will call terminate and thus voids any
+  // exception catching at a higher level.
+  BackendDebugInfoMapType stopRecording();
+  NodeToDebugHandle generate_debug_handles(const std::shared_ptr<Graph>& graph);
+
+ private:
+  static std::atomic<DebugHandleType> unique_debug_handle_;
+  BackendDebugInfoMapType handles_to_inlined_callstack_ptrs_;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_detail.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <torch/csrc/jit/api/module.h>
+
+#include <ATen/core/jit_type.h>
+
+#include <functional>
+
+namespace torch {
+namespace jit {
+
+using DebugHandleType = int64_t;
+
+using NodeToDebugHandle = std::unordered_map<Node*, DebugHandleType>;
+
+using BackendDebugHandleGenerator =
+    std::function<NodeToDebugHandle(const std::shared_ptr<Graph>&)>;
+
+namespace detail {
+
+using BackendPreprocessFunction = std::function<c10::IValue(
+    const Module&,
+    const c10::Dict<IValue, IValue>&,
+    const BackendDebugHandleGenerator& generate_debug_handles)>;
+
+TORCH_API void registerBackendPreprocessFunction(
+    const std::string& name,
+    const BackendPreprocessFunction& preprocess);
+
+bool hasBackendPreprocessFunction(const std::string& name);
+
+BackendPreprocessFunction getBackendPreprocessFunction(const std::string& name);
+
+TORCH_API Module codegen_backend_module(
+    const std::string& backend_name,
+    const Module& orig_module,
+    const c10::Dict<IValue, IValue>& method_compile_spec,
+    const c10::DictTypePtr& any_dict_ty);
+} // namespace detail
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_exception.h

@@ -0,0 +1,54 @@
+#pragma once
+#include <c10/util/Exception.h>
+
+namespace c10 {
+class TORCH_API BackendRuntimeException : public c10::Error {
+ public:
+  // Use debug_handle to throw exception
+  BackendRuntimeException(
+      SourceLocation loc,
+      std::string msg,
+      int64_t debug_handle)
+      : c10::Error(loc, msg) {
+    debug_handles.push_back(debug_handle);
+  }
+  // If rethrowing, can push another debug_handle
+  // This is useful in couple of scenarios.
+  // 1. A submodule is lowered and lite interperter has CallMethod
+  //    to lowered module's method. In this case lowered module will throw with
+  //    a handle, plus there will be another debug handle corresponding
+  //    to the CallMethod node in lite interpreter. Both together give complete
+  //    trace. This function allows lite interpreter to rethrow with debug
+  //    handle it has for CallMethod.
+  // 2. Another scenarios is when lite interperter can make function calls or
+  //    the lowered backend also has function call ability. Thus we have
+  //    multiple function frames. Now we need a stack of handles to symbolicate
+  //    entire stack trace.
+  void pushDebugHandle(int64_t debug_handle) {
+    debug_handles.push_back(debug_handle);
+  }
+  const std::vector<int64_t>& getDebugHandles() {
+    return debug_handles;
+  }
+
+ private:
+  // Stores stack of debug handles.
+  std::vector<int64_t> debug_handles;
+};
+
+} // namespace c10
+#define TORCH_DELEGATED_BACKEND_THROW(cond, msg, debug_handle) \
+  if (C10_UNLIKELY_OR_CONST(!(cond))) {                        \
+    throw ::c10::BackendRuntimeException(                      \
+        {__func__, __FILE__, static_cast<uint32_t>(__LINE__)}, \
+        msg,                                                   \
+        debug_handle);                                         \
+  }
+
+#define TORCH_DELEGATED_BACKEND_RETHROW(e, debug_handle) \
+  do {                                                   \
+    e.pushDebugHandle(debug_handle);                     \
+    throw;                                               \
+  } while (false)
+
+#define DEBUG_HANDLE_UNKNOWN -1

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_init.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <torch/csrc/jit/python/pybind.h>
+#include <torch/csrc/utils/pybind.h>
+
+namespace torch {
+namespace jit {
+// Initialize Python bindings for JIT to_<backend> functions.
+void initJitBackendBindings(PyObject* module);
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_interface.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <torch/custom_class.h>
+
+namespace torch {
+namespace jit {
+
+// Interface for a JIT backend.
+class TORCH_API PyTorchBackendInterface : public torch::CustomClassHolder {
+ public:
+  PyTorchBackendInterface() noexcept;
+  ~PyTorchBackendInterface() override;
+
+  // Returns true if the backend is available to process delegation calls.
+  virtual bool is_available() = 0;
+
+  // Compile the module contained in \p processed using the details provided in
+  // \p method_compile_spec for each module method that should be compiled for
+  // the backend. \p method_compile_spec should be of type Dict<string, Any>.
+  // \returns a dictionary of type Dict<string, Any> that contains a backend
+  // handle each method that can run on the backend (i.e. each key in \p
+  // method_compile_spec).
+  virtual c10::impl::GenericDict compile(
+      c10::IValue processed,
+      c10::impl::GenericDict method_compile_spec) = 0;
+
+  // Execute the method specified by \p handle using \p inputs. \returns the
+  // outputs as a tuple.
+  virtual c10::impl::GenericList execute(
+      c10::IValue handle,
+      c10::impl::GenericList inputs) = 0;
+};
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_preprocess.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <torch/csrc/jit/backends/backend_detail.h>
+namespace torch {
+namespace jit {
+class backend_preprocess_register {
+  std::string backend_name_;
+
+ public:
+  backend_preprocess_register(
+      const std::string& name,
+      const detail::BackendPreprocessFunction& preprocess)
+      : backend_name_(name) {
+    detail::registerBackendPreprocessFunction(name, preprocess);
+  }
+};
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_resolver.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <torch/csrc/jit/frontend/resolver.h>
+
+namespace torch {
+namespace jit {
+// Create a Resolver for use in generating LoweredModules for specific backends.
+TORCH_API std::shared_ptr<Resolver> loweredModuleResolver();
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/convert_to_ssa.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+// Convert a graph with Loads & Stores into SSA form
+TORCH_API void ConvertToSSA(std::shared_ptr<Graph>& graph);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/error_report.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/frontend/tree.h>
+
+namespace torch {
+namespace jit {
+
+struct Call {
+  std::string fn_name;
+  SourceRange caller_range;
+};
+
+struct TORCH_API ErrorReport : public std::exception {
+  ErrorReport(const ErrorReport& e);
+
+  explicit ErrorReport(SourceRange r);
+  explicit ErrorReport(const TreeRef& tree) : ErrorReport(tree->range()) {}
+  explicit ErrorReport(const Token& tok) : ErrorReport(tok.range) {}
+
+  const char* what() const noexcept override;
+
+  struct TORCH_API CallStack {
+    // These functions are used to report why a function was being compiled
+    // (i.e. what was the call stack of user functions at compilation time that
+    // led to this error)
+    CallStack(const std::string& name, const SourceRange& range);
+    ~CallStack();
+
+    // Change the range that is relevant for the current function (i.e. after
+    // each successful expression compilation, change it to the next expression)
+    static void update_pending_range(const SourceRange& range);
+  };
+
+  static std::string current_call_stack();
+
+ private:
+  template <typename T>
+  friend const ErrorReport& operator<<(const ErrorReport& e, const T& t);
+
+  mutable std::stringstream ss;
+  OwnedSourceRange context;
+  mutable std::string the_message;
+  std::vector<Call> error_stack;
+};
+
+template <typename T>
+const ErrorReport& operator<<(const ErrorReport& e, const T& t) {
+  e.ss << t;
+  return e;
+}
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/inline_loop_condition.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API void InlineLoopCondition(std::shared_ptr<Graph>& graph);
+TORCH_API void InlineBlockBeforeNode(Node* before_node, Block* block);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/ir_emitter.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/jit/api/module.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/resolver.h>
+#include <torch/csrc/jit/frontend/sugared_value.h>
+#include <torch/csrc/jit/frontend/tree_views.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API void runCleanupPasses(std::shared_ptr<Graph>& to_clean);
+
+TORCH_API bool meaningfulName(const std::string& name);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/resolver.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#include <ATen/core/jit_type.h>
+#include <ATen/core/qualified_name.h>
+#include <torch/csrc/jit/frontend/sugared_value.h>
+
+namespace torch {
+namespace jit {
+
+struct Resolver;
+using ResolverPtr = std::shared_ptr<Resolver>;
+
+/**
+ * class Resolver
+ *
+ * Represents an "outer environment" in which we an look up names and return
+ * a corresponding SugaredValue. This is used during compilation to resolve
+ * references to names which are not defined internal to the graph.
+ *
+ * Example: PythonResolver looks at the enclosing Python scope for `name`.
+ *
+ * NOTE: When adding methods, keep this an abstract class (i.e. all new methods
+ * should be purely virtual). Resist the urge to provide a default
+ * implementation; you should explicitly think about how each resolver would
+ * handle the method.
+ */
+struct Resolver {
+  virtual ~Resolver() = default;
+
+  // Resolve a given name to a SugaredValue. This takes the method `m` that the
+  // caller is currently constructing, since we may need to insert nodes into
+  // the graph to create a value.
+  virtual std::shared_ptr<SugaredValue> resolveValue(
+      const std::string& name,
+      GraphFunction& m,
+      const SourceRange& loc) {
+    return nullptr;
+  }
+
+  // Resolve `name` to a TypePtr.
+  virtual TypePtr resolveType(const std::string& name, const SourceRange& loc) {
+    return nullptr;
+  }
+};
+
+// A resolver that only understands "torch.foo()" lookups.
+struct NativeResolver : public Resolver {
+  std::shared_ptr<SugaredValue> resolveValue(
+      const std::string& name,
+      GraphFunction& m,
+      const SourceRange& loc) override {
+    if (name == "torch") {
+      return std::make_shared<BuiltinModule>("aten");
+    }
+    return nullptr;
+  }
+
+  TypePtr resolveType(const std::string& name, const SourceRange& loc)
+      override {
+    return nullptr;
+  }
+};
+
+inline std::shared_ptr<NativeResolver> nativeResolver() {
+  return std::make_shared<NativeResolver>();
+}
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/source_range.h

@@ -0,0 +1,457 @@
+#pragma once
+#include <c10/util/Exception.h>
+#include <c10/util/Optional.h>
+
+#include <algorithm>
+#include <iterator>
+#include <memory>
+#include <numeric>
+#include <ostream>
+#include <regex>
+#include <sstream>
+#include <unordered_map>
+
+namespace torch::jit {
+
+class SourceRangeUnpickler;
+struct SourceRange;
+
+// A stringlike class backed by a vector of string_view
+// the string represented are logically the concatenation of  the string_views
+// This has advantage of not needing continues memory.
+struct TORCH_API StringCordView {
+  StringCordView();
+  StringCordView(const StringCordView&) = default;
+  StringCordView(StringCordView&&) noexcept = default;
+  StringCordView(
+      std::vector<c10::string_view> inputs,
+      std::vector<std::shared_ptr<std::string>> ownerships);
+
+  StringCordView& operator=(const StringCordView&) = default;
+  StringCordView& operator=(StringCordView&&) noexcept = default;
+
+  size_t size() const {
+    return accumulated_sizes_.back();
+  }
+
+  size_t find(const std::string& tok, size_t start) const;
+  size_t find_regex(const std::string& tok, size_t start) const;
+  StringCordView substr(size_t start, size_t size) const;
+
+  char at(size_t index) const {
+    return *iter_for_pos(index);
+  }
+  char operator[](size_t index) const {
+    return at(index);
+  }
+
+  std::string str() const {
+    std::stringstream ss;
+    for (auto s : pieces_) {
+      ss << std::string(s);
+    }
+    return ss.str();
+  }
+
+  bool operator==(const std::string& rhs) const;
+
+  bool operator==(const StringCordView& rhs) const;
+
+  c10::string_view piece(size_t index) const {
+    return pieces_[index];
+  }
+
+  struct Iterator {
+    Iterator(
+        const StringCordView* str,
+        size_t start_line,
+        size_t start_pos,
+        size_t size)
+        : line_(start_line), pos_(start_pos), str_(str), size_(size) {}
+    explicit Iterator(const StringCordView* str)
+        : Iterator(str, 0, 0, str->size()) {}
+
+    Iterator() : Iterator(nullptr, 0, 0, 0) {}
+
+    Iterator(const Iterator&) = default;
+    Iterator(Iterator&&) = default;
+    Iterator& operator=(const Iterator&) = default;
+    Iterator& operator=(Iterator&&) = default;
+
+    Iterator operator++() {
+      if (size_ == 0) {
+        return *this;
+      }
+      if ((pos_ + 1) < str_->pieces_[line_].size()) {
+        pos_++;
+      } else {
+        line_++;
+        pos_ = 0;
+      }
+      return *this;
+    }
+
+    Iterator operator++(int) {
+      Iterator prev(*this);
+      ++(*this);
+      return prev;
+    }
+
+    Iterator next_iter() const {
+      Iterator next(*this);
+      ++next;
+      return next;
+    }
+
+    Iterator& operator+=(size_t num) {
+      if (!has_next()) {
+        return *this;
+      }
+      size_t target_pos = pos_ + num;
+      if (target_pos >= str_->accumulated_sizes_[line_] &&
+          (line_ + 1) < str_->accumulated_sizes_.size() &&
+          target_pos < str_->accumulated_sizes_[line_ + 1]) {
+        pos_ = target_pos;
+        return *this;
+      }
+
+      size_t target_abs_pos = pos() + num;
+      *this = str_->iter_for_pos(target_abs_pos);
+      return *this;
+    }
+
+    bool operator==(const Iterator& rhs) const {
+      if (!has_next() && !rhs.has_next()) {
+        return true;
+      }
+      return (str_ == rhs.str_) && (line_ == rhs.line_) && (pos_ == rhs.pos_);
+    }
+    bool operator!=(const Iterator& rhs) {
+      return !((*this) == rhs);
+    }
+    bool has_next() const {
+      return size_ > 0 && (line_ < str_->pieces_.size());
+    }
+
+    char operator*() const {
+      TORCH_INTERNAL_ASSERT(line_ < str_->pieces_.size());
+      TORCH_INTERNAL_ASSERT(pos_ < str_->pieces_[line_].size());
+      return str_->pieces_[line_].at(pos_);
+    }
+
+    // returns rest of the line of the current iterator
+    c10::string_view rest_line() const {
+      if (line_ >= str_->pieces_.size()) {
+        return "";
+      }
+
+      c10::string_view cur_line = str_->pieces_[line_];
+      return cur_line.substr(pos_, std::string::npos);
+    }
+
+    size_t pos() const {
+      if (size_ == 0) {
+        return 0;
+      }
+      return str_->accumulated_sizes_[line_] + pos_;
+    }
+
+   private:
+    size_t line_;
+    size_t pos_;
+    const StringCordView* str_;
+    size_t size_;
+    friend struct StringCordView;
+  };
+
+  Iterator begin() const {
+    return Iterator(this, 0, 0, size());
+  }
+  Iterator end() const {
+    return Iterator(this, pieces_.size(), 0, 0);
+  }
+  Iterator iter_for_pos(size_t pos) const;
+
+ private:
+  std::vector<c10::string_view> pieces_;
+  std::vector<size_t> accumulated_sizes_;
+  std::vector<std::shared_ptr<std::string>> owned_strings_;
+};
+
+// Source represents a code segment. It keeps track of:
+//  - text_view : the view into text of the code segment
+//  - filename (optional) : if present, represents the name of the file from
+//                          which the code segment originated.
+//  - starting_line_no : represents the line in the original file where the
+//                       code segment started.
+struct TORCH_API Source {
+  // Whether or not Source should copy the string passed in the constructor.
+  enum CopiesString { COPIES_STRING, DONT_COPY };
+
+  explicit Source(
+      c10::string_view text_view,
+      c10::optional<std::string> filename = c10::nullopt,
+      size_t starting_line_no = 0,
+      std::shared_ptr<SourceRangeUnpickler> gen_ranges = nullptr,
+      CopiesString copies_str = COPIES_STRING)
+      : filename_(std::move(filename)),
+        starting_line_no_(starting_line_no),
+        gen_ranges_(std::move(gen_ranges)) {
+    if (copies_str == COPIES_STRING) {
+      std::shared_ptr<std::string> allocated_str =
+          std::make_shared<std::string>(text_view.data(), text_view.size());
+      text_view_ = StringCordView({*allocated_str}, {allocated_str});
+    } else {
+      text_view_ = StringCordView({text_view}, {});
+    }
+
+    calc_line_start_offsets();
+  }
+
+  explicit Source(
+      StringCordView str,
+      c10::optional<std::string> filename = c10::nullopt,
+      size_t starting_line_no = 0,
+      std::shared_ptr<SourceRangeUnpickler> gen_ranges = nullptr)
+      : text_view_(std::move(str)),
+        filename_(std::move(filename)),
+        starting_line_no_(starting_line_no),
+        gen_ranges_(std::move(gen_ranges)) {
+    calc_line_start_offsets();
+  }
+  // Given a line number (within source_), return the byte offset of the
+  // beginning of that line.
+  size_t offset_for_line(size_t line) const {
+    return line_starting_offsets_.at(line);
+  }
+
+  // Returns number of lines present.
+  size_t num_lines() const {
+    return line_starting_offsets_.size();
+  }
+
+  // Calculate the line (within the code segment) on which `offset` resides.
+  size_t lineno_for_offset(size_t offset) const {
+    auto iter = std::upper_bound(
+        line_starting_offsets_.begin(), line_starting_offsets_.end(), offset);
+    return iter - line_starting_offsets_.begin() - 1;
+  }
+
+  // Calculate the line (within the original source file, if present) on which
+  // `lineno` resides.
+  size_t lineno_to_source_lineno(size_t lineno) const {
+    if (filename_) {
+      return lineno + starting_line_no_;
+    } else {
+      return lineno;
+    }
+  }
+
+  StringCordView get_line(size_t lineno) const {
+    auto start = offset_for_line(lineno);
+    auto size = (lineno + 1) < num_lines() ? offset_for_line(lineno + 1) - start
+                                           : text_view_.size() - start;
+    return text_view_.substr(start, size);
+  }
+
+  const StringCordView& text_str() const {
+    return text_view_;
+  }
+
+  char char_at(size_t index) const {
+    return text_view_.at(index);
+  }
+
+  size_t size() const {
+    return text_view_.size();
+  }
+
+  c10::optional<std::string>& filename() {
+    return filename_;
+  }
+
+  size_t starting_line_no() const {
+    return starting_line_no_;
+  }
+
+  c10::optional<SourceRange> findSourceRangeThatGenerated(
+      const SourceRange& range);
+
+  ~Source() = default;
+
+ private:
+  void calc_line_start_offsets() {
+    line_starting_offsets_.clear();
+    line_starting_offsets_.push_back(0);
+    size_t pos = 0;
+    while ((pos = text_view_.find("\n", pos)) != std::string::npos) {
+      line_starting_offsets_.push_back(++pos);
+    }
+  }
+
+  StringCordView text_view_;
+
+  c10::optional<std::string> filename_;
+  // If filename_ is not present, starting_line_no_ is don't care
+  size_t starting_line_no_;
+  // Starting offsets for lines into the source. e.g. line 0 starts at
+  // line_starting_offsets_[0], etc.
+  std::vector<size_t> line_starting_offsets_;
+
+  std::shared_ptr<SourceRangeUnpickler> gen_ranges_;
+};
+
+// A SourceRange is a reference to subset of a Source, specified by `start` and
+// `end` byte offsets into the source text.
+struct TORCH_API SourceRange {
+  SourceRange(std::shared_ptr<Source> source_view, size_t start_, size_t end_)
+      : source_view_(std::move(source_view)), start_(start_), end_(end_) {
+    if (source_view_) {
+      start_iter_ = source_view_->text_str().iter_for_pos(start_);
+    }
+  }
+
+  SourceRange() : source_view_(nullptr), start_(0), end_(0) {}
+
+  SourceRange(
+      std::shared_ptr<Source> source_view_,
+      StringCordView::Iterator start_iter,
+      size_t end_)
+      : source_view_(std::move(source_view_)),
+        start_(start_iter.pos()),
+        end_(end_),
+        start_iter_(start_iter) {}
+
+  const c10::string_view token_text() const {
+    size_t size = end() - start();
+    return start_iter_.rest_line().substr(0, size);
+  }
+
+  const StringCordView text() const {
+    return source_view_->text_str().substr(start(), end() - start());
+  }
+  size_t size() const {
+    return end() - start();
+  }
+  static const size_t CONTEXT = 3;
+  void highlight(std::ostream& out) const;
+
+  // Customizable version of 'highlight' method.
+  void print_with_context(
+      std::ostream& out,
+      size_t context,
+      bool highlight,
+      const std::string& funcname) const;
+
+  const std::shared_ptr<Source>& source() const {
+    return source_view_;
+  }
+  size_t start() const {
+    return start_;
+  }
+  size_t end() const {
+    return end_;
+  }
+  std::string str() const {
+    std::stringstream ss;
+    highlight(ss);
+    return ss.str();
+  }
+
+  c10::optional<std::tuple<std::string, size_t, size_t>> file_line_col() const {
+    if (!source_view_ || !source()->filename()) {
+      return c10::nullopt;
+    }
+
+    auto lineno = source_view_->lineno_for_offset(start_);
+    auto col_offset = (int)start_ - (int)source_view_->offset_for_line(lineno);
+    // TODO: c10::optional<>::value returns an rvalue ref so can't use it here??
+    return std::make_tuple<std::string, size_t, size_t>(
+        source_view_->filename().value_or(""),
+        source_view_->lineno_to_source_lineno(lineno),
+        (size_t)col_offset);
+  }
+
+  bool operator==(const SourceRange& rhs) const {
+    return start() == rhs.start() && end() == rhs.end() &&
+        source() == rhs.source();
+  }
+
+  bool operator!=(const SourceRange& rhs) const {
+    return !(*this == rhs);
+  }
+
+  c10::optional<SourceRange> findSourceRangeThatGenerated() const {
+    if (!source_view_) {
+      return c10::nullopt;
+    }
+    return source_view_->findSourceRangeThatGenerated(*this);
+  }
+
+ protected:
+  std::shared_ptr<Source> source_view_;
+
+ private:
+  size_t start_;
+  size_t end_;
+  StringCordView::Iterator start_iter_;
+};
+
+// OwnedSourceRange is just like a SourceRange except that it owns a `Source`
+// instead of `Source`. Thus OwnedSourceRange owns a copy of source text.
+struct OwnedSourceRange : public SourceRange {
+  explicit OwnedSourceRange(const SourceRange& source_range)
+      : SourceRange(source_range) {
+    const auto& source = source_range.source();
+    if (source) {
+      source_view_ = std::make_shared<Source>(
+          source->text_str().str(),
+          source->filename(),
+          source->starting_line_no());
+    }
+  }
+};
+
+struct TORCH_API SourceRangeHasher {
+ public:
+  size_t operator()(const torch::jit::SourceRange& key) const;
+};
+
+struct StackEntry {
+  std::string filename;
+  SourceRange range;
+};
+
+TORCH_API void format_stack_trace(
+    std::ostream& out,
+    const std::vector<StackEntry>& entries);
+
+inline std::ostream& operator<<(std::ostream& out, const SourceRange& range) {
+  range.highlight(out);
+  return out;
+}
+
+// A pair of (byte offset, SourceRange) describing a specific segment
+// of the output stream
+struct TaggedRange {
+  TaggedRange(size_t bytes, SourceRange range)
+      : bytes(bytes), range(std::move(range)) {}
+  size_t bytes;
+  SourceRange range;
+};
+using SourceRangeRecords = std::vector<TaggedRange>;
+using SourceRangeTagMap =
+    std::unordered_map<SourceRange, int64_t, SourceRangeHasher>;
+
+} // namespace torch::jit
+
+namespace std {
+template <>
+struct iterator_traits<torch::jit::StringCordView::Iterator> {
+  using value_type = char;
+  using difference_type = ptrdiff_t;
+  using pointer = char*;
+  using reference = char&;
+  using iterator_category = std::forward_iterator_tag;
+};
+} // namespace std

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/source_ref.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+
+#include <ATen/core/ivalue.h>
+#include <c10/macros/Export.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+
+namespace torch {
+namespace jit {
+
+/**
+ * SourceRef does two things:
+ *   1. Owns a Source object.
+ *   2. Serves as lookup key to the owned Source in associative containers, for
+ *      runtime data aggregation.
+ * We don't want to use std::shared_ptr<Source> directly because we want to
+ * support heteogeneous lookup, and also shared_ptr is an implementation detail
+ * which should be encapsulated.
+ */
+class TORCH_API SourceRef : public CustomClassHolder {
+ public:
+  explicit SourceRef(std::shared_ptr<Source> source_view)
+      : source_view_(std::move(source_view)) {}
+  bool operator==(const SourceRef& other) const {
+    return source_view_ == other.source_view_;
+  }
+  bool operator<(const Source& other) const {
+    return source_view_.get() < &other;
+  }
+  friend bool operator<(const Source& other, const SourceRef& self) {
+    return &other < self.source_view_.get();
+  }
+  bool operator<(const SourceRef& other) const {
+    return *this < *other.source_view_.get();
+  }
+  const Source* operator->() const {
+    return source_view_.get();
+  }
+
+ private:
+  std::shared_ptr<Source> source_view_;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/tracer.h

