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Drew T
ce79a3e432
Provenance stated per row (CONFIRMED = banked through the whole-binary gate; CLAIMED = the agent's own measurement on a function that did not bank), because one of these came from a function that was adversarially upheld and then FAILED the real gate. A. reg_n_sets is a one-line scheduling dial (CONFIRMED, func_80180ABC 257 ins). sched1 schedules backward; a pseudo set exactly once gets the birthing_insn_p launch boost (priority = 7f000001 in cc1 -dS), which drags its load LATE. Splitting the RMW as 't = t + 1; *p = t;' makes reg_n_sets 2, suppresses the boost, and floats the load to the block head -- the block-local dual of §350's shared temp, WITHOUT the global-allocno penalty that costs the in-place addiu. Companions: 180 legal statement permutations all scored identically while one cc1 -dS dump named the cause (diagnose, don't permute); a pin-free fix for paired-register inversion; and gcc frame slot order is NOT declaration order (BLKmode aggregates go in order at expand_decl, an addressable scalar is forced to the stack later -- declare 's32 x[2]' to place a slot between two aggregates). B. A single-set local's VALUE is visible at a switch join and erases a zero-extension (CONFIRMED, func_801806F8 241 ins). combine.c:10035 lets get_last_value bypass the label_tick guard when reg_n_sets == 1, so all seven narrowing spellings emit nothing. Diagnostic: a visible extension in the target means the variable has MORE THAN ONE SET in the original source. Verified against a matched sibling: andi is the multi-set zero-extend and sll;srl is NEVER reachable from a single expression. C. CORRECTION to §439 -- the sll 16; srl 16 pair lands AFTER the jal, not before it (sched1 sinks the ashift past the call), and it works even for a KNOWN CONSTANT, because the call-split defeats folding structurally rather than by hiding the value. D. An offline jtbl-rodata placement audit (CLAIMED, func_800CB00C -- did not bank, which is the point: both matchers compare .text only, so a jtbl function's MATCH says nothing about its table).
29 lines
4.4 KiB
Markdown
29 lines
4.4 KiB
Markdown
# Backlog — automation near-misses for hand-finishing
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> 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.
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**Open near-misses:** 20 · by status {'near': 11, 'failed': 9} · by class {None: 20}
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| # | addr | reach | class | nins | status | closeness | where it stuck | best draft |
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|--:|------|------:|-------|-----:|--------|----------:|----------------|------------|
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| 1 | func_80181804 | None | | None | near | 0 | match_one MATCH but the whole-binary gate rejected — CAUSE NOT DETERMINED. FIRST re-derive the destination TU from the asm subdir: asm/<ov>/nonmatchings/<TU_stem>/<fn>.s => src/<ov>/<TU_stem>.c (the third path component IS the TU). Only then look for a decl conflict or a codegen residual. | `.run/backlog_drafts/func_80181804.c` |
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| 2 | func_80181CB8 | None | | None | near | 0 | match_one MATCH but the whole-binary gate rejected — CAUSE NOT DETERMINED. FIRST re-derive the destination TU from the asm subdir: asm/<ov>/nonmatchings/<TU_stem>/<fn>.s => src/<ov>/<TU_stem>.c (the third path component IS the TU). Only then look for a decl conflict or a codegen residual. | `.run/backlog_drafts/func_80181CB8.c` |
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| 3 | func_8002B0B4 | None | | None | near | 0 | match_one MATCH but the whole-binary gate rejected — CAUSE NOT DETERMINED. FIRST re-derive the destination TU from the asm subdir: asm/<ov>/nonmatchings/<TU_stem>/<fn>.s => src/<ov>/<TU_stem>.c (the third path component IS the TU). Only then look for a decl conflict or a codegen residual. | `.run/backlog_drafts/func_8002B0B4.c` |
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| 4 | func_8017D918 | None | | None | near | 4 | residual: 4 mismatch | `.run/backlog_drafts/func_8017D918.c` |
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| 5 | func_80182CBC | None | | 28 | near | 7 | resolver DIFF (real-TU rtu_match, 20260825-233820): mine=28 target=28 | `.run/backlog_drafts/func_80182CBC.c` |
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| 6 | func_80180EC0 | None | | None | near | 9 | residual: 9 mismatch | `.run/backlog_drafts/func_80180EC0.c` |
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| 7 | func_80181294 | None | | None | near | 19 | residual: 19 mismatch | `.run/backlog_drafts/func_80181294.c` |
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| 8 | func_80181344 | None | | None | near | 48 | residual: 48 mismatch | `.run/backlog_drafts/func_80181344.c` |
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| 9 | func_80180B3C | None | | 297 | near | 125 | resolver DIFF (real-TU rtu_match, 20260825-233820): mine=296 target=297 | `.run/wave_eo/shard478/func_80180B3C.c` |
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| 10 | func_800CB00C | None | | 123 | near | 168 | resolver DIFF (real-TU rtu_match, 20260826-053145): mine=174 target=123 | `.run/wave_g0c/shard30/func_800CB00C.c` |
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| 11 | func_80180B3C | None | | 21 | near | 287 | resolver DIFF (real-TU rtu_match, 20260826-022235): mine=287 target=21 | `.run/wave_eq/shard63/func_80180B3C.c` |
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| 12 | func_800D06E8 | None | | None | failed | | resolver CC1 (real-TU rtu_match, 20260825-233820): .run/resolver/work/resident__func_800D06E8/c0/rtu/func_800D06E8/t.c:1770: conflicting types for `Struct80078E78' | `.run/wave_ch/shard62/func_800D06E8.c` |
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| 13 | func_8017FBCC | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_8017FBCC.c` |
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| 14 | func_801832F8 | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_801832F8.c` |
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| 15 | func_8017F018 | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_8017F018.c` |
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| 16 | func_8018095C | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_8018095C.c` |
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| 17 | func_80181720 | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_80181720.c` |
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| 18 | func_8018DFC4 | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_8018DFC4.c` |
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| 19 | func_80062144 | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | |
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| 20 | func_80180B3C | None | | None | failed | | won't compile standalone (loose-typing / missing decl) | `.run/backlog_drafts/func_80180B3C.c` |
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