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Add squeeze v15 op spec (openvinotoolkit#26989)
### Details: - Add squeeze v15 op spec ### Tickets: - [*154021*](https://jira.devtools.intel.com/browse/CVS-154021)
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...entation/openvino-ir-format/operation-sets/operation-specs/shape/squeeze-15.rst
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| Squeeze | ||
| ======= | ||
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| .. meta:: | ||
| :description: Learn about Squeeze-15 - a shape manipulation operation, which | ||
| can be performed on one required and one optional input tensor. | ||
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| **Versioned name**: *Squeeze-15* | ||
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| **Category**: *Shape manipulation* | ||
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| **Short description**: *Squeeze* removes dimensions equal to 1 from the first input tensor. | ||
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| **Detailed description**: *Squeeze* can be used with or without the second input tensor. | ||
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| * If only the first input is provided, every dimension that is equal to 1 will be removed from it. | ||
| * With the second input provided, each value is an index of a dimension from the first tensor that is to be removed. Specified dimension should be equal to 1, otherwise it will be ignored and copied as is. | ||
| Dimension indices can be specified directly, or by negative indices (counting dimensions from the end). | ||
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| .. note:: | ||
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| - If index of the dimension to squeeze is provided as a constant input and it points to a dynamic dimension that might be `1`, and the *allow_axis_skip* attribute is ``false``, then the dimension is considered as squeezable. Therefore the rank of the output shape will be reduced, but not dynamic. If dynamic rank is expected for such case, *allow_axis_skip* attribute need to be set to ``true``. | ||
| - If the input with indices is empty or not provided, dynamic dimension compatible with `1` leads to dynamic rank of the output shape. | ||
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| **Attributes**: | ||
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| * *allow_axis_skip* | ||
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| * **Description**: If true, shape inference results in a dynamic rank if selected axis has value 1 in its dimension range. | ||
| * **Range of values**: ``false`` or ``true`` | ||
| * **Type**: ``boolean`` | ||
| * **Required**: *no* | ||
| * **Default value**: ``false`` | ||
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| **Inputs**: | ||
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| * **1**: Multidimensional input tensor of type *T*. **Required.** | ||
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| * **2**: Scalar or 1D tensor of type *T_INT* with indices of dimensions to squeeze. Values could be negative (have to be from range ``[-R, R-1]``, where ``R`` is the rank of the first input). **Optional.** | ||
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| **Outputs**: | ||
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| * **1**: Tensor with squeezed values of type *T*. | ||
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| **Types** | ||
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| * *T*: any numeric type. | ||
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| * *T_INT*: any supported integer type. | ||
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| **Example** | ||
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| *Example 1: squeeze 4D tensor to a 2D tensor* | ||
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| .. code-block:: xml | ||
| :force: | ||
| <layer ... type="Squeeze" version="opset15"> | ||
| <data allow_axis_skip="false"/> | ||
| <input> | ||
| <port id="0"> | ||
| <dim>1</dim> | ||
| <dim>3</dim> | ||
| <dim>1</dim> | ||
| <dim>2</dim> | ||
| </port> | ||
| </input> | ||
| <input> | ||
| <port id="1"> | ||
| <dim>2</dim> <!-- value [0, 2] --> | ||
| </port> | ||
| </input> | ||
| <output> | ||
| <port id="2" precision="FP32"> | ||
| <dim>3</dim> | ||
| <dim>2</dim> | ||
| </port> | ||
| </output> | ||
| </layer> | ||
| *Example 2: squeeze 1D tensor with 1 element to a 0D tensor (constant)* | ||
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| .. code-block:: xml | ||
| :force: | ||
| <layer ... type="Squeeze" version="opset15"> | ||
| <data allow_axis_skip="false"/> | ||
| <input> | ||
| <port id="0"> | ||
| <dim>1</dim> | ||
| </port> | ||
| </input> | ||
| <input> | ||
| <port id="1"> | ||
| <dim>1</dim> <!-- value is [0] --> | ||
| </port> | ||
| </input> | ||
| <output> | ||
| <port id="2" precision="FP32"> | ||
| </port> | ||
| </output> | ||
| </layer> | ||
| *Example 3: squeeze 1D tensor with 1 dynamic shape element to a fully dynamic shape* | ||
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| .. code-block:: xml | ||
| :force: | ||
| <layer ... type="Squeeze" version="opset15"> | ||
| <data allow_axis_skip="true"/> | ||
| <input> | ||
| <port id="0"> | ||
| <dim>-1</dim> | ||
| </port> | ||
| </input> | ||
| <input> | ||
| <port id="1"> | ||
| <dim>1</dim> <!-- value is [0] --> | ||
| </port> | ||
| </input> | ||
| <output> | ||
| <port id="2" precision="FP32"/> <!-- output with dynamic rank --> | ||
| </output> | ||
| </layer> | ||
| *Example 4: squeeze 2D tensor with dynamic and static shape elements to a static shape output, according to the opset1 rules* | ||
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| .. code-block:: xml | ||
| :force: | ||
| <layer ... type="Squeeze" version="opset15"> | ||
| <data allow_axis_skip="false"/> | ||
| <input> | ||
| <port id="0"> | ||
| <dim>2</dim> | ||
| <dim>-1</dim> | ||
| </port> | ||
| </input> | ||
| <input> | ||
| <port id="1"> | ||
| <dim>1</dim> <!-- value is [1] --> | ||
| </port> | ||
| </input> | ||
| <output> | ||
| <port id="2" precision="FP32"> | ||
| <dim>2</dim> <!-- assumes: actual value of <dim>-1</dim> is squeezable --> | ||
| </port> | ||
| </output> | ||
| </layer> | ||
| *Example 5: squeeze 2D tensor with dynamic and static shape elements to a dynamic shape output, according to the opset15 rules* | ||
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| .. code-block:: xml | ||
| :force: | ||
| <layer ... type="Squeeze" version="opset15"> | ||
| <data allow_axis_skip="true"/> | ||
| <input> | ||
| <port id="0"> | ||
| <dim>2</dim> | ||
| <dim>-1</dim> | ||
| </port> | ||
| </input> | ||
| <input> | ||
| <port id="1"> | ||
| <dim>1</dim> <!-- value is [1] --> | ||
| </port> | ||
| </input> | ||
| <output> | ||
| <port id="2" precision="FP32" /> <!-- Output with dynamic rank. Actual value of <dim>-1</dim> may or may not be squeezable --> | ||
| </output> | ||
| </layer> |