1 # These defaults are meant for contributors to the compiler who modify codegen or LLVM
3 # This enables debug-assertions in LLVM,
4 # catching logic errors in codegen much earlier in the process.
8 # This enables `RUSTC_LOG=debug`, avoiding confusing situations
9 # where adding `debug!()` appears to do nothing.
10 # However, it makes running the compiler slightly slower.
12 # This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower.