perf(fill): avoid redundant bounds recomputation

2026-09-25 21:45:03 -04:00
parent 4ec92c95ec
commit 4553f8afad
10 changed files with 483 additions and 12 deletions
@@ -49,6 +49,8 @@ The group-pattern measurement also compares default scoring with a custom compar

 The extents measurement exercises repeated column rebuilding with a closed triangle at zero and positive spacing. It times the synchronous production fill and reports current-thread allocations; the frozen legacy implementation is used only for correctness checks outside timing. Run only that case with `--filter "FullyQualifiedName~Extents_ReportsRepeatedColumnRebuilds"`. Extents behavior, overlap-fallback, and Debug boundary-preparation checks use `--filter "FullyQualifiedName~FillExtentsTests|FullyQualifiedName~StrategyOverlapTests"`. Finite nonnegative spacing uses the equivalent bounding-box pitch without discarded vertical boundary preparation; negative/nonfinite spacing retains the legacy calculation rather than adding validation.

+The synchronous rotated-pattern construction control uses a 32-part native-arc group at angles 0 and 0.37. Run it with `--filter "FullyQualifiedName~RotatedPattern_ReportsBoundsConstruction"`. Task 3 reuses the extents benchmark above; Debug `--filter "FullyQualifiedName~BoundsWork"` checks part-bounds work. Only three extents recomputations were removable: anchor, vertical-shift, and group-clone recomputations remain because removing them changes exact floating-point layouts. See the measured report for the partial-delivery evidence and inconclusive timing results.
+
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