…9475)

#168155 was needed to fix Windows CI in torchaudio that looked like such

<details>
<summary><b>click for example of torchaudio windows CI error</b></summary>
<br>

```
2025-11-15T21:11:03.9005985Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(244): error: more than one instance of overloaded function "torch::stable::detail::from" matches the argument list:
2025-11-15T21:11:03.9007831Z               function template "StableIValue from(T)" (declared at line 593)
2025-11-15T21:11:03.9008639Z               function template "StableIValue torch::stable::detail::from(T)" (declared at line 528)
2025-11-15T21:11:03.9009336Z               argument types are: (StableListHandle)
2025-11-15T21:11:03.9009839Z           return from(new_list_handle);
2025-11-15T21:11:03.9010244Z                  ^
2025-11-15T21:11:03.9011886Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(541): note #3326-D: function "torch::stable::detail::from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9013826Z     [[maybe_unused]] inline StableIValue from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9014403Z                                          ^
2025-11-15T21:11:03.9016129Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(534): note #3327-D: candidate function template "torch::stable::detail::from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9017869Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9018335Z                         ^
2025-11-15T21:11:03.9019885Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(609): note #3326-D: function "from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9021652Z     from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9022058Z     ^
2025-11-15T21:11:03.9023430Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(601): note #3327-D: candidate function template "from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9025327Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9025793Z                         ^
2025-11-15T21:11:03.9026102Z             detected during:
2025-11-15T21:11:03.9027321Z               instantiation of "StableIValue torch::stable::detail::FromImpl<c10::HeaderOnlyArrayRef<T>>::call(const c10::HeaderOnlyArrayRef<T> &, uint64_t, __nv_bool) [with T=int64_t]" at line 529
2025-11-15T21:11:03.9029527Z               instantiation of "StableIValue torch::stable::detail::from(T) [with T=torch::headeronly::IntHeaderOnlyArrayRef]" at line 319 of C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/ops.h
2025-11-15T21:11:03.9030992Z
2025-11-15T21:11:03.9031753Z   1 error detected in the compilation of "C:/actions-runner/_work/audio/audio/pytorch/audio/src/libtorchaudio/forced_align/gpu/compute.cu"
```

</details>

But this broke BC in that after that PR `from(...)` is no longer usable without template arguments, which makes the code in fa3 https://github.com/Dao-AILab/flash-attention/blob/ad70a007e6287d4f7e766f94bcf2f9a813f20f6b/hopper/flash_api_stable.cpp#L1797-L1800 no longer compilable in 2.10

We could update the code in FA3, but that might require ifdefs for 2.9 vs 2.10 -- as a general principle for stable extensions, I'm not sure whether updating the extension code or not breaking BC of the headers is what we should go with here. But I'm leaning towards the latter.

This PR takes the alternative approach of restoring torchaudio Windows CI sanity by replacing all `{from/to}` in torch/csrc/stable/stableivalue_conversions.h with `torch::stable::detail::{from/to}` rather than making the `from`/`to` in the global namespace a function pointer

Confirmed that audio CI passes pytorch/audio#4133

Pull Request resolved: #169475
Approved by: https://github.com/albanD

…orch#169475)

pytorch#168155 was needed to fix Windows CI in torchaudio that looked like such

<details>
<summary><b>click for example of torchaudio windows CI error</b></summary>
<br>

```
2025-11-15T21:11:03.9005985Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(244): error: more than one instance of overloaded function "torch::stable::detail::from" matches the argument list:
2025-11-15T21:11:03.9007831Z               function template "StableIValue from(T)" (declared at line 593)
2025-11-15T21:11:03.9008639Z               function template "StableIValue torch::stable::detail::from(T)" (declared at line 528)
2025-11-15T21:11:03.9009336Z               argument types are: (StableListHandle)
2025-11-15T21:11:03.9009839Z           return from(new_list_handle);
2025-11-15T21:11:03.9010244Z                  ^
2025-11-15T21:11:03.9011886Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(541): note pytorch#3326-D: function "torch::stable::detail::from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9013826Z     [[maybe_unused]] inline StableIValue from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9014403Z                                          ^
2025-11-15T21:11:03.9016129Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(534): note pytorch#3327-D: candidate function template "torch::stable::detail::from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9017869Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9018335Z                         ^
2025-11-15T21:11:03.9019885Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(609): note pytorch#3326-D: function "from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9021652Z     from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9022058Z     ^
2025-11-15T21:11:03.9023430Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(601): note pytorch#3327-D: candidate function template "from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9025327Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9025793Z                         ^
2025-11-15T21:11:03.9026102Z             detected during:
2025-11-15T21:11:03.9027321Z               instantiation of "StableIValue torch::stable::detail::FromImpl<c10::HeaderOnlyArrayRef<T>>::call(const c10::HeaderOnlyArrayRef<T> &, uint64_t, __nv_bool) [with T=int64_t]" at line 529
2025-11-15T21:11:03.9029527Z               instantiation of "StableIValue torch::stable::detail::from(T) [with T=torch::headeronly::IntHeaderOnlyArrayRef]" at line 319 of C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/ops.h
2025-11-15T21:11:03.9030992Z
2025-11-15T21:11:03.9031753Z   1 error detected in the compilation of "C:/actions-runner/_work/audio/audio/pytorch/audio/src/libtorchaudio/forced_align/gpu/compute.cu"
```

