4455d1e57b
Reason about borrowed classes in CopyProp. Fixes https://github.com/rust-lang/rust/issues/141122 The current implementation of `CopyProp` avoids unifying two borrowed locals, as this would change the result of address comparison. However, the implementation was inconsistent with the general algorithm, which identifies equivalence classes of locals and then replaces all locals by a single representative of their equivalence class. This PR fixes it by forbidding the unification of two *classes* if any of those contain a borrowed local. |
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This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Why Rust?
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Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.
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Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
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