26.1.1 hotfix#35170
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peterchen-intel merged 2 commits intoopenvinotoolkit:releases/2026/1from Apr 7, 2026
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… instead of runtime shape (openvinotoolkit#34878) - **Symptom**: SwinTransformer accuracy regression on GPU (max abs diff: 7.53) after openvinotoolkit#34680. - **Root-cause**: The condition `reshape_ps[0].get_length() == 1` used runtime shape to reject spatial-flatten reshapes in the in-place crop path, but it also incorrectly rejects batch-squeeze reshapes when the runtime batch dim happens to be 1 (SwinTransformer layers.3, window_count=1) - **Resolution**: Use compile-time `output_pattern[0]` instead of runtime shape. `output_pattern[0] == -1` means batch-squeeze (allow), `0` or `1` means batch-preserved/spatial-flatten (reject) directly) - intel_gpu/src/graph/include/`reshape_inst.h` — `is_runtime_propagatable_padding()`, batch axis=0 block - intel_gpu/src/graph/graph_optimizer/`prepare_buffer_fusing.cpp` — `update_in_place_crop_padding_simple_data_format()`, build-time dyn_pad branch and runtime padding branch customer model) - $ pytest test_ovc_mo.py --modules pipelines/production/pytorch/heavy -k Pytorch_SwinTransformer --dynamism_type=None --log-cli-level INFO - SwinTransformer layers.3: input [3,1,24,49,32] → split axis=0 into 3 crops [1,1,24,49,32] → reshape [-1,24,49,32] (batch-squeeze, output_pattern[0]==-1) window_count=1 causes runtime reshape output shape[0]=1, which falsely matches the spatial-flatten rejection condition <img width="1937" height="626" alt="image" src="https://github.com/user-attachments/assets/a91b977a-64f6-40d9-9cb5-69c855456ed7" /> - [x] Is it a proper fix? (not a workaround) - [x] Did you include test case for this fix, if necessary? - [x] Did you review existing test that can be extended to cover this scenario? Which test did you review? - `in_place_crop_dynamic_batch_axis_split_with_reshape` (batch_squeeze, spatial_flatten variants) - [CVS-183289](https://jira.devtools.intel.com/browse/CVS-183289) Signed-off-by: Andrew Park <andrew.park@intel.com> Co-authored-by: peterchen-intel <19401820+peterchen-intel@users.noreply.github.com>
…-2f0404d Cherry-pick: [GPU] Fix in-place crop batch-squeeze detection to use output_pattern instead of runtime shape (openvinotoolkit#34878)
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