Mikayla Gawarecki dc8fe8f971 Add squeeze, unsqueeze, matmul, select, subtract to stable ops (#169880) ...

From https://github.com/pytorch/audio/blob/main/src/libtorchaudio/stable/ops.h

Technically it should have been ok not to port these but looking at these carefully I realized the subtract ported to audio ~would have undefined behavior :/~ is broken

```
inline Tensor subtract(const Tensor& self, const Tensor& other) {
  const auto num_args = 2;
  std::array<StableIValue, num_args> stack{
      torch::stable::detail::from(self), torch::stable::detail::from(other)};
  TORCH_ERROR_CODE_CHECK(torch_call_dispatcher(
      "aten::subtract", "Tensor", stack.data(), TORCH_ABI_VERSION));
  return torch::stable::detail::to<torch::stable::Tensor>(stack[0]);
}
```

as it missed `alpha` the signature for `subtract.Tensor` is  `func: subtract.Tensor(Tensor self, Tensor other, *, Scalar alpha=1) -> Tensor`. ~This is also our bad as although out of bounds reads on the stableivalue stack would be caught by asan, without asan they are silent correctness issues (PR coming to fix).~

Use the old path to support this as we don't support stableivalue conversion for Scalar yet.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/169880
Approved by: https://github.com/albanD
ghstack dependencies: #169703, #169709, #169711, #168062, #169872

2025-12-09 15:47:47 +00:00

..

__init__.py

…

fallback_ops.py

Add squeeze, unsqueeze, matmul, select, subtract to stable ops (#169880)

2025-12-09 15:47:47 +00:00