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Arm backend: Add support pow.Tensor_Tensor, U55. - #22935

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wwwind:pow_tensor

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@wwwind

@wwwind wwwind commented Sep 18, 2026

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Adds Arm backend support for aten.pow.Tensor_Tensor.

The implementation decomposes supported tensor/tensor power operations into TOSA-compatible operations and adds validation to ensure the decomposition is only applied when the input range satisfies its requirements.

Includes test coverage for supported and rejected cases, including quantized inputs.

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218 @mansnils @Sebastian-Larsson @robell @rascani

Signed-off-by: Elena Zhelezina <elena.zhelezina@arm.com>
Change-Id: Iefc945d9f6c78d9f759271e5384dd85805429d2f
@wwwind wwwind added partner: arm For backend delegation, kernels, demo, etc. from the 3rd-party partner, Arm ciflow/trunk labels Sep 18, 2026
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wwwind requested a review from digantdesai as a code owner September 18, 2026 14:51
@wwwind wwwind added release notes: arm Changes to the ARM backend delegate module: arm Issues related to arm backend labels Sep 18, 2026
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pytorch-bot Bot commented Sep 18, 2026

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🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/22935

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

❌ 1 New Failure, 1 Pending

As of commit 2b4d661 with merge base 65aacaa (image):

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@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 Sep 18, 2026
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ciflow/trunk CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. module: arm Issues related to arm backend partner: arm For backend delegation, kernels, demo, etc. from the 3rd-party partner, Arm release notes: arm Changes to the ARM backend delegate

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