Arm Backend: Add support for ELU.default operator

[agrima1304]

Decomposes elu into other operators/ lookup table for MI/ BI case.

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[pytorch-bot]

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❌ 1 New Failure, 1 Unrelated Failure

As of commit 10eac2d with merge base 275adee ():

NEW FAILURE - The following job has failed:

• trunk / test-arm-cortex-m-size-test (bare_metal) / linux-job (gh)
  RuntimeError: Command docker exec -t be44fa39f68abf25acb357a919cfe1871ed67be92057934e413e689721cd8789 /exec failed with exit code 1

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

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

• trunk / test-models-macos-coreml (emformer_transcribe) / macos-job (gh) (trunk failure)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1

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[agrima1304]

@pytorchbot label "partner: arm"

[agrima1304]

@pytorchbot label "release notes: arm"

[agrima1304]

@pytorchbot label "ciflow/trunk"

[pytorch-bot]

To add these label(s) (ciflow/trunk) to the PR, please first approve the workflows that are awaiting approval (scroll to the bottom of this page).

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[Sebastian-Larsson]

The CI failure for Cortex-m is unrelated to this patch. Approved

[digantdesai]

I don't understand this.

[agrima1304]

The default value of input_scale is 1.0, however using the default value resulted in a type error. When passing 1 as an int, it was overridden by the default value (since both values are 1 and therefore equivalent ). So input_scale had to be changed to an int that is not 1.

[digantdesai]

Thanks!

[zingo]

This will unfortunately need a rebase after the TOSA 0.80.1 removal :(