The 'unsteerable' regalloc-order class is NOT unsteerable. Drew's directive (hand-match
everything) exposed the lever I'd skipped: explicit register pinning.
- func_8012B8E4 (the flagship circular reach-134 'unsteerable' fn): 21 -> MATCH via
* register pins: register s32 d __asm__("$16"); register s32 s1ang __asm__("$17")
-> FORCES the $s0/$s1 global allocation gcc otherwise density-orders the other way
* branch-polarity invert (§3-T4): 24->21
* explicit clamp temps (t=u6+0x1000; iVar4=u5-t): fixes the reassociation, 7->3
* scheduling barrier __asm__ __volatile__("" : : "r"(u5)): anchors the last sll, 3->MATCH
- byte-gated (harvest_verify, G3/P9) + propagated x134 (per-overlay gate); 134 byte-identical
- recipe = §10-family hand technique (pins + barriers); labor-intensive (per-fn register map
from the asm) but it WORKS -> the circular tail IS hand-matchable, not asm-only
- supersedes the T1-T5 'unsteerable' verdict; cookbook §17 + PhaseEnd to be revised accordingly
- banked 42 gate-proven SIG_FIXABLE_KR matches in ov_SC01_077 (of 48 predicted; 6 honestly
reverted by the whole-binary byte-gate, P9) + propagated 13 h_exact-shared x134 via
dedup_propagate (one body -> 134 overlays, each byte-gated, fail-closed)
- fleet byte-identical-from-source 54.48% -> 55.00% (+0.52%); REAL +1,778; dedup groups
1395 -> 1408; make check-all 136/136 byte-identical (R22); dedup-check 1408 validated/0 failed
- wall probe (R14): raw drafts 0/99 + sig_unify fails -> the K&R/sig_unify avenue is exhausted;
the residual conflict-class is ARITY_WALL (the §14e param-count dead-end) or structural (T4/T5)
- FIX a T1 classifier bug surfaced by verifying the wall vs the bytes: tu_compile_error captured
the baseline's pre-existing byte-NEUTRAL warnings ("makes integer from pointer", cc1 rc=0) and
mislabeled 99 fns LOOSE_TYPING_WALL; now keeps only non-warning errors -> there is NO loose-typing
wall, the real residual wall is ARITY_WALL=74. docs/wall-taxonomy.md amended with the correction.
- 134 overlay .c files carry the propagated DEFINE_func instantiations; a one-time full-fleet
make extract was required for the per-overlay propagation gate + check-all
- tools/sig_unify.py (NEW): unifies a draft's FULL signature set to the banked-canonical
decls — both callee externs AND the draft's OWN definition signature (return + param
types, body param-names preserved). Recovery for the standalone-MATCH residual: a probe
found 30/30 sampled failures were type conflicts, 0 false-positives. Gated 191 -> 32 verified.
- tools/dedup_propagate.py find_site FIX: the inline-def detector required the opening brace
ON THE SAME LINE as the signature, silently dropping every next-line-brace def from
propagation (sig_unify/permuter outputs + ~stragglers all session). Now accepts brace on
the same OR next line -> unlocked a 61-function propagation backlog.
- propagated 61 fns fleet-wide (incl. 32 sig-unify + the permuter win func_801508F8 +
earlier-dropped next-line-brace matches), all 134 byte-identical; dedup-check 1394/0
- R22 CLEAN fleet rebuild: 136/136 byte-identical. REAL 177501 -> 185646. Zero agent tokens.
- fix tools/build_engine_types.py to be ADDITIVE: merge new source types with the
types already in engine_types.h (a re-run after a prior --strip was destructive —
it dropped the ~34 already-migrated types and broke the build; caught + reverted)
- engine_types.h 34 -> 42 named types (the 8 from wave-1's struct-using matches);
inline defs stripped from ov_SC01_077.c (byte-neutral)
- dedup_propagate --auto-from: 8 of 15 struct-blocked matches now self-contained ->
propagated across all 134 overlays (byte-gated); 7 remain (anonymous/typedef'd types)
- R22 CLEAN fleet rebuild: 136/136 byte-identical; dedup-check 1333/0
- zero agent tokens (deterministic)
- canon_draft_decls recovery on the combined 505 quarantined drafts (285 small + 220 medium),
now canonicalizing against the much-larger banked symbol set: 47 verified (no API), 42
propagated fleet-wide (struct/local-type skipped), 134 overlays byte-identical; dedup
1141 -> 1183 groups, dedup_integrate --check 1183 validated / 0 failed.
