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moved crates in lib/ to src/, renamed crates, modified some files' text (#660)

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moved crates in lib/ to src/, renamed crates, modified some files' text (#660)
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lazypassion
2019-01-28 18:56:54 -05:00
committed by Dan Gohman
parent 54959cf5bb
commit 747ad3c4c5
508 changed files with 94 additions and 92 deletions
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cranelift/bforest/README.md Normal file
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This crate contains array-based data structures used by the core Cranelift code
generator which represent a set of small ordered sets or maps.
**These are not general purpose data structures that are somehow magically faster that the
standard library's `BTreeSet` and `BTreeMap` types.**
The tradeoffs are different:
- Keys and values are expected to be small and copyable. We optimize for 32-bit types.
- A comparator object is used to compare keys, allowing smaller "context free" keys.
- Empty trees have a very small 32-bit footprint.
- All the trees in a forest can be cleared in constant time.