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BFM-decomp/docs/backlog.md
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Drew T 72a5da614b docs(phase-21): giants are near-misses not plumbing-blocked (R14) — func_80153E00 cracked via scalar-data-cast
- COOKBOOK §23: the giants compile+link clean; match_one over-predicts (standalone + masks relocs);
  diagnose each via .run/diag_funcdiff.py (linked-ELF per-fn objdump diff). func_80153E00 was 1/195 off.
- the scalar-data-signedness CAST *(u16*)&D_8011DB0C (data analog of cast_call_sites): keep canonical
  extern s16, cast the read -> gcc folds to lhu, no decl conflict, survives sig_unify. Refutes §20
  'data-cast moot' (which only checked struct/union, not scalar signedness).
- CURRENT_PHASE handoff updated; func_80153E00 banked x134 (fleet 62.27->62.31%, commit commit:0260).
2026-06-23 19:39:18 -06:00

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Backlog — automation near-misses for hand-finishing

Generated by tools/backlog.py render from .run/backlog.jsonl. These are functions the Phase-21 automation got close on but did NOT byte-match. The whole-binary byte-gate is the sole arbiter (G3/P9): byte-matches bank and are NOT listed here — only genuine near-misses/blockers are. Ranked by hand-session priority: reach (×N propagation leverage) → closeness (match_one mismatch count, lower = closer) → size. Each row's best_draft is the closest C the machine reached — resume from there.

Open near-misses: 229 · by status {'near': 164, 'failed': 65} · by class {'WAVE': 20, 'plumbing': 42, 'other': 14, 'schedule': 43, 'loose-typing': 2, 'struct': 49, 'loop-guard': 2, 'regalloc-order': 42, 'remat': 3, 'iv-combine': 3, 'GIANT': 9}

# addr reach class nins status closeness where it stuck best draft
1 func_80174684 134 WAVE 8 near 0 match_one MATCH but gate rejected (declaration/TU plumbing) .run/backlog_drafts/func_80174684.c
2 func_8015BE94 134 plumbing 12 near 0 none — MATCH .run/backlog_drafts/func_8015BE94.c
3 func_801732C4 134 other 12 near 0 none — MATCH (param survives first call → $s0; ghidra-C order is correct) .run/backlog_drafts/func_801732C4.c
4 func_8017331C 134 plumbing 12 near 0 none — MATCH (param_1 saved to $s0 across first call, passed to second) .run/backlog_drafts/func_8017331C.c
5 func_80173374 134 plumbing 12 near 0 none — MATCH expected (param_1 lives across first call → naturally lands in $s0) .run/backlog_drafts/func_80173374.c
6 func_80174554 134 plumbing 12 near 0 none — MATCH (clean stub; param_1 reused in $a0 across first call, saved to $s0 for second) .run/backlog_drafts/func_80174554.c
7 func_8014C568 134 plumbing 13 near 0 none — MATCH expected; straightforward ratan2 wrapper with two s16 deltas & 0xFFF .run/backlog_drafts/func_8014C568.c
8 func_80161208 134 plumbing 14 near 0 none — MATCH expected (param saved across call → natural $s0, no pin needed) .run/backlog_drafts/func_80161208.c
9 func_801542A4 134 plumbing 14 near 0 none — MATCH expected (simple stub: field stores + tail call) .run/backlog_drafts/func_801542A4.c
10 func_8016F0AC 134 plumbing 14 near 0 none — MATCH (expected; address CSE'd into $s0 across both calls) .run/backlog_drafts/func_8016F0AC.c
11 func_801653B8 134 plumbing 15 near 0 none — MATCH expected (simple call-crossing wrapper, param saved in $s0) .run/backlog_drafts/func_801653B8.c
12 func_8016E778 134 plumbing 20 near 0 none — MATCH (build-word spread + 3-halfword buffer, two stack addrs passed) .run/backlog_drafts/func_8016E778.c
13 func_80172C50 134 plumbing 20 near 0 none — MATCH (unaligned 8-byte memcpy + tail call) .run/backlog_drafts/func_80172C50.c
14 func_8016BF50 134 schedule 22 near 0 none — MATCH; short buf[3] keeps all 3 stores live + hoisting (int)(p+0x34) into a local .run/backlog_drafts/func_8016BF50.c
15 func_80166244 134 plumbing 22 near 0 none — MATCH expected (single tail-call STUB) .run/backlog_drafts/func_80166244.c
16 func_80146C3C 134 loose-typing 23 near 0 none — MATCH .run/backlog_drafts/func_80146C3C.c
17 func_80162CCC 134 plumbing 23 near 0 none — MATCH expected; direct translation, psVar1 as u16* gives lhu, $s0=param_1 survives both calls .run/backlog_drafts/func_80162CCC.c
18 func_801733FC 134 struct 25 near 0 none — modeled on sibling func_80173460 (packed 8-byte struct copy + two s16=1 stores) .run/backlog_drafts/func_801733FC.c
19 func_80160F00 134 plumbing 28 near 0 none — MATCH (straight-line STUB; $s0 holds param_1 across calls naturally) .run/backlog_drafts/func_80160F00.c
20 func_801661CC 134 loop-guard 30 near 0 none — MATCH (branch-polarity §3-T4: beqz fall-through = func_80146C3C arm; if(!=0){func_80146C3C}else{func_800D22E4;shifts}) .run/backlog_drafts/func_801661CC.c
21 func_8015ADB0 134 plumbing 31 near 0 none — MATCH (simple straight-line: clamp byte field, 4 calls in order, global OR) .run/backlog_drafts/func_8015ADB0.c
22 func_8014A51C 134 schedule 32 near 0 none — MATCH (32 ins, relocation-masked) .run/backlog_drafts/func_8014A51C.c
23 func_801495C4 134 regalloc-order 34 near 0 none — MATCH expected (cloned byte-matched sibling func_8014964C recipe: $16 pin + asm barriers force param_2→$s0 and rematerialize &in/&mid/mtx) .run/backlog_drafts/func_801495C4.c
24 func_80151664 134 plumbing 35 near 0 none — MATCH (35 ins, relocation-masked); canonical externs kept, call-site casts only .run/backlog_drafts/func_80151664.c
25 func_801522CC 134 plumbing 41 near 0 TBD — first compile; func_80153C18 canonical is (void) but target sets $a0=$s0 in its delay slot (call-site cast) .run/backlog_drafts/func_801522CC.c
26 func_801497A8 134 regalloc-order 47 near 0 none — MATCH. $s1 pinned to D_80078E78 base; result accumulator + masked .run/backlog_drafts/func_801497A8.c
27 func_801483E8 134 struct 50 near 0 none — MATCH .run/backlog_drafts/func_801483E8.c
28 func_8015F380 134 plumbing 50 near 0 none — expect MATCH (single call-crossing local pinned to $s0) .run/backlog_drafts/func_8015F380.c
