[spec] a missing condition in Instr_ok2/frame#2212
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rossberg
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Jul 23, 2026
| -- Frame_ok: s |- f : C' | ||
| -- if C'.RETURN = t^n | ||
| -- Expr_ok2: s; C' |- instr* : t^n | ||
| -- Resulttype_ok: {} |- t^n : OK |
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Ah, yes. At the same time, this line should actually be redundant, shouldn't it? Can you try to remove it?
rossberg
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Jul 23, 2026
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This is uncovered in Wasm 2.0's soundness appendix when @maximelegoupil works on the type soundness proof. Back porting it to Wasm 3.0.