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* HeAP: Make strict legalisation wirelength driven where neededDavid Shah2019-03-221-6/+62
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Use for ECP5 as well as iCE40David Shah2019-03-221-9/+20
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Implement 'all+rotate' HeAP strategyDavid Shah2019-03-221-27/+53
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Weight arcs by criticality for timing-driven placementDavid Shah2019-03-221-6/+18
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add multithreadingDavid Shah2019-03-221-27/+24
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: fine tuningDavid Shah2019-03-221-28/+100
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add performance countersDavid Shah2019-03-221-3/+27
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add SA-based iterative refinement after APDavid Shah2019-03-221-22/+40
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Spreading working acceptablyDavid Shah2019-03-221-64/+51
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Make cut-based spreading recursiveDavid Shah2019-03-221-17/+56
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Cut peturbation, binning and intra-bin linear spreadingDavid Shah2019-03-221-19/+132
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Cut finder for spreadingDavid Shah2019-03-221-18/+130
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Region finder for spreading and strict legaliserDavid Shah2019-03-221-36/+454
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Fix how initial placement handles chainsDavid Shah2019-03-221-9/+67
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Successful solver converganceDavid Shah2019-03-221-21/+95
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add TAUCS wrapper and integrationDavid Shah2019-03-221-1/+46
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Initial infrastructureDavid Shah2019-03-221-0/+366
Signed-off-by: David Shah <dave@ds0.me>