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TF FE: support non-static rank BiasAdd for NCHW layout#34549

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TF FE: support non-static rank BiasAdd for NCHW layout#34549
xyx-creator wants to merge 1 commit intoopenvinotoolkit:masterfrom
xyx-creator:tf-fe-biasadd-nchw-non-static-rank

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Details:

  • Fixed TensorFlow FE BiasAdd for data_format="NCHW" when input has non-static rank (rank is dynamic).
  • Kept existing behavior unchanged for:
    • NCHW with static rank
    • NHWC path
  • Preserved complex handling flow; only bias alignment graph was adjusted for non-static-rank NCHW.
  • Implemented dynamic bias alignment via shape-subgraph + Reshape (i64 shape ops).
  • Added/updated regression coverage:
    • bias_add_nchw_non_static_rank
    • bias_add_nchw_static_rank_regression
    • bias_add_nhwc_regression

Tickets:

  • ticket-id: N/A

AI Assistance:

  • AI assistance used: yes
  • AI was used only as coding assistance (editing/refactoring support).
  • The solution idea, design decisions, and validation strategy were done by the author.
  • Build and test execution, result checking, and final verification were performed manually by the author.

@xyx-creator xyx-creator requested a review from a team as a code owner March 7, 2026 05:50
@github-actions github-actions bot added category: TF FE OpenVINO TensorFlow FrontEnd category: TFL FE OpenVINO TensorFlow Lite FrontEnd labels Mar 7, 2026
@sys-openvino-ci sys-openvino-ci added the ExternalPR External contributor label Mar 7, 2026
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