@@ -0,0 +1,412 @@
+#pragma once
+
+#include <ATen/core/Dimname.h>
+#include <ATen/core/class_type.h>
+#include <ATen/core/jit_type.h>
+#include <ATen/core/stack.h>
+#include <ATen/core/symbol.h>
+#include <c10/util/Exception.h>
+#include <torch/csrc/Export.h>
+
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/utils/variadic.h>
+
+#include <cstdint>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+
+namespace torch::jit {
+struct Node;
+struct Value;
+struct Graph;
+struct Module;
+
+namespace tracer {
+
+using ::c10::ivalue::Shared;
+
+using ::c10::IValue;
+using ::c10::ivalue::Future;
+
+using ::c10::ArrayRef;
+using ::c10::TupleType;
+using ::c10::TupleTypePtr;
+using ::c10::ivalue::ConstantString;
+
+using torch::autograd::Variable;
+using variable_list = std::vector<Variable>;
+
+TORCH_API std::atomic<bool>& getTracerStateWarnMode();
+
+struct TORCH_API TracingState
+    : public std::enable_shared_from_this<TracingState> {
+  TracingState();
+  ~TracingState();
+
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::shared_ptr<Graph> graph;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool warn = getTracerStateWarnMode();
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool strict = true;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool force_outplace = false;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::function<std::string(const Variable& var)> lookup_var_name_fn =
+      [](const Variable& var) { return ""; };
+
+  void enterFrame() {
+    env_stack.emplace_back();
+  }
+
+  void leaveFrame() {
+    env_stack.pop_back();
+  }
+
+  void setValue(const IValue& v, Value* value);
+  void delValue(const IValue& var);
+  Value* getValue(const IValue& var);
+  Value* getOutput(const IValue& var, size_t i);
+  bool hasValue(const IValue& var) const;
+
+  Node* createNode(c10::Symbol op_name, size_t num_outputs);
+  void insertNode(Node* node);
+
+ private:
+  using WeakIValue = at::WeakIValue;
+
+  struct WeakIValueHasher {
+    size_t operator()(const WeakIValue& t) const {
+      return t.hash();
+    }
+  };
+
+  struct WeakIValueEq {
+    bool operator()(const WeakIValue& t1, const WeakIValue& t2) const {
+      return t1.isSameIdentity(t2);
+    }
+  };
+
+  using Frame =
+      std::unordered_map<WeakIValue, Value*, WeakIValueHasher, WeakIValueEq>;
+  std::vector<Frame> env_stack;
+};
+
+// This is meant to be used as a thread local place, where we can store extra
+// info that gets lost when we call into ATen from Python bindings. One example
+// for when this happens is when we get an IntArrayRef argument with e.g. sizes
+// for view. When tracing, those might be tensors, which let us encode extra
+// data dependencies, but once they get to the ATen call where we actually have
+// the tracing logic, they get converted into a raw IntArrayRef, and we loose
+// all information. To prevent this, we temporarily stash it in here.
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct ArgumentStash {
+  struct IntArrayRefTrace : std::vector<Value*> {
+    IntArrayRefTrace(int size) : std::vector<Value*>(size, nullptr) {}
+  };
+
+  static bool empty() {
+    return stash.intlists.empty();
+  }
+
+  TORCH_API static void stashIntArrayRefElem(
+      const std::string& arg_name,
+      size_t size,
+      size_t idx,
+      const Variable& var);
+
+  static bool hasIntArrayRef(const std::string& arg_name) {
+    return stash.intlists.count(arg_name) > 0;
+  }
+
+  static IntArrayRefTrace popIntArrayRef(const std::string& arg_name) {
+    auto info = std::move(stash.intlists.at(arg_name));
+    stash.intlists.erase(arg_name);
+    return info;
+  }
+
+  // Value stashing: Use these methods to stash arguments which correspond
+  // to regular Value*'s in the graph. i.e. they don't require special
+  // handling like in the case of IntArrayRefs
+  TORCH_API static void stashValue(
+      const std::string& arg_name,
+      size_t idx,
+      const Variable& var,
+      const c10::TypePtr& type = nullptr);
+
+  static bool hasValue(const std::string& arg_name) {
+    return stash.values.count(arg_name) > 0;
+  }
+
+  static Value* popValue(const std::string& arg_name) {
+    auto info = stash.values.at(arg_name);
+    stash.values.erase(arg_name);
+    return info;
+  }
+
+ private:
+  static thread_local ArgumentStash stash;
+  std::unordered_map<std::string, IntArrayRefTrace> intlists;
+  std::unordered_map<std::string, Value*> values;
+};
+
+// Retrieve or set the current tracing state. Returns a nullptr if tracing is
+// disabled.
+TORCH_API const std::shared_ptr<TracingState>& getTracingState();
+TORCH_API void setTracingState(std::shared_ptr<TracingState> state);
+
+inline bool isTracing() {
+  return static_cast<bool>(getTracingState());
+}
+
+using warn_fn_type = void (*)(const std::string& msg);
+TORCH_API extern const char* WARN_PYTHON_DATAFLOW;
+TORCH_API extern const char* WARN_CONSTRUCTOR;
+TORCH_API extern const char* WARN_RESIZE;
+TORCH_API extern const char* STRICT_TRACER_MSG;
+TORCH_API void _do_warn(const char* _reason, const char* _kind);
+inline void warn(const char* _reason, const char* _kind = nullptr) {
+  if (const auto& state = getTracingState()) {
+    if (!state->warn)
+      return;
+    _do_warn(_reason, _kind);
+  }
+}
+TORCH_API void setWarn(warn_fn_type fn);
+
+struct TORCH_API NoWarn {
+  NoWarn() : state(getTracingState()) {
+    if (state) {
+      prev = state->warn;
+      state->warn = false;
+    }
+  }
+  ~NoWarn() {
+    if (state) {
+      state->warn = prev;
+    }
+  }
+  std::shared_ptr<TracingState> state;
+  bool prev{false};
+};
+
+struct WithNestedTracingFrame {
+  WithNestedTracingFrame() {
+    getTracingState()->enterFrame();
+  }
+
+  ~WithNestedTracingFrame() {
+    getTracingState()->leaveFrame();
+  }
+};
+TORCH_API void recordSourceLocation(Node* n);
+TORCH_API void setRecordSourceLocation(void (*v)(Node*));
+
+TORCH_API std::vector<StackEntry> pythonCallstack();
+TORCH_API void setPythonCallstack(std::vector<StackEntry> (*v)());
+
+// Having finished adding a new 'node' to the graph IR 'setValueTrace'
+// associates this node with an output variable, so that further operations
+// involving this variable know which node in the IR to reference.
+TORCH_API void setValueTrace(const IValue& v, Value* value);
+
+TORCH_API void delValueTrace(const IValue& var);
+
+TORCH_API std::function<void()> pauseTracing();
+
+TORCH_API Value* getValueTrace(const IValue& var);
+
+TORCH_API std::pair<std::shared_ptr<TracingState>, Stack> trace(
+    Stack inputs,
+    const std::function<Stack(Stack)>& traced_fn,
+    std::function<std::string(const Variable&)> var_name_lookup_fn,
+    bool strict = true,
+    bool force_outplace = false,
+    Module* self = nullptr,
+    const std::vector<std::string>& argument_names = {});
+
+TORCH_API void abandon();
+
+// NB: those serve both as an intermediate steps in addInputs below,
+// as well as the overloads that terminate template recursion
+TORCH_API void addInputs(Node* n, const char* name, int64_t value);
+TORCH_API void addInputs(Node* n, const char* name, c10::SymInt value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<int64_t> value);
+TORCH_API void addInputs(Node* n, const char* name, bool value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<bool>& value);
+TORCH_API void addInputs(Node* n, const char* name, double value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<double>& value);
+TORCH_API void addInputs(Node* n, const char* name, const at::Scalar& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Scalar>& value);
+TORCH_API void addInputs(Node* n, const char* name, const at::Tensor& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Tensor>& value);
+TORCH_API void addInputs(Node* n, const char* name, ArrayRef<int64_t> value);
+TORCH_API void addInputs(Node* n, const char* name, c10::SymIntArrayRef value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<c10::SymInt> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<ArrayRef<int64_t>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const at::OptionalIntArrayRef& opt_value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const at::OptionalSymIntArrayRef& opt_value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    ArrayRef<at::Tensor> value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    std::vector<at::Tensor> value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    at::ITensorListRef value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const List<c10::optional<at::Tensor>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    ArrayRef<c10::intrusive_ptr<c10::ivalue::Object>> value,
+    const c10::ClassTypePtr& class_type);
+TORCH_API void addInputs(Node* n, const char* name, ArrayRef<double> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<ArrayRef<double>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::string_view value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<c10::string_view>& value);
+TORCH_API void addInputs(Node* n, const char* name, at::Device value);
+TORCH_API void addInputs(Node* n, const char* name, c10::Stream stream);
+TORCH_API void addInputs(Node* n, const char* name, at::Layout value);
+TORCH_API void addInputs(Node* n, const char* name, at::ScalarType value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::ScalarType>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Device>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Layout>& value);
+TORCH_API void addInputs(Node* n, const char* name, at::MemoryFormat value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<at::DimnameList> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::MemoryFormat>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Generator>& value);
+
+inline void addInputs(
+    Node* n,
+    const char* name,
+    const std::vector<bool>& value) {
+  AT_ERROR("Tracing a list of bool type is currently not supported!");
+}
+
+template <typename T>
+void addInputs(Node* n, const char* name, ArrayRef<T> value) {
+  AT_ERROR("Tracing a list of arbitrary type is currently not supported!");
+}
+template <typename K, typename V>
+void addInputs(
+    Node* n,
+    const char* name,
+    const std::unordered_map<K, V>& value) {
+  AT_ERROR("Tracing a dict of arbitrary types is currently not supported!");
+}
+
+template <size_t N>
+void addInputs(Node* n, const char* name, std::array<bool, N> value) {
+  throw std::runtime_error(
+      "Found an unsupported argument type in the JIT tracer. File a bug report.");
+}
+
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::intrusive_ptr<c10::ivalue::Object>& obj);
+
+TORCH_API void ensureUniqueIfOutOfPlaced(
+    const char* name,
+    const at::Tensor& tensor);
+TORCH_API void ensureUniqueIfOutOfPlaced(
+    const char* name,
+    const c10::optional<at::Tensor>& tensor);
+
+template <
+    typename T,
+    typename = torch::enable_if_t<
+        (!std::is_convertible_v<torch::decay_t<T>, at::TensorList> &&
+         !std::is_convertible_v<torch::decay_t<T>, c10::List<at::Tensor>> &&
+         !std::is_convertible_v<torch::decay_t<T>, at::Tensor> &&
+         !std::is_convertible_v<
+             torch::decay_t<T>,
+             c10::intrusive_ptr<c10::ivalue::Object>>)>>
+void addOutput(Node* node, T&&) {
+  AT_ERROR(
+      "Found an unsupported argument type ",
+      c10::demangle_type<T>(),
+      " in the JIT tracer. File a bug report.");
+}
+TORCH_API void addOutput(Node* node, const at::Tensor& tensor);
+TORCH_API void setOutput(Value* value, const at::Tensor& output);
+TORCH_API void addOutput(Node* node, const std::vector<at::Tensor>& list);
+TORCH_API void addOutput(Node* node, const c10::List<at::Tensor>& list);
+TORCH_API void addOutput(
+    Node* node,
+    const c10::intrusive_ptr<c10::ivalue::Object>& output);
+
+TORCH_API autograd::Variable getSizeOf(
+    const autograd::Variable& var,
+    int64_t dim);
+
+TORCH_API autograd::Variable getNumelOf(const autograd::Variable& var);
+
+} // namespace tracer
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/tree_views.h

