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Malte UblandClaude Opus 5.5 0d27008899 Classify zero-cost gate differences instead of failing every runtime change

Any change to the runtime's C sources makes every executable differ, so
the gate failed even when every program's IR and LLVM were byte-identical.
The gate now classifies each difference outside --allow:

- runtime-only: IR and LLVM identical, the same LLVM helper, runtime pack
  objects that differ between the checkouts (bitcode alone records the
  checkout path, so it does not count), and every symbol the executable
  gains, loses or resizes defined by a changed runtime object. It passes
  with a note that lists the changed runtime functions the program links
  (from the release and speed bitcode, through llvm-dis) and the size
  change.
- nondeterministic: the baseline builds the program again, and its two
  builds differ in the same artifacts. It passes with a note.
- differs: anything else; it fails as before.

--strict fails runtime-only and nondeterministic programs too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-25 15:26:18 -07:00

corpus

Keep the whole union of an optional parameter that reaches a recursive placeholder (#2241 )

2026-10-25 17:10:27 -05:00

coverage-fixtures

Merge main and skip package.json files without a scriptc key

2026-10-25 03:58:49 -05:00

deadstrip

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diagnostics

Run lone array callbacks as loops with their bodies inlined (#1997 )

2026-10-25 05:24:07 -05:00