java-topology/defects/gcc/patch
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
..
CLEAN.md diamond-scan: llvm/gcc/swift/webkit O(2^D) type hierarchy traversal 2026-03-29 20:19:38 -04:00
gcc-0001-gcov-blocked-map.patch whitepaper: re-add 10 missing entries + 11 new defects this session, count 578→590; rebuild PDF 2026-03-27 22:18:31 -04:00
gcc-0002-gimple-range-path-hashset.patch whitepaper: re-add 10 missing entries + 11 new defects this session, count 578→590; rebuild PDF 2026-03-27 22:18:31 -04:00