@@ -0,0 +1,1275 @@
+#pragma once
+#include <c10/util/string_utils.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/strtod.h>
+#include <torch/csrc/jit/frontend/tree.h>
+
+#include <c10/util/complex.h>
+#include <functional>
+#include <iostream>
+#include <string>
+#include <utility>
+
+namespace torch {
+namespace jit {
+
+// clang-format off
+// TreeView provides a statically-typed way to traverse the tree, which should
+// be formed according to the grammar below.
+//
+// A few notes on types and their aliases:
+// - List<T> is really a Tree with kind TK_LIST and elements as subtrees
+// - Maybe<T> is really a Tree with kind TK_OPTION that has 0 or 1 subtree of type T
+// - Builtin types are: Ident (TK_IDENT), String (TK_STRING)
+//
+// Param = Param(Maybe<Expr> type, Ident name)                          TK_PARAM
+//
+// Decl  = Decl(List<Param> params, Maybe<Expr> return_type)            TK_DECL
+// Def   = Def(Ident name, Decl decl, List<Stmt> body)                  TK_DEF
+// ClassDef = ClassDef(Ident name,                                      TK_CLASS_DEF
+//                     Maybe<Expr> superclass,
+//                     List<Stmt> body)
+//
+// Stmt  = If(Expr cond, List<Stmt> true_body, List<Stmt> false_body)   TK_IF
+//       | For(List<Expr> targets, List<Expr> iters, List<Stmt> body)   TK_FOR
+//       | While(Expr cond, List<Stmt> body)                            TK_WHILE
+//       | Global(List<Ident> idents)                                   TK_GLOBAL
+//       -- NB: the only type of Expr's allowed on lhs are Var
+//          Or a tuple containing Var with an optional terminating Starred
+//       | Assign(Expr lhs, Maybe<Expr> rhs, Maybe<Expr> type)          TK_ASSIGN
+//       | AugAssign(Expr lhs, AugAssignKind aug_op, Expr rhs)          TK_AUG_ASSIGN
+//       | Return(List<Expr> values)                                    TK_RETURN
+//       | ExprStmt(List<Expr> expr)                                    TK_EXPR_STMT
+//       | Raise(Expr expr)                                             TK_RAISE
+//       | Def                                                          TK_DEF
+//       | With(List<WithItem> targets, List<Stmt> body)                TK_WITH
+//
+// Expr  = TernaryIf(Expr cond, Expr true_expr, Expr false_expr)        TK_IF_EXPR
+//       | BinOp(Expr lhs, Expr rhs)
+//       |     And                                                      TK_AND
+//       |     Or                                                       TK_OR
+//       |     Lt                                                       '<'
+//       |     Gt                                                       '>'
+//       |     Eq                                                       TK_EQ
+//       |     Le                                                       TK_LE
+//       |     Ge                                                       TK_GE
+//       |     Ne                                                       TK_NE
+//       |     Is                                                       TK_IS
+//       |     IsNot                                                    TK_ISNOT
+//       |     Add                                                      '+'
+//       |     Sub                                                      '-'
+//       |     Mul                                                      '*'
+//       |     Div                                                      '/'
+//       |     Mod                                                      '%'
+//       |     MatMult                                                  '@'
+//       |     Pow                                                      TK_POW
+//       | UnaryOp(Expr expr)
+//       |     Not                                                      TK_NOT
+//       |     USub                                                     '-'
+//       | Const(String value)                                          TK_CONST
+//       -- NB: x.name(y) is desugared into name(x, y)
+//       | Apply(Ident name, List<Expr> args, List<Attribute> kwargs)   TK_APPLY
+//       | Select(Expr value, Ident selector)                           '.'
+//       | Subscript(Expr value, List<Expr> subscript_exprs)            TK_SUBSCRIPT
+//       | SliceExpr(Maybe<Expr> start, Maybe<Expr> end)                TK_SLICE_EXPR
+//       | Var(Ident name)                                              TK_VAR
+//       | ListLiteral(List<Expr> inputs)                               TK_LIST_LITERAL
+//       | TupleLiteral(List<Expr> inputs)                              TK_TUPLE_LITERAL
+//       | Starred(Expr expr)                                           TK_STARRED
+//       | WithItem(Expr target, Maybe<Var> var)                        TK_WITH_ITEM
+// -- NB: only allowed expressions are Const or List(Const)
+//        (List as a value, not type constructor)
+// Attribute = Attribute(Ident name, Expr value)                        TK_ATTRIBUTE
+//
+// AugAssignKind =
+//            | Add()                                                   TK_PLUS_EQ
+//            | Sub()                                                   TK_MINUS_EQ
+//            | Mul()                                                   TK_TIMES_EQ
+//            | Div()                                                   TK_DIV_EQ
+//            | Mod()                                                   TK_MOD_EQ
+//
+
+// Each subclass of TreeView should provide:
+// 1. Constructor that takes a TreeRef, and checks that it's of the right type.
+// 2. Accessors that get underlying information out of the object. If they
+//    return subtrees, they should wrap them in appropriate views too.
+// 3. Static method 'create' that creates the underlying TreeRef object
+//    for every TreeRef kind that has a TreeView, the parser always uses
+//    (e.g.) Ident::create rather than Compound::Create, this means that
+//    changes to the structure of Ident are always made right here rather
+//    than both in the parser and in this code.
+// XXX: these structs should have no fields to prevent slicing when passing by value
+// clang-format on
+struct TreeView {
+  explicit TreeView(TreeRef tree) : tree_(std::move(tree)) {}
+  TreeRef tree() const {
+    return tree_;
+  }
+  const SourceRange& range() const {
+    return tree_->range();
+  }
+  operator TreeRef() const {
+    return tree_;
+  }
+  const TreeRef& get() const {
+    return tree_;
+  }
+  int kind() const {
+    return tree_->kind();
+  }
+  void dump() const {
+    std::cout << tree_;
+  }
+
+ protected:
+  const TreeRef& subtree(size_t i) const {
+    return tree_->trees().at(i);
+  }
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  TreeRef tree_;
+};
+
+template <typename T>
+struct ListIterator {
+  ListIterator(TreeList::const_iterator it) : it(it) {}
+  bool operator!=(const ListIterator& rhs) const {
+    return it != rhs.it;
+  }
+  bool operator==(const ListIterator& rhs) const {
+    return it == rhs.it;
+  }
+  T operator*() const {
+    return T(*it);
+  }
+  ListIterator& operator+=(std::ptrdiff_t n) {
+    it += n;
+    return *this;
+  }
+  ListIterator& operator++() {
+    ++it;
+    return *this;
+  }
+  ListIterator& operator--() {
+    --it;
+    return *this;
+  }
+
+ private:
+  TreeList::const_iterator it;
+};
+
+template <typename T>
+struct List : public TreeView {
+  using iterator = ListIterator<T>;
+  using const_iterator = ListIterator<T>;
+
+  List(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_LIST);
+    // Iterate over list to temporarily instantiate Ts that will check the type
+    for (const T& elem : *this) {
+      (void)elem; // silence unused warning
+    }
+  }
+  iterator begin() const {
+    return iterator(tree_->trees().begin());
+  }
+  iterator end() const {
+    return iterator(tree_->trees().end());
+  }
+  bool empty() const {
+    return tree_->trees().begin() == tree_->trees().end();
+  }
+  T operator[](size_t i) const {
+    return T(subtree(i));
+  }
+  TreeRef map(const std::function<TreeRef(const T&)>& fn) {
+    return tree_->map([&](TreeRef v) { return fn(T(v)); });
+  }
+  static List create(const SourceRange& range, const std::vector<T>& subtrees) {
+    TreeList type_erased_sub{subtrees.begin(), subtrees.end()};
+    return List(Compound::create(TK_LIST, range, std::move(type_erased_sub)));
+  }
+  static List unsafeCreate(const SourceRange& range, TreeList&& subtrees) {
+    return List(Compound::create(TK_LIST, range, std::move(subtrees)));
+  }
+  size_t size() const {
+    return tree_->trees().size();
+  }
+};
+
+template <typename T>
+struct Maybe : public TreeView {
+  explicit Maybe(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_OPTION);
+    if (tree_->trees().size() > 1)
+      throw ErrorReport(tree) << "Maybe trees can have at most one subtree";
+  }
+  /* implicit */ Maybe(const T& tree) : TreeView(tree) {}
+  bool present() const {
+    return tree_->trees().size() > 0;
+  }
+  T get() const {
+    return T(tree_->trees().at(0));
+  }
+  TreeRef map(const std::function<TreeRef(const T&)>& fn) {
+    return tree_->map([&](TreeRef v) { return fn(T(v)); });
+  }
+  static Maybe<T> create(const SourceRange& range) {
+    return Maybe<T>(Compound::create(TK_OPTION, range, {}));
+  }
+  static Maybe<T> create(const SourceRange& range, const T& value) {
+    return Maybe<T>(Compound::create(TK_OPTION, range, {value}));
+  }
+};
+
+struct Ident : public TreeView {
+  explicit Ident(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_IDENT);
+  }
+  const std::string& name() const {
+    return subtree(0)->stringValue();
+  }
+  static Ident create(const SourceRange& range, std::string name) {
+    return Ident(
+        Compound::create(TK_IDENT, range, {String::create(std::move(name))}));
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Base types (production LHS)
+////////////////////////////////////////////////////////////////////////////////
+
+struct Stmt : public TreeView {
+  explicit Stmt(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case TK_IF:
+      case TK_FOR:
+      case TK_WHILE:
+      case TK_GLOBAL:
+      case TK_ASSIGN:
+      case TK_AUG_ASSIGN:
+      case TK_RETURN:
+      case TK_EXPR_STMT:
+      case TK_RAISE:
+      case TK_ASSERT:
+      case TK_PASS:
+      case TK_BREAK:
+      case TK_DELETE:
+      case TK_CONTINUE:
+      case TK_DEF:
+      case TK_WITH:
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid Stmt";
+    }
+  }
+};
+
+struct Expr : public TreeView {
+  explicit Expr(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case TK_IF_EXPR:
+      case TK_AND:
+      case TK_OR:
+      case '<':
+      case '>':
+      case TK_IS:
+      case TK_ISNOT:
+      case TK_EQ:
+      case TK_LE:
+      case TK_GE:
+      case TK_NE:
+      case '+':
+      case '-':
+      case TK_UNARY_MINUS:
+      case '~':
+      case '*':
+      case TK_STARRED:
+      case '/':
+      case '%':
+      case TK_NOT:
+      case TK_CONST:
+      case TK_STRINGLITERAL:
+      case TK_TRUE:
+      case TK_FALSE:
+      case TK_NONE:
+      case TK_NONE_TYPE:
+      case TK_CAST:
+      case TK_APPLY:
+      case '.':
+      case TK_SUBSCRIPT:
+      case TK_SLICE_EXPR:
+      case TK_VAR:
+      case TK_LIST_LITERAL:
+      case TK_TUPLE_LITERAL:
+      case TK_DICT_LITERAL:
+      case '@':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+      case TK_FLOOR_DIV:
+      case '&':
+      case '^':
+      case '|':
+      case TK_LIST_COMP:
+      case TK_DICT_COMP:
+      case TK_DOTS:
+      case TK_IN:
+      case TK_WITH_ITEM:
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid Expr";
+    }
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Helper nodes (mostly for function arguments)
+////////////////////////////////////////////////////////////////////////////////
+
+struct Attribute : public TreeView {
+  explicit Attribute(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_ATTRIBUTE);
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Expr value() const {
+    return Expr(subtree(1));
+  }
+  static Attribute create(
+      const SourceRange& range,
+      const Ident& name,
+      const TreeRef& value) {
+    return Attribute(Compound::create(TK_ATTRIBUTE, range, {name, value}));
+  }
+};
+
+struct Param : public TreeView {
+  explicit Param(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_PARAM);
+  }
+  static Param create(
+      const SourceRange& range,
+      const Ident& ident,
+      const Maybe<Expr>& type,
+      const Maybe<Expr>& def,
+      bool kwarg_only) {
+    TreeRef kwarg_only_tree =
+        Compound::create(kwarg_only ? TK_TRUE : TK_FALSE, range, {});
+    return Param(Compound::create(
+        TK_PARAM, range, {ident, type, def, std::move(kwarg_only_tree)}));
+  }
+  Ident ident() const {
+    return Ident(subtree(0));
+  }
+  Maybe<Expr> type() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  Maybe<Expr> defaultValue() const {
+    return Maybe<Expr>(subtree(2));
+  }
+  bool kwarg_only() const {
+    return TK_TRUE == subtree(3)->kind();
+  }
+  Param withType(const Maybe<Expr>& typ) const {
+    return Param::create(range(), ident(), typ, defaultValue(), kwarg_only());
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Top level definitions
+////////////////////////////////////////////////////////////////////////////////
+
+struct Decl : public TreeView {
+  explicit Decl(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_DECL);
+  }
+  List<Param> params() const {
+    return List<Param>(subtree(0));
+  }
+  Maybe<Expr> return_type() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  static Decl create(
+      const SourceRange& range,
+      const List<Param>& params,
+      const Maybe<Expr>& return_type) {
+    return Decl(Compound::create(TK_DECL, range, {params, return_type}));
+  }
+};
+
+struct Def : public TreeView {
+  explicit Def(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_DEF);
+  }
+  Def withName(std::string new_name) const {
+    auto new_ident = Ident::create(name().range(), std::move(new_name));
+    return create(range(), new_ident, decl(), statements());
+  }
+  Def withDecl(const Decl& decl) const {
+    return create(range(), name(), decl, statements());
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Decl decl() const {
+    return Decl(subtree(1));
+  }
+  List<Stmt> statements() const {
+    return List<Stmt>(subtree(2));
+  }
+  static Def create(
+      const SourceRange& range,
+      const Ident& name,
+      const Decl& decl,
+      const List<Stmt>& stmts) {
+    return Def(Compound::create(TK_DEF, range, {name, decl, stmts}));
+  }
+};
+
+// Property represents a named attribute combined with a getter and setter
+// method to access and mutate that attribute.
+struct Property : public TreeView {
+  explicit Property(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_PROP);
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Def getter() const {
+    return Def(subtree(1));
+  }
+  Maybe<Def> setter() const {
+    return Maybe<Def>(subtree(2));
+  }
+  static Property create(
+      const SourceRange& range,
+      const Ident& name,
+      const Def& getter,
+      const Maybe<Def>& setter) {
+    return Property(Compound::create(TK_PROP, range, {name, getter, setter}));
+  }
+};
+
+struct Assign;
+
+struct ClassDef : public TreeView {
+  explicit ClassDef(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_CLASS_DEF);
+  }
+  explicit ClassDef(TreeRef&& tree) : TreeView(std::move(tree)) {
+    tree_->match(TK_CLASS_DEF);
+  }
+  ClassDef withName(std::string new_name) const {
+    auto new_ident = Ident::create(name().range(), std::move(new_name));
+    return create(range(), new_ident, superclass(), body());
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Maybe<Expr> superclass() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(2));
+  }
+  Maybe<List<Property>> properties() const {
+    return Maybe<List<Property>>(subtree(3));
+  }
+  Maybe<List<Assign>> assigns() const {
+    return Maybe<List<Assign>>(subtree(4));
+  }
+  static ClassDef create(
+      const SourceRange& range,
+      const Ident& name,
+      const Maybe<Expr>& superclass,
+      const List<Stmt>& body) {
+    return ClassDef(Compound::create(
+        TK_CLASS_DEF,
+        range,
+        {name,
+         superclass,
+         body,
+         Maybe<List<Property>>::create(range),
+         Maybe<List<Assign>>::create(range)}));
+  }
+  static ClassDef create(
+      const SourceRange& range,
+      const Ident& name,
+      const Maybe<Expr>& superclass,
+      const List<Stmt>& body,
+      const List<Property>& properties,
+      const List<Assign>& assigns);
+};
+
+TORCH_API std::vector<std::string> getUnresolvedClassAttributes(
+    const ClassDef& def);
+
+////////////////////////////////////////////////////////////////////////////////
+// Statements
+////////////////////////////////////////////////////////////////////////////////
+
+struct If : public Stmt {
+  explicit If(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_IF);
+  }
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  List<Stmt> trueBranch() const {
+    return List<Stmt>(subtree(1));
+  }
+  List<Stmt> falseBranch() const {
+    return List<Stmt>(subtree(2));
+  }
+  If withNewBranches(
+      const List<Stmt>& true_branch,
+      const List<Stmt>& false_branch) const {
+    return create(range(), cond(), true_branch, false_branch);
+  }
+  static If create(
+      const SourceRange& range,
+      const Expr& cond,
+      const List<Stmt>& true_branch,
+      const List<Stmt>& false_branch) {
+    return If(
+        Compound::create(TK_IF, range, {cond, true_branch, false_branch}));
+  }
+};
+
+struct While : public Stmt {
+  explicit While(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_WHILE);
+  }
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(1));
+  }
+  static While create(
+      const SourceRange& range,
+      const Expr& cond,
+      const List<Stmt>& body) {
+    return While(Compound::create(TK_WHILE, range, {cond, body}));
+  }
+};
+
+struct For : public Stmt {
+  explicit For(const TreeRef& tree) : Stmt(tree) {
+    tree->match(TK_FOR);
+  }
+  List<Expr> targets() const {
+    return List<Expr>(subtree(0));
+  }
+  List<Expr> itrs() const {
+    return List<Expr>(subtree(1));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(2));
+  }
+  static For create(
+      const SourceRange& range,
+      const List<Expr>& targets,
+      const List<Expr>& itrs,
+      const List<Stmt>& body) {
+    return For(Compound::create(TK_FOR, range, {targets, itrs, body}));
+  }
+};
+
+// TODO: supports only single comprehension for now
+struct ListComp : public Expr {
+  explicit ListComp(const TreeRef& tree) : Expr(tree) {
+    tree->match(TK_LIST_COMP);
+  }
+  Expr elt() const {
+    return Expr(subtree(0));
+  }
+  Expr target() const {
+    return Expr(subtree(1));
+  }
+  Expr iter() const {
+    return Expr(subtree(2));
+  }
+  // TODO: no ifs for now
+  static ListComp create(
+      const SourceRange& range,
+      const Expr& elt,
+      const Expr& target,
+      const Expr& iter) {
+    return ListComp(Compound::create(TK_LIST_COMP, range, {elt, target, iter}));
+  }
+};
+
+// TODO: supports only single comprehension for now
+struct DictComp : public Expr {
+  explicit DictComp(const TreeRef& tree) : Expr(tree) {
+    tree->match(TK_DICT_COMP);
+  }
+  Expr key() const {
+    return Expr(subtree(0));
+  }
+  Expr value() const {
+    return Expr(subtree(1));
+  }
+  Expr target() const {
+    return Expr(subtree(2));
+  }
+  Expr iter() const {
+    return Expr(subtree(3));
+  }
+  // TODO: no ifs for now
+  static DictComp create(
+      const SourceRange& range,
+      const Expr& key,
+      const Expr& value,
+      const Expr& target,
+      const Expr& iter) {
+    return DictComp(
+        Compound::create(TK_DICT_COMP, range, {key, value, target, iter}));
+  }
+};
+
+struct Global : public Stmt {
+  explicit Global(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_GLOBAL);
+  }
+  List<Ident> names() {
+    return List<Ident>(subtree(0));
+  }
+  static Global create(const SourceRange& range, const List<Ident>& names) {
+    return Global(Compound::create(TK_GLOBAL, range, {names}));
+  }
+};
+
+struct AugAssignKind : public TreeView {
+  explicit AugAssignKind(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case '+':
+      case '-':
+      case '*':
+      case '/':
+      case '%':
+      case '|':
+      case '&':
+      case '^':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+        return;
+      default:
+        throw ErrorReport(tree) << "is not a valid AugAssignKind";
+    }
+  }
+};
+
+// Augmented assignment, like "foo += bar"
+struct AugAssign : public Stmt {
+  explicit AugAssign(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_AUG_ASSIGN);
+  }
+  static AugAssign create(
+      const SourceRange& range,
+      const Expr& lhs,
+      const AugAssignKind& aug_op,
+      const Expr& rhs) {
+    return AugAssign(
+        Compound::create(TK_AUG_ASSIGN, range, {lhs, aug_op, rhs}));
+  }
+  Expr lhs() const {
+    return Expr(subtree(0));
+  }
+  int aug_op() const {
+    return subtree(1)->kind();
+  }
+  Expr rhs() const {
+    return Expr(subtree(2));
+  }
+};
+
+struct Assign : public Stmt {
+  explicit Assign(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_ASSIGN);
+  }
+  static Assign create(
+      const SourceRange& range,
+      const List<Expr>& lhs,
+      const Maybe<Expr>& rhs,
+      const Maybe<Expr>& type) {
+    return Assign(Compound::create(TK_ASSIGN, range, {lhs, rhs, type}));
+  }
+
+  List<Expr> lhs_list() const {
+    return List<Expr>(subtree(0));
+  }
+
+  Expr lhs() const {
+    const auto& li = lhs_list();
+    TORCH_INTERNAL_ASSERT(li.size() == 1);
+    return *li.begin();
+  }
+
+  Maybe<Expr> rhs() const {
+    return Maybe<Expr>(subtree(1));
+  }
+
+  Maybe<Expr> type() const {
+    return Maybe<Expr>(subtree(2));
+  }
+};
+
+struct Return : public Stmt {
+  explicit Return(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_RETURN);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Return create(const SourceRange& range, const Expr& value) {
+    return Return(Compound::create(TK_RETURN, range, {value}));
+  }
+};
+
+struct Raise : public Stmt {
+  explicit Raise(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_RAISE);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Raise create(const SourceRange& range, const Expr& expr) {
+    return Raise(Compound::create(TK_RAISE, range, {expr}));
+  }
+};
+
+struct Assert : public Stmt {
+  explicit Assert(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_ASSERT);
+  }
+  Expr test() const {
+    return Expr(subtree(0));
+  }
+  Maybe<Expr> msg() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  static Assert create(
+      const SourceRange& range,
+      const Expr& test,
+      const Maybe<Expr>& msg) {
+    return Assert(Compound::create(TK_ASSERT, range, {test, msg}));
+  }
+};
+
+struct Pass : public Stmt {
+  explicit Pass(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_PASS);
+  }
+  static Pass create(const SourceRange& range) {
+    return Pass(Compound::create(TK_PASS, range, {}));
+  }
+};
+
+struct Dots : public Expr {
+  explicit Dots(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_DOTS);
+  }
+  static Dots create(const SourceRange& range) {
+    return Dots(Compound::create(TK_DOTS, range, {}));
+  }
+};
+
+struct Break : public Stmt {
+  explicit Break(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_BREAK);
+  }
+  static Break create(const SourceRange& range) {
+    return Break(Compound::create(TK_BREAK, range, {}));
+  }
+};
+
+struct Continue : public Stmt {
+  explicit Continue(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_CONTINUE);
+  }
+  static Continue create(const SourceRange& range) {
+    return Continue(Compound::create(TK_CONTINUE, range, {}));
+  }
+};
+
+struct ExprStmt : public Stmt {
+  explicit ExprStmt(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_EXPR_STMT);
+  }
+  Expr expr() {
+    return Expr(subtree(0));
+  }
+  static ExprStmt create(const SourceRange& range, const Expr& list) {
+    return ExprStmt(Compound::create(TK_EXPR_STMT, range, {list}));
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Expressions
+////////////////////////////////////////////////////////////////////////////////
+
+struct BinOp : public Expr {
+  explicit BinOp(const TreeRef& tree) : Expr(tree) {
+    switch (tree->kind()) {
+      case TK_AND:
+      case TK_OR:
+      case '<':
+      case '>':
+      case TK_IS:
+      case TK_ISNOT:
+      case TK_EQ:
+      case TK_LE:
+      case TK_GE:
+      case TK_NE:
+      case '+':
+      case '*':
+      case '/':
+      case '-':
+      case '@':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+      case '%':
+      case '&':
+      case '^':
+      case '|':
+      case TK_FLOOR_DIV:
+      case TK_IN:
+        if (tree->trees().size() != 2)
+          throw ErrorReport(tree)
+              << "BinOp expected 2 subtrees, found " << tree->trees().size();
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid BinOp";
+    }
+  }
+  Expr lhs() const {
+    return Expr(subtree(0));
+  }
+  Expr rhs() const {
+    return Expr(subtree(1));
+  }
+  static BinOp create(
+      const SourceRange& range,
+      int kind,
+      const Expr& lhs,
+      const Expr& rhs) {
+    return BinOp(Compound::create(kind, range, {lhs, rhs}));
+  }
+};
+
+struct UnaryOp : public Expr {
+  explicit UnaryOp(const TreeRef& tree) : Expr(tree) {
+    switch (tree->kind()) {
+      case TK_UNARY_MINUS:
+      case '~':
+      case TK_NOT:
+        if (tree->trees().size() != 1)
+          throw ErrorReport(tree)
+              << "UnaryOp expected 1 subtree, found " << tree->trees().size();
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid UnaryOp";
+    }
+  }
+  static UnaryOp create(const SourceRange& range, int kind, const Expr& expr) {
+    return UnaryOp(Compound::create(kind, range, {expr}));
+  }
+};
+
+struct Const : public Expr {
+  explicit Const(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_CONST, 1);
+  }
+  bool isFloatingPoint() const {
+    if (isComplex())
+      return false;
+
+    bool is_inf = subtree(0)->stringValue() == "inf";
+    return is_inf ||
+        subtree(0)->stringValue().find_first_of(".eE") != std::string::npos;
+  }
+  bool isIntegral() const {
+    return !isFloatingPoint() && !isComplex();
+  }
+  bool isComplex() const {
+    return subtree(0)->stringValue().find_first_of('j') != std::string::npos;
+  }
+  int64_t asIntegral() const {
+    try {
+      // NOLINTNEXTLINE(modernize-use-nullptr)
+      return std::stoll(subtree(0)->stringValue(), /*__idx=*/0, /*base=*/0);
+    } catch (const std::out_of_range&) {
+      throw ErrorReport(range()) << "Integral constant out of range "
+                                    "(must fit in a signed 64 bit integer)";
+    }
+  }
+  double asFloatingPoint() const {
+    // We can't pass in nullptr as the dummy pointer gets dereferenced for
+    // Android version of strtod_c().
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    char* dummy;
+    return torch::jit::strtod_c(subtree(0)->stringValue().c_str(), &dummy);
+  }
+  c10::complex<double> asComplex() const {
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    char* dummy;
+    auto str = subtree(0)->stringValue();
+    // Complex numbers (a+bj, where a is non-zero) are parsed as an addition
+    // between float/int a and a complex number "bj". When a is 0, a complex
+    // number bj is created as above. So, while parsing the string, we don't
+    // have to worry about the real component of the complex number.
+    auto imag =
+        torch::jit::strtod_c(str.substr(0, str.size() - 1).c_str(), &dummy);
+    return c10::complex<double>(0, imag);
+  }
+  const std::string& text() const {
+    return subtree(0)->stringValue();
+  }
+  static Const create(const SourceRange& range, const std::string& value) {
+    return Const(Compound::create(TK_CONST, range, {String::create(value)}));
+  }
+};
+
+struct StringLiteral : public Expr {
+  explicit StringLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_STRINGLITERAL, 1);
+  }
+  const std::string& text() const {
+    return subtree(0)->stringValue();
+  }
+  static StringLiteral create(
+      const SourceRange& range,
+      const std::string& value) {
+    return StringLiteral(
+        Compound::create(TK_STRINGLITERAL, range, {String::create(value)}));
+  }
+};
+
+struct Apply : public Expr {
+  explicit Apply(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_APPLY);
+  }
+  Expr callee() const {
+    return Expr(subtree(0));
+  }
+  List<Expr> inputs() const {
+    return List<Expr>(subtree(1));
+  }
+  List<Attribute> attributes() const {
+    return List<Attribute>(subtree(2));
+  }
+  static Apply create(
+      const SourceRange& range,
+      const Expr& callee,
+      const List<Expr>& inputs,
+      const List<Attribute>& attributes) {
+    return Apply(
+        Compound::create(TK_APPLY, range, {callee, inputs, attributes}));
+  }
+};
+
+struct Select : public Expr {
+  explicit Select(const TreeRef& tree) : Expr(tree) {
+    tree_->match('.');
+  }
+  Expr value() const {
+    return Expr(subtree(0));
+  }
+  Ident selector() const {
+    return Ident(subtree(1));
+  }
+  static Select create(
+      const SourceRange& range,
+      const Expr& value,
+      const Ident& selector) {
+    return Select(Compound::create('.', range, {value, selector}));
+  }
+};
+
+struct SliceExpr : public Expr {
+  explicit SliceExpr(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_SLICE_EXPR);
+  }
+  Maybe<Expr> start() const {
+    return Maybe<Expr>(subtree(0));
+  }
+  Maybe<Expr> end() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  Maybe<Expr> step() const {
+    return Maybe<Expr>(subtree(2));
+  }
+  Expr startOr(int64_t alternative) const {
+    const auto startOption = start();
+    return startOption.present() ? startOption.get() : createInt(alternative);
+  }
+  Expr endOr(int64_t alternative) const {
+    const auto endOption = end();
+    return endOption.present() ? endOption.get() : createInt(alternative);
+  }
+  Expr stepOr(int64_t alternative) const {
+    const auto stepOption = step();
+    return stepOption.present() ? stepOption.get() : createInt(alternative);
+  }
+  static SliceExpr create(
+      const SourceRange& range,
+      const Maybe<Expr>& start,
+      const Maybe<Expr>& end,
+      const Maybe<Expr>& step) {
+    return SliceExpr(
+        Compound::create(TK_SLICE_EXPR, range, {start, end, step}));
+  }
+
+ private:
+  Expr createInt(int64_t value) const {
+    return Expr(Const::create(range(), c10::to_string(value)));
+  }
+};
+
+struct Subscript : public Expr {
+  explicit Subscript(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_SUBSCRIPT);
+  }
+  Expr value() const {
+    return Expr(subtree(0));
+  }
+  List<Expr> subscript_exprs() const {
+    return List<Expr>(subtree(1));
+  }
+  static Subscript create(
+      const SourceRange& range,
+      const Expr& value,
+      const List<Expr>& subscript_exprs) {
+    auto whole_range = SourceRange(
+        range.source(), range.start(), subscript_exprs.range().end() + 1);
+    return Subscript(
+        Compound::create(TK_SUBSCRIPT, whole_range, {value, subscript_exprs}));
+  }
+};
+
+struct Var : public Expr {
+  explicit Var(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_VAR);
+  };
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  static Var create(const SourceRange& range, const Ident& name) {
+    return Var(Compound::create(TK_VAR, range, {name}));
+  }
+};
+
+// WithItem represents an item using with a WithStmt.
+struct WithItem : public Expr {
+  explicit WithItem(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_WITH_ITEM);
+  }
+
+  Expr target() const {
+    return Expr(subtree(0));
+  }
+
+  Maybe<Var> var() const {
+    return Maybe<Var>(subtree(1));
+  }
+
+  static WithItem create(
+      const SourceRange& range,
+      const Expr& target,
+      const Maybe<Var>& var) {
+    return WithItem(Compound::create(TK_WITH_ITEM, range, {target, var}));
+  }
+};
+
+// With represents a with statement consisting of a list of with items and a
+// body of statements.
+struct With : public Stmt {
+  explicit With(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_WITH);
+  }
+
+  List<WithItem> targets() const {
+    return List<WithItem>(subtree(0));
+  }
+
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(1));
+  }
+
+  static With create(
+      const SourceRange& range,
+      const List<WithItem>& targets,
+      const List<Stmt>& body) {
+    return With(Compound::create(TK_WITH, range, {targets, body}));
+  }
+};
+
+struct TernaryIf : public Expr {
+  explicit TernaryIf(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_IF_EXPR, 3);
+  };
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  Expr true_expr() const {
+    return Expr(subtree(1));
+  }
+  Expr false_expr() const {
+    return Expr(subtree(2));
+  }
+  static TernaryIf create(
+      const SourceRange& range,
+      const Expr& cond,
+      const Expr& true_expr,
+      const Expr& false_expr) {
+    return TernaryIf(
+        Compound::create(TK_IF_EXPR, range, {cond, true_expr, false_expr}));
+  };
+};
+
+struct ListLiteral : public Expr {
+  explicit ListLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_LIST_LITERAL);
+  }
+  List<Expr> inputs() const {
+    return subtree(0);
+  }
+  static ListLiteral create(
+      const SourceRange& range,
+      const List<Expr>& inputs) {
+    return ListLiteral(Compound::create(TK_LIST_LITERAL, range, {inputs}));
+  }
+};
+
+struct TupleLiteral : public Expr {
+  explicit TupleLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_TUPLE_LITERAL);
+  }
+  List<Expr> inputs() const {
+    return subtree(0);
+  }
+  static TupleLiteral create(
+      const SourceRange& range,
+      const List<Expr>& inputs) {
+    return TupleLiteral(Compound::create(TK_TUPLE_LITERAL, range, {inputs}));
+  }
+};
+
+struct DictLiteral : public Expr {
+  explicit DictLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_DICT_LITERAL);
+  }
+  List<Expr> key_inputs() const {
+    return subtree(0);
+  }
+  List<Expr> value_inputs() const {
+    return subtree(1);
+  }
+  static DictLiteral create(
+      const SourceRange& range,
+      const List<Expr>& keys,
+      const List<Expr>& values) {
+    return DictLiteral(
+        Compound::create(TK_DICT_LITERAL, range, {keys, values}));
+  }
+};
+
+struct Starred : public Expr {
+  explicit Starred(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_STARRED);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Starred create(const SourceRange& range, const Expr& expr) {
+    return Starred(Compound::create(TK_STARRED, range, {expr}));
+  }
+};
+
+struct Delete : public Stmt {
+  explicit Delete(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_DELETE);
+  }
+  List<Expr> targets() const {
+    return subtree(0);
+  }
+  static Delete create(const SourceRange& range, const List<Expr>& targets) {
+    return Delete(Compound::create(TK_DELETE, range, {targets}));
+  }
+};
+
+/*
+ * NOTE: transforming PEP 604 union into equivalent union type
+ *
+ * NOTE: Union[int, float] parses into:
+ * <EXPR> expr:(subscript
+ *  (variable (ident Union))
+ *  (list
+ *    (variable (ident int))
+ *    (variable (ident float))))
+ * <KIND> subscript
+ *
+ * NOTE: (int | float) parses into:
+ * <EXPR> expr:(|
+ *  (variable (ident int))
+ *  (variable (ident float)))
+ * <KIND> |
+ */
+
+inline void _flatten_pep604_union(
+    const torch::jit::Expr& node,
+    std::vector<torch::jit::Expr>* result) {
+  // flatten possibly nested union expressions like (int | (float | str))
+  // into a flat list of expressions like [int, float, str]
+  if (node.kind() == '|') {
+    auto as_binop = torch::jit::BinOp(node);
+    _flatten_pep604_union(as_binop.lhs(), result);
+    _flatten_pep604_union(as_binop.rhs(), result);
+  } else {
+    result->push_back(node);
+  }
+}
+
+inline std::vector<Expr> get_pep604_union_members(const Expr& node) {
+  std::vector<Expr> result;
+  _flatten_pep604_union(node, &result);
+  return result;
+}
+
+// Flattens a PEP 604 union into a classical union.
+// For example, ((x | y) | z) is transformed into Union[x, y, z].
+inline Expr pep604union_to_union(const Expr& expr) {
+  // noop if not a pep604 union
+  if (expr.kind() != '|')
+    return expr;
+
+  // In order to support unions with more than 2 operands ((x|y)|z), we need to
+  // recursively flatten the tree of | expressions.
+  auto members = get_pep604_union_members(expr);
+  auto synthesised_union = Subscript::create(
+      expr.range(),
+      Var::create(expr.range(), Ident::create(expr.range(), "Union")),
+      List<Expr>::create(expr.range(), members));
+  return std::move(synthesised_union);
+}
+
+} // namespace jit
+} // namespace torch
+
+namespace std {
+
+template <typename T>
+struct iterator_traits<torch::jit::ListIterator<T>>
+    : std::iterator_traits<torch::jit::TreeList::const_iterator> {};
+
+} // namespace std

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/constants.h

@@ -0,0 +1,61 @@
+#pragma once
+#include <ATen/core/ivalue.h>
+#include <ATen/core/jit_type.h>
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/jit/ir/scope.h>
+
+// helpers for handling constants in the IR
+// - create constant nodes from ints, floats, complex, intlist, Tensors, and
+// other types
+// - implement primitive constant ops.
+namespace torch {
+namespace jit {
+
+using ::c10::IValue;
+
+struct Graph;
+struct Value;
+
+// thrown when insertConstant cannot encode the IValue into a graph
+struct TORCH_API constant_not_supported_error : public std::runtime_error {
+  using runtime_error::runtime_error;
+};
+
+TORCH_API Value* insertConstant(
+    Graph& g,
+    const IValue& val,
+    c10::optional<SourceRange> loc = c10::nullopt,
+    c10::optional<ScopePtr> scope = c10::nullopt);
+
+// note: prefer g.insertConsant(val, loc) which does exactly the same thing
+// this function is only declared/defined here because its implementation is
+// closely related to the implementation of prim::Constant that is also in
+// constants.cpp.
+//
+// returns a c10::nullopt if the IValue kind cannot be inserted as a constant
+TORCH_API c10::optional<Value*> tryInsertConstant(
+    Graph& g,
+    const IValue& val,
+    c10::optional<SourceRange> loc = c10::nullopt,
+    c10::optional<ScopePtr> scope = c10::nullopt);
+
+////////////////////////////////////////////////////////////////////////////////
+// Helper for retrieving constants
+////////////////////////////////////////////////////////////////////////////////
+
+// attempt to convert a (possibly constant) Value* into an interpreter value
+// (IValue). returns c10::nullopt if the Value* was not constant
+TORCH_API c10::optional<IValue> toIValue(const Value* v);
+
+// if a value is a constant then try to turn into type T using the
+// same rules as the interpreter
+template <typename T>
+c10::optional<T> constant_as(const Value* v) {
+  if (auto ivalue = toIValue(v)) {
+    return ivalue->to<T>();
+  }
+  return c10::nullopt;
+}
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/graph_utils.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <torch/csrc/jit/ir/ir.h>
+
+#include <vector>
+
+namespace torch {
+namespace jit {
+
+TORCH_API TypePtr getTensorType(const at::Tensor& t, bool complete);
+
+TORCH_API TypePtr inferShapeAndTypeForInput(
+    TypePtr input_type,
+    Stack::const_iterator& s_iter,
+    const Stack::const_iterator& s_iter_end,
+    bool complete);
+
+TORCH_API void setInputTensorTypes(
+    Graph& g,
+    const Stack& stack,
+    bool complete,
+    const std::vector<int>& param_count_list = {});
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/ir.h