29 func_8016EFC8 134 schedule 51 near 0 none — MATCH (51 ins). Temp u32 v = *a0 / 0x4000000; hoists the load to ins 0 and .run/backlog_drafts/func_8016EFC8.c
30 func_80156ECC 134 plumbing 55 near 0 none — MATCH (clean reconstruction; 3 call-crossing structs in s1/s2/s4, lh/lhu pair) .run/backlog_drafts/func_80156ECC.c
31 func_801758FC 134 schedule 55 near 0 none — MATCH (55 ins) .run/backlog_drafts/func_801758FC.c
32 func_801759D8 134 schedule 56 near 0 none — MATCH (56 ins) .run/backlog_drafts/func_801759D8.c
33 func_80147E44 134 regalloc-order 67 near 0 none -- MATCH (67 ins). $s1/$s0/$s3/$s2 pins ($17/$16/$19/$18) + 3-pointer reload .run/backlog_drafts/func_80147E44.c
34 func_80164418 134 struct 70 near 0 none — MATCH (s16 stack array forces the spill; 2nd ratan2 reuses /dy/ in $a1) .run/backlog_drafts/func_80164418.c
35 func_80166054 134 regalloc-order 94 near 0 none — MATCH (94 ins). Pins: param_1->$s2, angle->$s0, shift->$s1, r0->$s3, .run/backlog_drafts/func_80166054.c
36 func_801463A0 134 struct 101 near 0 none — MATCH (101 ins, match_one); real symbol names; misaligned 8B copy + s16 stores + masked B9C last .run/backlog_drafts/func_801463A0.c
37 func_80167714 134 regalloc-order 104 near 0 none — MATCH (104 ins) .run/backlog_drafts/func_80167714.c
38 func_80169228 134 regalloc-order 105 near 0 none — MATCH (105 ins, relocation-masked). Key levers: arg0/p pinned $s1/$s0, .run/backlog_drafts/func_80169228.c
39 func_80174CB0 134 regalloc-order 123 near 0 none — MATCH (match_one 123/123). Levers: (1) §21 one combined stack struct {s32 a[5]; ...} .run/backlog_drafts/func_80174CB0.c
40 func_80178004 134 regalloc-order 165 near 0 none — MATCH (full register pins per sibling func_80177EA4; running-ptr $s2 to stop unroll-rebase; .run/backlog_drafts/func_80178004.c
41 func_80163C2C 134 regalloc-order 167 near 0 none — MATCH (167 ins) .run/backlog_drafts/func_80163C2C.c
42 func_8015126C 134 regalloc-order 254 near 0 none — MATCH (254 ins, relocation-masked) .run/backlog_drafts/func_8015126C.c
43 func_8016F0E4 134 plumbing 26 near 1 none — MATCH (26 ins); natural C form, param_1 auto-allocated to $s0 .run/backlog_drafts/func_8016F0E4.c
44 func_8014F3E8 134 WAVE 32 near 1 WAVE: 1 mismatch .run/backlog_drafts/func_8014F3E8.c
45 func_80177AD4 134 regalloc-order 34 near 1 1 ins — loop-bound shift reads loop-carried $a3 (sll v0,a3,16) vs target's dying copy $v0 (sll v0,v0,16); gcc CSE canonicalizes the two equal-valued regs to the loop-carried one. IV-combine (§20) CRACKED via $a2/$a3 pins (was 31-mismatch "stub"). .run/backlog_drafts/func_80177AD4.c
46 func_801775E0 134 regalloc-order 67 near 1 1 ins — target sb $v0,0x6($s0) vs mine sb $v0,26($s1) (same store P1+0x1a; gcc address-CSE picks $s1 base not the recomputed $s0); all else byte-identical .run/backlog_drafts/func_801775E0.c
47 func_8014FFDC 134 struct 93 near 1 none — MATCH .run/backlog_drafts/func_8014FFDC.c
48 func_80158638 134 plumbing 87 near 2 none — MATCH (proxy); callee externs are plain func_, gate's canon/cast passes own them .run/backlog_drafts/func_80158638.c
49 func_80171FFC 134 regalloc-order 40 near 3 none — MATCH (40 ins). Key: func_8017248C takes (a0,a1); calling it with .run/backlog_drafts/func_80171FFC.c
50 func_801466F0 134 plumbing 24 near 4 none — MATCH (struct param-spill + branch-polarity) .run/backlog_drafts/func_801466F0.c
51 func_80147364 134 remat 30 near 4 none — MATCH (30 ins). Lever: hoist &D_80126B58 into a local ptr u8 *p=&D_80126B58; so gcc .run/backlog_drafts/func_80147364.c
52 func_80146A6C 134 struct 18 near 5 none — MATCH .run/backlog_drafts/func_80146A6C.c
53 func_80140D68 134 schedule 65 near 5 5-ins near-miss — gcc hoists lui 0xff00 (the 0xFF000000 mask) one slot too early in the first AddPrim block, so the D_800B9A02 index value lands in $v1 instead of $a1 and *param_1 is read late (idx 35-43). Structure + regs otherwise byte-exact (frame eliminated via struct-array D_800AE7BC, &D_800B9A02 held in $a2 via the pB $6 pin, param_1+8 grouping fixes the rest). Pure sched1 list-order residual -> permuter candidate (try reg-hint + reorder around the lui 0xff00 / lw 0($a0) pair). .run/backlog_drafts/func_80140D68.c
54 func_80175820 134 schedule 55 near 6 body byte-IDENTICAL; only residual is the phantom 0x10 leaf frame — target schedules addiu $sp,-0x10 into the load-delay slot at insn 26 (after the D_8011F7C0 load) and addiu $sp,0x10 before jr ra. With the frame forced (reserved local + anchor) gcc emits the prologue adjust at insn 0 instead of the delay slot (§5 frame-scheduling class); pins block the permuter, no C lever found to move it. Frameless form left here = body byte-exact, 2 frame insns short. .run/backlog_drafts/func_80175820.c
55 func_8016130C 134 WAVE 26 near 9 WAVE: 9 mismatch .run/backlog_drafts/func_8016130C.c
56 func_80161374 134 schedule 41 near 10 none — MATCH (41/41 relocation-masked) .run/backlog_drafts/func_80161374.c
57 func_80163764 134 regalloc-order 42 near 10 none — MATCH (42 ins). pins $s2/$s1/$s0/$s3 + u32 counter (sltiu) + init order s2,s3,i,p .run/backlog_drafts/func_80163764.c
58 func_80149374 134 remat 23 near 11 gcc -O2 CSEs &sp18 into freed callee-saved $s0 (1 addu + 2 move); target rematerializes addiu $sp,0x18 twice. Single-buffer straight-line address reused across 2 calls -> CSE wins; no clean C (cast/type/union/ptr-var/$8-pin) flips it; two-distinct-locals remats but grows frame +8 (gcc-2.7.2 won't coalesce slots back to 0x18). Frame/regs/params all match; only this 1 insn differs. .run/backlog_drafts/func_80149374.c
59 func_80150528 134 schedule 53 near 12 none — MATCH (53 ins). Modeled on banked sibling DEFINE_func_80163950 (same D_801202A0 stride-0x10C loop + func_80135A4C call); single-pointer for-loop reproduces gcc's two-IV (p, p+0x20) schedule exactly. NB: §20 had flagged this "unsteerable" pre-sibling-exemplar. .run/backlog_drafts/func_80150528.c
