FA-11445 / Compiler transformation correctness / Member archive
Constant propagation retains a fact after an unknown assignment · case 05
Constant propagation retains a fact after an unknown assignment.
Case contract
Interpret assignment facts (name, kind, value); const sets a known integer, input and call invalidate that name. Return final known facts.
Why this case matters
A deterministic miniature compiler-pass model; inputs are explicit IR facts, not a production compiler.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| input kills constant | {"x": 5} | {} | Failed |
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