[ExecuTorch][WebGPU] view_copy op test suite (cases.py op-test framework)#20530
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JulianCloudNTH merged 7 commits intoJun 26, 2026
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…ork) Pull Request resolved: #20361 Registers `aten.view_copy.default` in the `cases.py` op-test framework: a `_view_copy_suite` of 3 configs (rank-reducing reshape `(2,3,4)->(6,4)`, flatten `->(-1,)`, rank-increasing reshape `->(1,2,3,4)`) that `generate_op_tests` exports via `VulkanPartitioner` and compares to a torch golden on Dawn. Also adds `test/ops/view_copy/test_view_copy.py` (`ViewModule` + `CONFIGS` + export-delegation/eager smoke test) and the `aten.view_copy.default` partitioner-allowlist entry in `tester.py`. ghstack-source-id: 397026501 @exported-using-ghexport Differential Revision: [D108793155](https://our.internmc.facebook.com/intern/diff/D108793155/)
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Pull Request resolved: #20362 Adds `aten.select_copy.int` to the WebGPU delegate as a gather: picks a fixed index along one dim, producing an output of rank (input rank - 1). Composition (single dispatch): - `select/Select.cpp` — reads `[self, dim, index, out]` (static `Int` via `read_scalar`; throws on dynamic `SymInt`), normalizes + bounds-checks dim/index, builds 2 `TensorMeta` UBOs + a `SelectParams{dim,index}`, fp32 guard, 1D-dispatch over `numel`, releases uniforms after the bind group. - `select/select.wgsl` — seeds the input offset with `index * in.strides[dim]`, delinearizes the output index, maps each out dim to its in dim (shifted past the selected dim), relinearizes on input strides. ghstack-source-id: 397026510 @exported-using-ghexport Differential Revision: [D108793166](https://our.internmc.facebook.com/intern/diff/D108793166/)
…ework) Pull Request resolved: #20363 Registers `aten.select_copy.int` in the `cases.py` op-test framework: a `_select_suite` of 4 configs (leading/middle/last dim + negative index) that `generate_op_tests` exports and compares to a torch golden on Dawn. Also adds `test/ops/select/test_select.py` (`SelectModule` + `CONFIGS` + an export-delegation/eager smoke test) and the `aten.select_copy.int` partitioner-allowlist entry in `tester.py`. ghstack-source-id: 397026513 @exported-using-ghexport Differential Revision: [D108793161](https://our.internmc.facebook.com/intern/diff/D108793161/)
Pull Request resolved: #20390 Adds `aten.sigmoid.default` to the WebGPU delegate: element-wise `1/(1+exp(-x))` over a flat fp32 buffer. On the Llama critical path (`F.silu` -> `sigmoid` + `mul`). Composition (single dispatch): - `sigmoid/UnaryOp.cpp` — binds input (storage, read-only) + output (storage) + a `Params{num_elements}` uniform, 1D-dispatches over `num_elements` with `override wg_size` (clamped to the device limit); mirrors the `add` op (uniform mapped-at-creation, released after the bind group). - `sigmoid/sigmoid.wgsl` — guards `idx >= num_elements` and writes the logistic of each element. ghstack-source-id: 397026515 @exported-using-ghexport Differential Revision: [D108793157](https://our.internmc.facebook.com/intern/diff/D108793157/)
Pull Request resolved: #20391 Registers `aten.sigmoid.default` in the `cases.py` op-test framework: a `_sigmoid_suite` (hard-coded shapes + a saturation case over a `linspace(-12, 12)` input) that `generate_op_tests` exports and compares to an fp64 torch golden on Dawn. Also adds `test/ops/sigmoid/test_sigmoid.py` (`SigmoidModule` + `N` + `_det_input` + an export-delegation/eager smoke test) and the `aten.sigmoid.default` partitioner-allowlist entry in `tester.py`. ghstack-source-id: 397026520 @exported-using-ghexport Differential Revision: [D108793159](https://our.internmc.facebook.com/intern/diff/D108793159/)
Pull Request resolved: #20392 Adds `aten.squeeze_copy.dims` and `aten.unsqueeze_copy.default` to the WebGPU delegate. Both are numel-preserving shape ops; on a dense row-major buffer backend they are the same flat copy as `view_copy` — only the shape metadata differs (mirrors the Vulkan delegate, which routes both through `add_view_copy_node`). Composition (no new kernel): - `squeeze/Squeeze.cpp` — reads `args = [self, dims, out]`, ignores the AOT-fixed `dims`, calls `add_flat_copy(graph, in, out)` from `runtime/ops/view_copy/view_copy.h`. - `unsqueeze/Unsqueeze.cpp` — reads `args = [self, dim, out]`, ignores the AOT-fixed `dim`, calls `add_flat_copy(graph, in, out)`. ghstack-source-id: 397026523 @exported-using-ghexport Differential Revision: [D108793153](https://our.internmc.facebook.com/intern/diff/D108793153/)
….py op-test framework) Pull Request resolved: #20393 Registers `aten.squeeze_copy.dims` and `aten.unsqueeze_copy.default` in the `cases.py` op-test framework: a `_squeeze_suite` of 3 configs (squeeze leading/middle/multiple size-1 dims) and a `_unsqueeze_suite` of 3 configs (insert dim at front/middle/last) that `generate_op_tests` exports via `VulkanPartitioner` and compares to a torch golden on Dawn. Also adds `test/ops/squeeze/test_squeeze.py` (`SqueezeModule` + `CONFIGS` + `_op_delegated` smoke test), `test/ops/unsqueeze/test_unsqueeze.py` (`UnsqueezeModule` + `CONFIGS` + `_op_delegated` smoke test), and the two partitioner-allowlist entries in `tester.py`. ghstack-source-id: 397026525 @exported-using-ghexport Differential Revision: [D108793152](https://our.internmc.facebook.com/intern/diff/D108793152/)
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This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #20361 by @JulianCloudNTH
^ Please use this as the source of truth for the PR details, comments, and reviews
ghstack PR base: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/36/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/36/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/35/orig
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/36/orig
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