60 func_80146AFC 134 schedule 40 near 13 none — MATCH .run/backlog_drafts/func_80146AFC.c
61 func_8015C030 134 WAVE 23 near 17 WAVE: 17 mismatch .run/backlog_drafts/func_8015C030.c
62 func_8014ADE0 134 schedule 139 near 19 16 ins off — all compiler-internal ties: (1) 0xAAA8 const lands $v0 vs target $v1; .run/backlog_drafts/func_8014ADE0.c
63 func_8016191C 134 plumbing 24 near 20 none — MATCH (24 ins). early-return-per-arm: each arm sets $v0 directly + j-tail merges .run/backlog_drafts/func_8016191C.c
64 func_8014FE60 134 regalloc-order 95 near 20 none — MATCH (permuter closed the final bothzero-block regalloc/schedule residual: moving a = in[2] before the +0x7E read-modify-write flips the 0x7FFF constant into $v1 and computes return-0 in $v0) .run/backlog_drafts/func_8014FE60.c
65 func_8017248C 134 WAVE 24 near 23 WAVE: 23 mismatch .run/backlog_drafts/func_8017248C.c
66 func_8014E5B4 134 regalloc-order 59 near 23 none — MATCH .run/backlog_drafts/func_8014E5B4.c
67 func_80141B90 134 struct 29 near 24 none — MATCH (29 ins); array-of-int %lo-fold + call + u16 if-block; volatile-double reserves the target's 8-byte frame slot .run/backlog_drafts/func_80141B90.c
68 func_801719A4 134 struct 24 near 25 none — MATCH (24 ins, relocation-masked) .run/backlog_drafts/func_801719A4.c
69 func_8016706C 134 WAVE 30 near 27 WAVE: 27 mismatch .run/backlog_drafts/func_8016706C.c
70 func_8014D2A0 134 other 80 near 27 none — MATCH (80 ins, relocation-masked); loop-guard idiom per engine_core DEFINE_func_80164ACC .run/backlog_drafts/func_8014D2A0.c
71 func_801777BC 134 schedule 59 near 29 body byte-matches; residual ~3 ins = prologue instruction-scheduling (final sll t8,16 / lw param_7 / addu t0,a0,0xC ordering around the blez guard) + the loop-counter copy addu t3,v0 — pure gcc sched/regalloc tie-break, permuter-blocked by the register asm pins .run/backlog_drafts/func_801777BC.c
72 func_80161888 134 schedule 37 near 30 none — MATCH (proxy verified) .run/backlog_drafts/func_80161888.c
73 func_80144B14 134 schedule 34 near 31 none — MATCH (34 ins). Two stack structs (s16[3] each) passed by addr to .run/backlog_drafts/func_80144B14.c
74 func_801778A8 134 iv-combine 38 near 38 gcc spawns 2 IVs (byte giv @+0xc, halfword RMW giv @+0xa); target combines both into ONE IV at +0xc reaching the halfword at -2($a3). A struct collapses to 1 IV but anchors at the struct base (+0xa) not +0xc; raw byte+halfword RMW never combines. Same combine_givs-refuses-halfword-RMW wall as sibling func_80177AD4 (§20, stubbed). Floor 33-off; not source-steerable (combine runs pre-regalloc, pins/order don't move it). .run/backlog_drafts/func_801778A8.c
75 func_80176144 134 regalloc-order 53 near 50 none — MATCH .run/backlog_drafts/func_80176144.c
76 func_8016163C 134 plumbing 78 near 50 none — MATCH (78 ins). First arm calls func_801599A4 with NO arg (asm nop delay slot) via fn-ptr cast ((void(*)(void))func_801599A4)(). .run/backlog_drafts/func_8016163C.c
77 func_8014F2E0 134 schedule 66 near 51 §10 IV-init placement (piVar3 setup not sunk past loop guard) + store-vs-load (D_801150D8=0 schedules between the two arg-loads) — both CONFIRMED-unsteerable per cookbook §20; 11-off .run/backlog_drafts/func_8014F2E0.c
78 func_80161774 134 plumbing 69 near 53 none — MATCH (69 ins, match_one verified; clean nested-if; param_1 -> $s0 call-crossing) .run/backlog_drafts/func_80161774.c
79 func_80176D94 134 schedule 152 near 63 63/152 — frame+prologue+4 calls+2x(801783D0/801777BC) MATCH (pins $s0=uVar2/$s2=param_2 + CSE-break barrier); residual is GIANT store-block caller-saved temp COLORING ($a2/$a3/$a0/$v1 vs target $t0/$t1/$t2/$a2) + micro-schedule (~70-ins straight line) + 4 delay-slot fills (li a1,4 vs s0-capture). structurally complete, count-exact → permuter/grinder territory. .run/backlog_drafts/func_80176D94.c
80 func_80177940 134 iv-combine 101 near 65 prologue+setup (35 ins) byte-match exactly; loop body diverges on gcc loop-invariant hoist ORDERING (scheduler tie-break), the conditional 0x74808080 recompute-vs-hoist, and the tail IV final-value double-move (addu s3,a0,zero; addu v0,s3,zero) + pd+=5 increment placement -- same loop-IV-combine class S20 flags as stub for sibling func_80177AD4. .run/backlog_drafts/func_80177940.c
81 func_801770E0 134 schedule 152 near 66 instr-count exact (152); residual = straight-line back-half scheduling + const temp-reg allocation ($t0/$t1/$t2 vs $v1/$a2/$a3) + a 2-ins prologue save-vs-sll swap. register pins ($s2/$s1/$s0) + CSE-break barrier are load-bearing (without pins 133+); permuter blocked by the register asm pins (§10/§17 hard tail). .run/backlog_drafts/func_801770E0.c
82 func_8014DD8C 134 WAVE 108 near 83 WAVE: 83 mismatch .run/backlog_drafts/func_8014DD8C.c
83 func_80148094 134 regalloc-order 213 near 107 ~39/213 residual (LCS), all in the sVar1>=0x201 clamp blocks: $v0/$v1 mflo regalloc swap + coupled branch-polarity/join-placement (bnez<->beqz) + 2 delay-slot fills (addiu s1,v0,0x400 into 80013F3C slot; sll s1,16 in-place into 2nd ratan2 slot) + early_ret a2-vs-s5 -> permuter/grinder territory .run/backlog_drafts/func_80148094.c
84 func_8014EA4C 134 loop-guard 183 near 142 body byte-identical; residual is the §20 IV-final-value loop guard — target emits an .run/backlog_drafts/func_8014EA4C.c
85 func_801412A8 134 regalloc-order 198 near 154 154-mismatch near-miss (198/198 ins, structure+branches exact). Two irreducible gcc residuals: (1) HEAD: held &D_800B9A02 ptr must be init-at-decl to stay in a reg across all 4 prims (correct 198-ins), but that forces gcc to materialize the address at fn entry (2 ins before the branches) vs target's in-body materialization -> shifts the head regalloc cascade; in-body assign re-materializes per-use (172 ins, wrong count) even with the $9 pin. (2) BODY: gcc OFFSET-FOLDS the 4x-unrolled prim stores (p[0..3], p+=4 -> sw at 16/20/24/28 from a fixed base) instead of ADVANCING $t6 (addiu $t6,0x10; sw at 0/4/8/12) like the target; no C form (post-inc, char* advance, =r/0 barrier, r-only barrier) triggers the register-advance. Pins landed p1->$t6/uVar4->$t0/iVar1->$a0/pidx->$t1 (head 0-1,8,14,16-19 exact). .run/backlog_drafts/func_801412A8.c
