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devconnect arg / differential fuzzing of the vyper compiler

  • YouTube
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Differential Fuzzing of the Vyper Compiler

Duration: 00:21:29

Speaker:

Type: Talk

Expertise:

Event: Devcon

Date: Jul 2026

Charles Cooper, Lead Developer, Vyper This talk introduces problems in compiler security. Further, it showcases a differential fuzzer of the Vyper language utilizing an AST interpreter as the correctness oracle. Ivy, a new Vyper interpreter, executes Vyper AST in a custom EVM and enables Csmith-style semantic equivalence testing against the compiler's bytecode. AST-aware, type-safe contract generator enables wide language coverage: generate contract → execute traces → compare semantics.