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[ExecuTorch][WebGPU] Add gather and embedding ops to the WebGPU backend#20927

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[ExecuTorch][WebGPU] Add gather and embedding ops to the WebGPU backend#20927
JCNTH wants to merge 4 commits into
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gh/JCNTH/66/head

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@JCNTH JCNTH commented Jul 14, 2026 •
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Stack from ghstack (oldest at bottom):

Add aten.gather.default (row-gather) + aten.embedding.default handlers for the training tail.

Key changes:

  • runtime/ops/{gather,embedding}/ — gather / row-gather WGSL kernels + handlers
  • CMakeLists.txt WEBGPU_SRCS — wire the sources

Reuses the shared Vulkan partitioner (aten.gather/embedding already registered); WebGPU kernels only.

Co-authored-with: Claude Code.
@exported-using-ghexport

Differential Revision: D111755125

Differential Revision: D111755125

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🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/20927

Note: Links to docs will display an error until the docs builds have been completed.

This comment was automatically generated by Dr. CI and updates every 15 minutes.

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SS-JIA
SS-JIA approved these changes Jul 16, 2026
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Review automatically exported from Phabricator review in Meta.

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@SS-JIA SS-JIA SS-JIA approved these changes
@larryliu0820 larryliu0820 Awaiting requested review from larryliu0820 larryliu0820 is a code owner
@kirklandsign kirklandsign Awaiting requested review from kirklandsign kirklandsign is a code owner

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