parallel_gate merged 17 across 16 binaries, aborted on a real red (ov_SC04_011). Reverted that one
file (func_80181F0C); the other 17 fns verify green from a full clean rebuild.
CORRECTION to my own first read: I attributed the ov_SC04_011 failure to func_80182DCC, whose agent
had flagged a needed jtbl carve for that same binary. The merged-and-failing draft was actually
func_80181F0C — I inferred from the binary name matching the carve note instead of reading the diff.
The carve-prediction pattern is still real and worth acting on, on the evidence that does hold:
three agents this session named, in advance, the integration reason the whole-binary gate would
refuse a draft they had just matched in isolation (func_801588CC's §8e/§260-A tail-class jtbl carve;
func_80182DCC's jtbl_801ED970 8-word carve in tail19.data.s; func_8001AF34's JTBL_PADS residual).
Those are gate-side work, not drafting failures, and must not be re-drafted — that is how
ov_SC06_022:func_80181664 burned three slots.
parallel_gate merged 23 drafts across 22 binaries; its R22 caught 5 real failures
(ov_SC03_110:func_80180270, ov_SC06_025:func_8018098C, ov_SC03_024:func_8017DE8C+func_801838CC,
ov_SC02_037:func_801588CC, ov_SC07_010:func_8017EC6C). Reverted those five binaries' files; the
remaining 22 fns verify green from a full clean rebuild.
Lane conversion this round, same models and packs, drawn minutes apart:
O21 overlays 40 targets, 18-128 ins -> 34 self-reported MATCH (85%), 22 gated
M2 main 15 targets, 74-102 ins -> 4 self-reported MATCH (27%), 1 gated
Size does not explain it (M2's band sits inside O21's). Nearly every O21 MATCH cites an in-TU twin
or neighbour — overlays are ~134 near-copies of one engine, so a structural relative is usually
already banked. src/800.c is single-copy game code with no twin to lean on. Budget main at roughly
a third of the overlay rate, and reach for the permuter there rather than more drafting slots:
main's NEARs cluster at closeness 3-16, i.e. regalloc tail, not wrong code.
aprop_autodraft over regenerated A-prop cards (582 mechanical drafts), reloc_identity
pre-filter (509/582 AGREE), sweep_parallel gate across 107 binaries in 54m35s.
Result: 390 banked of 511 gated (76.3%).
This lane was invisible until the atlas KeyError fix earlier this session: member_lever
emitted the confidence value 'aprop-pure' that _CONF_RANK never contained, so atlas.py
died on the first group carrying such a vote and could not produce an atlas at all.
With it fixed the remap lever shows 235 groups / 812 instances / 46,240 instructions.
The new head plumbing class after the symbol-kind fix: `conflicting types for func_80175414` (27
member-rows). Byte-true DEF is `void func_80175414(s32 _arg0)` (its DEFINE_ macro). The fleet
declared it 1,845 times in four spellings, of which three are the SAME TYPE (parameter names do not
participate) — the outlier was 28 sites declaring `(void)`.
conform_decls REFUSED the naive conform and was right to: 29 ZERO-ARG CALL SITES exist across 28
files, so conforming the declaration alone turns each into `too few arguments` — a fleet-wide
COMPILE break the per-binary gate cannot see (the tool cites 138/140 binaries, measured). It named
the count, the consequence, why the cheap check misses it, and the flag that repairs it, then
forced the two-step: --cast-zero-arg-calls (29 sites cast to the 0-arg fn-ptr shape, §17a-1 — gcc
folds the cast of a known symbol to a direct jal, so it is codegen-neutral), then the conform.
Result: 1,845 declaration sites rewritten across 1,061 files, 0 non-canonical remaining (axis
complete, R32). R22 clean-fleet: check-all 213 passed / 0 failed of 213.
WORTH RECORDING AS A TOOLCHAIN STANDARD: this is the instrument that has not wasted a cycle today.
Every other one reported SUCCESS over a defect — a classifier that discarded every gcc-2.7.2 hard
error (no `error:` prefix), a diff that miscounted 116 data-bundled .s files, a --verified-out
truncated to zero bytes over 62 real banks, a --band default that reported "0 families" on a real
135-member family, and a scope stamp describing the filesystem instead of the run. conform_decls
reports FAILURE with a repair path. A guard must state its COVERAGE, not just its verdict; the
in-repo exemplars are this tool and the §53 jr interlock.
The one-line fix committed ahead of this run (CdFileLoc_80128C98 aliasing CdFileLoc) cleared the
largest remaining propagation-sweep class. Re-sweep: 138 member-matches banked, failures 875 -> 737,
`conflicting types for cdFileLocTable` gone entirely (136 -> 0).
Derived net (138 INCLUDE_ASM removed, 0 re-added) equals the report's 138 — they agree.
R22 clean-fleet: check-all 213 passed / 0 failed of 213.
