feat(igla): Wave Loop 885 — module-scope [589][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes

[gHashTag]

Closes #1830

Adds the next mechanical packed-vector witness beyond the 1 MiBit line.

What changed

• New spec specs/scratch/w885_bench_module_589x2p6_aos_var_call_write.t27 — module-scope [589][2]^6 Pt array-of-struct variable initialized from a function call, with indexed signed field writes and assert_eq read-back in a bench block.
• Generator scripts/gen_w885.py copied from W884 and updated (OUTER = 589, MID_IDX = 294).
• Integration test accepts_w885_bench_module_589x2p6_aos_var_call_write added to bootstrap/tests/icarus_lowerable.rs.
• Fresh seal .trinity/seals/scratch_w885_bench_module_589x2p6_aos_var_call_write.json.
• .trinity/current-issue.md points to Wave Loop 885.

Validation

• t27c parse → PASS
• t27c icarus-lowerable → lowerable
• t27c icarus-simulate → PASSED (17 cycles)
• t27c icarus-cocotb → reference-model OK
• t27c seal --save → saved and verified
• Targeted Rust test → PASS
• Full icarus_lowerable suite: 344 passed; 1 pre-existing corpus_classifier_matches_lean_completeness mismatch for specs/cloud/railway_deploy.t27 (not introduced by this wave).

Notes

• Zero compiler / reference-model / FROZEN_HASH changes.
• Branch based on wave-loop-884 HEAD because earlier wave PRs remain open.

[github-actions]

PR Dashboard

Generated at: 2026-08-07 03:55:31 UTC

• feat(igla): Wave Loop 885 — module-scope [589][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1831 feat(igla): Wave Loop 885 — module-scope [589][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-07 | Updated: 2026-08-07 | 12 failing / 16 total
• feat(igla): Wave Loop 884 — module-scope [587][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1829 feat(igla): Wave Loop 884 — module-scope [587][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-07 | Updated: 2026-08-07 | 3 failing / 25 total
• feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1815 feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 1 total
• feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1813 feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total
• feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1810 feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total

Summary

Status	Count
Total Open PRs	5
PRs with Failing Checks	1
PRs with All Checks Green	4
READY	3
FAILING	1
PENDING	0

Seal Status

• ⚠️ STALE -- sha256(compiler.rs)=4c1aaad5309a != manifest seal=87e5cbd3ad94.
  The committed NMSE numbers were certified against an older compiler.rs.
  Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

[github-actions]

📓 NotebookLM Notebook linked to this PR

• Notebook ID: b83263109fb055dc
• URL: https://notebooklm.google.com/notebook/b83263109fb055dc

This notebook contains session context, decisions, and artifacts for this work.