0xdeadcode

These techniques can be employed in various ways, making it challenging for security experts to distinguish between benign and malicious code.

; Function A is active function_A: call function_B ret 0xdeadcode

Last week I audited a contract with 14% unreachable instructions. The owner swore they were "leftover from testing." These techniques can be employed in various ways,

Modern compilers (GCC, LLVM/Clang) employ aggressive Dead Code Elimination (DCE). However, they are often conservative when removing code that: 0xdeadcode

Real example: A DAO's "emergency pause" was guarded by if (false && ownerOnly) — optimizer removed the ownerOnly check.