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[ExecuTorch][WebGPU] split_with_sizes_copy op tests#20996

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[ExecuTorch][WebGPU] split_with_sizes_copy op tests#20996
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@JCNTH JCNTH commented Jul 16, 2026

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Stack from ghstack (oldest at bottom):

Op-test suite for aten.split_with_sizes_copy.default (stacked on the split_with_sizes_copy op diff).

Adds test/ops/test_split_with_sizes_copy.py (SplitWithSizesModuletorch.split by a size list) + a @register_op_test("split_with_sizes_copy") suite in test/op_tests/cases.py (3 cases: a 3-way channel split, a dim-0 split, and a last-dim split). Multi-output: the framework compares chunk 0 (out_index 0) while each case exercises all N per-chunk dispatches. copy is bit-exact, so the golden is float32.

Differential Revision: D112417279

[ghstack-poisoned]
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🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/20996

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

❌ 66 New Failures, 3 Pending, 3 Unrelated Failures, 7 Unclassified Failures

As of commit d8dbafa with merge base c2b273e (image):

NEW FAILURES - The following jobs have failed:

UNCLASSIFIED FAILURES - DrCI could not classify the following jobs because the workflow did not run on the merge base. The failures may be pre-existing on trunk or introduced by this PR:

FLAKY - The following jobs failed but were likely due to flakiness present on trunk:

  • pull / unittest / windows / windows-job (gh) (matched win rule in flaky-rules.json)
    Can't find 'action.yml', 'action.yaml' or 'Dockerfile' under 'C:\actions-runner\_work\executorch\executorch\test-infra\.github\actions\teardown-windows'. Did you forget to run actions/checkout before running your local action?
  • pull / unittest-editable / windows / windows-job (gh) (matched win rule in flaky-rules.json)
    Can't find 'action.yml', 'action.yaml' or 'Dockerfile' under 'C:\actions-runner\_work\executorch\executorch\test-infra\.github\actions\teardown-windows'. Did you forget to run actions/checkout before running your local action?

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

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This was referenced Jul 16, 2026
@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jul 16, 2026
[ghstack-poisoned]
JCNTH added a commit that referenced this pull request Jul 16, 2026
Pull Request resolved: #20996

**Op-test suite for `aten.split_with_sizes_copy.default`** (stacked on the split_with_sizes_copy op diff).

Adds `test/ops/test_split_with_sizes_copy.py` (`SplitWithSizesModule` — `torch.split` by a size list) + a `@register_op_test("split_with_sizes_copy")` suite in `test/op_tests/cases.py` (3 cases: a 3-way channel split, a dim-0 split, and a last-dim split). Multi-output: the framework compares chunk 0 (out_index 0) while each case exercises all N per-chunk dispatches. `copy` is bit-exact, so the golden is float32.
ghstack-source-id: 403871287
@exported-using-ghexport

Differential Revision: [D112417279](https://our.internmc.facebook.com/intern/diff/D112417279/)
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