Optimized IR:
/// @use-src 0:"yul_optimizer_steps_with_empty_cleanup_sequence/input.sol"
object "C_8" {
    code {
        {
            /// @src 0:80:314  "contract C {..."
            mstore(64, memoryguard(0x80))
            /// @src 0:129:306  "assembly (\"memory-safe\") {..."
            let usr$a := 0
            revert(0, usr$a)
        }
    }
    /// @use-src 0:"yul_optimizer_steps_with_empty_cleanup_sequence/input.sol"
    object "C_8_deployed" {
        code {
            {
                /// @src 0:80:314  "contract C {..."
                mstore(64, memoryguard(0x80))
                revert(0, 0)
            }
        }
        data ".metadata" hex"<BYTECODE REMOVED>"
    }
}
