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#include <torch/csrc/jit/ir/constants.h>
#include <ATen/core/functional.h>
#include <torch/csrc/autograd/variable.h>
#include <torch/csrc/jit/ir/ir.h>
#include <torch/csrc/jit/runtime/custom_operator.h>
#include <torch/csrc/jit/runtime/operator.h>
namespace torch {
namespace jit {
namespace {
c10::AliasAnalysisKind aliasAnalysisInternalSpecialCase() {
return AliasAnalysisKind::INTERNAL_SPECIAL_CASE;
}
} // namespace
bool insertableTensor(const at::Tensor& ten) {
return !ten.requires_grad();
}
bool insertableIValue(const IValue& ivalue) {
if (ivalue.isInt() || ivalue.isNone() || ivalue.isBool() ||
ivalue.isDouble() || ivalue.isString() || ivalue.isDevice() ||
ivalue.isEnum()) {
return true;
}
if (ivalue.isTensor()) {
return insertableTensor(ivalue.toTensor());
}
if (ivalue.isList() || ivalue.isTuple()) {
c10::ArrayRef<IValue> elems;
if (ivalue.isTuple()) {
elems = ivalue.toTuple()->elements();
} else {
elems = ivalue.toListRef();
}
return std::all_of(elems.begin(), elems.end(), [](const IValue& tup_elem) {
return insertableIValue(tup_elem);
});
}
if (ivalue.isGenericDict()) {
const auto& dict = ivalue.toGenericDict();
return std::all_of(dict.begin(), dict.end(), [](const auto& entry) {
return insertableIValue(entry.key()) && insertableIValue(entry.value());
});
}
return false;
}
Value* insertConstant(
Graph& g,
const IValue& val,
c10::optional<SourceRange> loc,
c10::optional<ScopePtr> scope) {
auto value = tryInsertConstant(g, val, loc, scope);
if (value) {
return *value;
}
throw constant_not_supported_error(
"Unsupported value kind: " + val.tagKind());
}
// IValue -> Constant node
c10::optional<Value*> tryInsertConstant(
Graph& g,
const IValue& val,
c10::optional<SourceRange> loc,
c10::optional<ScopePtr> scope) {
Node* n = g.create(prim::Constant);
if (val.isTensor()) {
at::Tensor ref = val.toTensor();
if (!ref.has_storage()) {
// bail if tensor has no storage i.e. opaque tensor used in MKLdnn.
n->destroy();
return c10::nullopt;
}
if (!ref.defined()) {
n->destroy();
return g.insertNode(g.createNone())->output();
}
TORCH_INTERNAL_ASSERT(!ref.requires_grad());
n->output()->inferTypeFrom(
ref); // note: before t_ because of std::move(ref)
n->t_(attr::value, std::move(ref));
} else if (val.isInt()) {
n->i_(attr::value, val.toInt());
n->output()->setType(IntType::get());
} else if (val.isDouble()) {
n->f_(attr::value, val.toDouble());
n->output()->setType(FloatType::get());
} else if (val.isBool()) {
n->i_(attr::value, val.toBool());
n->output()->setType(BoolType::get());
} else if (val.isList()) {
bool fast_path_list =
val.isBoolList() || val.isIntList() || val.isDoubleList();
if (fast_path_list || insertableIValue(val)) {
n->ival_(attr::value, val);
n->output()->setType(val.type());
} else {
n->destroy();
return c10::nullopt;
}
} else if (val.isString()) {
n->s_(attr::value, val.toString()->string());
n->output()->setType(StringType::get());
} else if (val.isDevice()) {
std::stringstream ss;
ss << val.toDevice();
n->s_(attr::value, ss.str());
n->output()->setType(DeviceObjType::get());
} else if (val.isNone()) {
n->output()->setType(NoneType::get());
} else if (val.isTuple()) {
if (insertableIValue(val)) {
n->ival_(attr::value, val);
n->output()->setType(val.type());
} else {
n->destroy();
return c10::nullopt;
};
} else if (val.isGenericDict() && insertableIValue(val)) {
n->ival_(attr::value, val);
n->output()->setType(val.type());
} else if (val.isEnum()) {
n->ival_(attr::value, val);
n->output()->setType(val.type());
} else {
n->destroy();
return c10::nullopt;
}
if (loc)
n->setSourceRange(*loc);
if (scope)
n->setScope(*scope);
return g.insertNode(n)->output();
}
c10::optional<IValue> toIValue(const Value* v) {
if (v->node()->kind() != prim::Constant || v->type()->cast<FunctionType>()) {
return c10::nullopt;
}
const Node* node = v->node();
const TypePtr& type = v->type();
if (type->isSubtypeOf(TensorType::get())) {
return node->t(attr::value);
} else if (type->isSubtypeOf(BoolType::get())) {
return (bool)node->i(attr::value);
} else if (
type->isSubtypeOf(NumberType::get()) &&
node->kindOf(attr::value) == AttributeKind::i) {
return node->i(attr::value);
} else if (
type->isSubtypeOf(NumberType::get()) &&
node->kindOf(attr::value) == AttributeKind::f) {
return node->f(attr::value);
} else if (
type->cast<ListType>() &&
node->kindOf(attr::value) == AttributeKind::ival) {
const auto& list = node->ival(attr::value);
TORCH_INTERNAL_ASSERT(list.isList());
return list;
} else if (
type->cast<DictType>() &&
node->kindOf(attr::value) == AttributeKind::ival) {
const auto& dict = node->ival(attr::value);
TORCH_INTERNAL_ASSERT(dict.isGenericDict());
return dict;
} else if (
type->cast<TupleType>() &&
node->kindOf(attr::value) == AttributeKind::ival) {
const auto& tup = node->ival(attr::value);
TORCH_INTERNAL_ASSERT(tup.isTuple());
return tup;
} else if (type == StringType::get()) {
const auto& s = node->s(attr::value);
return s;
} else if (type == DeviceObjType::get()) {
auto d = c10::Device(node->s(attr::value));
return d;
} else if (node->mustBeNone()) {
return IValue();
} else if (type->cast<EnumType>()) {
const auto& enum_val = node->ival(attr::value);
return enum_val;
} else {
std::stringstream ss;
ss << "constant literal not supported for: " << type->str();
throw std::runtime_error(ss.str());
}
}
} // namespace jit
} // namespace torch
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