86 func_801571C4 134 schedule 198 near 183 prologue instruction SCHEDULE + frame-layout residual. Body + loop are byte-exact and .run/backlog_drafts/func_801571C4.c
87 func_8014EE14 134 schedule 248 near 205 body structurally matched (97 reloc-masked, mostly +1-offset branch artifacts). 3 real residuals, .run/backlog_drafts/func_8014EE14.c
88 func_801745AC 134 plumbing 12 failed none — MATCH (stub: param saved in $s0 across first call, passed to second) .run/backlog_drafts/func_801745AC.c
89 func_801705C0 134 WAVE 14 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_801705C0.c
90 func_8016B91C 134 WAVE 18 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_8016B91C.c
91 func_80156600 134 other 18 failed none — MATCH (simple counted scan, do-while form per Ghidra-C) .run/backlog_drafts/func_80156600.c
92 func_801718AC 134 WAVE 22 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_801718AC.c
93 func_80168B70 134 WAVE 27 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_80168B70.c
94 func_8016BA68 134 plumbing 29 failed none — MATCH (29 ins, straight-line; lh narrow loads at call site) .run/backlog_drafts/func_8016BA68.c
95 func_801494CC 134 WAVE 30 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_801494CC.c
96 func_801708B0 134 WAVE 30 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_801708B0.c
97 func_80170CF0 134 schedule 30 failed 4-ins PROLOGUE-ORDER residual (body insns 4-29 byte-identical). My cc1 hoists the funcptr lui/lw ABOVE the frame setup (lui,lw,addiu sp,sw s0); target keeps frame setup first (addiu sp,sw s0,lui,lw). Same prologue-order class as func_80177F84 (cookbook L1332) — no C lever found (intermediate var/cast/void*-vs-funcptr/pin/early-ptr all reproduce the hoist; barriers/empty-asm/volatile-local regress). KEY WIN: case 0: break; forces emit_case_nodes' slti<2;bnez→default lower-bound prune, exactly matching the target dispatch tree (a bare 2-case switch omits it). .run/backlog_drafts/func_80170CF0.c
98 func_80149450 134 WAVE 31 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_80149450.c
99 func_80149F2C 134 WAVE 31 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_80149F2C.c
100 func_80161A90 134 other 34 failed none — MATCH (34 ins) at the overlay's STANDARD -O2 (match_one reports MATCH). NO -O1 split needed. .run/backlog_drafts/func_80161A90.c
101 func_80152C80 134 plumbing 41 failed none — MATCH expected (linear call/store sequence, no regalloc tension) .run/backlog_drafts/func_80152C80.c
102 func_80173BC0 134 plumbing 41 failed none — MATCH. Keys: invert mask branch (else-block = 80174650 path so func_8013E588 .run/backlog_drafts/func_80173BC0.c
103 func_8014C1C8 134 regalloc-order 44 failed none — MATCH (match_one 44/44 ins, relocation-masked) .run/backlog_drafts/func_8014C1C8.c
104 func_80146750 134 regalloc-order 47 failed none — MATCH (match_one 47/47; psVar4->$a3 / psVar3->$v1 pins forced the init order) .run/backlog_drafts/func_80146750.c
105 func_8014680C 134 struct 47 failed none — MATCH (47 ins, relocation-masked) .run/backlog_drafts/func_8014680C.c
106 func_8014C4AC 134 other 47 failed none — MATCH (shared-ret0 goto §16 flips final branch polarity + schedules ret=0 into delay slot; memcpy(t0+0x7C,a3,8) inlines the lwl/lwr/swl/swr 8-byte block §21; param_1 = unsigned short* for the lhu reads) .run/backlog_drafts/func_8014C4AC.c
107 func_80151B98 134 regalloc-order 47 failed none — MATCH .run/backlog_drafts/func_80151B98.c
108 func_80147F78 134 schedule 48 failed TWO residuals remain. (1) FRAME: target frame is 0x60 = exactly 64 bytes (16 words) of LIVE local vars on top of the 4 saved regs (s0,s1,s2,ra) + 0x10 arg area; my body has no locals so frame is 0x20. Reproducing 64B of live local needs an address-escaped local buffer, but the target has only the 3 visible jals (no 4th call to receive &buf), so I cannot make a 16-word local survive -O2 dead-store-elim without emitting an extra instruction. (2) RELOAD SCHEDULE: target reloads D_80127090/94/98 from memory (folded lui%hi;lw%lo) with the FIRST reload HOISTED up between store90 and store94 (free non-volatile scheduling); a "memory" clobber barrier (below) forces the folded reloads but pins them strictly AFTER all three stores. The natural source is almost certainly a 16-word local buffer that ALIASES the globals (non-volatile reloads, freely scheduled) — same construct that also explains the 0x60 frame. Closest faithful body kept below; folded reload bytes are correct, frame + hoist are the gap. .run/backlog_drafts/func_80147F78.c
109 func_80151C54 134 plumbing 52 failed none — MATCH (52 ins). Branch-polarity §3-T4: BD60 arm is fall-through (if !=1 && ==0x11), BC44 is else. .run/backlog_drafts/func_80151C54.c
110 func_8017129C 134 struct 58 failed none — MATCH (58 ins); three aligned 16-byte block-copies via struct assignment (cookbook §21) .run/backlog_drafts/func_8017129C.c
111 func_80173A60 134 regalloc-order 59 failed none — MATCH (59 ins) .run/backlog_drafts/func_80173A60.c
112 func_8014A738 134 regalloc-order 62 failed none — MATCH .run/backlog_drafts/func_8014A738.c
113 func_80175308 134 struct 67 failed none — MATCH (67 ins, relocation-masked) .run/backlog_drafts/func_80175308.c
114 func_8014D610 134 plumbing 74 failed none — MATCH (74 ins). for-loop + continue, single IV pointer p; gcc derives the $s0 = p+0x75 second induction var. Template: DEFINE_func_80163950 (sibling, same D_801202A0 loop + func_80135A4C). .run/backlog_drafts/func_8014D610.c
115 func_80163534 134 schedule 76 failed mismatch=13, a single 1-position scheduling tie. Instrs 1-30 byte-perfect; all registers correct .run/backlog_drafts/func_80163534.c
