4cac1614bf
This adds derived `Serialize` and `Deserialize` implementations for exposed types that describe registers, operands, and related program inputs; entity indices; and regalloc output types. This allows serialization of any of the embedder's IR data types that may embed or build upon regalloc2 types. These implementations (and the dependency on the `serde` crate itself) are enabled only when the non-default `enable-serde` feature is specified.
regalloc2: another register allocator
This is a register allocator that started life as, and is about 50% still, a port of IonMonkey's backtracking register allocator to Rust. In many regards, it has been generalized, optimized, and improved since the initial port, and now supports both SSA and non-SSA use-cases.
In addition, it contains substantial amounts of testing infrastructure (fuzzing harnesses and checkers) that does not exist in the original IonMonkey allocator.
See the design overview for (much!) more detail on how the allocator works.
License
This crate is licensed under the Apache 2.0 License with LLVM
Exception. This license text can be found in the file LICENSE.
Parts of the code are derived from regalloc.rs: in particular,
src/checker.rs and src/domtree.rs. This crate has the same license
as regalloc.rs, so the license on these files does not differ.