RouteRTL Report Analyzer

The report-analyzer suite provides utilities for parsing and filtering Vivado implementation reports. It extracts actionable insights from verbose vendor output.

Tools

Control Set Analyzer

Parses control_set_detail.rpt to identify high-fanout control sets and suggest optimization targets.

python filter_control_sets.py control_set_details.rpt \
  --min_sets 10 --max_ratio 25 --sort merit --desc

Flags:

• --min_sets N — Only show groups with ≥ N control sets
• --max_ratio N — Filter by maximum clock-enable ratio (%)
• --sort merit|ratio|count — Sort results by optimization priority
• --desc — Descending order

Generating the Input Report (Vivado TCL):

report_control_sets -verbose -sort_by {clk set} \
  -hierarchical -hierarchical_depth 1 \
  -cells [get_cells *sniffer_gather*] \
  -file sniffer_gather_cs.rpt

Replication (register duplication) is bad for reducing control sets. See AMD UG949.

Utilization Filter

Extracts per-module resource utilization from hierarchical reports.

python utilization_filter.py \
  ../../reports/utilization/hierarchical_utilization.rpt \
  spisniffer

Pass a module name to get its specific utilization breakdown (LUTs, FFs, BRAMs, DSPs).

Integration

Both tools work on reports generated by rr impl or rr npm-synth. The report files are typically found in reports/control_sets/ and reports/utilization/.