[AIG] Enhance longest path analysis with detailed timing statistics and JSON output #8644
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…nd JSON output This patch improves the AIG longest path analysis pass with: - Detailed timing level statistics showing delay distribution - Critical path details for top K fanout points - Path history with intermediate debug points - JSON output format option for machine-readable results - Improved documentation and command-line options The enhanced analysis provides more comprehensive timing information for debugging and optimizing AIG circuits, with both human-readable and machine-parseable output formats.
fabianschuiki
approved these changes
Jul 3, 2025
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| Option<"emitJSON", "emit-json", "bool", "false", | ||
| "Output analysis results in JSON format"> |
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| // RUN: circt-synth %s -output-longest-path=- -top counter | FileCheck %s | ||
| // RUN: circt-synth %s -output-longest-path=- -top counter -output-longest-path-json | FileCheck %s --check-prefix JSON |
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Nice to have - available.
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This patch improves the AIG longest path analysis pass with:
The enhanced analysis provides more comprehensive timing information for debugging and optimizing AIG circuits, with both human-readable and machine-parseable output formats. Human-readable output is align with ABC's print_level output to make it easy to compare results with ABC.