mirror of
https://github.com/Druthulu/BFM-decomp
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Drew T
adafeb13d6
Recomputed every backlog residual from the bytes (1,699 rows, -j 12, zero agent tokens) through the validated match_one path, deriving asm-subdir + -O0 from corpus.py. R34 cross-check PASSED (closeness agreed with masked_diff.structured_diff on all 1,610 built rows, 0 classifier errors); 89 nobuild rows REPORTED not dropped (R32). BUCKETS: redraft 707 | structural 528 | integration 315 | permuter 57 | unknown 3. 1. HONESTY CORRECTION: 707 of 1,610 (44%) are class SIZE-MISMATCH — the stored best-draft is a PARTIAL, an incomplete attempt logged with a closeness score (the func_80183814 666-of-5,122 shape). docs/backlog.md has been overstating readiness by ~44%. These route to a FRESH CRACK, not to a wall and not to the permuter. 2. ACTIONABLE: 315 entries are match_one MATCH *right now*, blocked only on the reconcile ladder — recomputing beat trusting the stored label because the tree moved since they were logged. ~108,959 gain-ins; top func_80174CB0 (16,482), func_801463A0 (13,534). §52b still applies: ~half of close=0 drafts fail the whole-binary gate, so these are CANDIDATES not banks. 3. The permuter bucket is 57/1,610 = 3.5% (Task-13B measured 7.7% and called targeting the problem). Extending the mutation set is CONFIRMED not the big lever — small, real, now bounded. 4. R34 again: 3 of 4 comparable labels DISAGREE with measurement — func_80140D68 / func_8012A328 / func_801549F8 recorded "schedule" but measure ADDRESSING -> cse. The grinder was aimed wrong. CONVERGENCE: T0.2 (8/8 failures PLUMBING, 0 walls) and T0.3b (315 integration) independently point at the SAME lever — the declaration/integration reconcile ladder, worth the 224,410-ins FREE pool AND ~108,959 backlog gain-ins. Two keys eliminated today; untried: canon_sig_reconcile v3.2 and reconcile_decls.py (the DATA-symbol analog — one T0.2 failure text was a DATA symbol).
75 lines
4.3 KiB
Markdown
75 lines
4.3 KiB
Markdown
# Autopsy — the permuter's failures, classified
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> Generated by `tools/autopsy.py report` from `.run/autopsy/residuals.jsonl` (built by `collect`, which recompiles every open backlog draft through `tools/match_one.py` and classifies the FULL residual with `tools/residual_class.py`).
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> A verdict here is a **candidate**, never a bank: the whole-binary byte-gate remains the sole arbiter (G3/P9).
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**Corpus:** 1699 record(s) · 1610 classified · status {'near': 1295, 'nobuild': 89, 'match': 315}
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## Buckets — what tool each failure actually wants
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| bucket | fns | reach-weighted | meaning |
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|--------|----:|---------------:|---------|
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| redraft | 707 | 1638 | the stored draft is NOT this function — un-attempted work misfiled as a near-miss; route to a fresh crack, not to a wall |
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| structural | 528 | 5067 | local mutation CANNOT introduce it — wants a C-level idiom, not CPU |
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| integration | 315 | 2454 | byte-correct standalone; blocked on plumbing (§58/§59 reconcile ladder) |
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| permuter | 57 | 855 | local mutation CAN reach it — permuter fuel (a plateau here is a **missing-transform** candidate) |
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| unknown | 3 | 140 | the residue the LLM tier is for |
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## Classes
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| class | fns | reach-weighted | bucket | permuter profile |
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|-------|----:|---------------:|--------|------------------|
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| SIZE-MISMATCH | 707 | 1638 | redraft | — |
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| LENGTH-DRIFT | 353 | 4223 | structural | — |
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| MATCH | 315 | 2454 | integration | — |
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| OPCODE-MIXED | 79 | 478 | structural | — |
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| WIDTH | 46 | 449 | structural | — |
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| IMM-OFFSET | 38 | 38 | structural | — |
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| BRANCH-POLARITY | 21 | 21 | structural | — |
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| ADDRESSING | 19 | 418 | permuter | cse |
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| DELAY-SLOT | 18 | 284 | permuter | schedule |
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| REGALLOC-PERM | 7 | 7 | permuter | regalloc |
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| IMM-VALUE | 4 | 4 | permuter | cse |
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| MIXED | 3 | 140 | unknown | — |
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## Top clusters (the batch-autopsy work items)
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One representative per signature diagnoses the whole cluster — that is what makes the LLM pass a *batch* autopsy rather than N per-function reads.
