fix sign return type

[ngimel]

Fixes #101216

cc @soumith @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @Xia-Weiwen @wenzhe-nrv @jiayisunx @peterbell10 @desertfire

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/101346

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❌ 1 New Failure, 3 Unrelated Failures

As of commit c6fe6a5:

NEW FAILURE - The following job has failed:

• linux-focal-cpu-py3.8-gcc7-inductor / test (inductor_huggingface_cpu_accuracy, 1, 1, linux.4xlarge) (gh)

BROKEN TRUNK - The following jobs failed but were present on the merge base da02ccc:

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

• cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (aot_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu) (gh)
• cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (dynamic_aot_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu) (gh)
• cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (dynamo_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu) (gh)

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[ngimel]

@pytorchbot merge

[pytorchmergebot]

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[pytorchmergebot]

Merge failed

Reason: 4 jobs have failed, first few of them are: inductor-periodic / cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (dynamo_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu), inductor-periodic / cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (aot_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu), inductor-periodic / cuda12.1-py3.10-gcc7-sm86-periodic-dynamo-benchmarks / test (dynamic_aot_eager_torchbench, 1, 1, linux.g5.4xlarge.nvidia.gpu), inductor / linux-focal-cpu-py3.8-gcc7-inductor / test (inductor_huggingface_cpu_accuracy, 1, 1, linux.4xlarge)

Details for Dev Infra team

Raised by workflow job

[ngimel]

@pytorchbot merge -f "test failures unrelated"

[pytorchmergebot]

Merge started

Your change will be merged immediately since you used the force (-f) flag, bypassing any CI checks (ETA: 1-5 minutes).

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