- ci-build-slowness-findings.md: the full investigation log — measured
phase breakdowns of the 4h05m baseline, the v121 lock convoy, the
badly-built official Binaryen Linux tarballs (4-13x slow asyncify),
allocator/THP/arm64 dead ends, and the validated 1h14m41s result.
- wasm-exceptions-experiment.md: -fwasm-exceptions would shrink the
asyncify set at the root (pcbnew 338 MB -> 92 MB raw) but is blocked
by an LLVM br_table codegen bug in emscripten 4.0.2; full resume
recipe + plumbing patch included.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
