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* interchange: clusters: always get cell bel map and add assertsAlessandro Comodi2021-06-111-23/+13
| | | | Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>
* interchange: run clang formatterAlessandro Comodi2021-06-111-21/+17
| | | | Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>
* interchange: clusters: adjust commentsAlessandro Comodi2021-06-111-10/+12
| | | | Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>
* interchange: add support for generating BEL clustersAlessandro Comodi2021-06-111-0/+584
Clustering greatly helps the placer to identify and pack together specific cells at the same site (e.g. LUT+FF), or cells that are chained through dedicated interconnections (e.g. CARRY CHAINS) Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>