Formerly we were using Placement::Area::TrackAvoid() to shift cells terminals
out of the way of the reserved vertical track. With double height cells,
this is coming more complex and due to heavy tracks uses in some cells,
the shift required may becomes too great. Instead, we place filler cells
just underneath the reserved track to prevent their usage. This is a
supplemental constraint on the router, but the new version manage it
correctly.
* New: In cumulus/block.spares.Spares.trackAvoid() to place filler cells
under a given vertical area.
* Change: In LefImport::_pinCbk(), if a pin has "USE POWER" or "USE GROUND"
make it a global signal (previously flagged only "!" appended to name).
* Change: In LefImport::_pinStdPostProcess() do not try to find "on grid"
components for supply nets, just make all their components externals.
* Change: RoutingGauge in KatanaEngine::annotateGlobalGraph(), when
accounting for obstacles, skip new types of RoutingGauges that
are not accounted either when computing initial edge capacity in
EdgeCapacity CTOR. Now only take into account the "Default" kind.
* New: In LefImport::LefParser, add support for LEF Polygons that are
translated into Hurricane Rectilinears.
* Change: In LefImport::setMergeLibrary(), the default behavior for the
LEF parser is to create a new separate library under LEF/<lib_name>
for each file. But if the various cells are put each one in it's own
cell, this is suitable. So we can now set a library beforehand into
which they will be all put.
* New: in CRL/technos.node180.gf180mcu, configuration files for the
GF180MCU open PDK.
* New: in cumulus/designflow.technos, added a setupGF180MCU_GF() to
initialize the GF PDK.
Introduce a new kind of flag "NonPrefOnVSmall" to mark non-preferred
segments anchoreds on small terminals (i.e. punctual). They should have
absolute priority over segments in prefered direction.
* New: In boostrap/FindBootstrap.cmake, add a macro setup_qt() to
share Python detection across the various tools.
This macro takes into account the USE_MANYLINUX variable to
slightly change the Python detection. On a "normal" system we
look for "Development" (search for dynamic libraries) while under
manylinux we look for "Development.Module"(static linking).
* Change: In bootstrap/ccb.py, add a new option --manylinux.
* Change: Cleanup in the various CMakeLists.txt to use setup_qt().
Jean-Paul Chaput
Robert Taylor
Gabriel Gouvine