NXP backend: Added conversion and quantization of aten.unsqueeze

[novak-vaclav]

Summary

adds conversion and quantization of aten.unsqueeze

Test plan

tests can be manually run using pytest -c /dev/null backends/nxp/tests/

cc @robert-kalmar @JakeStevens @digantdesai @MartinPavella

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/16467

• 📄 Preview Python docs built from this PR

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

❌ 1 New Failure, 1 Unrelated Failure

As of commit 81be94a with merge base e847384 ():

NEW FAILURE - The following job has failed:

• pull / unittest-arm-backend-with-no-fvp (test_pytest_models) / linux-job (gh)
  RuntimeError: Command docker exec -t ed8ac4e57a439dcc9cd236247c03ca4e5d6d2acdfa9196f2427a9da6bdf65d32 /exec failed with exit code 1

UNSTABLE - The following job is marked as unstable, possibly due to flakiness on trunk:

• pull / android / run-emulator (gh) (#16137)
  Timeout waiting for emulator to boot.

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

[novak-vaclav]

@pytorchbot label "module: nxp"

[novak-vaclav]

@pytorchbot label "release notes: nxp"

[Copilot]

Pull request overview

This PR adds support for conversion and quantization of aten.unsqueeze operations in the NXP backend. The implementation converts aten.unsqueeze operations to aten.view operations, which are already supported by the NXP backend.

Key Changes:

• Implemented a new pass ConvertUnsqueezeToViewPass that replaces aten.unsqueeze.default with aten.view.default operations
• Integrated the new pass into the NeutronAtenPassManager pipeline
• Added comprehensive test coverage for the conversion with various input shapes and dimension parameters

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 12 comments.

File	Description
backends/nxp/aten_passes/convert_unsqueeze_to_view.py	New file implementing the pass to convert unsqueeze operations to view operations
backends/nxp/aten_passes/neutron_aten_pass_manager.py	Added import and integration of ConvertUnsqueezeToViewPass into the pass manager
backends/nxp/tests/models.py	Added UnsqueezeAddModel test model for testing unsqueeze operations
backends/nxp/tests/test_convert_unsqueeze_to_view_copy.py	New test file with comprehensive tests for the unsqueeze-to-view conversion

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[novak-vaclav]

Fixed issues previously mentioned in this PR: #16466

• added additional check for the presence of edge.aten.view_copy.default operator in the exported program.

Additionally renamed the test_convert_unsqueeze_to_view_copy.py to test_convert_unsqueeze_to_view.py since the conversion adds aten.view.default operators, not aten.view_copy.default.

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.