mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-03 02:40:40 +00:00
05abce5d05
explicitly end the lifetime of `va_list` tracking issue: https://github.com/rust-lang/rust/issues/44930 split out from: https://github.com/rust-lang/rust/pull/144549 The `va_list` is created in the compiler itself when the variable argument list `...` is desugared, and hence the lifetime end is not inserted automatically. The value can't outlive the function in which it was created, so it is correct to end the lifetime here. Ending the lifetime explicitly also appears to give slightly better codegen in https://github.com/rust-lang/rust/pull/144549. I also included a little drive-by improvement to not cast pointers to integers and back again. r? codegen
Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.