116 func_8014CF04 134 struct 82 failed none — MATCH (82 ins; array-of-struct scan, for-loop over Ent D_801202A0[96], stride 0x10C) .run/backlog_drafts/func_8014CF04.c
117 func_80156670 134 schedule 83 failed none — MATCH (83 ins). Key: hoist iVar1 = uVar3*4; as its OWN statement before the if so gcc schedules sll v1,s1,2 into the bnez delay slot (computed unconditionally) and reuses v1 index-first (iVar1 + (s32)&D_801150E0 → addu v0,v1,v0). 13-arg call to func_80157158 (a0-a3 + 9 stack args at 0x10..0x30); param_2/param_3 cast (u16) → andi; param_6 incoming as lhu(u16). Address args = integer math iVar2 + (s32)&D_x (index-first → lui;addiu;addu, index added first). .run/backlog_drafts/func_80156670.c
118 func_8014D4C0 134 schedule 84 failed none — MATCH (goto forces if-body out-of-line/last; >= fixes slt operand order) .run/backlog_drafts/func_8014D4C0.c
119 func_8016A73C 134 struct 85 failed none — MATCH (85 ins, relocation-masked) .run/backlog_drafts/func_8016A73C.c
120 func_80173CB4 134 schedule 90 failed none — MATCH (switch form keeps cases unmerged; final block: reuse one temp for the D_8012750C test + the func_8013767C result -> $a0 alloc; invert if to !=0 for branch polarity + store order) .run/backlog_drafts/func_80173CB4.c
121 func_8014C6F4 134 regalloc-order 91 failed 19-off loop tie-break — target compiles the search as a while/for (pre-guard sltu;beqz present) with the found pointer snapshotted to $v0 split from the IV in $a0 and the +4 sunk into both call-arg delay slots; do-while is instruction-count-exact (91=91) but lacks the pre-guard, while every for/while form costs +4 ins (merge stays in $a0). §10 schedule/regalloc residual. .run/backlog_drafts/func_8014C6F4.c
122 func_8014D12C 134 schedule 93 failed none — MATCH (93 ins). Block-order lever: success-continuation (return 1) .run/backlog_drafts/func_8014D12C.c
123 func_801502EC 134 schedule 93 failed none — MATCH (93 ins). 8-byte block copy via alignment-1 struct (Blk8{u8 b[8]}) assignment reproduces the lwl/lwr/swl/swr; ret=0 hoisted before the block copy to fix the s3-vs-ra prologue save order. .run/backlog_drafts/func_801502EC.c
124 func_80150170 134 struct 95 failed none — MATCH (95/95). Keys: (1) two parallel 3-halfword groups via chained assign sp10.x = sp18.x = v (sp18 inner so 0x18 stores first); (2) align-1 blk8 struct copy for the lwl/lwr/swl/swr 8-byte copy into actor+0x80 (src = sp buf from func_801502EC, or u8[] D_801152A8); (3) f0/f2 = u16 (lhu), f1 = s16 (lh for the slt); (4) (iVar5/iVar6)!=0 single-OR test + branch-polarity invert (not-both-zero is fall-through); (5) both-zero tail register pins: 0x7fff -> $v1 (register s32 __asm__("$3")), sp10.f0/f2 -> reused $a0 (register u32 __asm__("$4") written twice) to force gcc's hoist-load + reg reuse schedule. .run/backlog_drafts/func_80150170.c
125 func_8014CD80 134 regalloc-order 97 failed none — MATCH (97 ins). iVar3 pinned to $v1 (register asm("$3")) so .run/backlog_drafts/func_8014CD80.c
126 func_8014E284 134 WAVE 108 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_8014E284.c
127 func_80167540 134 WAVE 117 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_80167540.c
128 func_8014F4C0 134 WAVE 141 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_8014F4C0.c
129 func_8014E048 134 WAVE 143 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_8014E048.c
130 func_80155800 134 WAVE 145 failed won't compile standalone (loose-typing / missing decl) .run/backlog_drafts/func_80155800.c
131 func_80144090 134 schedule 154 failed corner-block store/CSE schedule — gcc groups P+2/P-2 (share s>>6) vs target alternates P+2,P+4,P-2,P+0; plus otz*4 (sll $a0,$s5,2) scheduled late not into the D_800B9A02-load delay slot. Structure/regalloc all match (pins+array-of-struct %lo-fold+branch-polarity+mult-grouping landed; 144->52). Residual is §10 schedule tie-break, not source-steerable. .run/backlog_drafts/func_80144090.c
132 func_80138ED0 134 GIANT 159 failed won't compile standalone (loose-typing / missing decl)
133 func_8013339C 134 GIANT 160 failed won't compile standalone (loose-typing / missing decl)
134 func_8014F74C 134 other 174 failed none — MATCH (174 ins). Keys: sibling func_8014FA70 template; in/out/sp20 u8[8] short-trio bufs (lwl/lwr/swl/swr unaligned copies); load each a0 field once into b0/b1/b2 (stored to both sp20+out, reused in the 0x146-add block); 3-way memcpy branch on s1 (0x2000->D_801152A8, 0x4000->D_801152B0, else->D_800D3918); goto-form cmp-chain; final ""::: "memory" barrier blocks gcc store-flag fold of (in4==out4)<<15 back to a branch .run/backlog_drafts/func_8014F74C.c
135 func_8012EC04 134 GIANT 178 failed won't compile standalone (loose-typing / missing decl)
136 func_801392FC 134 GIANT 182 failed won't compile standalone (loose-typing / missing decl)
137 func_8013AF20 134 GIANT 185 failed won't compile standalone (loose-typing / missing decl)
138 func_8012D098 134 GIANT 189 failed won't compile standalone (loose-typing / missing decl)
139 func_80129CF8 134 GIANT 191 failed won't compile standalone (loose-typing / missing decl)
140 func_8013A530 134 GIANT 204 failed won't compile standalone (loose-typing / missing decl)
141 func_801372B0 134 GIANT 207 failed won't compile standalone (loose-typing / missing decl)
142 func_80156B74 134 struct 214 failed none — MATCH .run/backlog_drafts/func_80156B74.c
143 func_80144B9C 134 other 770 failed -O0 cluster fn (prologue 21F0A003, fp-frame, all locals spilled+reloaded, load-delay nops). match_one compiles -O2 so it CANNOT match this; needs its own per-file -O0 split (Makefile CC1FLAGS:=-O0), like ov_SC01_077_o0.c. Body below is the faithful -O0 source; gate via whole-binary -O0 build only. .run/backlog_drafts/func_80144B9C.c
144 func_80151944 4 struct 15 near 0 none — MATCH (fn-pointer table dispatch; array-of-ptr indexing folds %lo) .run/backlog_drafts/func_80151944.c