@@ -0,0 +1,1841 @@
+#pragma once
+
+#include <torch/csrc/jit/ir/attributes.h>
+#include <torch/csrc/jit/ir/graph_node_list.h>
+#include <torch/csrc/jit/ir/named_value.h>
+#include <torch/csrc/jit/ir/scope.h>
+#include <torch/csrc/jit/runtime/operator.h>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/utils/python_stub.h>
+#include <torch/csrc/utils/schema_info.h>
+
+#include <ATen/Utils.h>
+#include <ATen/core/Tensor.h>
+#include <ATen/core/dynamic_type.h>
+#include <ATen/core/enum_type.h>
+#include <ATen/core/functional.h>
+#include <ATen/core/interned_strings.h>
+#include <ATen/core/ivalue.h>
+#include <ATen/core/jit_type.h>
+#include <c10/util/ArrayRef.h>
+#include <c10/util/Exception.h>
+#include <c10/util/Optional.h>
+
+#include <functional>
+#include <iosfwd>
+#include <unordered_set>
+#include <vector>
+
+// Forward declare, the real meat is in python_ir.cpp
+template <class T>
+class THPPointer;
+using THPObjectPtr = THPPointer<PyObject>;
+using pyobj_list = std::vector<THPObjectPtr>;
+
+namespace torch {
+namespace jit {
+namespace utils {
+TORCH_API std::string getNodesModuleHierarchy(const Node& n);
+} // namespace utils
+class AliasDb;
+
+using ::c10::Argument;
+using ::c10::FunctionSchema;
+using ::c10::Symbol;
+
+using ::c10::ivalue::Shared;
+
+using ::c10::IValue;
+using ::c10::ivalue::Future;
+
+using ::c10::ivalue::ConstantString;
+
+#define C10_USING(T) using ::c10::T;
+C10_FORALL_TYPES(C10_USING)
+#undef C10_USING
+
+#define C10_USING(T) using ::c10::T##Ptr;
+C10_FORALL_TYPES(C10_USING)
+#undef C10_USING
+
+using ::c10::Type;
+using ::c10::TypeEnv;
+using ::c10::TypePtr;
+
+using ::c10::getTypePtr;
+using ::c10::MatchTypeReturn;
+using ::c10::TypeKind;
+
+using ::c10::fmap;
+
+namespace prim {
+using namespace ::c10::prim;
+}
+namespace attr {
+using namespace ::c10::attr;
+}
+namespace aten {
+using namespace ::c10::aten;
+}
+namespace cuda {
+#if !defined(USE_ROCM)
+using namespace ::c10::cuda;
+#endif
+} // namespace cuda
+
+struct Function;
+struct GraphFunction;
+struct MatchedSchema;
+
+// A Graph represents one "function" of computation.
+// It uses a simple ownership model where the graph owns all the nodes inside
+// it. All references inside the graph are raw pointers. Destroying the Graph
+// will invalidate any pointers to nodes in the graph.
+struct Graph;
+
+// Node is the base class of the IR graph. It represents one computation
+// and dependencies on a list of Values. The "prim-ops", so to speak.
+struct Node;
+
+// A Value represents an input or output to node that is either a
+// Tensor or an opaque Handle object, as determined by type().
+struct Value;
+
+TORCH_API std::ostream& operator<<(std::ostream& out, const Graph& g);
+TORCH_API std::ostream& operator<<(std::ostream& out, const Node& n);
+
+// A list of nodes, with inputs and outputs
+struct Block;
+
+// Each use is represented by this type, see 'Node::uses()'
+// 'user' is the consumer of the value, 'offset' is the index into
+// 'user's input this where the producers will be found.
+struct Use {
+  Use(Node* user, size_t offset) : user(user), offset(offset) {}
+  Node* user;
+  size_t offset;
+
+  bool operator==(const Use& b) {
+    return user == b.user && offset == b.offset;
+  }
+};
+
+// Note [User node does not uniquely identify use]
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// A while back, we wrote some code manipulating uses that looked like this:
+//
+//    for (auto& use : used_val->uses_) {
+//      if (use.user == this_node) {
+//        use.offset += 1;
+//        break;
+//      }
+//    }
+//
+// This code is trying to find a particular use (our node's use) to update it.
+// However, it's wrong: there may be *multiple* uses of a value %x in a node,
+// as might be the case in this IR:
+//
+//    %y = Add %x %x
+//
+// In this case, there are two uses of %x whose user is the node 'Add %x %x'.
+// So, "use induced by this node" is not a well-formed concept.
+//
+// If you are looking for "use induced by an input", it's best to use
+// findUseForInput() to get it.
+
+// the list types are intentionally simple, but we type-def
+// them here so if we need to change them, refactoring will be easier
+using node_list = std::vector<Node*>;
+using value_list = std::vector<Value*>;
+using use_list = std::vector<Use>;
+template <typename T>
+using ArrayRef = at::ArrayRef<T>;
+using NodeKind = Symbol;
+using topo_position_t = int64_t;
+using ValueSet = std::unordered_set<const Value*>;
+
+struct OperatorSet;
+template <typename T>
+struct OperatorMap;
+
+// This is a wrapper to allow invalidating the Python object
+// safely when the C++ object for a Node/Value/Block is deleted
+// like much of graph, it isn't safe for different threads to
+// access the same graph
+template <typename T>
+struct Wrap {
+  explicit Wrap(T* p) : elem(p), clear_cb(nullptr) {}
+  void clear() {
+    if (clear_cb) {
+      clear_cb(elem);
+    }
+    elem = nullptr;
+  }
+  T* elem;
+  void (*clear_cb)(void*);
+};
+
+struct Value {
+  AT_DISALLOW_COPY_AND_ASSIGN(Value);
+  Value(Node* node_, size_t offset_);
+
+ private:
+  friend struct Node;
+  friend struct Graph;
+  Node* node_;
+  size_t offset_;
+  size_t unique_ = 0; // unique id
+  use_list uses_;
+  std::string unique_name_;
+  TypePtr type_;
+  // a managing wrapper for Python to allow invalidation
+  std::shared_ptr<Wrap<Value>> wrap_;
+
+ public:
+  Value* setType(TypePtr type);
+  TORCH_API void inferTypeFrom(const at::Tensor& output);
+  TORCH_API void inferTypeFrom(
+      const c10::intrusive_ptr<c10::ivalue::Object>& output);
+  const TypePtr& type() const {
+    AT_ASSERT(type_ != nullptr);
+    return type_;
+  }
+  bool requires_grad() const {
+    return type()->requires_grad();
+  }
+  bool isCompleteTensor() const {
+    if (auto pt = type()->cast<TensorType>()) {
+      return pt->isComplete();
+    }
+    return false;
+  }
+  TORCH_API bool mustBeNone() const;
+  TORCH_API bool mustNotBeNone() const;
+  size_t unique() const {
+    return unique_;
+  }
+  bool hasDebugName() const {
+    return !unique_name_.empty();
+  }
+  static bool isValidName(const std::string& name);
+  TORCH_API Value* setDebugName(const std::string& name);
+  std::string debugName() const {
+    if (hasDebugName()) {
+      return unique_name_;
+    }
+    return c10::to_string(unique());
+  }
+  TORCH_API std::string debugNameBase() const;
+  Node* node() {
+    return node_;
+  }
+  size_t offset() const {
+    return offset_;
+  }
+  void setOffset(size_t offset) {
+    offset_ = offset;
+  }
+  const Node* node() const {
+    return node_;
+  }
+
+  /**
+   * @warning NEVER pass raw pointer of smart pointer managed Graph to Python.
+   * Check #87343 for details.
+   */
+  Graph* owningGraph();
+  const Graph* owningGraph() const;
+  // TODO: make this more const correct
+  const use_list& uses() const {
+    return uses_;
+  }
+
+  bool hasUses() const {
+    return !uses().empty();
+  }
+
+  TORCH_API void replaceFirstUseWith(Value* newValue);
+
+  // Replaces all uses of this value with 'newValue'.
+  //
+  // Given:   %3 = f(%1, %2)
+  //          %4 = g(%3)
+  //          %5 = h(%3, %3)
+  // Execute: %3.replaceAllUsesWith(%6)
+  // Result:  %3 = f(%1, %2)
+  //          %4 = g(%6)
+  //          %5 = h(%6, %6)
+  TORCH_API void replaceAllUsesWith(Value* newValue);
+
+  // Replaces all uses of this value with 'newValue' after 'node'.
+  // Given:   %3 = f(%1, %2)
+  //          %4 = g(%3)
+  //          %5 = inplace_(%3)
+  //          %6 = h(%3, %3)
+  // Execute: %3.replaceAllUsesAfterNodeWith(%5.node(), %5)
+  // Result:  %3 = f(%1, %2)
+  //          %4 = g(%3)
+  //          %5 = inplace_(%3)
+  //          %6 = h(%5, %5)
+  // XXX: does not check scoping legality, consider using
+  // replaceAllUsesDominatedByNodeWith
+  TORCH_API void replaceAllUsesAfterNodeWith(const Node* node, Value* newValue);
+
+  // Replaces all uses of this value with 'newValue' that are dominated by
+  // 'node'. Given:
+  // x = op(...).
+  // if cond:
+  //    z = foo(..)
+  //    bar(x)
+  // else:
+  //    print(x)
+  // x.replaceAllUsesDominatedByNodeWith(foo, z) would replace bar(x)
+  // but not print(x) because print is not dominated by foo.
+  // replaceAllUsesAfterNode does not check domination, so in this example
+  // it would produce invalid IR.
+  TORCH_API void replaceAllUsesDominatedByNodeWith(
+      const Node* node,
+      Value* newValue);
+
+  TORCH_API Value* copyMetadata(Value* from);
+
+  TORCH_API std::shared_ptr<Wrap<Value>> wrap() {
+    if (!wrap_) {
+      wrap_ = std::make_shared<Wrap<Value>>(this);
+    }
+    return wrap_;
+  }
+
+  virtual ~Value() {
+    if (wrap_) {
+      wrap_->clear();
+    }
+  }
+};
+
+struct TORCH_API Node {
+  AT_DISALLOW_COPY_AND_ASSIGN(Node);
+  friend struct Graph;
+  friend struct Block;
+  friend struct Value;
+  friend graph_node_list;
+  friend const_graph_node_list;
+  friend graph_node_list_iterator;
+  friend const_graph_node_list_iterator;
+
+ private:
+  const NodeKind kind_;
+  std::vector<Value*> inputs_;
+  std::vector<Value*> outputs_;
+  // subblocks
+  std::vector<Block*> blocks_;
+  Graph* graph_;
+  Block* owning_block_;
+  c10::optional<SourceRange> source_range_;
+  ScopePtr scope_;
+  c10::optional<InlinedCallStackPtr> callstack_;
+  // Assumes FunctionSchemas are persistent, so we don't manage their lifetime.
+  // This field is effective a cache that's populated on attribute lookups and
+  // invalidated every time we perform an operation that could potentially
+  // change the schema. note: mutable because schema_ is effectively a cache
+  mutable const Operator* op_;
+  topo_position_t topo_position_ = 0;
+  // a managing wrapper for Python to allow invalidation
+  std::shared_ptr<Wrap<Node>> wrap_;
+  // Stores the full schema name, if the operator is historic
+  // When the operator is deprecated or the name of the operator
+  // is changed, we need to rely on this name
+  // to retrieve old schemas to successfully apply upgraders
+  // for this operator.
+  c10::optional<std::string> historic_schema_name_ = c10::nullopt;
+
+ protected:
+  Node(Graph* graph_, NodeKind kind_); // defined after graph
+ public:
+  // Each Node but Return/Param Nodes are associated with exactly one
+  // place in the Node list of the Graph. The Graph itself is a circular
+  // doubly-linked list. The Return Node is used as the sentinel for the
+  // "beginning"/"end" of the list. This means that you can tell when
+  // you've traversed the entire list without means worrying about null
+  // pointers. `next_in_graph[0]` is the pointer to the next Node, while
+  // `next_in_graph[1]` is the pointer to the previous Node. The
+  // linked list is implemented as an array to allow the same iterator
+  // class for forward and reversed Node lists. Taken together, this
+  // list also represents a topological sort of the Nodes in the Graph.
+  // NOLINTNEXTLINE(cppcoreguidelines-avoid-c-arrays,cppcoreguidelines-non-private-member-variables-in-classes,modernize-avoid-c-arrays)
+  Node* next_in_graph[2] = {nullptr, nullptr};
+
+  std::shared_ptr<Wrap<Node>> wrap() {
+    if (!wrap_) {
+      wrap_ = std::make_shared<Wrap<Node>>(this);
+    }
+    return wrap_;
+  }
+
+  const c10::optional<std::string> getHistoricSchemaName() {
+    return historic_schema_name_;
+  }
+
+  void setHistoricSchemaName(const std::string& name) {
+    historic_schema_name_ = name;
+  }
+
+  Node*& next() {
+    return next_in_graph[kNextDirection];
+  }
+  Node*& prev() {
+    return next_in_graph[kPrevDirection];
+  }
+  Node* const& next() const {
+    return next_in_graph[kNextDirection];
+  }
+  Node* const& prev() const {
+    return next_in_graph[kPrevDirection];
+  }
+
+  NodeKind kind() const {
+    return kind_;
+  }
+  Node* setSourceRange(SourceRange r) {
+    source_range_ = std::move(r);
+    return this;
+  }
+  SourceRange sourceRange() const;
+
+  /**
+   * @warning NEVER pass raw pointer of smart pointer managed Graph to Python.
+   * Check #87343 for details.
+   */
+  Graph* owningGraph() {
+    return graph_;
+  }
+  const Graph* owningGraph() const {
+    return graph_;
+  }
+  Block* owningBlock() {
+    return owning_block_;
+  }
+  const Block* owningBlock() const {
+    return owning_block_;
+  }
+  ScopePtr scope() {
+    return scope_;
+  }
+  void setScope(ScopePtr scope) {
+    scope_ = std::move(scope);
+  }
+  std::string scopeName() const {
+    if (!scope_) {
+      return "";
+    }
+    return scope_->namesFromRoot();
+  }
+
+  // Copies the source range, scope and callstack from another node.
+  Node* copyMetadata(Node* from) {
+    this->setSourceRange(from->sourceRange());
+    this->setScope(from->scope());
+    if (auto cs = from->callstack()) {
+      this->setCallStack(*cs);
+    }
+    return this;
+  }
+
+  c10::optional<InlinedCallStackPtr> callstack() const {
+    return callstack_;
+  }
+  void setCallStack(InlinedCallStackPtr cs) {
+    callstack_ = std::move(cs);
+  }
+
+  // NB: This returns an ArrayRef; that means that it will
+  // get invalidated if you resize inputs (e.g., using addInput)
+  // We can't return a std::vector<Node*>& because there's no
+  // way to soundly cast to std::vector<const Node*> (an insane
+  // implementation of std::vector could make this representationally
+  // different.)
+  at::ArrayRef<Value*> inputs() {
+    return inputs_;
+  }
+  at::ArrayRef<const Value*> inputs() const {
+    // Vectors are not convertible in const-ness of elements, but
+    // raw pointers are.
+    return {inputs_.data(), inputs_.size()};
+  }
+  // NB: This returns an ArrayRef; that means that it will
+  // get invalidated if you resize inputs (e.g., using addInput)
+  // We can't return a std::vector<Node*>& because there's no
+  // way to soundly cast to std::vector<const Node*> (an insane
+  // implementation of std::vector could make this representationally
+  // different.)
+  at::ArrayRef<Value*> outputs() {
+    return outputs_;
+  }
+  at::ArrayRef<const Value*> outputs() const {
+    // Vectors are not convertible in const-ness of elements, but
+    // raw pointers are.
+    return {outputs_.data(), outputs_.size()};
+  }
+  Value* output(size_t i) const {
+    return outputs_.at(i);
+  }
+  bool hasUses() const {
+    for (auto o : outputs()) {
+      if (!o->uses().empty()) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  void replaceAllUsesWith(Node* n);
+
+  // replaces `this` with a new node with the same inputs and outputs
+  // but a new node symbol. does not destroy `this`
+  Node* replaceWithNewSymbol(Symbol new_symbol);
+
+  // Checks if this node is dominated by `dominator` which means that
+  // `dominator` will always be executed before `this` and `dominator`
+  // is in scope of `this.
+  bool isDominatedBy(const Node* dominator) const;
+
+  // lots of things like chunk have a single input or single output, so we have
+  // a helper to make accessing it easier
+  Value* input() {
+    AT_ASSERT(inputs_.size() == 1);
+    return inputs_.at(0);
+  }
+  Value* output() {
+    AT_ASSERT(outputs_.size() == 1);
+    return outputs_.at(0);
+  }
+  const Value* output() const {
+    AT_ASSERT(outputs_.size() == 1);
+    return outputs_.at(0);
+  }
+  const Value* input() const {
+    AT_ASSERT(inputs_.size() == 1);
+    return inputs_.at(0);
+  }
+  // Access a particular input.  This is a checked index.
+  Value* input(size_t i) const {
+    return inputs_.at(i);
+  }
+
+  bool hasNamedInput(const std::string& unqualName) const;
+  Value* namedInput(const std::string& unqualName) const;
+  Value* namedInput(Symbol name) const;
+
+  c10::optional<IValue> get(Symbol name) const;
+
+  template <typename T>
+  c10::optional<T> get(Symbol name) const {
+    if (auto v = get(name)) {
+      return v->template to<T>();
+    }
+    return c10::nullopt;
+  }
+
+  // Returns true if the value of input name is statically known
+  bool is_constant(Symbol name) const {
+    return static_cast<bool>(get(name));
+  }
+  bool mustBeNone() const;
+
+  bool isNondeterministic() const;
+  bool hasSideEffects() const;
+
+  // instructions lowered by the interpreter and not run in the optimized graph
+  bool notExecutedOp() const {
+    return kind_ == prim::Constant || kind_ == prim::profile ||
+        kind_ == prim::profile_ivalue;
+  }
+
+  // Graphs
+
+  // Note [Topological invariant]
+  // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  // We always maintain an up-to-date topological ordering of all nodes via
+  // the next()/prev() links.  All transformations to graphs must preserve
+  // this topological ordering: for example, it is only valid to 'addInput'
+  // with an input which is topologically before the current node.
+  //
+  // Usually, it is obvious whether or not topological order is maintained;
+  // for example, if you are adding nodes to the end of the topsort, it's
+  // impossible for them to refer to inputs that are not in the topsort.
+  // If it is not obvious, please comment accordingly.
+
+  // Add 'node' as an input to 'this' at the end of existing
+  // arguments.  Returns the added node for ease of chaining.
+  //
+  // Given:   %3 = f(%1, %2)
+  // Execute: %3.addInput(%4)
+  // Result:  %3 = f(%1, %2, %4)
+  Value* addInput(Value* value);
+
+  // Add 'value' as an input to 'this' at the specified position in the
+  // arguments. Returns the added value for ease of chaining.
+  Value* insertInput(size_t i, Value* value);
+
+  // Replace the input of 'this' at position 'i' with
+  // 'newValue', returning the old node.
+  //
+  // Given:   %3 = f(%1, %2)
+  // Execute: %3.replaceInput(1, %4)
+  // Result:  %3 = f(%1, %4)
+  Value* replaceInput(size_t i, Value* newValue);
+
+  // Replace all occurrences of 'from' in the inputs of this
+  // node with 'to'. Corresponds to llvm's replaceUsesOfWith.
+  //
+  // Given:   %3 = f(%1, %2, %1)
+  // Execute: %3.replaceInputWith(%1, %4)
+  // Result:  %3 = f(%4, %2, %4)
+  void replaceInputWith(Value* from, Value* to);
+
+  Value* addOutput();
+
+  Value* insertOutput(size_t i);
+
+  void eraseOutput(size_t i);
+
+  Block* addBlock();
+  void eraseBlock(size_t i);
+
+  // Each Node can have a list of subblocks. These are used to define structured
+  // nested control flow operators such as If and Loop.
+  // The meaning of a block is specific to the kind of node it is in, but
+  // all blocks share these semantics:
+  // * Nested lexical scoping: If a node 'Parent' has a subblock which contains
+  //   a node 'Child', Child can use any value that was in scope for the Parent
+  //   node in addition to any values defined before 'Child' in the subblock.
+  // * The list of inputs to the block are in scope for the duration of the
+  //   block
+  // * the outputs of the Parent node are not in scope for the subblocks
+  // Typically the inputs to a block that represents control flow act as
+  // as the equivalents phi-nodes in standard SSA form,
+  // defining a new Value to represent any term that has multiple
+  // definitions depending on how control flowed. Outputs of the node containing
+  // control flow serve a similiar purpose defining new values for variables
+  // that would have different definitions depending on which way control
+  // flowed.
+
+  at::ArrayRef<Block*> blocks() {
+    return blocks_;
+  }
+  at::ArrayRef<const Block*> blocks() const {
+    // Vectors are not convertible in const-ness of elements, but
+    // raw pointers are.
+    return {blocks_.data(), blocks_.size()};
+  }
+
+  // Is 'this' before 'n' in the topological order?
+  bool isBefore(const Node* n) const;
+
+  // Is 'this' after 'n' in the topological order?
+  bool isAfter(const Node* n) const;
+
+  // Insert unattached 'this' node before 'n' in the topological order.
+  // Returns this (for chaining).
+  //
+  // Given:   %3 = f(%1, %2)
+  //          %4 = g(%3)
+  // and unattached: %5 = h(%1)
+  // Execute: %5.insertBefore(%4)
+  // Result:  %3 = f(%1, %2)
+  //          %5 = h(%1)
+  //          %4 = g(%3)
+  Node* insertBefore(Node* n);
+
+  // Insert unattached 'this' node after 'n' in the topological order.
+  // Returns this (for chaining).
+  //
+  // Given: %3 = f(%1, %2)
+  //        %4 = g(%3)
+  // and unattached: %5 = h(%1)
+  // Execute: %5.insertAfter(%4)
+  // Result:  %3 = f(%1, %2)
+  //          %4 = g(%3)
+  //          %5 = h(%1)
+  Node* insertAfter(Node* n);
+
+  // Move 'this' (already in the graph) after 'n' in the topological order.
+  //
+  // NOTE: Does not check that value dependencies are preserved, see
+  //   AliasDb::moveAfterTopologicallyValid
+  //
+  // Given: %2 = f(%1)
+  //        %3 = g(%1)
+  // Execute: %2.moveAfter(%3)
+  // Result: %3 = g(%1)
+  //         %2 = f(%1)
+  //
+  void moveAfter(Node* n);
+
+  // Move a node 'n' (already in the graph) before 'this' in the topological
+  // order.
+  //
+  // NOTE: Does not check that value dependencies are preserved, see
+  //   AliasDb::moveBeforeTopologicallyValid
+  //
+  // Given: %2 = f(%1)
+  //        %3 = g(%1)
+  // Execute: %3.moveBefore(%2)
+  // Result: %3 = g(%1)
+  //         %2 = f(%1)
+  void moveBefore(Node* n);
+
+  // Remove the input at 'i' from this node.
+  //
+  // WARNING: This is O(n) in the number of inputs, so avoid repeatedly calling
+  // removeInput.
+  //
+  // Given: %3 = f(%1, %2)
+  // Execute: %3.removeInput(1)
+  // Result: %3 = f(%1)
+  void removeInput(size_t i);
+
+  // Remove all inputs from a node.
+  //
+  // Given: %3 = f(%1, %2)
+  // Execute: %3.removeAllInputs()
+  // Result: %3 = f()
+  void removeAllInputs();
+
+  // Remove all outputs from a node.
+  //
+  // Given: %1, %2 = f()
+  // Execute:removeAllInputs()
+  // Result: = f()
+  void removeAllOutputs();
+
+  // Rearrange the ordering of inputs or outputs of a node
+  // Given: %3 = f(%1, %2)
+  // Execute: %3.permuteInputs({1, 0})
+  // Result: %3 = f(%2, %1)
+  // Each index must appear exactly once
+  void permuteInputs(const std::vector<size_t>& new_inputs);
+  void permuteOutputs(const std::vector<size_t>& new_inputs);
+
+  // iterators of the node list starting at this node
+  // useful for resuming a search starting at this node
+  inline graph_node_list_iterator iterator() {
+    return {this, 0};
+  }
+  inline graph_node_list_iterator reverseIterator() {
+    return iterator().reverse();
+  }
+  inline const_graph_node_list_iterator iterator() const {
+    return {this, 0};
+  }
+  inline const_graph_node_list_iterator reverseIterator() const {
+    return iterator().reverse();
+  }
+
+  // Remove 'this' from the instruction list and deallocate it.
+  //
+  // Invariant: no outputs of 'this' may have any uses.
+  //
+  // Given: %2 = f(%1)
+  //        %3 = g(%1)
+  // Execute: %2.destroy()
+  // Result: %3 = g(%1)
+  void destroy();
+
+  // Dynamically cast this node to the subclass indicated by the
+  // template variable, returning nullptr if the cast is invalid..
+  //
+  // Example usage: if(auto s = n.cast<Select>()) { ... }
+  template <typename T>
+  T* cast() {
+    if (T::Kind == kind()) {
+      return static_cast<T*>(this);
+    }
+    return nullptr;
+  }
+  template <typename T>
+  const T* cast() const {
+    if (T::Kind == kind()) {
+      return static_cast<const T*>(this);
+    }
+    return nullptr;
+  }
+
+  template <typename T>
+  T* expect() {
+    TORCH_CHECK(
+        T::Kind == kind(),
+        "expected a ",
+        T::Kind.toDisplayString(),
+        " but found a ",
+        kind().toDisplayString());
+    return static_cast<T*>(this);
+  }
+
+  bool matches(const FunctionSchema& schema) const;
+
+  // XXX: this function is meant to be used with string literals only!
+  bool matches(
+      const char* signature_literal,
+      at::ArrayRef<Symbol> const_inputs = {}) const;
+
+  bool isMemberOf(const OperatorSet& os) const;
+  template <typename T>
+  bool isMemberOf(const OperatorMap<T>& om) const {
+    auto it = om.map.find(kind());
+    if (it == om.map.end()) {
+      return false;
+    }
+    for (auto& op : it->second) {
+      if (matches(op.first->schema())) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  const FunctionSchema& schema() const;
+  const FunctionSchema* maybeSchema() const;
+  const Operator& getOperator() const;
+  Operation getOperation() const;
+
+  const Operator* maybeOperator() const;
+
+  void dump() const;
+
+  std::ostream& print(
+      std::ostream& out,
+      size_t level,
+      std::vector<const Node*>* groups,
+      bool print_source_locations = true,
+      bool print_attributes = true,
+      bool print_scopes = true,
+      bool print_body = true) const;
+
+  virtual ~Node() {
+    if (wrap_) {
+      wrap_->clear();
+    }
+  }
+
+  // Methods for accessing attributes
+  Node* copyAttributes(const Node& rhs) {
+    values_.clear();
+    for (const AVPtr& i : rhs.values_) {
+      values_.push_back(i->clone());
+    }
+    return this;
+  }
+  bool hasAttribute(Symbol name) const {
+    AT_ASSERT(name.is_attr());
+    return findAttr(name, false) != values_.end();
+  }
+  bool hasAttributeS(const std::string& name) const {
+    return hasAttribute(Symbol::attr(name));
+  }
+  AttributeKind kindOf(Symbol name) const {
+    AT_ASSERT(name.is_attr());
+    return (*findAttr(name, true))->kind();
+  }
+  AttributeKind kindOfS(const std::string& name) const {
+    return kindOf(Symbol::attr(name));
+  }
+  Node* removeAttribute(Symbol name) {
+    AT_ASSERT(name.is_attr());
+    values_.erase(findAttr(name, true));
+    return this;
+  }
+  Node* removeAttributeS(const std::string& name) {
+    return removeAttribute(Symbol::attr(name));
+  }
+  bool hasAttributes() const {
+    return !values_.empty();
+  }
+  size_t numAttributes() const {
+    return values_.size();
+  }
+  // The names are returned in order, since name actually is the index.
+  std::vector<Symbol> attributeNames() const {
+    std::vector<Symbol> names;
+    names.reserve(values_.size());
+    for (const AVPtr& a : values_) {
+      names.push_back(a->name);
+    }
+    return names;
+  }
+  std::vector<const char*> attributeNamesS() const {
+    std::vector<const char*> names;
+    names.reserve(values_.size());
+    for (const AVPtr& a : values_) {
+      names.push_back(a->name.toUnqualString());
+    }
+    return names;
+  }
+
+#define CREATE_ACCESSOR(Kind, method)                           \
+  Node* method##_(Symbol name, Kind##Attr::ConstructorType v) { \
+    return setAttr<Kind##Attr>(                                 \
+        name, std::forward<Kind##Attr::ConstructorType>(v));    \
+  }                                                             \
+  const Kind##Attr::ValueType& method(Symbol name) const {      \
+    return getAttr<Kind##Attr>(name);                           \
+  }
+
+  CREATE_ACCESSOR(Float, f)
+  CREATE_ACCESSOR(Complex, c)
+  CREATE_ACCESSOR(Floats, fs)
+  CREATE_ACCESSOR(ComplexVals, cs)
+  CREATE_ACCESSOR(String, s)
+  CREATE_ACCESSOR(Strings, ss)
+  CREATE_ACCESSOR(Int, i)
+  CREATE_ACCESSOR(Ints, is)
+  CREATE_ACCESSOR(Graph, g)
+  CREATE_ACCESSOR(Graphs, gs)
+  CREATE_ACCESSOR(Type, ty)
+  CREATE_ACCESSOR(Types, tys)
+  CREATE_ACCESSOR(IValue, ival)
+
+#undef CREATE_ACCESSOR
+
+  // Our Graphs are not very const-correct, so we need to allow returning
+  // non-const references too
+  GraphAttr::ValueType& g(Symbol name) {
+    return getAttr<GraphAttr>(name);
+  }
+
+  // does not use CREATE_ACCESSOR because we need additional asserts
+  Node* t_(Symbol name, TensorAttr::ConstructorType v) {
+    return setAttr<TensorAttr>(
+        name, std::forward<TensorAttr::ConstructorType>(v));
+  }
+  const TensorAttr::ValueType& t(Symbol name) const {
+    return getAttr<TensorAttr>(name);
+  }
+
+  Node* ts_(Symbol name, TensorsAttr::ConstructorType v) {
+    return setAttr<TensorsAttr>(
+        name, std::forward<TensorsAttr::ConstructorType>(v));
+  }
+  const TensorsAttr::ValueType& ts(Symbol name) const {
+    return getAttr<TensorsAttr>(name);
+  }
+
+  Block* findCommonAncestorBlockWith(Node* n);
+
+  size_t blocksFromGraphBlock();
+
+ private:
+  void printAttrValue(std::ostream& out, const Symbol& name) const;
+  void printAttributes(std::ostream& out, bool ignore_subgraph) const;
+
+  template <typename T>
+  Node* setAttr(Symbol name, typename T::ConstructorType v) {
+    AT_ASSERT(name.is_attr());
+    auto it = findAttr(name, false);
+    auto nv = AVPtr(new T(name, std::forward<typename T::ConstructorType>(v)));
+    // NOLINTNEXTLINE(bugprone-branch-clone)
+    if (it == values_.end()) {
+      values_.push_back(std::move(nv));
+    } else {
+      *it = std::move(nv);
+    }
+    return this;
+  }
+  template <typename T>
+  typename T::ValueType& getAttr(Symbol name) const {
+    AT_ASSERT(name.is_attr());
+    auto it = findAttr(name, true);
+    auto* child = dynamic_cast<T*>(it->get());
+    if (child == nullptr) {
+      throw IRAttributeError(name, true);
+    }
+    return child->value();
+  }
+  using AVPtr = AttributeValue::Ptr;
+  // NB: For determinism, we use a vector rather than a hash map.  This does
+  // mean that lookups are O(n), so you shouldn't use Attributes to store
+  // a big pile of messages.
+  std::vector<AVPtr> values_;
+  std::vector<AVPtr>::iterator findAttr(Symbol name, bool required) {
+    AT_ASSERT(name.is_attr());
+    auto it = std::find_if(values_.begin(), values_.end(), [&](const AVPtr& v) {
+      return v->name == name;
+    });
+    if (required && it == values_.end()) {
+      throw IRAttributeError(name, false);
+    }
+    AT_ASSERT(!required || it != values_.end());
+    return it;
+  }
+  std::vector<AVPtr>::const_iterator findAttr(Symbol name, bool required)
+      const {
+    AT_ASSERT(name.is_attr());
+    auto it = std::find_if(values_.begin(), values_.end(), [&](const AVPtr& v) {
+      return v->name == name;
+    });
+    if (required && it == values_.end()) {
+      throw IRAttributeError(name, false);
+    }
+    AT_ASSERT(!required || it != values_.end());
+    return it;
+  }
+
+  enum class MoveSide { BEFORE, AFTER };
+  bool isBeforeOrAfter(const Node* n, MoveSide moveSide) const;
+
+  std::pair<Value*, const Argument&> findInput(Symbol name);
+  // Lookup iterator in use list of _input i_ that corresponds to its use of
+  // _this_
+  use_list::iterator findUseForInput(size_t i);
+
+  // remove the use of input i, this sets input i to nullptr, but
+  // is only used internally to Node before setting it to a new value
+  // or erasing the entry from the list.
+  Value* dropInput(size_t i);
+
+  bool inBlockList() const {
+    if (next() == nullptr) {
+      AT_ASSERT(prev() == nullptr);
+    }
+    return next() != nullptr;
+  }
+
+  void removeFromList();
+  void lint() const;
+
+  void assignTopoPosition();
+
+ protected:
+  // subclasses must override
+  // this function is used by createClone to initialize a new version
+  // of a node in another graph. It should allocate a new instance of the same
+  // concrete type as 'this', but in graph 'g' which might be different
+  // than graph_
+  virtual Node* allocNewInstance(Graph* g) {
+    return new Node(g, kind());
+  }
+  // create a copy of all properties of Node s into this.
+  // subclasses should extend if they have additional information to copy.
+  // 'this' will be allocated with s->allocNewInstance(g) so it should have
+  // the same concrete type as 's'
+  virtual void cloneFrom(Node* s);
+};
+
+struct Block {
+  friend struct Node;
+  friend struct Graph;
+
+  AT_DISALLOW_COPY_AND_ASSIGN(Block);
+  TORCH_API Block(Graph* graph_, Node* node_);
+
+  at::ArrayRef<Value*> inputs() {
+    return input_->outputs();
+  }
+  at::ArrayRef<const Value*> inputs() const {
+    const auto& inputs = input_->outputs();
+    return {inputs.data(), inputs.size()};
+  }
+  at::ArrayRef<Value*> outputs() {
+    return output_->inputs();
+  }
+  at::ArrayRef<const Value*> outputs() const {
+    return static_cast<const Node*>(output_)->inputs();
+  }
+  graph_node_list nodes() {
+    return {input_, kNextDirection};
+  }
+  const_graph_node_list nodes() const {
+    return {input_, kNextDirection};
+  }
+  Node* return_node() {
+    return output_;
+  }
+  const Node* return_node() const {
+    return output_;
+  }
+  Node* param_node() {
+    return input_;
+  }
+  const Node* param_node() const {
+    return input_;
+  }
+  /**
+   * @warning NEVER pass raw pointer of smart pointer managed Graph to Python.
+   * Check #87343 for details.
+   */
+  Graph* owningGraph() {
+    return graph_;
+  }
+  const Graph* owningGraph() const {
+    return graph_;
+  }
+  Node* owningNode() {
+    return owning_node_;
+  }
+  const Node* owningNode() const {
+    return owning_node_;
+  }
+
+  Value* addInput(const std::string& name = "") {
+    Value* v = input_->addOutput();
+    v->setDebugName(name);
+    return v;
+  }
+  Value* insertInput(size_t i, const std::string& name = "") {
+    Value* v = input_->insertOutput(i);
+    v->setDebugName(name);
+    return v;
+  }
+  void eraseInput(size_t i) {
+    input_->eraseOutput(i);
+  }
+  void removeAllInputs() {
+    input_->removeAllOutputs();
+  }
+  size_t registerOutput(Value* v) {
+    output_->addInput(v);
+    return outputs().size() - 1;
+  }
+  size_t insertOutput(size_t i, Value* n) {
+    output_->insertInput(i, n);
+    return i;
+  }
+  void eraseOutput(size_t i) {
+    output_->removeInput(i);
+  }
+  void removeAllOutputs() {
+    output_->removeAllInputs();
+  }
+
+  void replaceOutput(size_t i, Value* n) {
+    output_->replaceInput(i, n);
+  }
+  void permuteOutputs(const std::vector<size_t>& new_inputs) {
+    output_->permuteInputs(new_inputs);
+  }
+  void permuteInputs(const std::vector<size_t>& new_inputs) {
+    input_->permuteOutputs(new_inputs);
+  }
+
+  Node* appendNode(Node* n) {
+    AT_ASSERT(n->graph_ == graph_ && !n->inBlockList());
+    n->insertBefore(output_);
+    return n;
+  }
+  Node* prependNode(Node* n) {
+    AT_ASSERT(n->graph_ == graph_ && !n->inBlockList());
+    n->insertAfter(input_);
+    return n;
+  }
+
+  // clone all inputs, nodes, and outputs from src and append them
+  // to the inputs, nodes, and outputs of this block
+  // value_map is used whenever a node in src references a free variable
+  // in src to look up its corresponding value
+  TORCH_API void cloneFrom(Block* src, std::function<Value*(Value*)> value_map);
+  TORCH_API void remapTypes(const std::function<TypePtr(TypePtr)>& type_map);
+
+  TORCH_API std::shared_ptr<Wrap<Block>> wrap() {
+    if (!wrap_) {
+      wrap_ = std::make_shared<Wrap<Block>>(this);
+    }
+    return wrap_;
+  }
+
+  virtual ~Block() {
+    if (wrap_) {
+      wrap_->clear();
+    }
+  }
+
+  void clear() {
+    removeAllOutputs();
+    for (auto it = nodes().rbegin(); it != nodes().rend(); it++) {
+      it.destroyCurrent();
+    }
+    removeAllInputs();
+  }
+
+ private:
+  void reIndexTopology();
+
+  // get rid of all nodes
+  // destroys in reverse order so that uses internal to this block
+  // do not have to be removed before you can destroy the block
+  void destroy();
+
+  Graph* const graph_;
+  // holds outputs in a way that can be reflected
+  // as a Use object
+  // also used as the beginning/end of the circular node list to avoid
+  // having corner cases where the list is empty.
+  Node* const output_;
+  Node* const input_;
+  Node* const
+      owning_node_; // either the node that has this block or nullptr for root
+  // a managing wrapper for Python to allow invalidation
+  std::shared_ptr<Wrap<Block>> wrap_;
+};
+
+struct Graph : std::enable_shared_from_this<Graph> {
+  AT_DISALLOW_COPY_AND_ASSIGN(Graph);
+  friend struct Node;
+  friend struct Value;
+  friend struct Block;
+
+ private:
+  // only used to keep track of allocated nodes
+  // actual representation of Graph is done with
+  // inputs, outputs, nodes
+
+  std::unordered_set<const Node*> all_nodes;
+  std::unordered_set<const Value*> all_values;
+  std::unordered_set<const Block*> all_blocks;
+  size_t next_unique_;
+
+  std::unordered_map<std::string, Value*> unique_names_;
+  // name_base_suffix tracks largest suffix currently used by all names sharing
+  // same name_base. Key of this map is name_base, value is largest suffix
+  // numeric value.
+  std::unordered_map<std::string, size_t> name_base_suffix_;
+
+  ScopePtr current_scope_;
+
+  Block* const block_;
+  // when insertNode() is called, the node is inserted before this node
+  // by default this is set to append to the top level block
+  Node* insert_before_;
+  int64_t predicted_insert_count_ = 0;
+
+  c10::optional<size_t> op_version_;
+
+ public:
+  Graph(ScopePtr scope_root = c10::make_intrusive<Scope>())
+      : next_unique_(0),
+        current_scope_(std::move(scope_root)),
+        block_(new Block(this, nullptr)),
+        insert_before_(return_node()) {}
+
+  at::ArrayRef<Value*> inputs() {
+    return block_->inputs();
+  }
+  at::ArrayRef<const Value*> inputs() const {
+    const Block& block = *block_;
+    return block.inputs();
+  }
+  at::ArrayRef<Value*> outputs() {
+    return block_->outputs();
+  }
+  at::ArrayRef<const Value*> outputs() const {
+    const Block& block = *block_;
+    return block.outputs();
+  }
+  graph_node_list nodes() {
+    return block_->nodes();
+  }
+  const_graph_node_list nodes() const {
+    const Block& block = *block_;
+    return block.nodes();
+  }
+  Node* param_node() {
+    return block_->param_node();
+  }
+  const Node* param_node() const {
+    return block_->param_node();
+  }
+  Node* return_node() {
+    return block_->return_node();
+  }
+  const Node* return_node() const {
+    return block_->return_node();
+  }
+  const std::unordered_map<std::string, Value*>& debugNames() const {
+    return unique_names_;
+  }
+
+  TORCH_API void push_scope(const std::string& scope_name);
+  TORCH_API void pop_scope();
+
+  ScopePtr current_scope() {
+    return current_scope_;
+  }
+
+  void set_op_version(c10::optional<size_t> version) {
+    op_version_ = version;
+  }
+
+  c10::optional<size_t> get_op_version() {
+    return op_version_;
+  }
+
+  void set_current_scope(ScopePtr scope) {
+    current_scope_ = std::move(scope);
+  }
+
+  Value* addInput(const std::string& name = "") {
+    return block_->addInput(name);
+  }
+  Value* insertInput(size_t i, const std::string& name = "") {
+    return block_->insertInput(i, name);
+  }
+  void eraseInput(size_t i) {
+    block_->eraseInput(i);
+  }
+  size_t registerOutput(Value* n) {
+    return block_->registerOutput(n);
+  }
+  void eraseOutput(size_t i) {
+    block_->eraseOutput(i);
+  }
+
+  TORCH_API Node* create(NodeKind kind, size_t num_outputs = 1);
+  TORCH_API Node* create(
+      NodeKind kind,
+      ArrayRef<Value*> inputs,
+      size_t num_outputs = 1);
+
+  TORCH_API Node* createNone();
+  TORCH_API Node* createAutogradZero();
+  TORCH_API Node* createUninitialized(TypePtr typ);
+  TORCH_API Node* createWithSubgraph(Symbol kind);
+  TORCH_API Node* createDifferentiableSubgraph();
+  TORCH_API Node* createTuple(
+      at::ArrayRef<Value*> values,
+      TupleTypePtr optional_named_tuple = nullptr);
+  TORCH_API Node* createTupleUnpack(Value* v);
+  TORCH_API Node* createTupleIndex(
+      Value* tup,
+      Value* idx,
+      const TypePtr& output_type);
+  TORCH_API Node* createTupleSlice(
+      Value* tup,
+      int64_t beg,
+      int64_t step_size,
+      int64_t num_values);
+  TORCH_API Node* createEnumName(Value* e);
+  TORCH_API Node* createEnumValue(Value* e);
+  TORCH_API Node* createList(
+      const TypePtr& contained_type,
+      at::ArrayRef<Value*> values);
+  TORCH_API Node* createListUnpack(Value* v, size_t size);
+  TORCH_API Node* createDict(
+      const TypePtr& key_type,
+      const TypePtr& value_type,
+      at::ArrayRef<Value*> keys,
+      at::ArrayRef<Value*> values);
+  TORCH_API Node* createNumToTensor(Value* value);
+  TORCH_API Node* createObject(const ClassTypePtr& type);
+  TORCH_API Node* createSetAttr(
+      Value* obj,
+      const std::string& field,
+      Value* newValue);
+  TORCH_API Node* createGetAttr(Value* obj, const std::string& field);
+  Value* insertGetAttr(Value* obj, const std::string& field) {
+    return insertNode(createGetAttr(obj, field))->output();
+  }
+  TORCH_API Node* createStore(const std::string& name, Value* v);
+  TORCH_API Node* createLoad(const std::string& name, const TypePtr& type);
+  TORCH_API Node* createIsInstance(Value* v, at::ArrayRef<TypePtr> types);
+
+  TORCH_API Value* insertUncheckedCast(Value* v, TypePtr type);
+
+  // Insert a ToList operator with argument \p v and output type \p type.
+  // \returns the output of the operation.
+  TORCH_API Value* insertToList(Value* v, TypePtr type);
+
+  TORCH_API Value* insertFunctionCall(
+      Function* callee,
+      const MatchedSchema& matched);
+  TORCH_API Value* insertMethodCall(
+      std::string method_name,
+      const MatchedSchema& matched);
+
+  // Note: defined in python_ir.cpp and can be used only in python extension
+  Node* createPythonOp(
+      THPObjectPtr&& pyobj,
+      const std::string& cconv,
+      pyobj_list&& scalar_args);
+  // clone n, making a new node in _this_ graph.
+  // use value_map to translate inputs of n to inputs of the cloned node
+  // if copy_blocks is false, it will not recursively clone the nested blocks
+  // this node contains.
+  TORCH_API Node* createClone(
+      Node* n,
+      const std::function<Value*(Value*)>& value_map,
+      bool copy_blocks = true);
+
+  // Insert constant IValue into the graph.
+  TORCH_API Value* insertConstant(
+      const IValue& val,
+      c10::optional<SourceRange> loc = c10::nullopt,
+      c10::optional<ScopePtr> scope = c10::nullopt);
+
+  // Schema-driven insert:
+  // This inserts a node into the graph with inputs determined from args and
+  // kwargs using Python argument matching rules, and checks that the op matches
+  // a known schema.
+  //
+  // If this node successfully completes, it guarentees the node
+  // is a correctly-formed invocation of opname
+  TORCH_API Value* insert(
+      Symbol opname,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs = {},
+      const c10::optional<SourceRange>& range = {});
+
+  Node* appendNode(Node* n) {
+    return block_->appendNode(n);
+  }
+
+  Node* prependNode(Node* n) {
+    return block_->prependNode(n);
+  }
+
+  // insert before insert_before_ node
+  // initialized to insert at the end of the top level block
+  // can be changed with setInsertPoint()
+  Node* insertNode(Node* n) {
+    AT_ASSERT(
+        insert_before_->inBlockList() &&
+        "insert point node is no longer in a block list");
+    return n->insertBefore(insert_before_);
+  }
+  // set where nodes are inserted to append to the end of this block
+  void setInsertPoint(Block* b) {
+    AT_ASSERT(b->owningGraph() == this);
+    setInsertPoint(b->return_node());
+  }
+  // set where nodes are inserted to insert _before_ this node
+  // for implementation simplicity we only support inserting before a node for
+  // now
+  void setInsertPoint(Node* n) {
+    AT_ASSERT(n->owningGraph() == this && n->inBlockList());
+    insert_before_ = n;
+    predicted_insert_count_ = 0;
+  }
+  Node* insertPoint() {
+    return insert_before_;
+  }
+
+  // the top level block
+  Block* block() {
+    return block_;
+  }
+  const Block* block() const {
+    return block_;
+  }
+
+  // Checks well-formedness and invariants of graph
+  TORCH_API void lint() const;
+  // for use in debugger
+  TORCH_API void dump() const;
+
+  TORCH_API ~Graph();
+
+  TORCH_API std::string toString(bool print_source_locations = true) const;
+
+  TORCH_API std::ostream& print(
+      std::ostream& out,
+      bool print_source_locations = true) const;
+
+  friend TORCH_API std::ostream& operator<<(std::ostream& out, const Graph& g);
+
+  TORCH_API std::shared_ptr<Graph> copy();
+  TORCH_API std::unique_ptr<Graph> copyUnique();
+  TORCH_API void remapTypes(const std::function<TypePtr(TypePtr)>& type_map);
+
+ private:
+  friend TORCH_API void Lint(const AliasDb* db);
+  TORCH_API void freeNode(Node* n);
+  TORCH_API void freeValue(Value* v);
+  TORCH_API void freeBlock(Block* b);
+  void cloneFrom(Graph& src);
+};
+
+/** \brief An utility class for setting temporary insertion points.
+ *
+ * When an object of this class is created, it stores the current insertion
+ * point, sets the new one, and restores the original insertion point when the
+ * object is destroyed.
+ */
+struct WithInsertPoint {
+  WithInsertPoint(Node* n) : prev_(n->owningGraph()->insertPoint()) {
+    n->owningGraph()->setInsertPoint(n);
+  }
+  WithInsertPoint(Block* b) : WithInsertPoint(b->return_node()) {}
+
+  ~WithInsertPoint() {
+    prev_->owningGraph()->setInsertPoint(prev_);
+  }
+
+ private:
+  Node* prev_;
+};
+
+/** \brief An utility class for setting temporary scopes.
+ *
+ * When an object of this class is created, it stores the current scope, sets
+ * the new one, and restores the original scope when the object is destroyed.
+ */
+struct WithCurrentScope {
+  WithCurrentScope(Graph& g, ScopePtr scope)
+      : graph_(&g), prev_scope_(g.current_scope()) {
+    g.set_current_scope(std::move(scope));
+  }
+  ~WithCurrentScope() {
+    graph_->set_current_scope(prev_scope_);
+  }
+
+ private:
+  Graph* graph_;
+  ScopePtr prev_scope_;
+};
+
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+inline Value::Value(Node* node_, size_t offset_)
+    : node_(node_),
+      offset_(offset_),
+      unique_(node_->graph_->next_unique_++),
+      type_(TensorType::get()) {
+  node_->graph_->all_values.emplace(this);
+}
+
+inline Value* Value::setType(TypePtr type) {
+  AT_ASSERT(type);
+  if (auto dyn = type->castRaw<c10::DynamicType>()) {
+    type = dyn->fallback();
+  }
+  type_ = std::move(type);
+  for (Use& use : uses_) {
+    use.user->op_ = nullptr;
+  }
+  return this;
+}
+
+inline Graph* Value::owningGraph() {
+  return node()->owningGraph();
+}
+
+inline const Graph* Value::owningGraph() const {
+  return node()->owningGraph();
+}
+
+/************* All nodes not required to be defined before Graph **************/
+struct ProfileOp : public Node {
+  static const Symbol Kind;
+  ProfileOp(Graph* graph, std::function<void(std::vector<IValue>&)> callback)
+      : Node(graph, ::c10::prim::profile), callback_(std::move(callback)) {}
+
+  void cloneFrom(Node* other_) override;
+  Node* allocNewInstance(Graph* g) override;
+
+  const std::function<void(std::vector<IValue>&)>& getCallback() const {
+    return callback_;
+  }
+
+  void setCallback(std::function<void(std::vector<IValue>&)> callback) {
+    callback_ = std::move(callback);
+  }
+
+  bool hasSeenTensor() const {
+    return has_seen_tensor_;
+  }
+
+  void setHasSeenTensor(bool has_seen_tensor) {
+    has_seen_tensor_ = has_seen_tensor;
+  }
+
+ private:
+  std::function<void(std::vector<IValue>&)> callback_;
+  bool has_seen_tensor_ = false;
+};
+
+struct TORCH_API ProfileIValueOp : public Node {
+  static const Symbol Kind;
+  ProfileIValueOp(
+      Graph* graph,
+      std::function<void(std::vector<IValue>&)> callback)
+      : Node(graph, ::c10::prim::profile_ivalue),
+        callback_(std::move(callback)) {}
+
+  void cloneFrom(Node* other_) override;
+  Node* allocNewInstance(Graph* g) override;
+
+  const std::function<void(std::vector<IValue>&)>& getCallback() const {
+    return callback_;
+  }
+
+  void setCallback(std::function<void(std::vector<IValue>&)> callback) {
+    callback_ = std::move(callback);
+  }
+
+ private:
+  std::function<void(std::vector<IValue>&)> callback_;
+};
+
+// execute a Python function, used for Ops we can't optimize but that we want to
+// optimize around
+//
+// Note: actual implementation (ConcretePythonOp) is defined in python_ir.cpp
+// which is not included in libtorch.so. We still include some bits and pieces
+// of PythonOp here to enable writing simple passes generically. In general,
+// python-aware bits need to be moved to the descendant classes.
+struct TORCH_API PythonOp : public Node {
+  using Node::Node;
+
+  virtual std::string name() const = 0;
+  virtual void writeScalars(std::ostream& out) const = 0;
+  void cloneFrom(Node* other_) override = 0;
+  Node* allocNewInstance(Graph* g) override = 0;
+  // recover the autograd.Function instance, if this PythonOp's function
+  // was originally SomeFunction.apply
+  // used in ONNX for discovering symbolics
+  virtual c10::optional<THPObjectPtr> autogradFunction() const = 0;
+
+  virtual void lint_python() const = 0;
+};
+
+TORCH_API void LintGraph(const std::shared_ptr<Graph>& graph);
+
+TORCH_API at::ArrayRef<Value*> createTupleUnpack(Value* v);
+
+/** Insert graph \p CALLEE into graph \p G using \p INPUTS as input values.
+ * The insertion happens at the current insertion point.
+ * Optionally, one can also pass \p VALUE_MAP to get a map between \p CALLEE
+ * values and their cloned copies in \p G.
+ */
+TORCH_API std::vector<Value*> insertGraph(
+    Graph& g,
+    Graph& callee,
+    ArrayRef<Value*> inputs);
+TORCH_API std::vector<Value*> insertGraph(
+    Graph& g,
+    Graph& callee,
+    ArrayRef<Value*> inputs,
+    std::unordered_map<Value*, Value*>& value_map);
+
+/** Insert function \p CALLEE after node \p TO_REPLACE, remove the node and
+ * replace all its uses with corresponding outputs of the inserted function.
+ * This asserts that the number of outputs of the original node and the
+ * graph are the same.
+ */
+TORCH_API std::vector<Value*> inlineCallTo(
+    Node* to_replace,
+    GraphFunction* callee,
+    bool use_graph = true);
+
+TORCH_API std::vector<Value*> inlineCallTo(
+    Node* to_replace,
+    GraphFunction* callee,
+    Graph* callee_graph);
+
+/** If there is only one value in \p OUTPUTS and its kind is Tuple, insert a
+ * tuple unpack node and return the resulting values.
+ */
+TORCH_API std::vector<Value*> unpackOutputs(const std::vector<Value*>& outputs);
+
+TORCH_API std::vector<Node*> findAllNodes(Graph& g, Symbol kind, bool recurse);
+TORCH_API std::vector<Node*> findAllNodes(Block& b, Symbol kind, bool recurse);
+TORCH_API std::vector<Node*> findAllNodes(
+    at::ArrayRef<Block*> a,
+    Symbol kind,
+    bool recurse);
+
+struct TORCH_API OperatorSet {
+  OperatorSet(std::initializer_list<const char*> sig_literals);
+  std::vector<std::shared_ptr<Operator>> getOps() const;
+  void insert(std::initializer_list<const char*> sig_literals);
+
+ private:
+  friend struct Node;
+  std::unordered_map<Symbol, std::vector<std::shared_ptr<Operator>>> ops;
+};
+
+template <typename T>
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct OperatorMap {
+  // Type aliasing
+  using OpMapType = typename std::pair<std::shared_ptr<Operator>, T>;
+  using ValueType = std::vector<OpMapType>;
+  using MapType = std::unordered_map<Symbol, ValueType>;
+
+  OperatorMap() = default;
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+  explicit OperatorMap(
+      std::initializer_list<std::pair<std::shared_ptr<Operator>, T>> init) {
+    insert(init);
+  }
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+  explicit OperatorMap(std::initializer_list<std::pair<const char*, T>> init) {
+    insert(init);
+  }
+
+  void insert(const std::shared_ptr<Operator>& op, T val) {
+    // Remove if exists before insert
+    erase(op);
+    map[Symbol::fromQualString(op->schema().name())].emplace_back(
+        std::make_pair(op, val));
+  }
+
+  void insert(const OperatorSet& op_set, T val) {
+    for (auto& op : op_set.getOps()) {
+      insert(op, val);
+    }
+  }
+
+  void insert(
+      std::initializer_list<std::pair<std::shared_ptr<Operator>, T>> v) {
+    for (auto& el : v) {
+      insert(el.first, el.second);
+    }
+  }
+
+  void insert(std::initializer_list<std::pair<const char*, T>> v) {
+    for (auto& el : v) {
+      insert(getOperatorForLiteral(el.first), el.second);
+    }
+  }
+
+  void erase(const std::shared_ptr<Operator>& op) {
+    auto it = map.find(Symbol::fromQualString(op->schema().name()));
+    if (it == map.end()) {
+      return;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first->schema() == op->schema()) {
+        it->second.erase(vit);
+        break;
+      }
+    }
+    if (it->second.size() == 0) {
+      map.erase(Symbol::fromQualString(op->schema().name()));
+    }
+  }
+
+  bool contains(const Operator& op) const {
+    const auto it = map.find(Symbol::fromQualString(op.schema().name()));
+    if (it == map.end()) {
+      return false;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first->schema() == op.schema()) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  bool contains(const Node* n) const {
+    return n->maybeOperator() && contains(n->getOperator());
+  }
+
+  c10::optional<T> find(const Operator& op) {
+    const auto it = map.find(Symbol::fromQualString(op.schema().name()));
+    if (it == map.end()) {
+      return c10::nullopt;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first->schema() == op.schema()) {
+        return vit->second;
+      }
+    }
+    return c10::nullopt;
+  }
+
+  // TODO: return iterator
+  std::vector<OpMapType> getAllKeysAndValues() const {
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    std::vector<OpMapType> keys_values;
+    for (auto& symbol_mapping : map) {
+      auto& vec = symbol_mapping.second;
+      for (auto& pair : vec) {
+        keys_values.push_back(pair);
+      }
+    }
+    return keys_values;
+  }
+
+ private:
+  friend struct Node;
+  MapType map;
+};
+
+template <typename T>
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct FunctionSchemaMap {
+  // Type aliasing
+  using FuncSchemaMapType = typename std::pair<FunctionSchema, T>;
+  using ValueType = std::vector<FuncSchemaMapType>;
+  using MapType = std::unordered_map<Symbol, ValueType>;
+
+  FunctionSchemaMap() = default;
+  void insert(const FunctionSchema& schema, T val) {
+    // Remove if exists before insert
+    erase(schema);
+    map[Symbol::fromQualString(schema.name())].emplace_back(
+        std::make_pair(schema, val));
+  }
+
+  void erase(const FunctionSchema& schema) {
+    auto it = map.find(Symbol::fromQualString(schema.name()));
+    if (it == map.end()) {
+      return;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first == schema) {
+        it->second.erase(vit);
+        break;
+      }
+    }
+    if (it->second.size() == 0) {
+      map.erase(Symbol::fromQualString(schema.name()));
+    }
+  }
+
+  bool contains(const FunctionSchema& schema) const {
+    const auto it = map.find(Symbol::fromQualString(schema.name()));
+    if (it == map.end()) {
+      return false;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first->schema() == schema) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  c10::optional<T> find(const FunctionSchema& schema) const {
+    const auto it = map.find(Symbol::fromQualString(schema.name()));
+    if (it == map.end()) {
+      return c10::nullopt;
+    }
+    for (auto vit = it->second.begin(); vit != it->second.end(); ++vit) {
+      if (vit->first == schema) {
+        return vit->second;
+      }
+    }
+    return c10::nullopt;
+  }
+
+  // TODO: return iterator
+  std::vector<FuncSchemaMapType> getAllKeysAndValues() const {
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    std::vector<FuncSchemaMapType> keys_values;
+    for (auto& symbol_mapping : map) {
+      auto& vec = symbol_mapping.second;
+      for (auto& pair : vec) {
+        keys_values.push_back(pair);
+      }
+    }
+    return keys_values;
+  }
+
+ private:
+  friend struct Node;
+  MapType map;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/node_hashing.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+struct TORCH_API HashNode {
+  size_t operator()(const Node* k) const;
+};
+
+struct TORCH_API EqualNode {
+  bool operator()(const Node* lhs, const Node* rhs) const;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/subgraph_matcher.h