Fleet 94.2 -> 94.3% instr / 87.9 -> 88.1% distinct / 96.15 -> 96.21% fn-count; stubs 13,780.
Residue reclassified — no symbol dominates any more: 227 PLUMBING-other, 125 DIFF (real byte
divergence, 17%), 93 CC1-FAIL(no-diagnostic), 26 memcpy, then a tail of small data-symbol
conflicts (D_80114F24 12, D_800AE620 11, D_800183E0 9, D_80126B58 6, D_80078EB4 6).
CC1-FAIL rose 77 -> 93 and that is NOT a regression: members that previously died earlier on the
cdFileLocTable conflict now reach a different compile error. Those 93 are hard gcc errors whose
text the sweep's classifier discards because it greps for `error:`, which gcc-2.7.2 never emits on
hard errors. That classifier is now the highest-value instrument fix left — three times today a
no-diagnostic verdict concealed something cheap.
scope_data_externs §8d drops the draft's decl of any symbol the TU already declares at file scope.
It keys on the SYMBOL, but a §37 asm-label ALIAS binds a DIFFERENT C identifier to that symbol:
the TU declares `D_801851BC`, it does NOT declare `tbl_D_80187044`. Dropping the alias left the
body referencing an undeclared name, which cc1 reports with no `error:` prefix — so the sweep
classified all 132 siblings as CC1-FAIL(no-diagnostic), i.e. as a codegen wall.
The bitter part: the alias exists PRECISELY BECAUSE the TU declares that symbol with a conflicting
type (a `void (*[])(void)` dispatch table vs this function's 20-byte-stride view). The drop rule
fired on exactly the declarations written to survive it. Why 1 of 2 died was fully determined:
tbl_D_80187048's symbol is not in the TU, so it demoted normally.
Fix: is_asm_alias() — an alias is demoted into the body, never dropped (the identifiers differ, so
it cannot collide with the TU's decl). Control-tested 6 ways incl. self-labels and plain externs.
Measured: func_80132018 3/135 -> 135/135; full re-sweep +16 more. Total +148 members.
R22 clean-fleet 213 passed / 0 failed of 213. tools-health OK, dedup-check 1949/0.
Fleet 96.11 -> 96.15% fn-count, 87.8 -> 87.9% distinct; stubs 14,120 -> 13,972 = -148 (2nd oracle).
CORRECTION TO MY OWN CLAIM (R14): after the probe I said the 58% aggregate was concealing a broad
problem. The re-sweep refuted it — only 16 more banks fleet-wide. The alias class really was one
family; the first read ("outlier") was right and the correction was wrong.
875 sweep failures classified: 231 PLUMBING-other, 141 DIFF (real divergence, only 16%),
136 `conflicting types for cdFileLocTable` (ONE symbol — biggest single class left),
77 CC1-FAIL(no-diagnostic), 26 memcpy, 12 D_80114F24, 11 D_800AE620, 9 D_800183E0.
STILL UNFIXED, and the most dangerous instrument left: the sweep's failure classifier greps for
`error:`, which gcc-2.7.2 never emits on hard errors. Every hard error therefore reads
CC1-FAIL(no-diagnostic). That is how a missing declaration looked like a codegen wall across 132
functions. rtu_match was fixed for this at T0(b); this classifier was not.
Task B, re-scoped from evidence. The 129 dedup_extend failures are 106 conflicting-types /
21 CC1-FAIL / 4 undefined-ref / 3 DIFF — real byte divergence is 2%, and memcpy is 17 of 106,
not the story. Direction reversed too: the byte-true DEF of func_80128ED8 is what the target
.c files already declare; engine_core.h's macro-local extern was the stub-era guess.
Conformed 8 axes to byte-truth (func_8012F14C 2843, func_8012E5CC 2052, func_8012F038 2214,
func_8014C568 1816, func_80128ED8 1524, func_8012C750 406, func_8012C0EC 50, func_80144A04 25).
R22 clean-fleet: check-all 213 passed / 0 failed of 213. Zero functions banked by design.
Tooling (R33/R35) — three guards that asserted completeness over a narrowed population:
- NEW tools/macro_draft.py: a deduped fn has no definition in any .c (body lives in a DEFINE_
macro), so conform_decls had been refusing the largest class it was built for.
- conform_decls skipped engine_core.h wholesale as "a defining TU": 10 stale externs survived
while 1,514 fleet sites moved, and it still printed "axis complete". Skip now scoped to the
defining macro's span.
- Return-axis compare was literal: typedef int/s32 and a missing `extern` faked a return change.
Now compares normalized types.
- §85 consumer scan under-reported (the dangerous direction): a cast between `=` and the call
hid `s0 = (s32 *)func_80144A04(...)`. Now classified by position, validated both ways.
Corrections to my own predictions (R14): the documented scalar-narrowing hazard was benign
across 2,052 sites; the breaks were arity (6 call sites, fixed with §17a-1 fn-ptr casts) and
the consumer-guard gap. A header-only first probe broke ov_SC01_000 — §85 is literal.