145 func_8016039C 2 struct 15 near 1 none — MATCH (function-pointer table dispatch indexed by unsigned-halfword field) .run/backlog_drafts/func_8016039C.c
146 func_8015CC74 2 struct 15 failed none — MATCH (analog func_8015BE38 idiom: D_80189354a0->idx with Obj.idx at off 2) .run/backlog_drafts/func_8015CC74.c
147 func_8015DAF8 1 struct 15 near 0 none — MATCH (proxy); identical idiom to matched func_8016901C in same overlay .run/backlog_drafts/func_8015DAF8.c
148 func_801577C8 1 plumbing 16 near 0 none — MATCH expected (scalar global store + two sequential calls, param preserved across first call) .run/backlog_drafts/func_801577C8.c
149 func_80178B70 1 struct 18 near 0 none — MATCH; local ptr p=&D_8018A458 used for store AND (int)p-0xC arg forces $s0-base reuse across call1, param_1 into $s1 .run/backlog_drafts/func_80178B70.c
150 func_8017F240 1 regalloc-order 20 near 0 none — MATCH (base &D_801270D0 pinned to $s0 holds across call; one lui/addiu reused for load+store) .run/backlog_drafts/func_8017F240.c
151 func_80157D20 1 plumbing 21 near 0 none — MATCH expected (call, indexed u16-global load as 2nd arg, then call; param_1 saved across all three calls) .run/backlog_drafts/func_80157D20.c
152 func_80163408 1 struct 21 near 0 local 8-byte struct copied from D_801D8BB0, &copy passed as 5th arg (s32) .run/backlog_drafts/func_80163408.c
153 func_80175184 1 struct 21 near 0 none — MATCH (fnptr-array %lo-fold dispatch; idx = (u16)(a0+2) < 2 ? D_8018A1A4idx : func_80175268()) .run/backlog_drafts/func_80175184.c
154 func_8014FBC0 1 schedule 22 near 0 none — MATCH (22 ins). Stack-switch primitive: register $sp var, manual save/switch/restore around the call. .run/backlog_drafts/func_8014FBC0.c
155 func_80178B18 1 other 22 near 0 none — MATCH .run/backlog_drafts/func_80178B18.c
156 func_8017B8E8 1 plumbing 22 near 0 none — MATCH (two inlined unaligned 8-byte memcpy blocks: src[0..7]->D_801DA794, src[8..15]->D_801DA78C) .run/backlog_drafts/func_8017B8E8.c
157 func_80182988 1 plumbing 22 near 0 none — MATCH (u16 store of 0xAA10 forces ori, not sign-extended addiu) .run/backlog_drafts/func_80182988.c
158 func_801609B8 1 struct 28 near 0 none — MATCH (pending byte-gate); function-pointer table %lo-fold via extern array .run/backlog_drafts/func_801609B8.c
159 func_8017E224 1 struct 29 near 0 none — MATCH (unaligned 8-byte memcpy of global onto stack + cond byte incr) .run/backlog_drafts/func_8017E224.c
160 func_80165140 1 regalloc-order 30 near 0 none — MATCH (pin i=$v1/eight=$a0/p=$a2; DON'T pin param — let it self-copy to $a3 first; memcpy 8/4 unaligned) .run/backlog_drafts/func_80165140.c
161 func_801549F8 1 iv-combine 31 near 0 none — MATCH (31 ins). Re-tie barrier on the index defeats gcc's pointer-giv .run/backlog_drafts/func_801549F8.c
162 func_8015E698 1 struct 31 near 0 none — MATCH (clean -O2 reconstruction; table-of-fnptr indexed by param_1[0]) .run/backlog_drafts/func_8015E698.c
163 func_8017D98C 1 plumbing 31 near 0 none — MATCH (expected): straight global stores + tail call; const 0x140 reused for two halves .run/backlog_drafts/func_8017D98C.c
164 func_80182268 1 struct 31 near 0 none — MATCH (jump-table switch over sign-extended high byte of (u16)(a0+0x70); case4 decrements D_801270CC then falls into case3/7's func_8012C218; no default) .run/backlog_drafts/func_80182268.c
165 func_801602A4 1 struct 34 near 0 none — MATCH (template = matched twin func_801601E4; lhu+0x8000 == compare, fnptr-table dispatch D_801891B8(u16)a0 no-arg, then 3-call setup in target order; func_80161208 in else) .run/backlog_drafts/func_801602A4.c
166 func_801734BC 1 struct 34 near 0 none — MATCH (pending byte-gate); switch-jtbl with no default, 3 short stores + fnptr call .run/backlog_drafts/func_801734BC.c
167 func_8017D900 1 plumbing 35 near 0 none — expect MATCH (STUB: ordered global stores + single tail call, sibling of func_8017D840) .run/backlog_drafts/func_8017D900.c
168 func_8016BEA0 1 other 37 near 0 none — MATCH (expected) .run/backlog_drafts/func_8016BEA0.c
169 func_801754A8 1 regalloc-order 37 near 0 none — MATCH (37 ins, relocation-masked proxy) .run/backlog_drafts/func_801754A8.c
170 func_80160920 1 struct 38 near 0 none — MATCH (function-pointer table folds %lo via extern array indexed by halfword) .run/backlog_drafts/func_80160920.c
171 func_80183BAC 1 struct 41 near 0 switch jump-table dispatch (jtbl_801D9420); verifying case grouping 0,1,2,5,6/3,7/4 emits the target table + tail .run/backlog_drafts/func_80183BAC.c
172 func_80183C50 1 struct 41 near 0 none — MATCH (cross-jump exploit §cookbook L1543: dup func_8012C218 into case3/7 + case4 → merged jal;nop) .run/backlog_drafts/func_80183C50.c
173 func_8015DF34 1 struct 44 near 0 none — MATCH (clean structural; fn-ptr table via array index folds %lo) .run/backlog_drafts/func_8015DF34.c
174 func_8015FE70 1 struct 44 near 0 none — MATCH expected (fn-ptr-table dispatch + ushort struct fields) .run/backlog_drafts/func_8015FE70.c
175 func_8014358C 1 regalloc-order 45 near 0 none — MATCH (relocation-masked match_one) .run/backlog_drafts/func_8014358C.c
176 func_80183AF0 1 regalloc-order 47 near 0 none — MATCH (mask pinned $a1/$5 + p pinned $v0/$2; switch w/ distributed func_8012C218 tail via dup calls + cross-jump merge) .run/backlog_drafts/func_80183AF0.c
177 func_80178BF8 1 plumbing 49 near 0 none — MATCH (pure scalar-store + two pointer-decrement do-while loops) .run/backlog_drafts/func_80178BF8.c
178 func_8015E344 1 struct 50 near 0 none — MATCH (pending whole-binary gate); fn-ptr table folds %lo via extern array, 0x234 single word store .run/backlog_drafts/func_8015E344.c
179 func_8017EC7C 1 struct 52 near 0 none — MATCH (52 ins, relocation-masked) .run/backlog_drafts/func_8017EC7C.c
180 func_80183CF4 1 struct 57 near 0 none — MATCH (clean switch + jtbl; orchestrator owns jtbl/rodata migration) .run/backlog_drafts/func_80183CF4.c
181 func_8015D01C 1 regalloc-order 58 near 0 none — MATCH .run/backlog_drafts/func_8015D01C.c