@@ -0,0 +1,74 @@
+#pragma once
+
+#include <torch/csrc/jit/ir/ir.h>
+
+#include <unordered_map>
+#include <vector>
+
+namespace torch {
+namespace jit {
+
+/**
+ * \brief A structure describing a match of a pattern in a graph.
+ *
+ * The structure contains an anchor node, from which the match was found, and
+ * match-maps for nodes and values. A match-map specifies the correspondance
+ * between nodes in the pattern graph (match-map keys) with nodes in the actual
+ * graph (match-map values). We keep such maps for both nodes and values.
+ */
+struct Match {
+  Node* anchor;
+  std::unordered_map<const Node*, Node*> nodes_map;
+  std::unordered_map<const Value*, Value*> values_map;
+};
+
+/**
+ * \brief Find all matches of a \p PATTERN in a \p GRAPH.
+ *
+ * The function returns a vector of match-descriptors (see description of
+ * `struct Match`).
+ *
+ * Matching rules:
+ *  - Pattern graph must contain a single block.
+ *  - Matched subgraphs do not span across different blocks.
+ *  - No uses outside the match are allowed, except for Param and Return nodes.
+ *  Basically, we're matching hammocks, not arbitrary subgraphs.
+ *  - The pattern graph must return only one value (i.e. it must have a single
+ *  node leading to return).
+ *  - Nodes that are not used in computation of the return value in the pattern
+ * graph are ignored during matching (IOW, we're essentially performing DCE on
+ * the pattern).
+ *  - Pattern graph nodes cannot alias. TODO: the check not implemented yet.
+ *  - Aliasing nodes in the graph cannot consitute a match (i.e. through all
+ * found matches, no nodes in the subgraph alias with each other). TODO: check
+ * not implemented yet.
+ *  - The matcher will not mutate either the pattern graph or the matched graph.
+ * The matched graph is taken as non-const so that Match may contain non-const
+ * pointers.  This enables clients of this API to use Match to drive mutations.
+ *
+ * Note [Multi-output Patterns]
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * Subgraph matcher provides limited support for multi-output patterns. With a
+ * single output pattern, a single scan through the graph is sufficient to
+ * find all the matches: given a starting node (an "anchor"), we can
+ * deterministically check whether a pattern matches a subgraph corresponding to
+ * this anchor node. For a general case of multi-output patterns, we would have
+ * N anchors, which would result in M^N comparisons (M is the size of the
+ * graph). Clearly this is computationally prohibitive.
+ *
+ * To overcome this, we impose some constraints on the multi-output patterns
+ * that we accept. We require that checking whether the pattern matches a
+ * subgraph would still be fully determined by a single node in the graph. To
+ * achieve this, we designate the first output in the pattern as the "main"
+ * output and assume that we can traverse up from this node to match the
+ * entire pattern.
+ *
+ * Corrolary 1: the order of outputs in the pattern matters!
+ * Corollary 2: patterns cannot contain any nodes not participating in the main
+ * output computation.
+ */
+std::vector<Match> TORCH_API
+findPatternMatches(const Graph& pattern, Graph& graph);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/ir/type_hashing.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <ATen/core/jit_type.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+struct HashType {
+  size_t operator()(const TypePtr& type) const;
+  size_t operator()(const c10::ConstTypePtr& type) const;
+};
+
+struct EqualType {
+  bool operator()(const TypePtr& a, const TypePtr& b) const;
+  bool operator()(const c10::ConstTypePtr& a, const c10::ConstTypePtr& b) const;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/code.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include <vector>
+
+#include <ATen/core/ivalue.h>
+#include <ATen/core/operator_name.h>
+#include <torch/csrc/jit/runtime/instruction.h>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+
+using Stack = std::vector<c10::IValue>;
+using DebugHandle = int64_t;
+
+class Function;
+
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct Code {
+  std::vector<Instruction> instructions_;
+  std::vector<DebugHandle> debug_handles_;
+  std::vector<c10::OperatorName> op_names_;
+  std::vector<int> operator_input_sizes_;
+  std::vector<std::function<void(Stack&)>> operators_;
+  std::vector<c10::IValue> constants_;
+  std::vector<c10::TypePtr> types_;
+  // TODO After we actually export CALL instructions we can remove this.
+  // We may need a two-stage importing scheme, where we firstly construct all
+  // function objects, and then append referenced function pointers. This could
+  // be done in parseMethods().
+  std::vector<mobile::Function*> functions_;
+  size_t register_size_ = 0; // Aggregated output size.
+  // initialized means operators_ array is filled with operators
+  bool initialized = false;
+};
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/debug_info.h

