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bors 760430e6fd Auto merge of #78863 - KodrAus:feat/simd-array, r=oli-obk 
Support repr(simd) on ADTs containing a single array field

This is a squash and rebase of `@gnzlbg's` #63531

I've never actually written code in the compiler before so just fumbled my way around until it would build 😅

I imagine there'll be some work we need to do in `rustc_codegen_cranelift` too for this now, but might need some input from `@bjorn3` to know what that is.

cc `@rust-lang/project-portable-simd`

-----

This PR allows using `#[repr(simd)]` on ADTs containing a single array field:

```rust
 #[repr(simd)] struct S0([f32; 4]);
 #[repr(simd)] struct S1<const N: usize>([f32; N]);
 #[repr(simd)] struct S2<T, const N: usize>([T; N]);
```

This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
2020-11-29 09:28:09 +00:00
..
benches mv compiler to compiler/ 2020-08-30 18:45:07 +03:00
src Auto merge of #78863 - KodrAus:feat/simd-array, r=oli-obk 2020-11-29 09:28:09 +00:00
Cargo.toml Address review comment and update chalk to 0.36.0 2020-10-30 19:39:33 +00:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

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