Optimizing away bounds checks when zipping two iters of the same length
⚓ Rust 📅 2025-12-13 👤 surdeus 👁️ 1Consider Rust Playground
fn bla(a: Vec<i64>, b: Vec<i64>) -> i64 {
let mut r = 0i64;
assert!(a.len() == b.len());
for (x,y) in a.iter().zip(b.iter()) {
r += x+y;
}
r
}
Does rustc optimize away the bounds checks in the loops because it knows from the assert! that the two zipped vectors have the same length?
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