2 ms·

Is there some benchmarking work that has quantified this speedup from aliasing guarantees or is this more of a sufficiently smart compiler[1] thing? [1] https:

• DonaldPShimoda 2y ago
  The Sufficiently Smart Compiler is a hypothetical argument used in advocating for a programming language whose naive implementations might tend towards inefficient designs, whereas the aliasing argument is not itself hypothetical but it may not be backed by data. That's a different thing altogether. Whether the aliasing argument holds water does not affect whether it was used as justification for Rust's design.
• vlovich123 2y ago
  Of course: https://github.com/rust-lang/rust/issues/54878#issuecomment-767151730 https://github.com/rust-lang/rust/issues/54878#issuecomment-... TLDR: 0-5% faster with noalias optimizations on. You can always try running some benchmarks by building code with -Zmutable-noalias=no.
  • fulafel 2y ago
    Thanks. If anyone has a link to results handy I'd be intersted. In particular a lot changes can be said to be 0-5% where the average is very close to 0...
• deleted 2y ago
  [deleted]