Function powi_exp_encode 

pub fn powi_exp_encode(exp: i32) -> u32

Available on crate feature bytecode only.

Encode a powi exponent as a value that can be stored in arg_indices[1].

This is a bit-preserving reinterpretation (i32 as u32), NOT a numeric conversion. The round-trip powi_exp_decode_raw(powi_exp_encode(n)) == n holds for all i32 values including negatives and i32::MIN.