@@ -0,0 +1,57 @@
+#pragma once
+#include <c10/util/flat_hash_map.h>
+#include <caffe2/serialize/inline_container.h>
+#include <torch/csrc/jit/api/compilation_unit.h>
+#include <torch/csrc/jit/ir/scope.h>
+#include <torch/csrc/jit/serialization/source_range_serialization.h>
+
+namespace torch {
+namespace jit {
+/*
+ * MobileDebugTable:
+ * Deserializes debug_pkl and callstack_map records from PT model's zip archive
+ * and stores them in a map of debug handles to DebugInfoPair. Debug handles are
+ * unique per model and runtime, be in lite interpreter or delegate, an
+ * exception of BackendRuntimeException should raised using debug handles.
+ * getSourceDebugString method is responsible for translating debug
+ * handles to correspond debug information.
+ * This debug informatin includes stack trace of model level source code and
+ * module hierarchy where the exception occurred.
+ */
+class MobileDebugTable {
+ public:
+  MobileDebugTable() = default;
+  MobileDebugTable(
+      std::unique_ptr<caffe2::serialize::PyTorchStreamReader>& reader,
+      const std::shared_ptr<CompilationUnit>& cu);
+
+  template <typename It>
+  MobileDebugTable(It begin, It end) : callstack_ptr_map_(begin, end) {}
+
+  std::string getSourceDebugString(
+      const int64_t debug_handle,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getSourceDebugString(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getModuleHierarchyInfo(
+      const int64_t debug_handle,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getModuleHierarchyInfo(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+
+  const ska::flat_hash_map<int64_t, DebugInfoTuple>& getCallStackPtrMap()
+      const {
+    return callstack_ptr_map_;
+  }
+
+ private:
+  std::pair<std::string, std::string> getSourceDebugModuleHierarchyInfo(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  ska::flat_hash_map<int64_t, DebugInfoTuple> callstack_ptr_map_;
+};
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/file_format.h

@@ -0,0 +1,196 @@
+#pragma once
+
+#include <array>
+#include <cerrno>
+#include <cstddef>
+#include <cstring>
+#include <fstream>
+#include <istream>
+#include <memory>
+
+#include <c10/core/CPUAllocator.h>
+#include <c10/core/impl/alloc_cpu.h>
+#include <caffe2/serialize/read_adapter_interface.h>
+
+#if defined(HAVE_MMAP)
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+/**
+ * @file
+ *
+ * Helpers for identifying file formats when reading serialized data.
+ *
+ * Note that these functions are declared inline because they will typically
+ * only be called from one or two locations per binary.
+ */
+
+namespace torch {
+namespace jit {
+
+/**
+ * The format of a file or data stream.
+ */
+enum class FileFormat {
+  UnknownFileFormat = 0,
+  FlatbufferFileFormat,
+  ZipFileFormat,
+};
+
+/// The size of the buffer to pass to #getFileFormat(), in bytes.
+constexpr size_t kFileFormatHeaderSize = 8;
+constexpr size_t kMaxAlignment = 16;
+
+/**
+ * Returns the likely file format based on the magic header bytes in @p header,
+ * which should contain the first bytes of a file or data stream.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(const char* data) {
+  // The size of magic strings to look for in the buffer.
+  static constexpr size_t kMagicSize = 4;
+
+  // Bytes 4..7 of a Flatbuffer-encoded file produced by
+  // `flatbuffer_serializer.h`. (The first four bytes contain an offset to the
+  // actual Flatbuffer data.)
+  static constexpr std::array<char, kMagicSize> kFlatbufferMagicString = {
+      'P', 'T', 'M', 'F'};
+  static constexpr size_t kFlatbufferMagicOffset = 4;
+
+  // The first four bytes of a ZIP file.
+  static constexpr std::array<char, kMagicSize> kZipMagicString = {
+      'P', 'K', '\x03', '\x04'};
+
+  // Note that we check for Flatbuffer magic first. Since the first four bytes
+  // of flatbuffer data contain an offset to the root struct, it's theoretically
+  // possible to construct a file whose offset looks like the ZIP magic. On the
+  // other hand, bytes 4-7 of ZIP files are constrained to a small set of values
+  // that do not typically cross into the printable ASCII range, so a ZIP file
+  // should never have a header that looks like a Flatbuffer file.
+  if (std::memcmp(
+          data + kFlatbufferMagicOffset,
+          kFlatbufferMagicString.data(),
+          kMagicSize) == 0) {
+    // Magic header for a binary file containing a Flatbuffer-serialized mobile
+    // Module.
+    return FileFormat::FlatbufferFileFormat;
+  } else if (std::memcmp(data, kZipMagicString.data(), kMagicSize) == 0) {
+    // Magic header for a zip file, which we use to store pickled sub-files.
+    return FileFormat::ZipFileFormat;
+  }
+  return FileFormat::UnknownFileFormat;
+}
+
+/**
+ * Returns the likely file format based on the magic header bytes of @p data.
+ * If the stream position changes while inspecting the data, this function will
+ * restore the stream position to its original offset before returning.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(std::istream& data) {
+  FileFormat format = FileFormat::UnknownFileFormat;
+  std::streampos orig_pos = data.tellg();
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+  std::array<char, kFileFormatHeaderSize> header;
+  data.read(header.data(), header.size());
+  if (data.good()) {
+    format = getFileFormat(header.data());
+  }
+  data.seekg(orig_pos, data.beg);
+  return format;
+}
+
+/**
+ * Returns the likely file format based on the magic header bytes of the file
+ * named @p filename.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(const std::string& filename) {
+  std::ifstream data(filename, std::ifstream::binary);
+  return getFileFormat(data);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static void file_not_found_error() {
+  std::stringstream message;
+  message << "Error while opening file: ";
+  if (errno == ENOENT) {
+    message << "no such file or directory" << std::endl;
+  } else {
+    message << "error no is: " << errno << std::endl;
+  }
+  TORCH_CHECK(false, message.str());
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_file_content(
+    const char* filename) {
+#if defined(HAVE_MMAP)
+  int fd = open(filename, O_RDONLY);
+  if (fd < 0) {
+    // failed to open file, chances are it's no such file or directory.
+    file_not_found_error();
+  }
+  struct stat statbuf {};
+  fstat(fd, &statbuf);
+  size_t size = statbuf.st_size;
+  void* ptr = mmap(nullptr, statbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+  close(fd);
+  auto deleter = [statbuf](char* ptr) { munmap(ptr, statbuf.st_size); };
+  std::shared_ptr<char> data(reinterpret_cast<char*>(ptr), deleter);
+#else
+  FILE* f = fopen(filename, "rb");
+  if (f == nullptr) {
+    file_not_found_error();
+  }
+  fseek(f, 0, SEEK_END);
+  size_t size = ftell(f);
+  fseek(f, 0, SEEK_SET);
+  // make sure buffer size is multiple of alignment
+  size_t buffer_size = (size / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  fread(data.get(), size, 1, f);
+  fclose(f);
+#endif
+  return std::make_tuple(data, size);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_stream_content(
+    std::istream& in) {
+  // get size of the stream and reset to orig
+  std::streampos orig_pos = in.tellg();
+  in.seekg(orig_pos, std::ios::end);
+  const long size = in.tellg();
+  in.seekg(orig_pos, in.beg);
+
+  // read stream
+  // NOLINT make sure buffer size is multiple of alignment
+  size_t buffer_size = (size / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  in.read(data.get(), size);
+
+  // reset stream to original position
+  in.seekg(orig_pos, in.beg);
+  return std::make_tuple(data, size);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_rai_content(
+    caffe2::serialize::ReadAdapterInterface* rai) {
+  size_t buffer_size = (rai->size() / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  rai->read(
+      0, data.get(), rai->size(), "Loading ReadAdapterInterface to bytes");
+  return std::make_tuple(data, buffer_size);
+}
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/flatbuffer_loader.h