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| # | signature | fns | reach-weighted | example |
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|--:|-----------|----:|---------------:|---------|
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| 1 | `SIZE-MISMATCH/short` | 614 | 1545 | func_8017FF90 (close=4, 2 ins) |
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| 2 | `MATCH` | 315 | 2454 | func_80168B70 (close=0, 27 ins) |
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| 3 | `LENGTH-DRIFT/-1?` | 112 | 1047 | func_8018312C (close=5, 7 ins) |
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| 4 | `SIZE-MISMATCH/long` | 93 | 93 | func_8017E06C (close=6, 9 ins) |
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| 5 | `LENGTH-DRIFT/-2?` | 70 | 1272 | func_80190480 (close=3, 4 ins) |
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| 6 | `OPCODE-MIXED` | 67 | 466 | func_80161D20 (close=1, 14 ins) |
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| 7 | `LENGTH-DRIFT/1?` | 62 | 461 | func_80187074 (close=4, 7 ins) |
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| 8 | `LENGTH-DRIFT/2?` | 50 | 316 | func_80181B8C (close=5, 11 ins) |
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| 9 | `LENGTH-DRIFT/-7` | 32 | 32 | func_80184590 (close=9, 2 ins) |
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| 10 | `IMM-OFFSET/1` | 17 | 17 | func_801827C4 (close=1, 13 ins) |
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| 11 | `DELAY-SLOT/1` | 10 | 143 | func_8016BA68 (close=1, 29 ins) |
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| 12 | `BRANCH-POLARITY/bnez!=beqz` | 10 | 10 | func_80185E38 (close=1, 12 ins) |
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| 13 | `WIDTH/lhu!=lh` | 9 | 9 | func_80142A10 (close=1, 28 ins) |
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| 14 | `BRANCH-POLARITY/beqz!=bnez` | 8 | 8 | func_8017FDB0 (close=1, 12 ins) |
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| 15 | `OPCODE-MIXED/addressing,width` | 6 | 6 | func_8017F114 (close=5, 75 ins) |
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| 16 | `DELAY-SLOT/2` | 6 | 139 | func_80158638 (close=2, 87 ins) |
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| 17 | `ADDRESSING/lui!=addiu` | 6 | 139 | func_8012A328 (close=3, 60 ins) |
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| 18 | `WIDTH/sh!=lw` | 5 | 5 | func_8018AFDC (close=3, 8 ins) |
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| 19 | `WIDTH/lw!=lhu` | 4 | 270 | func_8015FBE0 (close=1, 58 ins) |
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| 20 | `LENGTH-DRIFT/+1` | 4 | 4 | func_8017DCE4 (close=3, 8 ins) |
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## Second oracle — deterministic verdict vs the recorded label
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The recorded `klass` is what a wave agent typed months ago; the verdict is derived from today's bytes. Neither is authoritative — **the disagreement is the finding**, and it is exactly the `mis-classified` bucket (a wrongly-labelled residual sends the directed search at the wrong levers, so it plateaus and then reads as a wall).
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- labelled records comparable: **4** · agree **1** · disagree **3**
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| fn | recorded label | label routes to | measured class | measured routes to |
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|----|----------------|-----------------|----------------|--------------------|
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| func_80140D68 | `schedule` | schedule | ADDRESSING | cse |
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| func_8012A328 | `schedule` | schedule | ADDRESSING | cse |
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| func_801549F8 | `schedule` | schedule | ADDRESSING | cse |
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