Lower dense Faust graphs without compiler crashes #1

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opened 2026-08-22 16:39:43 +00:00 by peterswimm · 1 comment

peterswimm commented 2026-08-22 16:39:43 +00:00

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Problem

Several valid Nord patches reach the Faust compiler but terminate it with SIGBUS on dense generated graphs.

Scope

Identify graph patterns causing the crash and implement a safe lowering strategy that preserves patch routing while documenting approximation boundaries.

Acceptance

• validate-disting classifies failures without a compiler crash for the current dense fixtures.
• At least one previously SIGBUS patch produces an ARM .o.
• Add regression coverage and update release evidence.

## Problem Several valid Nord patches reach the Faust compiler but terminate it with SIGBUS on dense generated graphs. ## Scope Identify graph patterns causing the crash and implement a safe lowering strategy that preserves patch routing while documenting approximation boundaries. ## Acceptance - `validate-disting` classifies failures without a compiler crash for the current dense fixtures. - At least one previously SIGBUS patch produces an ARM `.o`. - Add regression coverage and update release evidence.

peterswimm commented 2026-08-22 16:40:38 +00:00

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SpelWork wish: 9a628959 — Peter Swimm domain backlog record.

SpelWork wish: `9a628959` — Peter Swimm domain backlog record.

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peter-swimm/nardwahl#1

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