Files
pytorch/c10/core/Scalar.cpp
Edward Z. Yang 9c036aa112 Add SymInt to Scalar (#84958)
This is by no means comprehensive, but adds initial support for SymInt as a Scalar.

Things that don't work yet but need to:
- for some reason `torch.add(tensor, sym_int)` got matched to the `add.Tensor(Tensor self, Tensor other, *, Scalar alpha=1) -> Tensor` schema
- `x + sym_int` failed bc we tried to turn `x` into a sym int:
```
              "__radd__",
              [](c10::SymIntNode a, py::object b) -> c10::SymIntNode {
                auto snb = toSymIntNode(a, b);
                return a->add(snb);
              })
 ```
- Many more things I'm sure

Pull Request resolved: https://github.com/pytorch/pytorch/pull/84958
Approved by: https://github.com/ezyang
2022-09-25 23:51:06 +00:00

46 lines
1.2 KiB
C++

#include <c10/core/Scalar.h>
namespace c10 {
Scalar Scalar::operator-() const {
TORCH_CHECK(
!isBoolean(),
"torch boolean negative, the `-` operator, is not supported.");
if (isFloatingPoint()) {
TORCH_CHECK(!isSymbolic(), "NYI negate symbolic float");
return Scalar(-v.d);
} else if (isComplex()) {
TORCH_INTERNAL_ASSERT(!isSymbolic());
return Scalar(-v.z);
} else if (isIntegral(false)) {
TORCH_CHECK(!isSymbolic(), "NYI negate symbolic int");
return Scalar(-v.i);
}
TORCH_INTERNAL_ASSERT(false, "unknown ivalue tag ", static_cast<int>(tag));
}
Scalar Scalar::conj() const {
if (isComplex()) {
TORCH_INTERNAL_ASSERT(!isSymbolic());
return Scalar(std::conj(v.z));
} else {
return *this;
}
}
Scalar Scalar::log() const {
if (isComplex()) {
TORCH_INTERNAL_ASSERT(!isSymbolic());
return std::log(v.z);
} else if (isFloatingPoint()) {
TORCH_CHECK(!isSymbolic(), "NYI log symbolic float");
return std::log(v.d);
} else if (isIntegral(false)) {
TORCH_CHECK(!isSymbolic(), "NYI log symbolic int");
return std::log(v.i);
}
TORCH_INTERNAL_ASSERT(false, "unknown ivalue tag ", static_cast<int>(tag));
}
} // namespace c10