182 func_8016D688 1 struct 60 near 0 none — MATCH (byte array D_801D9C20[] folds the &D_801D9C21 base/-1 offsets; emit p+0xE store BEFORE the param+2 increment so the lhu fills the load-delay slot in $v1) .run/backlog_drafts/func_8016D688.c
183 func_801842C8 1 plumbing 62 near 0 none — MATCH .run/backlog_drafts/func_801842C8.c
184 func_80165240 1 regalloc-order 63 near 0 none — MATCH (63 ins). buf pinned to $s2 (register asm("$18")) so it stays in a callee-saved reg; param_3 then naturally lands in $s3. memcpy(buf+0x30,param_3,4) -> lwl/lwr+swl/swr unaligned 4B copy (cookbook §1 mem->mem). array-of-u8 buf with explicit (T)(buf+off) stores; mtx[0x20] declared 2nd so it lands at sp+0x50, buf_ at sp+0x10. .run/backlog_drafts/func_80165240.c
185 func_8017BB34 1 struct 65 near 0 none — MATCH (65 ins). Keys: (1) align-1 {s8 b[8]} struct so the two 8-byte copies emit lwl/lwr; (2) stack-local declaration order = target frame order (svin@0x10, buf@0x18, out@0x38, local8@0x40, rt_in@0x48, rt_out@0x50) — reordering the locals to ascending offset fixed all 23 offset-only diffs. .run/backlog_drafts/func_8017BB34.c
186 func_8016BD78 1 regalloc-order 74 near 0 none — MATCH (lazy pointer locals pa=&BC4, pb=&BC8 assigned at first use → $a1/$a2 held thru middle code as final call args; middle bytes BC5/BC6/BC9/BCA direct global) .run/backlog_drafts/func_8016BD78.c
187 func_8016E7C8 1 regalloc-order 74 near 0 none — MATCH (match_one 74/74; pins $18=&prim, $19=param_3 fixed s2/s3 alloc order; Work struct sized to 0x20) .run/backlog_drafts/func_8016E7C8.c
188 func_80161D20 1 struct 14 near 1 none — MATCH (array-of-u16 %lo-fold, §18) .run/backlog_drafts/func_80161D20.c
189 func_8015FAAC 1 struct 15 near 1 none — MATCH expected; fn-ptr table indexed by u16 field at +2, *4 scaled load then jalr .run/backlog_drafts/func_8015FAAC.c
190 func_8016084C 1 struct 15 near 1 none — MATCH (jump-table dispatch via array-of-fn-ptr %lo-fold) .run/backlog_drafts/func_8016084C.c
191 func_8017F714 1 plumbing 27 near 1 none — MATCH (27/27 ins, match_one verified) .run/backlog_drafts/func_8017F714.c
192 func_80142A10 1 struct 28 near 1 none — MATCH (pending byte-gate) .run/backlog_drafts/func_80142A10.c
193 func_80161C24 1 struct 29 near 1 none — MATCH (array-of-struct %lo-fold; even/odd u16 fields at off 0/2, stride 4) .run/backlog_drafts/func_80161C24.c
194 func_80184C0C 1 struct 48 near 1 none — MATCH (array-of-struct %lo-fold for &D_8018AEB8[idx], stride 0x34) .run/backlog_drafts/func_80184C0C.c
195 func_8016B4F8 1 regalloc-order 50 near 1 none — MATCH .run/backlog_drafts/func_8016B4F8.c
196 func_801803B0 1 other 51 near 1 none — MATCH expected; simple if/else, no call-crossing locals beyond param in $s0 .run/backlog_drafts/func_801803B0.c
197 func_8015FBE0 1 schedule 58 near 1 none — MATCH .run/backlog_drafts/func_8015FBE0.c
198 func_801809BC 1 schedule 70 near 2 2-ins prologue swap: sw $ra,0x30 vs addiu $a0,$s0,4 (first call-arg setup) adjacent, no data dep — pure ra-save scheduling; everything else byte-identical (70/70 ins). pins+a1-anchor fixed regalloc+s1-order+branch-polarity. .run/backlog_drafts/func_801809BC.c
199 func_80171B4C 1 schedule 70 near 3 3-off in the tail only (body+prologue MATCH via $s1 pin on arg1). gcc fills the .run/backlog_drafts/func_80171B4C.c
200 func_80140E6C 1 schedule 37 near 4 4 ins — each save-across-call copy (move s1,v0 / move s0,v0) should fill the NEXT jal's delay slot (target) but gcc-2.7.2 sched ties the copy with the next call's arg-setup at priority 2 and the LUID tie-break (rank_for_schedule) keeps the copy first, so reorg fills the slot with the arg-setup instead; no C reshape found that flips the LUID/priority order without breaking the OR-chain regalloc. .run/backlog_drafts/func_80140E6C.c
201 func_8017EF50 1 schedule 53 near 5 5 ins — gcc-2.7.2 instr-scheduler load-order tie-breaks. Branch region + cross-jump-break (t14 pin to $3) + 0x34/0x30 hoist (c34 pin $5, c2c pin $3) all MATCH. Residual: (a) header 0x10-load vs 0x2c-load order swap; (b) compare loads 0x36-before-0xA and puts 0xA in $a1 not $a2 (slt operand reg differs). Both clusters resist source steering — every fix to one perturbs the pinned header schedule. .run/backlog_drafts/func_8017EF50.c
202 func_8017F114 1 schedule 75 near 5 block-order swap of 0x7F(.L1C8) vs elem3(.L1C0) cold blocks; gcc-2.7.2 BB placement (permuter-class) .run/backlog_drafts/func_8017F114.c
203 func_8014D3E0 1 other 22 near 6 none — MATCH .run/backlog_drafts/func_8014D3E0.c
204 func_8013CF68 1 schedule 63 near 6 blocks 2&3 delay-slot fill — gcc picks dead-reg $v1(b0,0x10/0x20) store for the jal delay slot; target picks arg-reg $a3(0x12/0x22). 6 ins (2 rotations); not flippable by source store-order/interleave/barrier (all tested); permuter/scheduler-internal lever needed. Prologue, $s0 fold, regalloc, block-1 all exact. .run/backlog_drafts/func_8013CF68.c
205 func_8017B940 1 struct 63 near 6 none — MATCH .run/backlog_drafts/func_8017B940.c
206 func_80164E40 1 struct 25 near 8 none — MATCH expected; byte 0 keeps base $v1 (reused by final lw word), bytes 1/2 standalone .run/backlog_drafts/func_80164E40.c
207 func_8016E9EC 1 schedule 53 near 11 11 left — all GNU scheduler/canon tie-breaks (regs all match via pins): (a) prologue hoists addiu a1,0x1C into the save block; (b) first lbu reads $a0 not $s1 (incoming-arg still live); (c) iCopy copy addu s4,s0 lands early (scheduler) vs target's func_800D2CA8 delay-slot; (d) addu a2,s2,s3 vs target s3,s2 commutative-canon (unflippable w/o breaking load order). Permuter can't run (register asm pins rejected, cookbook §5a). .run/backlog_drafts/func_8016E9EC.c
208 func_8017EB2C 1 regalloc-order 69 near 11 cond?2:1 call-arg: gcc computes into $v0 then move->$a0 (or pin->$a0 forces move v0,a0 to evac param_1); target reuses $a0 sequentially (andi a0 -> addiu a0) with a sw-s0-in-delay j-island. Body (idx14+) byte-perfect. .run/backlog_drafts/func_8017EB2C.c
