…work)

Pull Request resolved: pytorch#20395

Registers `aten.slice_copy.Tensor` in the `cases.py` op-test framework: a `_slice_suite` of 4 configs (leading-dim slice `[:,1:5]`, last-dim slice `[...,1:3]`, step-2 `[:,0:8:2]`, negative-end `[:,1:-1]`) that `generate_op_tests` exports via `VulkanPartitioner` and compares to a torch golden on Dawn. Also adds `test/ops/slice/test_slice.py` (`SliceModule` + `CONFIGS` + export-delegation/eager smoke test) and the `aten.slice_copy.Tensor` partitioner-allowlist entry in `tester.py`.
ghstack-source-id: 397026537
@exported-using-ghexport

Differential Revision: [D108793151](https://our.internmc.facebook.com/intern/diff/D108793151/)

…ermute_copy.default)

Pull Request resolved: pytorch#20396

Adds `aten.permute_copy.default` (a coordinate-reorder gather) to the WebGPU delegate, and the `IntList` graph value type it needs to read its `dims` argument.

Composition:
- `runtime/WebGPUGraph.{h,cpp}` — adds `ValueType::IntList` backed by `std::vector<std::vector<int64_t>> int_lists_` + `get_int_list(int)`; `build()` deserializes `vkgraph::GraphTypes::IntList` via `value_as_IntList()->items()` (int64, matching the FlatBuffer `[long]`); mirrors the existing scalar value plumbing.
- `runtime/ops/permute/Permute.cpp` — reads the permutation via `get_int_list`, normalizes negative dims, validates it is a permutation of `[0, ndim)`, builds two `TensorMeta` UBOs + a `PermuteParams{perm: vec4<u32>}` uniform, guards fp32 + rank≤4, dispatches over `compute_1d_workgroup_count(out.numel)` with `override wg_size`; releases all uniforms after the bind group.
- `runtime/ops/permute/permute.wgsl` — delinearizes the output index over the contiguous output strides, reads `input` at `in.strides[perm[d]]` per dim (mirrors Vulkan `permute_buffer.glsl`).
- Registers both `aten.permute_copy.default` and `aten.permute.default` to the same handler.
ghstack-source-id: 397026548
@exported-using-ghexport

Differential Revision: [D108793162](https://our.internmc.facebook.com/intern/diff/D108793162/)

…mework)

Pull Request resolved: pytorch#20397

Registers `aten.permute_copy.default` in the `cases.py` op-test framework: a `_permute_suite` of 4 configs (3D rotation, 4D middle-dim transpose, 2D transpose, full 4D shuffle) that `generate_op_tests` exports via `VulkanPartitioner` and compares to a torch golden on Dawn. Also adds `test/ops/permute/test_permute.py` (`PermuteModule` + `CONFIGS` + `_op_delegated` smoke test) and the `aten.permute_copy.default` partitioner-allowlist entry in `tester.py`.
ghstack-source-id: 397026550
@exported-using-ghexport

Differential Revision: [D108793156](https://our.internmc.facebook.com/intern/diff/D108793156/)