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AnyPS5/docs/dev
NikoandClaude Opus 5.5 1c958de097 feat(recompiler): structurize refused control flow with reach flags
When every attempt of the structurizer ladder refuses a graph, the title
aborts. Rebuild such a graph from a hierarchical decomposition into
strongly connected components instead: each original block keeps one copy
and runs behind a guard on its own reach flag, and each component becomes
a loop with a single latch that repeats it while a back edge set its again
flag. Every edge sets the reach flag of its target, so exactly one flag
names the next original block and the blocks run in the input's order for
every branch decision. Irreducible and non-terminating graphs are handled
the same way, and no block is cloned.

The ladder runs first and its output is unchanged. The fallback only runs
when both attempt series refuse; if it cannot structure the graph, the
ladder's error is reported as before. Blocks that start the top-level
order unconditionally run unguarded, so the entry block's results reach
later blocks without a stale path. APS5_FORCE_STRUCTURIZER_FALLBACK=1
uses the construction for every supported graph, for tests.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-14 00:59:50 +02:00
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