docs: MachineBlockPlacement part 2 — static probabilities and PGO - #11
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Follow-up to the -O2 vs -O1 parse-loop case study: branch mix, missing branch_weights without PGO, PGO matrix on Clang 18, artifact bundle and revalidate script. Links part 1 and fixes the articles index row. Co-authored-by: Cursor <cursoragent@cursor.com>
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Sep 3, 2026
Merge pull request #11 from compilersutra/docs/mbp-wrong-bet-part2
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Summary
branch_weightsrestore O1-like misses.revalidate.sh, andrun_pgo_matrix.shunderstatic/files/articles/machineblockplacement-wrong-bet-static-probabilities-pgo/.Test plan
./scripts/revalidate.shfrom artifact bundle — correctness PASS, Clang 18 shows ~2.6× branch misses at-O2, PGO fixes layoutnpm run build— site builds; both articles present underbuild/docs/articles//docs/articles/machineblockplacement-wrong-bet-static-probabilities-pgoand part 1 cross-linksMade with Cursor