[ExecuTorch][WebGPU] aten.index.Tensor test suite (export + native golden)#20570
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JulianCloudNTH merged 1 commit intoJun 27, 2026
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…lden) Pull Request resolved: #20465 Adds the test suite for the aten.index.Tensor op (stacked on the op diff): - test/ops/index/test_index.py: exports a module computing x[idx] through VulkanPartitioner for four configs (reorder/repeat indices over distinct self values, so a wrong-gather is visible), asserts a VulkanBackend delegate with index.Tensor absorbed (not a CPU fallback), and writes per-config .pte + .self/.idx/.golden.bin. - test/native/test_index.cpp: a standalone Dawn binary that loads each .pte, feeds self (fp32) + index (int64 at the program boundary, narrowed to the int32 buffer) and compares the gather against the torch golden at 1e-3, with a single-output shape guard. - Wired into CMake (webgpu_index_test), test/TARGETS (python_unittest test_index), and the Dawn native CI script. ghstack-source-id: 397763261 @exported-using-ghexport @diff-train-skip-merge Differential Revision: [D109479000](https://our.internmc.facebook.com/intern/diff/D109479000/)
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/20570
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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: #20465 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/60/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/60/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/59/orig
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/JulianCloudNTH/60/orig
@diff-train-skip-merge