Create seperate cmake target for sampler-related cuda functions

[Gasoonjia]

No description provided.

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/19657

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❗ 1 Active SEVs

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• Run pull request jobs on OSDC runners in shadow mode

❌ 8 New Failures, 2 Pending, 3 Unrelated Failures, 3 Unclassified Failures

As of commit 7dd30f2 with merge base 12bb0e7 ():

NEW FAILURES - The following jobs have failed:

• Lint / lintrunner (gh)
  >>> Lint for backends/cuda/runtime/shims/tests/CMakeLists.txt:
• MLX / test-mlx-llm (unsloth/Qwen3-0.6B, qwen3-0.6b, false, nvfp4, macos-14-xlarge) / test-mlx-llm-qwen3-0.6b-nvfp4 (gh)
  The process '/opt/homebrew/bin/git' failed with exit code 1
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (facebook, dinov2-small-imagenet1k-1-layer, non-quantized) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-3B-2507, non-quantized) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-3B-2507, quantized-int4-weight-only) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-4B-Realtime-2602, quantized-int4-tile-packed) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (nvidia, parakeet-tdt, non-quantized) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]
• Test CUDA Windows Export and E2E / test-model-cuda-windows-e2e (nvidia, parakeet-tdt, quantized-int4-weight-only) / windows-job (gh)
  C:/actions-runner/_work/executorch/executorch/pytorch/executorch/..\executorch/backends/aoti/slim/core/slim_tensor.h(17): fatal error C1083: Cannot open include file: 'c10/util/safe_numerics.h': No such file or directory [C:\actions-runner\_work\executorch\executorch\pytorch\executorch\cmake-out\backends\cuda\aoti_cuda_sampler_shims.vcxproj]

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:

• Build Windows Wheels / pytorch/executorch / build-wheel-py3_10-cpu (gh) (this job did not run on the merge base, so DrCI cannot tell whether the failure is pre-existing)
  Process completed with exit code 1.
• Build Windows Wheels / pytorch/executorch / upload / upload-wheel-py3_10-cpu (gh) (this job did not run on the merge base, so DrCI cannot tell whether the failure is pre-existing)
  Unable to download artifact(s): Artifact not found for name: pytorch_executorch__3.10_cpu_x64
• Check Labels / Check labels (gh) (this job did not run on the merge base, so DrCI cannot tell whether the failure is pre-existing)
  RuntimeError: GraphQL query

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

• pull / test-models-linux (emformer_join, xnnpack-quantization-delegation, linux.4xlarge.memory) / linux-job (gh) (matched linux rule in flaky-rules.json)
  The process '/usr/bin/git' failed with exit code 128
• pull / test-models-linux (phi_4_mini, portable, linux.4xlarge.memory) / linux-job (gh) (matched linux rule in flaky-rules.json)
  The process '/usr/bin/git' failed with exit code 128
• pull / test-parakeet-xnnpack-linux / linux-job (gh) (matched linux rule in flaky-rules.json)
  The process '/usr/bin/git' failed with exit code 128

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