- fleet REAL substantive 151,908 -> 157,541; byte-identical 44.64% -> 46.27%.
- R22 clean rebuild: 136/136 byte-identical, 0 extract failures.
- scoped the struct-using-shared-fn lever (read-only): 34 named struct/union types in 077,
ZERO same-name-different-layout collisions -> a shared-types-header is a clean path to
propagate the ~100 struct-using fns (next).
- gen_harvest_targets.py: now also resolves canonical DATA-symbol declarations per target
(scan the .s for D_XXXX refs -> `extern <type> D_XXXX;` from banked code) in addition to
callee function sigs — the §14c(c) fix at the source, so agents declare both functions and
data correctly and avoid the dominant remaining conflict class.
- v2 harvest (callee+data-sig-aware) on the 591 small still-stub call-heavy fns + a gap-fill
agent for 6 targets dropped by a connection-closed-mid-response failure (the retry-wave
misses truncated-non-null results). Gate: 306 verified (ov_SC01_077 1554 -> 1248 stubs).
- dedup_propagate.py: skip any struct/union-touching body — agents named structs with colliding
generic names (`struct S`/`struct vec`) inline, so two macros' types redefine/conflict when
instantiated in one overlay (ov_SC01_000 abort). 34 skip; struct-using shared fns stay banked
in 077 (shared-types-header follow-up).
- 281 functions propagated fleet-wide (134 overlays each, every overlay byte-gated); dedup
795 -> 1076 groups, dedup_integrate --check 1076 validated / 0 failed.
- fleet REAL substantive 105,764 -> 143,322; byte-identical 31.22% -> 42.14%.
- R22 clean rebuild: 136/136 byte-identical, 0 extract failures.
- cookbook §12: gap-fill is now a MANDATORY post-step for every multi-agent run (reconcile
produced-vs-expected: missing + truncated drafts) before gating.
- tools/canon_draft_decls.py: rewrites a quarantined harvest draft's extern/data
declarations to the banked-consistent set (functions from engine_core.h DEFINE
bodies / extern decls / inline defs; data from existing `extern <type> D_XXXX;`),
so a draft whose BODY is byte-correct (passes match_one) but whose DECLARATION
collided with already-banked code can re-gate cleanly. The whole-binary
harvest_verify byte-gate stays the sole arbiter — a semantics-changing
canonicalization just fails and reverts.
- recovered 19 of the 90 match_one-MATCH-but-conflicting quarantined failures
(no API — immune to the rate limiting), propagated fleet-wide, all 134 overlays
byte-identical; dedup 776 -> 795 groups, 0 failed.
- fleet byte-identical 30.48% -> 31.22%; ov_SC01_077 1574 -> 1535 stubs.
- R22 clean rebuild: 136/136 byte-identical, 0 extract failures.
- the remaining ~70 match_one-MATCH residual needs definition-widening (§14c(d),
narrow-return) or true data-type resolution — queued for the next pass, with the
un-started medium band (430) and the 54 genuine instruction-misses (permuter/§3a).
- tools/dedup_propagate.py: lift a matched body -> DEFINE_func_<ADDR>() macro in
src/shared/engine_core.h -> instantiate in place at every onboarded overlay sharing
that h_exact -> snapshot + per-overlay byte-gate (fail-closed revert) -> register in
config/dedup.us.yaml. Keyed by addr-int (sig lowercase vs splat func_%08X).
- proof: 4 medium funcs propagated across all 16 onboarded overlays; clean check-all
18/18 byte-identical; dedup_integrate 8 validated/0 failed; idempotent; negative test
(corrupt shared body) -> make check FAILS then restores
- Makefile: header-dependency tracking (cpp -MMD -MP + -include ) so editing a
shared header recompiles dependents — closes a stale-build/false-pass gap the negative
test exposed; output-neutral (R22 clean 18/18)
- structural self-check: a leftover INCLUDE_ASM stub is byte-identical, so the byte-gate
can't catch under-application -> assert DEFINE present + stub gone
- FINDING: 577 of ov_SC01_077's 785 matches are h_exact across all 134 overlays
(2.19 MB collapsible, already matched) -> T5 = bulk-propagate these + harvest the rest
- cookbook §14 (the propagation runbook + gotchas), SETUP tool inventory
- ghidra/ churn NOT staged (R23); build/asm/.run gitignored
Drew T