Class ov::pass::MarkDequantization

class MarkDequantization : public ov::pass::MatcherPass

MarkDequantization matches Dequantization subgraphs and marks Subtract and Multiply nodes with the dequantization attribute. Also if Convert nodes are part of the subgraph they might be marked with the disable_const_folding attribute.

If Convert -> Reshape/Unsqueeze are part of the Dequantization subraph, Convert and Reshape/Unsqueeze nodes will be swapped to eliminate Reshape/Unsqueeze in the next ConstantFolding.

Dequantization subgraph may have two forms: with and without Subtract. ZeroPoints and Scale might be present as subgraphs and include Convert ops.

Input       ZeroPoints
  │             │
  ▼             ▼
Convert   (opt) Reshape/Unsqueeze
      │      │
      ▼      ▼    Scale                        Input     Scale
      Subtract     │                            │         │
           │       ▼                            ▼         ▼
           │     (opt) Reshape/Unsqueeze       Convert  (opt) Reshape/Unsqueeze
           │      │                               │      │
           ▼      ▼                               ▼      ▼
           Multiply                               Multiply