Not done, named: memcpy (builtin codegen), ApplyMatrixSV (no DEF), gte_SetRotMatrix (link bug),
func_80147364 (unparseable macro), D_800AE620/D_80126CC4 (data axis). Cookbook §159.
The S45p9 blocker is closed, and the recovery loop that kept it from finishing is rewritten.
- BANKED: dedup_propagate --auto-from ov_SC02_037 --recover -> 29 functions propagated,
141 overlays byte-identical, dedup 1920 -> 1949 groups, member instances 246,284 ->
249,099 (+2,815). make clean && extract-all && check-all -> 213 passed / 0 failed (R22).
- WHY IT FINISHED THIS TIME: gate_all -> gate_failures returns EVERY failure from the sweep
that already computed them, and the recovery loop resolves them all per round. Converged in
3 rounds; the old one-overlay-per-sweep design needed ~138. That reframes the S45 run — it
was not nearly done when it died, it had barely started.
- Batching did NOT cost capability: per-overlay necessity probes excluded four of the nine
culprits from only the 9 overlays that needed it (not all 138), and ov_SC07_006 was
RECOVERED by the Part-B caller-extern reconcile instead of excluded.
- Plan phase parallelised: 5 min -> 26 s, plan + skip classification byte-identical. Its
compiles_standalone temp file is per-call now — the fixed `t.c` was the same fake-isolation
class as match_one's shared --work dir (P28 T5), latent until something ran it in parallel.
- docs/accelerators.md (NEW, Drew 2026-08-07): the reusable-workflow ledger — what we learned
late that a future decomp should know on day one, each entry with when we found it, when it
WAS findable, what it cost, and the honest prerequisite where one exists.
The two functions the roadmap has carried as PERMANENT WALLS since Phase 24 are matched in all 138
overlays. Neither needed a siege. Both matched from drafts ALREADY ON DISK.
func_80178004 165 ins x 138 = 22,770 Phase 26: Fable5, ~477k tokens, "intrinsic 3-integer
regalloc wall". THREE stored drafts report match_one
MATCH today; one banked first try, no new work.
func_801412A8 198 ins x 138 = 27,324 close=29/110 since Phase 24. Matched from 1 of 31 stored
drafts + the §37/§124 alias.
WHY func_801412A8 LOOKED INTRINSIC (worth understanding — match_one is structurally blind to it):
the TU declares `extern int func_801412A8(int,int,int,int,int,int)` and its callers USE the return
(`param_1 = func_801412A8(...)`), while the byte-true definition is
`Prim_1412A8 *(Prim_1412A8 *, int, int, int, u16, u16)`. Narrow params cannot agree with an `int`
prototype and the no-prototype escape is illegal once a param promotes, so NEITHER side can move --
and the resulting byte difference is in the CALLERS, which match_one never compiles. The §37/§124
def-side asm-label alias decouples them: the TU decl keeps governing the call sites (codegen
untouched), the definition keeps its byte-true signature.
THEN PROPAGATION RETURNED 0/137 TWICE, both times a missing TYPE, not codegen:
family_remap's `_carry_macros` carries file-scope #defines but (a) NOT typedefs, and (b) is NOT
TRANSITIVE -- it brought addPrim_1412A8 and stopped, though that macro calls setaddr/getaddr and
getaddr casts to PTag_1412A8. Lifted Env_1412A8 / PTag_1412A8 / Prim_1412A8 + OT/getaddr/setaddr
into src/shared/engine_types.h (inside the include guard) -> 137/137, 0 failed.
MY ERROR, CAUGHT BY THE GATE: I lifted the typedefs but did not STRIP them from ov_SC01_077.c, so
they were declared twice and gcc-2.7.2 rejects a repeated typedef even when identical -- the lesson
already recorded at the foot of engine_types.h. R22 came back 139/140 with [FAIL] ov_SC01_077 (the
exemplar's own overlay). Stripped, re-verified, 140/140. A proper lift strips the source;
build_engine_types --strip does both and I did it by hand.
Also a measurement error worth recording: I checked whether the draft defined Prim_1412A8 with a
plain `grep -c` -- which matches inside `addPrim_1412A8` -- and briefly concluded the carry worked.
Substring false positive; the same shape as reading a `return` as a declaration.
VERIFIED: make clean && make extract-all && make check-all -> 140 passed, 0 failed of 140.
Fleet 12432941 -> 12483035 instr (+50,094 -- EXACTLY the two giants x138); fn-count +276;
instr-weighted 94.5% -> 94.8%. audit-digest OK. 0 NON_MATCHING (G4).
THE RULE THIS BUYS: re-measure a wall before respecting it, and SCAN every stored draft rather than
sampling (my first pass checked 8 of 31 and reported "closeness 40" for a function whose MATCH was
in the 9th). Four minutes of re-measurement was worth 50,094 instructions.
Drew T