On 01/27/2018 11:42 AM, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
Careful with these comparisons guys. Know what you are looking at.Rust does not eliminate setting the framepointer register, and so it looks "bad" [1]. Clang also sets the framepointer for macOS ABI regardless of optimization level.
https://godbolt.org/g/eeo81n [1] See https://github.com/rust-lang/rust/pull/47152 -Johan