rust/rustc_middle at 2f3296192bb5be5fcb02975395052ee8c3b2bd68 - rust

History

Valerii Lashmanov 2f3296192b Only visit types once when walking the type tree

This fixes #72408.

Nested closures were resulting in exponential compilation time.

As a performance optimization this change introduces MiniSet,
which is a simple small storage optimized set.

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benches

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src

Only visit types once when walking the type tree

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Cargo.toml

Only visit types once when walking the type tree

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README.md

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README.md

For more information about how rustc works, see the rustc dev guide.