russell@unturf.com bb1a6f002f diamond-scan: llvm/gcc/swift/webkit O(2^D) type hierarchy traversal ... swift-0001: QualifiedLookupRequest::evaluate (NameLookup.cpp:2860) pushes protocol superclassDecl onto BFS stack unconditionally — visited.insert() return not checked. Nearby ClassDecl arm (line 2833) is correctly guarded. Diamond protocol hierarchies sharing a class superclass trigger O(2^D) re-traversal on every qualified member lookup. Fix: check .second. llvm, gcc, webkit: CLEAN in available sparse-clone code.		2026-03-29 20:19:38 -04:00
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patch	diamond-scan: llvm/gcc/swift/webkit O(2^D) type hierarchy traversal	2026-03-29 20:19:38 -04:00
unit	whitepaper: 398/185 — wave6d (rails-0012..16, jsc-0001/2, vtk, sm-0002, redis/valkey-0003, helm-0002/3, k8s-0003)	2026-03-27 15:57:50 -04:00