@@ -0,0 +1,136 @@
+#pragma once
+
+#include <istream>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <ATen/core/ivalue.h>
+#include <c10/core/Device.h>
+#include <c10/macros/Macros.h>
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/mobile/module.h>
+
+/**
+ * Defines the public API for loading flatbuffer-serialized mobile modules.
+ * Note that this header must not include or depend on flatbuffer-defined
+ * types, to avoid leaking those details to PyTorch clients.
+ */
+
+namespace torch {
+namespace jit {
+
+/// All non-copied data pointers provided to `parse_and_initialize_*` functions
+/// must be aligned to this boundary. Since the Module will point directly into
+/// the data, this alignment is necessary to ensure that certain types/structs
+/// are properly aligned.
+constexpr size_t kFlatbufferDataAlignmentBytes = 16;
+
+/// Maps file names to file contents.
+using ExtraFilesMap = std::unordered_map<std::string, std::string>;
+
+// On high level, to produce a Module from a file on disk, we need to go
+// through the follow steps:
+// 1. Read: Read the file from disk -> memory
+// 2. Deserialize: Parse the bytes to produce some in memory manipulable
+//    structure
+// 3. Module initialization: Produce mobile::Module out of the structure
+//    produced in 2.
+// Under this context, the structure described in 2. is the flatbuffer-defined
+// type mobile::serialization::Module. However, this step/type is not visible in
+// the public API.
+
+// Parse a mobile::Module from raw bytes.
+//
+// This function does steps 2+3 described above.
+//
+// Does not take ownership of `data`; if you want it to take ownership, see the
+// shared_ptr overload of this function.
+//
+// If should_copy_tensor_memory is true, then the returned module will NOT have
+// refences to `data`, so `data` can be freed immediately.
+//
+// If should_copy_tensor_memory is false, then returned module will have tensors
+// that points inside of `data`; the caller will need to make sure that `data`
+// outlives the returned Module. Also, `data` must be aligned to
+// kFlatbufferDataAlignmentBytes.
+TORCH_API mobile::Module parse_and_initialize_mobile_module(
+    void* data,
+    size_t size, // of `data`, in bytes.
+    c10::optional<at::Device> device = c10::nullopt,
+    ExtraFilesMap* extra_files = nullptr,
+    bool should_copy_tensor_memory = false);
+
+// Parse a mobile::Module from raw bytes.
+//
+// This function does steps 2+3 described above.
+//
+// The returned Module holds a reference to `data`, which must be aligned to
+// kFlatbufferDataAlignmentBytes.
+//
+// If you do not want the Module to hold a reference to `data`, see the raw
+// pointer overload of this function.
+TORCH_API mobile::Module parse_and_initialize_mobile_module(
+    std::shared_ptr<char> data,
+    size_t size, // of `data`, in bytes.
+    c10::optional<at::Device> device = c10::nullopt,
+    ExtraFilesMap* extra_files = nullptr);
+
+// Parse a mobile::Module from raw bytes, also returning JIT-related metadata.
+//
+// This is the same as parse_and_initialize_mobile_module() except that it also
+// extracts JIT source files and constants. Can be used to construct a
+// jit::Module.
+TORCH_API mobile::Module parse_and_initialize_mobile_module_for_jit(
+    void* data,
+    size_t size, // of `data`, in bytes.
+    ExtraFilesMap& jit_sources,
+    std::vector<IValue>& jit_constants,
+    c10::optional<at::Device> device = c10::nullopt,
+    ExtraFilesMap* extra_files = nullptr);
+
+// Load a mobile::Module from a filepath.
+//
+// This function does steps 1+2+3 described above.
+//
+// We need to have this as a convienience because Python API will need to wrap
+// this. C++ clients should use one of the versions of
+// parse_and_initialize_mobile_module() so they can manage the raw data more
+// directly.
+TORCH_API mobile::Module load_mobile_module_from_file(
+    const std::string& filename,
+    c10::optional<at::Device> device = c10::nullopt,
+    ExtraFilesMap* extra_files = nullptr);
+
+TORCH_API uint64_t get_bytecode_version(std::istream& in);
+TORCH_API uint64_t get_bytecode_version(const std::string& filename);
+TORCH_API uint64_t get_bytecode_version_from_bytes(char* flatbuffer_content);
+
+TORCH_API mobile::ModuleInfo get_module_info_from_flatbuffer(
+    char* flatbuffer_content);
+
+// The methods below are less efficient because it need to read the stream in
+// its entirity to a buffer
+TORCH_API mobile::Module load_mobile_module_from_stream_with_copy(
+    std::istream& in,
+    c10::optional<at::Device> device = c10::nullopt,
+    ExtraFilesMap* extra_files = nullptr);
+
+TORCH_API mobile::Module parse_flatbuffer_no_object(
+    std::shared_ptr<char> data,
+    size_t size,
+    c10::optional<at::Device> device);
+
+TORCH_API mobile::Module parse_and_initialize_mobile_module(
+    void* data,
+    size_t,
+    c10::optional<at::Device>,
+    ExtraFilesMap* extra_files,
+    bool should_copy_tensor_memory);
+
+// no op, TODO(qihan) delete
+TORCH_API bool register_flatbuffer_loader();
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/function.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <vector>
+
+#include <ATen/core/function.h>
+#include <ATen/core/function_schema.h>
+#include <ATen/core/ivalue.h>
+#include <torch/csrc/jit/mobile/code.h>
+
+namespace torch {
+namespace jit {
+enum OpCode : uint8_t;
+struct Instruction;
+struct OperatorString;
+
+namespace mobile {
+
+class TORCH_API Function : public torch::jit::Function {
+ public:
+  explicit Function(c10::QualifiedName name);
+  Function(
+      c10::QualifiedName name,
+      Code code,
+      at::optional<c10::FunctionSchema> schema);
+  void run(Stack& stack) override;
+  at::IValue operator()(Stack& stack);
+  void ensure_defined() override {}
+  size_t num_inputs() const override;
+  const c10::QualifiedName& qualname() const override;
+  bool call(Stack&, c10::function_ref<void(const mobile::Code&)>) override;
+
+  // NOTE: the APIs below is dangerous: if you call append_instruction with
+  // dbg_handle and then call it without; then the dbg_handle will become
+  // misaligned. Therefore only use ONE variant at time.
+  void append_instruction(OpCode op, int X, int N, int64_t dbg_handle);
+  void append_instruction(OpCode op, int X, int N);
+  void append_operator(
+      const std::string& name,
+      const std::string& overload_name,
+      const c10::optional<int>& num_specified_args);
+  void append_constant(const c10::IValue& constant);
+  void append_type(const c10::TypePtr& type);
+  void append_function(mobile::Function& func);
+
+  void set_register_size(size_t size);
+
+  int64_t get_debug_handle(size_t pc) const;
+  const Code& get_code() const;
+  Code& get_code();
+
+  torch::jit::Function& setSchema(c10::FunctionSchema schema) override;
+  bool hasSchema() const;
+  const c10::FunctionSchema& getSchema() const override;
+
+  // Returns the debug handle corresponding to where the execution
+  // is halted due to exception.
+  // If no corresponding debug handle is found then -1 is returned.
+  const std::vector<int64_t>& getExceptionDebugHandles() const;
+  static Function& registerFunc(
+      const std::string& qualified_name,
+      const std::vector<Instruction>& instructions,
+      const std::vector<c10::IValue>& constants,
+      const std::vector<c10::TypePtr>& types,
+      const size_t register_size);
+
+  // if not initialize, initialize by loading operators.
+  // return true of all op loaded, return false if some op is not found
+  // in the current runtime. Then, the ops that did not found will be filled
+  // in unsupported_op_names
+  bool initialize_operators(bool should_check_operators);
+
+ private:
+  c10::QualifiedName name_;
+  Code code_;
+  at::optional<c10::FunctionSchema> schema_; // (byte-code version 4+)
+};
+
+c10::optional<std::function<void(Stack&)>> makeOperatorFunction(
+    c10::OperatorName opname,
+    c10::optional<int> num_specified_args);
+
+TORCH_API std::string operator_str(const c10::OperatorName& opname);
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/import.h

@@ -0,0 +1,112 @@
+#pragma once
+#include <torch/csrc/jit/mobile/module.h>
+#include <torch/csrc/jit/mobile/parse_operators.h>
+
+#include <istream>
+#include <memory>
+
+#include <caffe2/serialize/file_adapter.h>
+
+namespace torch {
+namespace jit {
+using caffe2::serialize::FileAdapter;
+using caffe2::serialize::IStreamAdapter;
+using caffe2::serialize::ReadAdapterInterface;
+using ExtraFilesMap = std::unordered_map<std::string, std::string>;
+
+constexpr const char* kArchiveNameBytecode = "bytecode";
+constexpr const char* kArchiveNameConstants = "constants";
+constexpr const char* kArchiveNameVersion = "version";
+
+// The family of methods below load a serialized Mobile Module
+// into a mobile::Module object.
+TORCH_API mobile::Module _load_for_mobile(
+    std::istream& in,
+    c10::optional<at::Device> device,
+    ExtraFilesMap& extra_file,
+    uint64_t module_load_options = kDefaultMobileLoadOptions);
+
+TORCH_API mobile::Module _load_for_mobile(
+    const std::string& filename,
+    c10::optional<at::Device> device,
+    ExtraFilesMap& extra_files);
+
+TORCH_API mobile::Module _load_for_mobile(
+    std::unique_ptr<ReadAdapterInterface> rai,
+    c10::optional<c10::Device> device,
+    ExtraFilesMap& extra_files,
+    uint64_t module_load_options = kDefaultMobileLoadOptions);
+
+TORCH_API mobile::Module _load_for_mobile(
+    const std::string& filename,
+    c10::optional<at::Device> device,
+    ExtraFilesMap& extra_files,
+    uint64_t module_load_options);
+
+TORCH_API mobile::Module _load_for_mobile(
+    std::istream& in,
+    c10::optional<at::Device> device = c10::nullopt);
+
+TORCH_API mobile::Module _load_for_mobile(
+    const std::string& filename,
+    c10::optional<at::Device> device = c10::nullopt);
+
+TORCH_API mobile::Module _load_for_mobile(
+    std::unique_ptr<ReadAdapterInterface> rai,
+    c10::optional<c10::Device> device = c10::nullopt);
+
+/**
+ * Load only the contents of the "extra/" files whose names are
+ * passed in the map (extra_files). Populate the corresponding values
+ * with the contents of those files. Do not attempt to load the entire
+ * model, and stop once the extra files have been extracted.
+ *
+ * This API is needed to be able to load GPU models on linux CPU
+ * machines and extract only the extra files so that we can inspect
+ * the metadata that was added to the .ptl archive when it was
+ * generated.
+ *
+ */
+void _load_extra_only_for_mobile(
+    const std::string& filename,
+    c10::optional<at::Device> device,
+    ExtraFilesMap& extra_files);
+
+// Currently used by both mobile/import.cpp and model_compatibility.cpp.
+// Should be removed after model_compatibility.cpp start using simplified
+// version type_resolver and obj_loader.
+at::TypePtr resolveTypeNameMobile(
+    const c10::QualifiedName& qn,
+    std::shared_ptr<CompilationUnit> compilation_unit);
+c10::StrongTypePtr typeResolverMobile(
+    const c10::QualifiedName& qn,
+    const std::shared_ptr<CompilationUnit>& compilation_unit);
+c10::intrusive_ptr<c10::ivalue::Object> objLoaderMobile(
+    const at::StrongTypePtr& type,
+    const at::IValue& input,
+    mobile::CompilationUnit& mobile_compilation_unit);
+
+// Given a reader, which has access to a model file,
+// return true if there exists tensors in `bytecode` archive
+bool isTensorInBytecodeArchive(
+    caffe2::serialize::PyTorchStreamReader& stream_reader);
+
+namespace mobile {
+
+/**
+ * Given a torch::jit::mobile::Module, return a set of operator names
+ * (with overload name) that are used by any method in this mobile
+ * Mobile. This method runs through the bytecode for all methods
+ * in the specified model (module), and extracts all the root
+ * operator names. Root operators are operators that are called
+ * directly by the model (as opposed to non-root operators, which
+ * may be called transitively by the root operators).
+ *
+ */
+TORCH_API std::set<std::string> _export_operator_list(
+    torch::jit::mobile::Module& module);
+
+} // namespace mobile
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/import_data.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <ATen/core/TensorBase.h>
+#include <c10/core/Device.h>
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/mobile/module.h>
+
+#include <istream>
+#include <map>
+#include <string>
+
+namespace torch {
+namespace jit {
+
+/**
+ * Loads named parameters from the serialized data in @p in.
+ *
+ * Calls #TORCH_CHECK() if the data format is not recognized.
+ */
+TORCH_API std::map<std::string, at::Tensor> _load_parameters(
+    std::istream& in,
+    c10::optional<at::Device> device = c10::nullopt);
+
+/**
+ * Loads named parameters from the serialized data in @p filename.
+ *
+ * Calls #TORCH_CHECK() if the data format is not recognized.
+ */
+TORCH_API std::map<std::string, at::Tensor> _load_parameters(
+    const std::string& filename,
+    c10::optional<at::Device> device = c10::nullopt);
+
+// NOTE: Please prefer using _load_parameters over using the function below.
+TORCH_API std::map<std::string, at::Tensor> mobile_module_to_parameter_map(
+    const mobile::Module& module);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/method.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <ATen/core/ivalue.h>
+#include <torch/csrc/jit/mobile/function.h>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+
+class Module;
+
+struct TORCH_API Method {
+  Method(const Module* owner, Function* function);
+
+  void run(Stack& stack) const;
+  void run(Stack&& stack) const {
+    run(stack);
+  }
+
+  c10::IValue operator()(std::vector<c10::IValue> stack) const;
+
+  const std::string& name() const {
+    return function_->name();
+  }
+
+  int64_t get_debug_handle(size_t pc) const {
+    return function_->get_debug_handle(pc);
+  }
+
+  Function& function() const {
+    return *function_;
+  }
+
+ private:
+  // Methods are uniquely owned by a single module.
+  // This raw pointer allows referencing the module
+  const Module* owner_;
+
+  // Underlying unbound function
+  Function* function_;
+};
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/module.h

@@ -0,0 +1,197 @@
+#pragma once
+#include <ATen/core/jit_type.h>
+#include <torch/csrc/jit/mobile/debug_info.h>
+#include <torch/csrc/jit/mobile/function.h>
+#include <torch/csrc/jit/mobile/method.h>
+#include <torch/csrc/jit/mobile/quantization.h>
+
+#include <utility>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+using Stack = std::vector<c10::IValue>;
+
+// A CompilationUnit object is the one that gets executed by the lite
+// interpreter.
+//
+// A CompilationUnit object contains a list of Method Objects. These are methods
+// that appear in the original PyTorch Model. These method correspond to Python
+// member functions of the Model class.
+//
+// Methods in turn contain a Function, and a back-pointer to the Module that
+// owns this Method instance.
+//
+// A Function contains a Code Object (code_) which is defined in interpreter.h
+//
+// A Code object contains the following:
+//
+// std::vector<Instruction> instructions_;
+// std::vector<c10::OperatorName> op_names_;
+// std::vector<std::function<void(Stack&)>> operators_;
+// std::vector<c10::IValue> constants_;
+// std::vector<c10::TypePtr> types_;
+// size_t register_size_; // Aggregated output size.
+//
+class CompilationUnit {
+ public:
+  void register_function(std::unique_ptr<Function> fn);
+  std::vector<std::unique_ptr<Function>>& methods() {
+    return methods_;
+  }
+  const std::vector<std::unique_ptr<Function>>& methods() const {
+    return methods_;
+  }
+  Function* find_function(const c10::QualifiedName& qn);
+  const Function* find_function(const c10::QualifiedName& qn) const;
+
+  void unsafeRemoveFunction(const int64_t index) {
+    methods_.erase(methods_.begin() + index);
+  }
+
+ private:
+  std::vector<std::unique_ptr<Function>> methods_;
+};
+
+// A Torch Mobile Module is a representation of the model (trained in case
+// of inference). A Mobile Module contains
+//
+// 1. data (object_)
+// 2. metadata (optional) about the model (metadata_ from the metadata.pkl
+//    file added after training)
+// 3. Compilation Unit (cu_)
+//
+class TORCH_API Module {
+ public:
+  Module(
+      c10::intrusive_ptr<c10::ivalue::Object> object,
+      std::shared_ptr<CompilationUnit> cu)
+      : object_(std::move(object)), cu_(std::move(cu)) {}
+  Module() = default;
+  Method get_method(const std::string& method_name) const;
+  template <typename... Types>
+  c10::IValue run_method(const std::string& method_name, Types&&... args) {
+    return get_method(method_name)({IValue(std::forward<Types>(args))...});
+  }
+  c10::IValue forward(std::vector<c10::IValue> inputs) {
+    return get_method("forward")(std::move(inputs));
+  }
+  c10::optional<Method> find_method(const std::string& basename) const;
+
+  const std::string name() const {
+    return object_->name();
+  }
+  const std::vector<at::IValue>& slots() const {
+    return object_->slots();
+  }
+  const c10::intrusive_ptr<c10::ivalue::Object> _ivalue() const {
+    return object_;
+  }
+  const std::vector<at::Tensor> parameters() const;
+  const std::map<std::string, at::Tensor> named_parameters() const;
+  std::string get_forward_method_debug_info(int64_t debug_handle) const;
+  std::string getModuleHierarchy(const int64_t debug_handle) const;
+  std::string getCallStack(const int64_t debug_handle) const;
+  /// Enables "training" mode.
+  void train(bool on = true);
+  /// Calls train(false) to enable "eval" mode.
+  void eval() {
+    train(/*on=*/false);
+  }
+  /// True if the module is in training mode.
+  bool is_training() const;
+  const std::unordered_map<std::string, std::string> getMetadata() const {
+    return metadata_;
+  }
+  void setMetadata(
+      const std::unordered_map<std::string, std::string>& metadata) {
+    metadata_ = metadata;
+  }
+  const std::vector<Method> get_methods() const;
+
+  c10::IValue attr(const std::string& name, c10::IValue or_else) const {
+    if (auto r = object_->type()->findAttributeSlot(name)) {
+      return object_->getSlot(*r);
+    }
+    if (auto r = object_->type()->findConstantSlot(name)) {
+      return object_->type()->getConstant(*r);
+    }
+    return or_else;
+  }
+
+  void setDebugTable(MobileDebugTable&& debug_table) {
+    debug_table_ = std::move(debug_table);
+  }
+  const MobileDebugTable& getDebugTable() const {
+    return debug_table_;
+  }
+
+  void setHasDebugHandles(bool has_debug_handles) {
+    has_debug_handles_ = has_debug_handles;
+  }
+
+  bool hasDebugHandles() const {
+    return has_debug_handles_;
+  }
+
+  const CompilationUnit& compilation_unit() const {
+    return *cu_.get();
+  }
+
+  void set_delete_memory(std::shared_ptr<char> delete_mem) {
+    mem_to_delete_ = std::move(delete_mem);
+  }
+
+  void set_min_operator_version(int64_t version) {
+    min_operator_version_ = version;
+  }
+
+  int64_t min_operator_version() const {
+    return min_operator_version_;
+  }
+
+  void set_bytecode_version(int64_t version) {
+    bytecode_version_ = version;
+  }
+
+  int64_t bytecode_version() const {
+    return bytecode_version_;
+  }
+
+ private:
+  friend class quantization::PTQQuanizationHelper;
+
+  bool compareMethodSchemas(
+      const std::string& name_1,
+      const std::string& name_2);
+
+  void unsafeRemoveMethod(const std::string& basename);
+
+  void unsafeCopyMethod(
+      const std::string& new_method_name,
+      const Function& to_be_copied);
+
+  c10::intrusive_ptr<c10::ivalue::Object> object_;
+  std::unordered_map<std::string, std::string> metadata_;
+  std::shared_ptr<CompilationUnit> cu_;
+  MobileDebugTable debug_table_;
+  bool has_debug_handles_ = false;
+  int64_t min_operator_version_ = 4;
+  int64_t bytecode_version_ = 4;
+
+  // Extra handle for the module to delete when itself is deleted
+  std::shared_ptr<char> mem_to_delete_;
+};
+
+struct TORCH_API ModuleInfo {
+  uint64_t bytecode_version;
+  uint64_t operator_version;
+  std::unordered_map<std::string, int> opname_to_num_args;
+  std::unordered_set<std::string> function_names;
+  std::unordered_set<std::string> type_names;
+};
+TORCH_API ModuleInfo get_module_info(const mobile::Module& module);
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/observer.h

@@ -0,0 +1,110 @@
+#pragma once
+
+#include <c10/util/ThreadLocalDebugInfo.h>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+namespace torch {
+
+class MobileDebugInfo : public c10::DebugInfoBase {
+ public:
+  const std::string& getModelName() {
+    return model_name_;
+  }
+
+  void setModelName(const std::string& model_name) {
+    model_name_ = model_name;
+  }
+
+  const std::string& getMethodName() {
+    return method_name_;
+  }
+
+  void setMethodName(const std::string& method_name) {
+    method_name_ = method_name;
+  }
+
+  size_t getOpIdx() {
+    return op_idx_;
+  }
+
+  void setOpIdx(size_t op_idx) {
+    op_idx_ = op_idx;
+  }
+
+ private:
+  std::string model_name_;
+  std::string method_name_;
+  // TODO: Kimish
+  // If we launch a thread such as for at::launch, interepter continuation
+  // and if the caching allocator is enabled in the base thread
+  // then, in order to propagate this information, that is caching allocator
+  // is enabled, across thread boundaries we can use the mechanism provided
+  // by ThreadLocalDebugInfo
+  // Once the thread local MobileDebugInfo is accessible in the launched
+  // thread, it can be accessed in that thread and that thread can set
+  // its own thread local CachingAllocatorInfo.
+  // However, we cannot expect every launched thread to extract and set
+  // its own thread local copy of CachingAllocatorInfo.
+  // But this can be done in lite interpreter, where in the run method
+  // it can do info =
+  // c10::ThreadLocalDebugInfo::get(c10::DebugInfoKind::MOBILE_RUNTIME_INFO))
+  // .get_caching_allocator_info();
+  // GetThreadLocalCachingAllocatorInfo() = info;
+  // Other option is to have MobileDebugInfo itself be the place where thread
+  // local copy of CachingAllocatorInfo is stored. Then
+  // DefaultMobileCPUAllocator inspects this to decide if to use
+  // CachingAllocator. However, current lite interpreter does not support FORK,
+  // thus from the run method of lite interpreter we are not really gonna launch
+  // another instance of lite interpreter in a different thread. So for now not
+  // getting bothered about passing CachingAllocatorInfo across thread
+  // boundaries. c10::CachingAllocatorInfo caching_allocator_info;
+  size_t op_idx_ = 0;
+};
+
+class MobileModuleObserver {
+ public:
+  virtual ~MobileModuleObserver() = default;
+
+  virtual void onEnterRunMethod(const int32_t) {}
+  virtual void onExitRunMethod(
+      const std::unordered_map<std::string, std::string>&,
+      const std::string&,
+      const int32_t) {}
+  virtual void onFailRunMethod(
+      const std::unordered_map<std::string, std::string>&,
+      const std::string&,
+      const int32_t,
+      const char*) {}
+  virtual void onEnterLoadModel(const int32_t) {}
+  virtual void onExitLoadModel(
+      const int32_t,
+      const std::unordered_map<std::string, std::string>&) {
+  } // key: filename, value: file content
+  virtual void onFailLoadModel(const int32_t, const char*) {}
+  virtual void onFailLoadModel(
+      const int32_t,
+      const char*,
+      const std::unordered_map<std::string, std::string>&) {}
+  virtual std::vector<std::string> getDefaultExtraFiles() = 0;
+  virtual std::unordered_map<std::string, std::string> processMetadataFromExtra(
+      const std::unordered_map<std::string, std::string>&) = 0;
+};
+
+class MobileObserverConfig {
+ public:
+  void setModuleObserver(std::unique_ptr<MobileModuleObserver> reporter) {
+    module_observer_ = std::move(reporter);
+  }
+  MobileModuleObserver* getModuleObserver() {
+    return module_observer_.get();
+  }
+
+ private:
+  std::unique_ptr<MobileModuleObserver> module_observer_;
+};
+
+MobileObserverConfig& observerConfig();
+
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/prim_ops_registery.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <ATen/core/ivalue.h>
+#include <functional>
+#include <vector>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+
+using Stack = std::vector<c10::IValue>;
+
+void registerPrimOpsFunction(
+    const std::string& name,
+    const std::function<void(Stack&)>& fn);
+
+bool hasPrimOpsFn(const std::string& name);
+
+std::function<void(Stack&)>& getPrimOpsFn(const std::string& name);
+
+class prim_op_fn_register {
+ public:
+  prim_op_fn_register(
+      const std::string& name,
+      const std::function<void(Stack&)>& fn) {
+    registerPrimOpsFunction(name, fn);
+  }
+};
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/profiler_edge.h

@@ -0,0 +1,119 @@
+#pragma once
+#include <torch/csrc/autograd/profiler_kineto.h>
+#include <torch/csrc/jit/mobile/module.h>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+
+// If we dont have kineto available then edge profiler does not
+// work since it relies on Kineto
+#ifdef USE_KINETO
+class TORCH_API KinetoEdgeCPUProfiler {
+ public:
+  // This profiler only profiles KINETO events
+  // No GPU_FALLBACK or NVTX
+  /*
+   * @param m is the instance of mobile Module which is being profiled.
+   *        Note that this implies that KinetoEdgeCPUProfiler can be used
+   *        to profile specific Module (see usage below), unliked ProfilerKineto
+   *        which can profile pytorch runtime in arbitrary scope.
+   * @param fname is the name of the file to which chrome trace is written.
+   * @param report_input_shapes: whether to record shapes of op's inputs.
+   * @param with_stack: whether to record model's python stacktrace for the op.
+   * @param with_flops: whether to report flops corresponding to the op.
+   * @param with_modules: whether to report original python module
+   *        hierarchy to which the op belongs.
+   * @param events
+   * @param adjust_vulkan_timestamps: whether to adjust vulkan timestamps from
+   *        query pool to align with cpu event times
+   *
+   * Usage pattern for this profiler must be as follows:
+   *
+   * {
+   *   KinetoEdgeCPUProfiler(m, filename, args);
+   *   m.forward(...);
+   * }
+   *
+   * The reason being that KinetoEdgeCPUProfiler has a dependency on Module
+   * and thus it must not outlive it.
+   *
+   * Thus, when KinetoEdgeCPUProfiler is used as RAII to do profiling
+   * within certain scope. In that scope, the captured reference to
+   * Module will outlive KinetoEdgeCPUProfiler. This is gauranteed because
+   * KinetoEdgeCPUProfiler must be constructed later than Module, on stack.
+   *
+   * An example of the anti-pattern and wrong usage is:
+   *
+   * std::shared_ptr<KinetoMobileCPUProfiler> profiler(m, filename, args);
+   * m.forward(...);
+   *
+   * Since KinetoEdgeCPUProfiler object would then be constructed on heap
+   * with its lifetime managed manually or via smart pointers.
+   */
+  KinetoEdgeCPUProfiler(
+      const torch::jit::mobile::Module& m,
+      const std::string& fname,
+      const bool report_input_shapes = false,
+      const bool profile_memory = false,
+      const bool with_stack = false,
+      const bool with_flops = false,
+      const bool with_modules = false,
+      std::vector<std::string> events = {},
+      const bool adjust_vulkan_timestamps = false);
+
+  const std::unique_ptr<torch::autograd::profiler::ProfilerResult>&
+  disableProfiler();
+  const std::unique_ptr<torch::autograd::profiler::ProfilerResult>&
+  getProfilerResult();
+  void recordBackendEvent(
+      const int64_t start_time_us,
+      const int64_t end_time_us,
+      const int64_t debug_handle,
+      const std::string& event_name,
+      const std::string& backend_name);
+  void recordBackendMemoryEvent(
+      void* ptr,
+      int64_t alloc_size,
+      size_t total_allocated,
+      size_t total_reserved,
+      c10::Device device);
+
+  ~KinetoEdgeCPUProfiler();
+
+ private:
+  /*
+   * We store a reference to Module to make such dependency explicit, since
+   * a Module reference is already stored in a functor.
+   */
+  const mobile::Module& m_;
+  std::string trace_file_name_;
+  std::unique_ptr<torch::autograd::profiler::ProfilerResult> profiler_result_;
+};
+
+TORCH_API KinetoEdgeCPUProfiler* getCurrentEdgeProfiler();
+
+#define RECORD_BACKEND_EVENT_TO_EDGE_PROFILER(                               \
+    start_time_us, end_time_us, debug_handle, event_name, backend_name)      \
+  if (mobile::getCurrentEdgeProfiler()) {                                    \
+    mobile::getCurrentEdgeProfiler()->recordBackendEvent(                    \
+        start_time_us, end_time_us, debug_handle, event_name, backend_name); \
+  }
+
+#define RECORD_BACKEND_MEMORY_EVENT_TO_EDGE_PROFILER(              \
+    ptr, alloc_size, total_allocated, total_reserved, device)      \
+  if (mobile::getCurrentEdgeProfiler()) {                          \
+    mobile::getCurrentEdgeProfiler()->recordBackendMemoryEvent(    \
+        ptr, alloc_size, total_allocated, total_reserved, device); \
+  }
+#else
+
+#define RECORD_BACKEND_EVENT_TO_EDGE_PROFILER( \
+    start_time_us, end_time_us, debug_handle, event_name, backend_name)
+
+#define RECORD_BACKEND_MEMORY_EVENT_TO_EDGE_PROFILER( \
+    ptr, alloc_size, total_allocated, total_reserved, device)
+#endif
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/promoted_prim_ops.h

