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This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #12199 by @ahmtox
^ Please use this as the source of truth for the PR details, comments, and reviews
ghstack PR base: https://github.com/pytorch/executorch/tree/gh/ahmtox/27/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/ahmtox/27/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/main
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/ahmtox/27/orig
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Pull Request resolved: #12199

# Context

A few operators have been recently created, namely:
- quantize_per_tensor
- quantize_per_token
- dequantize_per_tensor
- dequantize_per_token
- choose_qparams.tensor
- choose_qparams_per_token_asymmetric

They don't have a namespace associated with them, and since we are trying to align with the ATen implementation in their respective quantized_decomposed namespace, this diff is necessary to align in that regard. Furthermore, our operators need to match inputs with the ATen version, so we also pass dtypes.

# Changes

The primary change is adding the namespace quantized_decomposed to all the above named operators. Furthermore, we change the testing framework to pass dummy dtypes that is expected for the ATen implementation. We also change the `choose_qparams` logic to properly pass the eps, since this is actually a relevant variable and cannot be set by default, despite the existing op_quantize cpu reference in executorch not distinctly using this variable.
ghstack-source-id: 295972783
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Differential Revision: [D77746144](https://our.internmc.facebook.com/intern/diff/D77746144/)
@pytorchbot pytorchbot requested a review from SS-JIA as a code owner July 14, 2025 14:58
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pytorch-bot bot commented Jul 14, 2025

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12428

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@facebook-github-bot facebook-github-bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jul 14, 2025
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This PR needs a release notes: label

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@SS-JIA SS-JIA merged commit ec4e6e9 into main Jul 14, 2025
95 of 98 checks passed
@SS-JIA SS-JIA deleted the gh/ahmtox/27/orig branch July 14, 2025 15:13
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