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When the CFG has no backedges (checked via CFGWalker::loopTops), evaluate queued blocks in a single reverse-postorder pass in WTOWorklist::run without constructing DomTree or WeakTopologicalOrdering. Benchmark results across 16 WebAssembly modules (3 iterations, interleaved): - --constraint-analysis: - Geomean: 1.610s -> 1.606s (-0.2%) - Total time: 64.36s -> 64.05s (-0.5%; dart_essentials: 2.92s -> 2.59s, -11.6%) - --rse: - Geomean: 0.870s -> 0.871s (+0.1%) - Total time: 26.10s -> 26.03s (-0.3%; dart_essentials: 2.00s -> 1.71s, -14.4%)
tlively
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a team
October 6, 2026 07:10
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When the CFG has no backedges (checked via CFGWalker::loopTops),
evaluate queued blocks in a single reverse-postorder pass in
WTOWorklist::run without constructing DomTree or
WeakTopologicalOrdering.
Benchmark results across 16 WebAssembly modules (3 iterations,
interleaved):