7 #include <c10/core/SymInt.h>
27 constexpr int64_t INDEX_MIN = c10::SymInt::min_representable_int();
30 enum class TensorIndexType { None, Ellipsis, SymInt, Boolean, Slice, Tensor };  enumerator
42       std::optional<c10::SymInt> start_index = std::nullopt,
43       std::optional<c10::SymInt> stop_index = std::nullopt,
44       std::optional<c10::SymInt> step_index = std::nullopt) {
46       step_ = c10::SymInt(1);
56       start_ = c10::SymInt(step_ < 0 ? INDEX_MAX : 0);
62       stop_ = c10::SymInt(step_ < 0 ? INDEX_MIN : INDEX_MAX);
68   inline c10::SymInt start() const {  in start()
72   inline c10::SymInt stop() const {  in stop()
76   inline c10::SymInt step() const {  in step()
81   c10::SymInt start_;
82   c10::SymInt stop_;
83   c10::SymInt step_;
129   TensorIndex(SymInt integer)  in TensorIndex()
130       : integer_(std::move(integer)), type_(TensorIndexType::SymInt) {}  in TensorIndex()
131   TensorIndex(int64_t integer) : TensorIndex(SymInt(integer)) {}  in TensorIndex()
132   TensorIndex(int integer) : TensorIndex(SymInt(integer)) {}  in TensorIndex()
155     return type_ == TensorIndexType::SymInt;  in is_integer()
158   inline SymInt integer() const {  in integer()
187   SymInt integer_ = 0;
205     c10::SymInt start,  in applySlice()
206     c10::SymInt stop,  in applySlice()
207     c10::SymInt step,  in applySlice()
221     SymInt length = (self_device == at::kCPU || self_device == at::kCUDA)  in applySlice()
237     SymInt index,  in applySelect()
395     // Unbacked SymInt has different behavior, but this is sound because  in slicePrefix1sSize()