- §17 rewritten: the call-crossing register-ORDER class is MATCHABLE with register
__asm__ pins + a scheduling barrier (byte-proven func_8012B8E4), not unsteerable.
The wall was a missing lever (the pins), not an impossibility. Recipe documented as
a TOOLKIT: triage with match_one -> reconstruct / array-decay / PINS / barrier.
- §16 cross-refs + hand-matching §8e corrected to match. The ONLY genuine stub-and-skip
left is the narrow-param loose-typing conflict (func_80146A6C).
- self-correction (P9/R14): I concluded 'unsteerable' before trying the pins; Drew's
hand-match-everything directive exposed the gap. Recorded honestly.
- canonical-sig layer (session 4): tools/census_conflict_callees.py + derive_canonical_sigs.py
-> a 20-extern byte-neutral block atop ov_SC01_077.c (LOCAL, not engine_core.h); census
conflict callees 20->0, blocked targets 24->0; gate pipeline now draft -> sig_unify (MANDATORY)
-> harvest_verify --chunk 1; fleet 136/136 byte-identical (R22), 55.51% (no regression)
- FINDING (R14/P9): the conflict wall is 7%-reach not ~2x; the 4 reach-134 circular targets are
ALL gcc-quirk/regalloc/layout-bound (0 banked); the high-reach core IS the quirk tail; struct
types are byte-neutral for matching (the wall is gcc codegen, not knowledge)
- leverage analysis: fleet % is function-count-weighted (size adds no %); "unblock many" = the
layer (declaration, not matching); reach is the lever (already reach-sorted); 247 tractable
reach-134 stubs ~ +3-4% projected
- GO/NO-GO: NO-GO on brute waves at the current ceiling; GO on a compiler-quirk research phase
(read gcc-2.7.2 source + Xenogears + the §10/regalloc classes, R17) -> then resume the wave
- docs: cookbook §16 corrected + hand-matching-process.md §8 (the layer + the finding + handoff)
- worklog archived -> phase-ends/logs/Phase17.md (R19); bumps 1.15.0 -> 1.16.0
- CURRENT_PHASE.md: new session-4 START HERE (build the canonical-sig layer, then
scale the wave); old demo-protocol START HERE marked superseded
- hand-matching-process.md S7: the Ultracode harvest wave (pipeline, calibration
result 60% match_one / 33% whole-binary / +0.47%) + THE CANONICAL-SIG WALL (the
60->33 gap is 100% sig conflicts; surgical per-callee canonicalization = ~2x lever)
- matching-cookbook.md S16: guided-hand-matching breakthrough + new idioms (mask-local,
shared-ret0 goto, v0/v1 coalescing) + the wave/canonical-sig finding (R16 flywheel)
- SETUP.md: DecompileFunctions.java (headless batch Ghidra-C pre-pass) in the inventory (R21)
Drew T