rsz: fix hold-buffer count reset on repair_timing -hold rollback#10835
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repairEndHold() reset inserted_buffer_count_ to 0 whenever a single hold-buffer insertion was rolled back, instead of decrementing it by one. Each insertion is exactly one journalBegin()/makeHoldDelay() pair (count incremented once); journalRestore() only undoes that single insertion, not any buffer committed earlier in the same repair_hold run. So the running total (and therefore the final "Inserted N hold buffers" line, the per-iteration table, and the max_buffer_count safety valve) no longer reflected reality once any rollback occurred. Signed-off-by: Minju Kim <mkim@precisioninno.com>
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maliberty
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Jul 7, 2026
| && setup_slack_after < setup_margin)) { | ||
| resizer_->journalRestore(); | ||
| inserted_buffer_count_ = 0; | ||
| inserted_buffer_count_--; |
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RepairHold::makeHoldDelay can return early in which case this would be wrong.
Rework the repair_timing -hold buffer accounting so the counters are updated only when a trial insertion is committed (journalEnd), mirroring GlobalSizingPolicy's accept-only accounting. makeHoldDelay now returns a HoldMoveStats value instead of mutating inserted_buffer_count_ and resize_count_ as a side effect, so an early return or a rolled-back insertion contributes nothing. This supersedes the earlier decrement-on-rollback, which assumed makeHoldDelay always incremented exactly once and left resize_count_ inflated on rollback. Apply the same fix to RecoverPower: a downsize that is rolled back (journalRestore) no longer inflates resize_count_; the count is bumped only at the journalEnd commit points. Signed-off-by: Minju Kim <mkim@precisioninno.com>
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Summary
repairEndHold()resetinserted_buffer_count_to0on a rolled-back hold-buffer insertion instead of decrementing by one.journalBegin()+makeHoldDelay()pair, incrementing the count once.journalRestore()only undoes that single insertion, not any buffer committed earlier in the same run — so--exactly cancels the one insertion just attempted, while= 0wiped out every buffer counted so far.Inserted N hold buffersline, the per-iteration table, and defeated themax_buffer_percentsafety valve (it could never trip).Type of change
Impact
repair_hold*goldens unaffected).Verification
rsz.repair_hold*ctest group (19 tests) — all pass.Related Issues
Fixes The-OpenROAD-Project-private/OpenROAD-flow-scripts#1737