@@ -0,0 +1,63 @@
+#pragma once
+#include <torch/csrc/jit/mobile/prim_ops_registery.h>
+#include <torch/csrc/jit/mobile/register_ops_common_utils.h>
+
+namespace torch {
+namespace jit {
+
+void tupleIndex(Stack& stack);
+
+void raiseException(Stack& stack);
+
+void is(Stack& stack);
+
+void unInitialized(Stack& stack);
+
+void isNot(Stack& stack);
+
+void aten_format(Stack& stack);
+
+void size(Stack& stack);
+
+void sym_size(Stack& stack);
+
+void sym_size_int(Stack& stack);
+
+void sym_stride_int(Stack& stack);
+
+void sym_numel(Stack& stack);
+
+void sym_storage_offset(Stack& stack);
+
+void sym_stride(Stack& stack);
+
+void device(Stack& stack);
+
+void device_with_index(Stack& stack);
+
+void dtype(Stack& stack);
+
+void layout(Stack& stack);
+
+void toPrimDType(Stack& stack);
+
+void dim(Stack& stack);
+
+void _not(Stack& stack);
+
+void boolTensor(Stack& stack);
+
+void toList(Stack& stack);
+
+void numToTensorScalar(Stack& stack);
+
+void isCuda(Stack& stack);
+
+void numToTensorBool(Stack& stack);
+
+void dictIndex(Stack& stack);
+
+void raiseExceptionWithMessage(Stack& stack);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/quantization.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <c10/macros/Export.h>
+#include <string>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+class Module;
+namespace quantization {
+/*
+ * Device side PTQ API.
+ * Once the model has been prepared for quantization on server side, such model
+ * is sent to device. On device side the model is further trained. At the end of
+ * the training, before the model is readied for inference, we need to quantize
+ * the model.
+ * Usage of this API is as follows.
+ * PTQQuanizationHelper ptq_helper;
+ * ptq_helper.quantize_dynamic(m, "forward");
+ * Args:
+ * m: Captured by reference, an instance of mobile::Module. This module will be
+ * mutated in place to replace its <method_name> method with quantized
+ * equivalent. method:name: Name of the method to be quantized. AOT preparation
+ * for quantization must also have been done for this method. Returns: In place
+ * mutated `m` whose size should be smaller due to weight quantization and whose
+ * <method_name> method should use quantized ops
+ */
+class TORCH_API PTQQuanizationHelper {
+ public:
+  PTQQuanizationHelper() = default;
+  void quantize_dynamic(
+      torch::jit::mobile::Module& m,
+      const std::string& method_name);
+};
+} // namespace quantization
+} // namespace mobile
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/register_ops_common_utils.h

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <ATen/Context.h>
+#include <ATen/NativeFunctions.h>
+#include <ATen/core/ivalue.h>
+#include <ATen/core/stack.h>
+#include <torch/csrc/jit/runtime/jit_exception.h>
+#include <torch/csrc/jit/runtime/vararg_functions.h>
+
+namespace torch {
+namespace jit {
+
+inline void noop(Stack& n) {}
+
+int64_t normalizeIndex(int64_t idx, int64_t list_size);
+
+// reference function THPVariable_to in python_variable_methods.cpp
+static C10_UNUSED at::Tensor to_dispatch(
+    at::Tensor self,
+    c10::optional<at::Device> device,
+    c10::optional<at::ScalarType> scalarType,
+    bool non_blocking,
+    bool copy) {
+  if (device && device->is_cuda()) {
+    at::globalContext().lazyInitCUDA();
+  }
+  if (!device && !scalarType && !copy) {
+    return self;
+  } else if (!device) {
+    return self.to(*scalarType, non_blocking, copy);
+  } else if (!scalarType) {
+    return self.to(*device, non_blocking, copy);
+  } else {
+    return self.to(*device, *scalarType, non_blocking, copy);
+  }
+}
+
+// Convert the tensor pointed to by \p data to a nested list. \p dim is the
+// number of dimensions in the tensor and \p cur_dim is the dimension being
+// processed by the current invocation. \p ty is the expected output IR type of
+// the operation. \p is the scalar type of \p data. \p sizes and \p strides are
+// the sizes and strides of the tensor operand and \p element_size is the size
+// in bytes of one tensor element.
+IValue tensorToListRecursive(
+    char* data,
+    int64_t cur_dim,
+    int64_t num_tensor_dims,
+    at::TypePtr ty,
+    at::ScalarType scalar_ty,
+    at::IntArrayRef sizes,
+    at::IntArrayRef strides,
+    size_t element_size);
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/type_parser.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <ATen/core/dynamic_type.h>
+#include <ATen/core/jit_type.h>
+#include <unordered_set>
+
+namespace c10 {
+
+class TORCH_API TypeParser {
+ public:
+  explicit TypeParser(std::string pythonStr);
+  explicit TypeParser(std::vector<std::string>& pythonStrs);
+
+  TypePtr parse();
+  std::vector<TypePtr> parseList();
+  static const std::unordered_set<std::string>& getNonSimpleType();
+  static const std::unordered_set<std::string>& getCustomType();
+  std::unordered_set<std::string> getContainedTypes();
+
+ private:
+  TypePtr parseNamedTuple(const std::string& qualified_name);
+  TypePtr parseCustomType();
+  TypePtr parseTorchbindClassType();
+  TypePtr parseNonSimple(const std::string& token);
+
+  void expect(const char* s);
+  void expectChar(char c);
+  template <typename T>
+  TypePtr parseSingleElementType();
+
+  void lex();
+
+  std::string next();
+  c10::string_view nextView();
+  void advance();
+  C10_NODISCARD c10::string_view cur() const;
+
+  std::string pythonStr_;
+  size_t start_;
+  c10::string_view next_token_;
+
+  // Used for parsing string list
+  std::vector<std::string> pythonStrs_;
+  std::unordered_map<std::string, c10::TypePtr> str_type_ptr_map_;
+
+  // Store all contained types when parsing a string
+  std::unordered_set<std::string> contained_types_;
+};
+
+TORCH_API TypePtr parseType(const std::string& pythonStr);
+
+TORCH_API std::vector<TypePtr> parseType(std::vector<std::string>& pythonStr);
+
+} // namespace c10

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/upgrader_mobile.h

@@ -0,0 +1,43 @@
+#pragma once
+
+// #include <ATen/core/ivalue.h>
+#include <ATen/core/ivalue_inl.h>
+
+#include <torch/csrc/jit/mobile/code.h>
+#include <torch/csrc/jit/mobile/function.h>
+#include <torch/csrc/jit/serialization/import_export_functions.h>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+namespace torch {
+namespace jit {
+struct Instruction;
+struct Upgrader {
+  int min_version;
+  int max_version;
+  std::string upgrader_name;
+  int index;
+};
+
+// From operator_versions.yaml
+TORCH_API const std::unordered_map<std::string, std::vector<Upgrader>>
+getOperatorVersionMapForMobile();
+
+struct OperatorString {
+  const std::string name;
+  const std::string overload_name;
+  const c10::optional<int> num_specified_args;
+};
+
+struct ByteCodeFunctionWithOperator {
+  mobile::Function& function;
+  std::vector<OperatorString> operators;
+};
+
+TORCH_API const std::vector<ByteCodeFunctionWithOperator>&
+getUpgraderBytecodeList();
+
+} // namespace jit
+} // namespace torch

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/init.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <torch/csrc/utils/pybind.h>
+
+namespace torch::jit {
+
+void initJITBindings(PyObject* module);
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/module_python.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+#include <torch/csrc/jit/api/module.h>
+#include <torch/csrc/utils/pybind.h>
+
+namespace py = pybind11;
+
+namespace torch::jit {
+
+inline c10::optional<Module> as_module(py::handle obj) {
+  static py::handle ScriptModule =
+      py::module::import("torch.jit").attr("ScriptModule");
+  if (py::isinstance(obj, ScriptModule)) {
+    return py::cast<Module>(obj.attr("_c"));
+  }
+  return c10::nullopt;
+}
+
+inline c10::optional<Object> as_object(py::handle obj) {
+  static py::handle ScriptObject =
+      py::module::import("torch").attr("ScriptObject");
+  if (py::isinstance(obj, ScriptObject)) {
+    return py::cast<Object>(obj);
+  }
+
+  static py::handle RecursiveScriptClass =
+      py::module::import("torch.jit").attr("RecursiveScriptClass");
+  if (py::isinstance(obj, RecursiveScriptClass)) {
+    return py::cast<Object>(obj.attr("_c"));
+  }
+  return c10::nullopt;
+}
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/pybind.h

@@ -0,0 +1,213 @@
+#pragma once
+
+#include <torch/csrc/python_headers.h>
+
+#include <ATen/core/ivalue.h>
+#include <ATen/core/symbol.h>
+#include <c10/util/irange.h>
+#include <torch/csrc/DynamicTypes.h>
+#include <torch/csrc/THP.h>
+#include <torch/csrc/autograd/variable.h>
+#include <torch/csrc/jit/frontend/tracer.h>
+#include <torch/csrc/jit/python/pybind_utils.h>
+#include <torch/csrc/utils/pybind.h>
+
+#include <pybind11/functional.h>
+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+
+namespace py = pybind11;
+
+namespace torch::jit {
+
+// This is a variant of shared_ptr that "sees through" a wrapper.
+// We use it to convert Value, Node, Block and node to "wrapped" Python
+// values. When we destruct the C++ object, the wrapper's pointer will
+// be set to 0 and any future dereferencing will throw. We need this
+// because the Python objects may hang around after the C++ object
+// has already been destroyed.
+// This also needs the magic type_caster below, which is from the
+// workaround offered in https://github.com/pybind/pybind11/issues/2751
+template <typename T>
+class unwrapping_shared_ptr {
+  static_assert(
+      std::is_same<T, torch::jit::Value>::value ||
+          std::is_same<T, torch::jit::Node>::value ||
+          std::is_same<T, torch::jit::Block>::value,
+      "unwrapping type only defined for Graph object types");
+
+ private:
+  std::shared_ptr<torch::jit::Wrap<T>> impl;
+
+ public:
+  unwrapping_shared_ptr() : impl({}) {}
+  explicit unwrapping_shared_ptr(T* p) : impl(p->wrap()) {
+    impl->clear_cb = &clear_registered_instances;
+  }
+  T* get() const {
+    if (!impl->elem) {
+      throw std::logic_error("has been invalidated");
+    }
+    return impl->elem;
+  }
+  // we need to disable the overloaded & for PyBind11 < 2.3 due.
+  // see https://github.com/pybind/pybind11/pull/1435
+#if (PYBIND11_VERSION_MAJOR > 2) || \
+    ((PYBIND11_VERSION_MAJOR == 2) && (PYBIND11_VERSION_MINOR >= 3))
+  T** operator&() {
+    if (!impl->elem) {
+      throw std::logic_error("has been invalidated");
+    }
+    return &(impl->elem);
+  }
+#endif
+};
+
+} // namespace torch::jit
+
+PYBIND11_DECLARE_HOLDER_TYPE(T, torch::jit::unwrapping_shared_ptr<T>, true);
+
+namespace pybind11::detail {
+
+#define CREATE_UNWRAPPING_CASTER(Class)                                                   \
+  template <>                                                                             \
+  struct type_caster<Class> : public type_caster_base<Class> {                            \
+   public:                                                                                \
+    using type = Class;                                                                   \
+    using holder_type = torch::jit::unwrapping_shared_ptr<Class>;                         \
+                                                                                          \
+    bool load(handle src, bool convert) {                                                 \
+      return load_impl<type_caster<Class>>(src, convert);                                 \
+    }                                                                                     \
+                                                                                          \
+    explicit operator type*() {                                                           \
+      return static_cast<type*>(value);                                                   \
+    }                                                                                     \
+    explicit operator type&() {                                                           \
+      return *static_cast<type*>(value);                                                  \
+    }                                                                                     \
+                                                                                          \
+   protected:                                                                             \
+    friend class type_caster_generic;                                                     \
+                                                                                          \
+    bool load_value(value_and_holder&& v_h) {                                             \
+      if (v_h.holder_constructed()) {                                                     \
+        value = v_h.template holder<holder_type>().get();                                 \
+        return true;                                                                      \
+      } else {                                                                            \
+        throw cast_error(                                                                 \
+            "Unable to cast from non-held to held instance (#Class& to Holder<#Class>)"); \
+      }                                                                                   \
+    }                                                                                     \
+  }
+
+CREATE_UNWRAPPING_CASTER(torch::jit::Node);
+CREATE_UNWRAPPING_CASTER(torch::jit::Value);
+CREATE_UNWRAPPING_CASTER(torch::jit::Block);
+
+#undef CREATE_UNWRAPPING_CASTER
+
+template <>
+struct type_caster<torch::jit::IValue> {
+ public:
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  PYBIND11_TYPE_CASTER(torch::jit::IValue, _("IValue"));
+
+  bool load(handle src, bool) {
+    try {
+      value = torch::jit::toTypeInferredIValue(src);
+      return true;
+    } catch (std::exception& e) {
+      return false;
+    }
+  }
+
+  static handle cast(
+      torch::jit::IValue src,
+      return_value_policy /* policy */,
+      handle /* parent */) {
+    return torch::jit::toPyObject(std::move(src)).release();
+  }
+};
+
+template <>
+struct type_caster<torch::jit::Symbol> {
+ public:
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  PYBIND11_TYPE_CASTER(torch::jit::Symbol, _("Symbol"));
+
+  bool load(handle src, bool) {
+    // TODO: Is there a way to py::cast that doesn't raise an exception on
+    // failure?  Can we catch pybind11::cast_error here instead?
+    std::string src_str;
+    try {
+      src_str = py::cast<std::string>(src);
+    } catch (std::exception& e) {
+      return false;
+    }
+    value = torch::jit::Symbol::fromQualString(src_str);
+    return true;
+  }
+
+  static handle cast(
+      torch::jit::Symbol src,
+      return_value_policy /* policy */,
+      handle /* parent */) {
+    return py::cast(std::string(src.toQualString()), return_value_policy::copy)
+        .release();
+  }
+};
+
+template <>
+struct type_caster<torch::jit::AttributeKind> {
+ public:
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  PYBIND11_TYPE_CASTER(torch::jit::AttributeKind, _("AttributeKind"));
+
+  bool load(handle src, bool) {
+    return false;
+  }
+
+  static handle cast(
+      torch::jit::AttributeKind src,
+      return_value_policy /* policy */,
+      handle /* parent */) {
+    return py::cast(
+               std::string(torch::jit::toString(src)),
+               return_value_policy::copy)
+        .release();
+  }
+};
+
+// See https://github.com/pybind/pybind11/issues/637
+using ListCasterBase = pybind11::detail::
+    list_caster<std::vector<torch::jit::Node*>, torch::jit::Node*>;
+template <>
+struct type_caster<std::vector<torch::jit::Node*>> : ListCasterBase {
+  static handle cast(
+      const std::vector<torch::jit::Node*>& src,
+      return_value_policy,
+      handle parent) {
+    return ListCasterBase::cast(src, return_value_policy::reference, parent);
+  }
+  static handle cast(
+      const std::vector<torch::jit::Node*>* src,
+      return_value_policy pol,
+      handle parent) {
+    return cast(*src, pol, parent);
+  }
+};
+
+} // namespace pybind11::detail
+
+namespace torch::jit {
+
+static inline py::tuple tuple_tail(const py::tuple& tup) {
+  py::tuple r(tup.size() - 1);
+  for (const auto i : c10::irange(1, tup.size())) {
+    r[i - 1] = tup[i];
+  }
+  return r;
+}
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/python_arg_flatten.h

@@ -0,0 +1,119 @@
+#pragma once
+
+#include <c10/util/hash.h>
+#include <c10/util/irange.h>
+#include <torch/csrc/autograd/variable.h>
+#include <torch/csrc/jit/python/pybind.h>
+
+#include <ATen/ATen.h>
+#include <functional>
+#include <tuple>
+#include <vector>
+
+namespace torch::jit::python {
+
+struct IODescriptor {
+  struct VariableMetadata {
+    VariableMetadata(const autograd::Variable& var)
+        : sizes(var.sizes().vec()),
+          type(var.scalar_type()),
+          device(var.device()),
+          requires_grad(var.requires_grad()) {}
+
+    bool operator==(const VariableMetadata& o) const {
+      return std::tie(device, requires_grad, type, sizes) ==
+          std::tie(o.device, o.requires_grad, o.type, o.sizes);
+    }
+
+    static size_t hash(const VariableMetadata& m) {
+      return c10::get_hash(m.sizes, m.device, m.requires_grad, m.type);
+    }
+
+    std::vector<int64_t> sizes;
+    at::ScalarType type;
+    at::Device device;
+    bool requires_grad;
+  };
+
+  bool operator==(const IODescriptor& o) const {
+    return std::tie(structure, metadata, grad_enabled) ==
+        std::tie(o.structure, o.metadata, o.grad_enabled);
+  }
+
+  static size_t hash(const IODescriptor& o) {
+    return c10::get_hash(o.structure, o.metadata, o.grad_enabled);
+  }
+
+  void extend(const autograd::variable_list& list) {
+    metadata.reserve(metadata.size() + list.size());
+    for (auto& var : list)
+      metadata.emplace_back(var);
+  }
+
+  // Description of argument structure. Variables are replaced with
+  // different characters, depending on their flags, beginnings and
+  // ends of tuples and lists are denoted by a pair of parenthesis
+  // of their corresponding kind. They should always be paired.
+  // Example desc: (vv[v(v)v])
+  // NOTE: if extend() was ever called then metadata.size() can be
+  // different than the number of 'v's in structure.
+  std::string structure;
+  std::vector<std::string> strings;
+  std::vector<VariableMetadata> metadata;
+  bool grad_enabled = false;
+};
+
+static inline std::ostream& operator<<(
+    std::ostream& out,
+    const IODescriptor::VariableMetadata& meta) {
+  at::Device meta_device = meta.device;
+  auto& t = at::getDeprecatedTypeProperties(
+      meta_device.is_cpu() ? at::Backend::CPU : at::Backend::CUDA, meta.type);
+  out << t << "(requires_grad=" << meta.requires_grad;
+  if (meta_device.is_cuda()) {
+    out << ", device=" << meta_device.index();
+  }
+  out << ") {";
+  for (const auto i : c10::irange(meta.sizes.size())) {
+    if (i > 0)
+      out << ", ";
+    out << meta.sizes[i];
+  }
+  out << "}";
+  return out;
+}
+
+static inline std::ostream& operator<<(
+    std::ostream& out,
+    const IODescriptor& desc) {
+  out << desc.structure << "\n";
+  out << "  with grad_enabled=" << desc.grad_enabled << "\n";
+  for (const auto i : c10::irange(desc.metadata.size())) {
+    out << "  with v" << i << " having type " << desc.metadata[i] << "\n";
+  }
+  return out;
+}
+
+struct ParsedArgs {
+  // Flat vector of Variables found in arguments
+  autograd::variable_list vars;
+  // Metadata describing nesting of objects received from Python and
+  // metadata of vars and whether grad is enabled.
+  IODescriptor desc;
+
+  void extend(const autograd::variable_list& list) {
+    if (list.empty())
+      return;
+    vars.reserve(vars.size() + list.size());
+    for (auto& var : list)
+      vars.emplace_back(var);
+    desc.extend(list);
+  }
+};
+
+ParsedArgs flatten(py::handle obj);
+PyObject* unflatten(
+    at::ArrayRef<autograd::Variable> vars,
+    const IODescriptor& structure);
+
+} // namespace torch::jit::python

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/python_custom_class.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <torch/csrc/jit/python/pybind_utils.h>
+#include <torch/csrc/utils/pybind.h>
+#include <torch/custom_class.h>
+
+namespace torch::jit {
+
+void initPythonCustomClassBindings(PyObject* module);
+
+struct ScriptClass {
+  ScriptClass(c10::StrongTypePtr class_type)
+      : class_type_(std::move(class_type)) {}
+
+  py::object __call__(py::args args, py::kwargs kwargs);
+
+  c10::StrongTypePtr class_type_;
+};
+
+} // namespace torch::jit

falcon/lib/python3.10/site-packages/torch/include/torch/csrc/jit/python/python_ivalue.h

@@ -0,0 +1,97 @@
+#pragma once
+#include <ATen/core/ivalue.h>
+#include <pybind11/pybind11.h>
+#include <torch/csrc/jit/python/pybind_utils.h>
+#include <torch/csrc/python_headers.h>
+#include <torch/csrc/utils/pybind.h>
+
+namespace py = pybind11;
+
+namespace c10::ivalue {
+
+// concrete ivalue Holder that hold a py::object
+struct C10_EXPORT ConcretePyObjectHolder final : PyObjectHolder {
+ public:
+  static c10::intrusive_ptr<PyObjectHolder> create(py::object py_obj) {
+    return c10::make_intrusive<ConcretePyObjectHolder>(std::move(py_obj));
+  }
+
+  static c10::intrusive_ptr<PyObjectHolder> create(const py::handle& handle) {
+    py::gil_scoped_acquire ag;
+    return c10::make_intrusive<ConcretePyObjectHolder>(
+        handle.cast<py::object>());
+  }
+
+  PyObject* getPyObject() override {
+    return py_obj_.ptr();
+  }
+
+  InferredType tryToInferType() override {
+    pybind11::gil_scoped_acquire ag;
+    return torch::jit::tryToInferType(py_obj_);
+  }
+
+  IValue toIValue(const TypePtr& type, c10::optional<int32_t> N = c10::nullopt)
+      override {
+    pybind11::gil_scoped_acquire ag;
+    return torch::jit::toIValue(py_obj_, type, N);
+  }
+
+  std::string toStr() override {
+    pybind11::gil_scoped_acquire ag;
+    return py::str(py_obj_);
+  }
+
+  std::vector<at::Tensor> extractTensors() override {
+    // We could implement this entirely in C++ via pybind11 but it turns out to
+    // be substantially slower. Namely, the total time taken by markCompleted on
+    // a CUDAFuture is 21.5us with this implementation, but goes up to 58.7us
+    // when using C++. The reason is unclear.
+    try {
+      pybind11::gil_scoped_acquire ag;
+      static py::object& extractorFn = *new py::object(
+          py::module::import("torch._jit_internal").attr("_extract_tensors"));
+      return extractorFn(py_obj_).cast<std::vector<at::Tensor>>();
+    } catch (py::error_already_set& e) {
+      auto err = std::runtime_error(
+          c10::str("Cannot extract tensors from value: ", e.what()));
+      {
+        pybind11::gil_scoped_acquire ag;
+        e.restore();
+        PyErr_Clear();
+      }
+      throw err;
+    }
+  }
+
+  // Note [Destructing py::object]
+  // ~~~~~~~~~~~~~~~~~~~~~~~~~~
+  //
+  // (1) Why py_obj_ = py::none(); does not work. Because we also need to
+  // acquire GIL when destructing py::object of None that de-references None.
+  // https://docs.python.org/3/c-api/none.html#c.Py_RETURN_NONE
+  //
+  // https://stackoverflow.com/questions/15287590/why-should-py-increfpy-none-be-required-before-returning-py-none-in-c
+  //
+  // (2) Why we need to call dec_ref() explicitly. Because py::object of
+  // nullptr, on destruction, effectively does nothing because of it calls
+  // Py_XDECREF(NULL) underlying.
+  // https://docs.python.org/3/c-api/refcounting.html#c.Py_XDECREF
+  ~ConcretePyObjectHolder() override {
+    pybind11::gil_scoped_acquire ag;
+    py_obj_.dec_ref();
+    // explicitly setting PyObject* to nullptr to prevent py::object's dtor to
+    // decref on the PyObject again.
+    py_obj_.ptr() = nullptr;
+  }
+
+  // explicit construction to avoid errornous implicit conversion and
+  // copy-initialization
+  explicit ConcretePyObjectHolder(py::object py_obj)
+      : py_obj_(std::move(py_obj)) {}
+
+ private:
+  py::object py_obj_;
+};
+
+} // namespace c10::ivalue