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bd4a96a12d
Use a lock-free datastructure for source_span follow up to the perf regression in https://github.com/rust-lang/rust/pull/105462 The main regression is likely the CStore, but let's evaluate the perf impact of this on its own
This directory contains some source code for the Rust project, including:
- The bootstrapping build system
- Various submodules for tools, like cargo, tidy, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.