
Contributed to The-OpenROAD-Project/OpenROAD by developing a buffer placement clamping utility that ensures buffers are inserted within core boundaries, validated through expanded test coverage. Addressed stability and reliability by refactoring driver input handling to use timing arcs, preventing crashes during path pin collapse, and reinforcing path management against stale-pointer issues. Enhanced repair flow robustness with invariant journal handling and comprehensive regression testing. Improved net integrity by updating SwapPinsMove to respect 'don't touch' nets, avoiding unintended disconnections, and refined violation counting accuracy in LastGasp. Work leveraged C++, Verilog, and CMake, emphasizing debugging, code optimization, and automated testing practices.
Delivered reliability, stability, and test coverage enhancements for The-OpenROAD-Project/OpenROAD in April 2026. Implemented core-area buffer placement clamping with a new clampLocToCore utility and test coverage; hardened driver input handling by deriving inputs from timing arcs (prevArc) to prevent crashes when path pins collapse; resolved repair flow crash scenarios with invariant journal handling and expanded regression tests; reinforced path management against stale-pointer issues with prevArc-based port resolution and a suite of regression tests; enhanced net integrity in SwapPinsMove by honoring dont-touch nets, preventing unintended disconnections; and improved LastGasp violation counting accuracy to reduce double-decrements.
Delivered reliability, stability, and test coverage enhancements for The-OpenROAD-Project/OpenROAD in April 2026. Implemented core-area buffer placement clamping with a new clampLocToCore utility and test coverage; hardened driver input handling by deriving inputs from timing arcs (prevArc) to prevent crashes when path pins collapse; resolved repair flow crash scenarios with invariant journal handling and expanded regression tests; reinforced path management against stale-pointer issues with prevArc-based port resolution and a suite of regression tests; enhanced net integrity in SwapPinsMove by honoring dont-touch nets, preventing unintended disconnections; and improved LastGasp violation counting accuracy to reduce double-decrements.

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