When physical optimization is skipped on a candidate primitive cell, the PHYS_OPT_MODIFIED property of the cell is updated to reflect the skipped optimizations. When multiple optimizations are skipped on the same cell, the OPT_SKIPPED value contains a list of skipped optimizations.
- Architecture Support
- All architectures
- Applicable Objects
- The PHYS_OPT_SKIPPED attribute is placed on the cells.
Values
The following table lists the OPT_SKIPPED property value for the various
opt_design
options:
phys_opt_design Option | PHYS_OPT_SKIPPED Value |
---|---|
-fanout_opt | FANOUT_OPT |
-placement_opt | PLACEMENT_OPT |
-slr_crossing_opt | SLR_CROSSING_OPT |
-rewire | REWIRE |
-insert_negative_edge_ffs | INSERT_NEGEDGE |
-critical_cell_opt | CRITICAL_CELL_OPT |
-dsp_register_opt | DSP_REGISTER_OPT |
-bram_register_opt | BRAM_REGISTER_OPT |
-uram_register_opt | URAM_REGISTER_OPT |
-shift_register_opt | SHIFT_REGISTER_OPT |
-force_replication_on_nets | FORCE_REPLICATION_ON_NETS |
-clock_opt | CLOCK_OPT |
Syntax
This is a read-only property.
get_property PHYS_OPT_SKIPPED [get_cells cell_name]
Affected Steps
- Implementation