- main:func_80032A74 (422 ins, closeness 1): the residual is ONE reload-time slot at sp+0x48 (u16 draft = 422/422 code, DIFF 22 frame
rows; s16 draft = DIFF 1 at idx 244 lh vs lhu). Every post-parameter slot producer enumerated from gcc-2.7.2 (reload1.c:658 ghost
alter_reg / caller-save.c:249 area / reload1.c:879 invalid-equiv / reload1.c:3499 spill_stack_slot) and refuted on the bytes: combine's
newi2pat ghosts re-derive a narrow load and the site is lhu (no lb, no double load); a save area without sw/lw needs sched.c:4962
staleness and no register-only insn shares a block with a call; $t0 holds no pseudo; LO mult results retry into GR_REGS. Verdict
PROVED at 1 (pin kept with the verdict; ledger WALL-PROVED).
- NEW mechanism measured: local-alloc.c optimize_reg_copy_2 (tmp = x; tmp op= c; x = tmp) mints a ghost with stale refs, but after
regclass -> GR_REGS, allocated, no slot (P13/P14). 18 isolated reproducers, 0 draft variants; cookbook §501-M; accelerators (12).
- tools/ghost_census.py (new): ghosts in a .lreg dump with their class (ST_REGS => slot). tools/cc1_dumps.sh: prints the .frame line,
ins count, spill lines and the census; the under-counting standalone-(use) grep is gone. SETUP rows (R21).
- tools/backlog.py: load_best kept the EARLIEST record at equal closeness (docstring said latest) — the S84 row never rendered; fixed.
- CURRENT_PHASE.md: S84 log + refreshed 🛑 checkpoint (rows (b)(c)(d) next, then T5). No src/config/carve change; fleet check-all
218/218 rc 0 at the S84 preflight.
- tools/cc1_dumps.sh: run the pinned cc1 with -dr/-ds/-dj/-dc/-dl/-dg and count standalone
(use (reg)) insns in the .combine dump — each is one 8-byte never-referenced reload slot.
The NEAR-2 residual = 12 such orphans vs the target's 16, now ENUMERATED pseudo-by-pseudo
instead of inferred from ablations.
- The orphan mechanism, exact (combine.c:10835 + mips.md force_not_mem): every short-mem read
is a movhi+shift-pair triple; the fold orphans its ashift temp iff the HI reg carries an
extra HImode use and the death-note walk hits a label/jump. Single-use loads never orphan;
the head can never orphan (walk reaches insn 0).
- The zero-code +4 factory is byte-refuted: 18 new probe families x 3 placements (s16
respellings, cast truncations, <<16>>16 factories, placement sweeps, loop t/n, dossier-file
re-sweep) all land at vars=224-same-bytes or drift. p_optr reproduces the target's exact
16-orphan frame at +7 insns — opacity that defeats cse equally blinds num_sign_bit_copies;
fold-const closes the tree level. Three canonicalizers, one wall.
- Dossier NOTES.md updated with the S50 ledger; backlog klass -> WALL(P32) for both names.
- NOT banked: no 0-closeness draft exists. The dial draft (NEAR 2) remains the floor.
Drew T