</details>

But this broke BC in that after that PR `from(...)` is no longer usable without template arguments, which makes the code in fa3 https://github.com/Dao-AILab/flash-attention/blob/ad70a007e6287d4f7e766f94bcf2f9a813f20f6b/hopper/flash_api_stable.cpp#L1797-L1800 no longer compilable in 2.10

We could update the code in FA3, but that might require ifdefs for 2.9 vs 2.10 -- as a general principle for stable extensions, I'm not sure whether updating the extension code or not breaking BC of the headers is what we should go with here. But I'm leaning towards the latter.

This PR takes the alternative approach of restoring torchaudio Windows CI sanity by replacing all `{from/to}` in torch/csrc/stable/stableivalue_conversions.h with `torch::stable::detail::{from/to}` rather than making the `from`/`to` in the global namespace a function pointer

Confirmed that audio CI passes pytorch/audio#4133

Pull Request resolved: pytorch#169475
Approved by: https://github.com/albanD

…9475)

#168155 was needed to fix Windows CI in torchaudio that looked like such

<details>
<summary><b>click for example of torchaudio windows CI error</b></summary>
<br>

```
2025-11-15T21:11:03.9005985Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(244): error: more than one instance of overloaded function "torch::stable::detail::from" matches the argument list:
2025-11-15T21:11:03.9007831Z               function template "StableIValue from(T)" (declared at line 593)
2025-11-15T21:11:03.9008639Z               function template "StableIValue torch::stable::detail::from(T)" (declared at line 528)
2025-11-15T21:11:03.9009336Z               argument types are: (StableListHandle)
2025-11-15T21:11:03.9009839Z           return from(new_list_handle);
2025-11-15T21:11:03.9010244Z                  ^
2025-11-15T21:11:03.9011886Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(541): note #3326-D: function "torch::stable::detail::from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9013826Z     [[maybe_unused]] inline StableIValue from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9014403Z                                          ^
2025-11-15T21:11:03.9016129Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(534): note #3327-D: candidate function template "torch::stable::detail::from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9017869Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9018335Z                         ^
2025-11-15T21:11:03.9019885Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(609): note #3326-D: function "from(const torch::stable::Tensor &)" does not match because argument #1 does not match parameter
2025-11-15T21:11:03.9021652Z     from(const torch::stable::Tensor& val) {
2025-11-15T21:11:03.9022058Z     ^
2025-11-15T21:11:03.9023430Z   C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/stableivalue_conversions.h(601): note #3327-D: candidate function template "from(const std::optional<T> &)" failed deduction
2025-11-15T21:11:03.9025327Z     inline StableIValue from(const std::optional<T>& val) {
2025-11-15T21:11:03.9025793Z                         ^
2025-11-15T21:11:03.9026102Z             detected during:
2025-11-15T21:11:03.9027321Z               instantiation of "StableIValue torch::stable::detail::FromImpl<c10::HeaderOnlyArrayRef<T>>::call(const c10::HeaderOnlyArrayRef<T> &, uint64_t, __nv_bool) [with T=int64_t]" at line 529
2025-11-15T21:11:03.9029527Z               instantiation of "StableIValue torch::stable::detail::from(T) [with T=torch::headeronly::IntHeaderOnlyArrayRef]" at line 319 of C:/actions-runner/_work/audio/audio/pytorch/audio/env/Lib/site-packages/torch/include\torch/csrc/stable/ops.h
2025-11-15T21:11:03.9030992Z
2025-11-15T21:11:03.9031753Z   1 error detected in the compilation of "C:/actions-runner/_work/audio/audio/pytorch/audio/src/libtorchaudio/forced_align/gpu/compute.cu"
```

</details>

But this broke BC in that after that PR `from(...)` is no longer usable without template arguments, which makes the code in fa3 https://github.com/Dao-AILab/flash-attention/blob/ad70a007e6287d4f7e766f94bcf2f9a813f20f6b/hopper/flash_api_stable.cpp#L1797-L1800 no longer compilable in 2.10

We could update the code in FA3, but that might require ifdefs for 2.9 vs 2.10 -- as a general principle for stable extensions, I'm not sure whether updating the extension code or not breaking BC of the headers is what we should go with here. But I'm leaning towards the latter.

This PR takes the alternative approach of restoring torchaudio Windows CI sanity by replacing all `{from/to}` in torch/csrc/stable/stableivalue_conversions.h with `torch::stable::detail::{from/to}` rather than making the `from`/`to` in the global namespace a function pointer

Confirmed that audio CI passes pytorch/audio#4133

Pull Request resolved: #169475
Approved by: https://github.com/albanD