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bors a93bcdc307 Auto merge of #109849 - scottmcm:more-fieldidx-rebase, r=oli-obk 
Use `FieldIdx` in various things related to aggregates

Shrank `AggregateKind` by 8 bytes on x64, since the active field of a union is tracked as an `Option<FieldIdx>` instead of `Option<usize>`.

Part 3/? of https://github.com/rust-lang/compiler-team/issues/606

[`IndexSlice`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_index/vec/struct.IndexVec.html#deref-methods-IndexSlice%3CI,+T%3E) was added in https://github.com/rust-lang/rust/pull/109787
2023-04-02 21:40:29 +00:00
..
src Auto merge of #109849 - scottmcm:more-fieldidx-rebase, r=oli-obk 2023-04-02 21:40:29 +00:00
Cargo.toml Update indexmap and rayon crates 2023-03-25 02:12:13 +01:00
messages.ftl Simplify message paths 2023-03-11 22:51:57 +01:00
README.md

README.md

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