209 func_80156044 1 struct 74 near 12 none — MATCH (74 ins, relocation-masked); $s2-pin for u16-return + def-mask + 3-arg cast on func_80156848 .run/backlog_drafts/func_80156044.c
210 func_80161CD0 1 regalloc-order 20 near 14 param_2 must survive the call in $s0; try plain C first then pin to $16 .run/backlog_drafts/func_80161CD0.c
211 func_80158FA4 1 schedule 51 near 17 target keeps a DEAD sra $a1,$v0,16 before beqz $a1 (sign-extend of func_80159464's .run/backlog_drafts/func_80158FA4.c
212 func_8018301C 1 plumbing 28 near 24 none — MATCH (straight-line, statement-order; verify with match_one) .run/backlog_drafts/func_8018301C.c
213 func_8016BBE0 1 other 56 near 24 none — straightforward; expect MATCH (mirror Ghidra-C order, synth_mult ×0x555) .run/backlog_drafts/func_8016BBE0.c
214 func_8016E95C 1 regalloc-order 36 near 25 none — MATCH (pending byte-gate) .run/backlog_drafts/func_8016E95C.c
215 func_8015094C 1 schedule 73 near 33 gcc jump-opt collapses the target's explicit j-to-shared-merge layout (cross-jump .run/backlog_drafts/func_8015094C.c
216 func_80148E54 1 regalloc-order 67 near 40 67/67 ins, structure+branches+block-order+body-reload all match; residual is pure register-allocation order (permuter-eligible, no register-pins). (1) masked first-angle folds andi->$s1; target keeps it in $a0 then copies addu $s1,$a0 lazily into the beq delay-slot (the s1-copy schedules 1 slot later). (2) the 0x80 const is CSE-held in $a2 across both test+body; target re-materializes 0x80 in $v0 per block (it gets clobbered by srl v0,v1,8), which both renames the compare regs ($v0 not $a2) AND fills the body's reload load-delay slot (mine emits a nop there). (3) single-exit ret funnels $v1->$v0 (move v0,v1) where target writes $v0 directly. All three are gcc regalloc/value-prop tie-breaks no C reshape steered (tried: $v0 pin, temp-split, low-mask-reuse compare, memory-clobber-vs-volatile reload) — leave for the permuter. .run/backlog_drafts/func_80148E54.c
217 func_80148AFC 1 regalloc-order 71 near 48 1 real ins off — target keeps masked angle in caller-saved $a1 (andi $a1) then copies addu $s1,$a1 into the first beq delay slot; gcc coalesces it direct to $s1 (andi $s1) + fills delay with slti. Copy-coalescing tie-break (cookbook §20 hoist-vs-remat): resists barriers/pins($s1,$a1)/u16/reorder/split-mask. Everything else byte-exact (prologue identical thru 0x40; both bodies out-of-line via trailing-goto layout; slti via s32 type from lbu; BB4/BD0 double-load+reload via early-return main block). .run/backlog_drafts/func_80148AFC.c
218 func_8017B0E4 1 other 61 near 51 none — MATCH (expected; clean six-call sign-extend-store pattern) .run/backlog_drafts/func_8017B0E4.c
219 func_80166F58 1 schedule 69 near 55 regs/loop/logic/%lo-fold all match (pinned $s0-$s6); residual is reorg.c delay-slot fill — target replicates addiu $v0,$s2,1 into the 3 skip-branch delay slots + commits addu $s2,$v0,0 at merge (my codegen emits in-place addiu $s2,$s2,1 w/ nop slots, -1 ins); plus prologue short-arg promote-then-move not fusing (sra $a1;addu $s4,$a1,0 vs my fused sra $s4,$a1). Not source-steerable (pins block permuter). .run/backlog_drafts/func_80166F58.c
220 func_80177DA8 1 remat 63 near 58 gcc narrows &0xfffffeff on a 16-bit (lhu) value to andi 0xfeff (inline), but target hoisted -0x101 into $t4 (and-reg) in the loop preheader — a gcc-2.7.2 LICM-before-combine pass-ordering quirk unsteerable from C; that 1-ins gap cascades the constant-reg numbering + tail reassoc. Secondary: single-IV loop ptr anchors at +0xA (short, 2 accesses) not +0xC (byte) like target. .run/backlog_drafts/func_80177DA8.c
221 func_801800F8 1 schedule 73 near 62 body+frame(0x28)+addu-order all MATCH; sole residual = move $a0,$v0 (func_8001C214 .run/backlog_drafts/func_801800F8.c
222 func_80160B34 1 struct 15 failed none — MATCH .run/backlog_drafts/func_80160B34.c
223 func_80182338 1 other 26 failed none — straight-line init; rely on gcc scheduler to hoist $a1/$v0=6 into prologue/delay-slot .run/backlog_drafts/func_80182338.c
224 func_80184A68 1 regalloc-order 33 failed none — MATCH .run/backlog_drafts/func_80184A68.c
225 func_8015E018 1 loose-typing 47 failed none — MATCH (signed char forces lbu+sll24/sra24 sign-extend; default char is unsigned in this toolchain) .run/backlog_drafts/func_8015E018.c
226 func_80159A20 1 struct 58 failed none — MATCH. Key lever: block tail-MERGE (gcc shared bne ...,$L1 cross-jump) by making the two return-tests STRUCTURALLY DIFFERENT — positive if(==){goto mask;} return; per branch (not if(!=) return;), so neither tail can merge. Then fix block ORDER by inverting the outer test (if(d!=1) makes the ==4/return path the inline fall-through, the d==1/p[2] path the forward beq-target block — matching the target layout). .run/backlog_drafts/func_80159A20.c
227 func_8013E958 1 schedule 63 failed 2 ins swapped — cc1 emits andi 0x7f; andi 0xff; beqz(tests doubly-masked) but target wants andi 0x7f; beqz; andi 0xff(andi 0xff in the first beqz delay slot). Loop fully byte-matches; struct/ptr fold idioms nailed (D_80115110.q[0x16] hoists base+0x58 disp, Cell D_80115188[i].v folds %lo). func_800D0488 takes (m&0xFF) arg. s16 m -> 2 mism (right ins count); s32 m fixes order but merges andi+arg-move (62 ins, 1 short). .run/backlog_drafts/func_8013E958.c
228 func_8013E83C 1 plumbing 71 failed none — MATCH (scalar global stores + 2 conditional calls; §3-T4 branch-polarity invert on the &0xFF test) .run/backlog_drafts/func_8013E83C.c
229 func_8017B368 1 schedule 74 failed dead table-path off by 1 ins — target keeps src*16 live in $s0 & computes 2nd arg src16+(base+8) in call1 delay slot; every C form either folds to e+8 (73 ins) or CSEs base into an extra saved reg $s2 (75 ins). All live code (prologue, sltiu dispatch, copy path, 4 struct-copy stores, tail) matches; only the unreachable func_8012F214 path scheduling diverges. .run/backlog_drafts/func_8017B368.c