feat(iZH): integrate rule-driven antenna checking and repair into EarlyRouter - #224
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Ayoubbelguellaoui wants to merge 6 commits into
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Ayoubbelguellaoui wants to merge 6 commits into
Ayoubbelguellaoui wants to merge 6 commits into
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- Add kBoth/kSkip to AFFixKind, hopUpPermitted(), applySelected() - classify() returns kBoth for metal PAR (hop-up first, diode fallback) - AntennaEngine uses applySelected() instead of always-fallback-to-diode - Phase A-D bug fixes: incremental index, skip-net overlap, orphan cleanup, via_master_idx preservation, materialize scope, via fallback - Manhattan L-shaped diode stub routing, jog overlap check, multi-row diode site search - RoutingContext::forTest() for unit testing - 6 strategy-selector tests proving violation/rule-driven selection - test_izh_antenna_fixer and test_izh_antenna_checker pass
ZhishengZeng
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shuyulun01
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ZhishengZeng
September 11, 2026 04:13
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Thanks, @Ayoubbelguellaoui ! This looks like a substantial change. We may need some time to go through it. |
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Of course, reliability is what matters most ! @ZhishengZeng |
- Log touched_nets, total_signal_nets, elapsed_ms per fix iteration - Add antenna benchmark test for violation/net/timing reporting
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This PR moves antenna violation detection and repair into iRT's EarlyRouter. EarlyRouter catches and fixes violations mid-route instead of leaving them for a separate pass to find after routing finishes.
EarlyRouter reads antenna rules from LEF/IDB and picks a repair strategy for each violation: hop-up when it's viable, diode insertion otherwise. AntennaFixer validates the repair against existing wires and vias before applying it. AntennaEngine then re-verifies only the nets that changed.
A post-routing checker only reports what already broke; this catches and repairs it while EarlyRouter still owns the route.