Arm backend: use ArmCompileSpec in backend

[Erik-Lundell]

Makes for more convenient access of compile spec entries.

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/14140

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❌ 9 New Failures, 4 Unrelated Failures

As of commit 42fe250 with merge base fbdee8f ():

NEW FAILURES - The following jobs have failed:

• pull / test-llava-runner-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 16480dccbe421b397163f2ed7a32215d69f7cb7768097061dbaa96611443637b /exec failed with exit code 139
• pull / test-moshi-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 33026b11c21bbd3848261c3fca80613f5ee030f5bb47b8c767ecd1c8d7a90a33 /exec failed with exit code 1
• pull / unittest / macos / macos-job (gh)
  backends/xnnpack/test/ops/test_conv2d.py::TestConv2d::test_dq_conv2d_seq
• pull / unittest-editable / macos / macos-job (gh)
  exir/tests/test_quant_fusion_pass.py::TestQuantFusionPass::test_embedding_torchao
• trunk / test-huggingface-transformers-macos (bert|coreml_fp32_gpu|--quantize) / macos-job (gh)
  RuntimeError: Command bash /Users/runner/work/_temp/exec_script failed with exit code 1
• trunk / test-models-macos-cpu (vit, xnnpack-quantization-delegation) / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 139
• trunk / test-qnn-model (fp32, conv_former) / linux-job (gh)
  RuntimeError: Command docker exec -t 80b4ced5b32c169afd3ecf6314fb678fd2f7a4988f821652d1ec18973f292487 /exec failed with exit code 9
• trunk / test-qnn-model (fp32, dl3) / linux-job (gh)
  RuntimeError: Command docker exec -t a200efd7672c1b97a0f36da182d264fb289fe5087effe17e0dd0c968f8ce8cf3 /exec failed with exit code 9
• trunk / test-qnn-optimum-model (fp32, distilbert) / linux-job (gh)
  RuntimeError: Command docker exec -t 8cab96843e33602d7b87534977b612fe7962fedef8f1f8e386917dddb6a8b7fa /exec failed with exit code 9

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

• pull / test-openvino-linux / linux-job (gh) (similar failure)
  ##[error]The operation was canceled.
• pull / test-samsung-models-linux / linux-job (gh) (similar failure)
  ##[error]The operation was canceled.

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

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

• pull / test-binary-size-linux-gcc / linux-job (gh) (trunk failure)
• pull / test-setup-linux-gcc / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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

[zingo]

Got an fail :( retriggerening to se if it's random or related to PR

FAILED backends/arm/test/ops/test_sub.py::test_sub_tensor_tosa_INT_2[randn_4D_mutltiple_broadcasts] - AssertionError: Output 0 does not match reference output.
	Given atol: 0.001, rtol: 0.001.
	Output tensor shape: torch.Size([1, 4, 4, 4]), dtype: torch.float32
	Difference: max: 0.0, abs: 0.023693203926086426, mean abs error: 0.0003702063113451004.
	-- Model vs. Reference --
	 Numel: 64, 64
	Median: -0.7344886064529419, -0.7344886064529419
	  Mean: -0.5875168630154803, -0.5871466567041352
	   Max: 2.1797726154327393, 2.1797726154327393
	   Min: -3.8619885444641113, -3.8619885444641113
= 1 failed, 4659 passed, 2418 skipped, 195 xfailed, 36 xpassed, 6542 warnings, 1 rerun in 5395.78s (1:29:55) =

[facebook-github-bot]

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