1 # These defaults are meant for contributors to the compiler who do not modify codegen or LLVM
3 # This enables `RUSTC_LOG=debug`, avoiding confusing situations
4 # where adding `debug!()` appears to do nothing.
5 # However, it makes running the compiler slightly slower.
7 # This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower.