Arm backend: Add tests for int16 rsqrt on Ethos-U55/U85

[Ninja91]

Summary:
Fix Rsqrt op for int16
Relands D83802158

Differential Revision: D86402524

cc @freddan80 @per @zingo @oscarandersson8218 @digantdesai

[pytorch-bot]

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❌ 1 New Failure, 3 Unrelated Failures

As of commit 9691954 with merge base 3dbc15b ():

NEW FAILURE - The following job has failed:

• trunk / test-arm-backend (test_pytest_ops_ethosu_fvp) / linux-job (gh)
  RuntimeError: Command docker exec -t 7deadbe673f98b05a6f58a169dcc0b4f3c2d3bc8c5c8ef71eb6c9d782e61739e /exec failed with exit code 1

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

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

• pull / unittest / windows / windows-job (gh) (trunk failure)
  backends/xnnpack/test/ops/test_conv1d.py::TestConv1d::test_qs8_conv1d_batchnorm_seq
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  backends/xnnpack/test/ops/test_conv1d.py::TestConv1d::test_qs8_conv1d_batchnorm_seq
• trunk / unittest-release / windows / windows-job (gh) (trunk failure)
  backends/xnnpack/test/ops/test_conv1d.py::TestConv1d::test_qs8_conv1d_batchnorm_seq

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[meta-codesync]

@Ninja91 has exported this pull request. If you are a Meta employee, you can view the originating Diff in D86402524.

[Ninja91]

test-lama-runner-mac test seemes unrrelated.
cc: @zingo @digantdesai @SaoirseARM

[zingo]

Hi @Ninja91 this is the fails we see,

pull / unittest-arm-backend-with-no-fvp (test_pytest_ops) / linux-job (pull_request)
FAILED backends/arm/test/ops/test_rsqrt.py::test_rsqrt_int16_tosa_INT[rand_4d_1]
FAILED backends/arm/test/ops/test_rsqrt.py::test_rsqrt_int16_tosa_INT[rand_4d_2]
FAILED backends/arm/test/ops/test_rsqrt.py::test_rsqrt_int16_tosa_INT[rand_3d]

if you can break out the fails in it's own tests you can add a tag
@pytest.mark.xfail( reason="text" )
for now, or just commen them out.

Also we see #14770 should that be closed?

[zingo]

Thanks for the update, lets see if CI passes now.

Maybe we want/need to carve out just the failed tests and only mark those but lets see, we should probably add atol/rtol instead and remove xfails long term anyway so if CI is happy I'm happy :)

[zingo]

@Ninja91 I see
Meta Internal-Only Changes Check — The Diff and Pull Request are not in sync!

It stops me from merging, I don't know if it's bacause I edited the commit heade adding "Arm backend: " Maybe you need to reimport it or something else? Sorry about that.

[zingo]

Arm Backend Fail
FAILED backends/arm/test/ops/test_sub.py::test_sub_tensor_tosa_INT_alpha[rand_4D_pi]
is unrelated and has a error rate on about 2-3% normaly we should retrigger to prove it but due to this is needed to be merged Ill just state it here this time.
Rest of the fails are also unrelated