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Phase 16. Sanitiser matrix

FieldValue
MEPMEP-45 §Phases · Phase 16
StatusNOT STARTED
Started
Landed
Tracking issue
Tracking PR

Gate

Full Phase 1-15 fixture corpus compiles + runs clean under ASan, UBSan, TSan, MSan, LeakSan on x86_64-linux-gnu and aarch64-darwin.

Goal-alignment audit

To be written before sub-phase 16.0 starts. Sanitiser clean is the strongest internal correctness signal short of formal verification; the user-facing payoff is "no UB in your shipped binary". Aligns.

Sub-phases

#ScopeStatusCommitPR
16.0ASan + LeakSan clean on full corpus, both hostsNOT STARTED
16.1UBSan clean (signed overflow, alignment, OOB shifts, null deref)NOT STARTED
16.2TSan clean on streams/agents corpusNOT STARTED
16.3MSan clean on Linux (Apple-silicon MSan unsupported upstream)NOT STARTED
16.4Build profile --debug wires sanitisers; CI nightly job runs the matrixNOT STARTED

Decisions made

Fill in along the way.

Deferred work

KCFI / CFI sanitiser integration: shipped under --secure profile in transpiler3/c/build/profile_secure.go.

Closeout notes

Fill in after gate green.