Commit Graph

15 Commits

Author SHA1 Message Date
Scott McMurray
5bbaeadc01 Move mir::Fieldabi::FieldIdx
The first PR for https://github.com/rust-lang/compiler-team/issues/606

This is just the move-and-rename, because it's plenty big-and-bitrotty already.  Future PRs will start using `FieldIdx` more broadly, and concomitantly removing `FieldIdx::new`s.
2023-03-28 22:22:37 -07:00
Scott McMurray
0439d13176 Refactor: VariantIdx::from_u32(0) -> FIRST_VARIANT
Since structs are always `VariantIdx(0)`, there's a bunch of files where the only reason they had `VariantIdx` or `vec::Idx` imported at all was to get the first variant.

So this uses a constant for that, and adds some doc-comments to `VariantIdx` while I'm there, since it doesn't have any today.
2023-03-25 18:58:25 -07:00
bjorn3
fce629d2e9 Merge commit 'dec0daa8f6d0a0e1c702f169abb6bf3eee198c67' into sync_cg_clif-2023-03-15 2023-03-15 14:41:48 +00:00
Oli Scherer
936bf29d4c s/eval_usize/eval_target_usize/ for clarity 2023-02-14 08:51:19 +00:00
bjorn3
e54a13f18b Merge commit '266e96785ab71834b917bf474f130a6d8fdecd4b' into sync_cg_clif-2022-10-23 2022-10-23 16:22:55 +02:00
Ralf Jung
3c8563abcf make NOP dyn casts not require anything about the vtable 2022-08-06 18:31:59 -04:00
bjorn3
7a3ed235eb Merge commit 'c19edfd71a1d0ddef86c2c67fdb40718d40a72b4' into sync_cg_clif-2022-07-25 2022-07-25 16:07:57 +02:00
Nicholas Nethercote
ca5525d564 Improve AdtDef interning.
This commit makes `AdtDef` use `Interned`. Much the commit is tedious
changes to introduce getter functions. The interesting changes are in
`compiler/rustc_middle/src/ty/adt.rs`.
2022-03-11 13:31:24 +11:00
Nicholas Nethercote
e9a0c429c5 Overhaul TyS and Ty.
Specifically, change `Ty` from this:
```
pub type Ty<'tcx> = &'tcx TyS<'tcx>;
```
to this
```
pub struct Ty<'tcx>(Interned<'tcx, TyS<'tcx>>);
```
There are two benefits to this.
- It's now a first class type, so we can define methods on it. This
  means we can move a lot of methods away from `TyS`, leaving `TyS` as a
  barely-used type, which is appropriate given that it's not meant to
  be used directly.
- The uniqueness requirement is now explicit, via the `Interned` type.
  E.g. the pointer-based `Eq` and `Hash` comes from `Interned`, rather
  than via `TyS`, which wasn't obvious at all.

Much of this commit is boring churn. The interesting changes are in
these files:
- compiler/rustc_middle/src/arena.rs
- compiler/rustc_middle/src/mir/visit.rs
- compiler/rustc_middle/src/ty/context.rs
- compiler/rustc_middle/src/ty/mod.rs

Specifically:
- Most mentions of `TyS` are removed. It's very much a dumb struct now;
  `Ty` has all the smarts.
- `TyS` now has `crate` visibility instead of `pub`.
- `TyS::make_for_test` is removed in favour of the static `BOOL_TY`,
  which just works better with the new structure.
- The `Eq`/`Ord`/`Hash` impls are removed from `TyS`. `Interned`s impls
  of `Eq`/`Hash` now suffice. `Ord` is now partly on `Interned`
  (pointer-based, for the `Equal` case) and partly on `TyS`
  (contents-based, for the other cases).
- There are many tedious sigil adjustments, i.e. adding or removing `*`
  or `&`. They seem to be unavoidable.
2022-02-15 16:03:24 +11:00
Charles Lew
6b1c52ff25 Fold vtable_trait_upcasting_coercion_new_vptr_slot logic into obligation processing. 2021-08-18 13:00:27 +08:00
bjorn3
279f486960 Merge commit '05677b6bd6c938ed760835d9b1f6514992654ae3' into sync_cg_clif-2021-08-06 2021-08-06 16:26:56 +02:00
Charles Lew
63ed625313 Implement pointer casting. 2021-08-03 01:09:37 +08:00
Charles Lew
d3ff497bec Update other codegens to use tcx managed vtable allocations. 2021-06-28 19:39:48 +08:00
bjorn3
7a6ea77473 Merge commit '9a0c32934ebe376128230aa8da3275697b2053e7' into sync_cg_clif-2021-03-05 2021-03-05 19:12:59 +01:00
bjorn3
ac4f7deb2f Add 'compiler/rustc_codegen_cranelift/' from commit '793d26047f994e23415f8f6bb5686ff25d3dda92'
git-subtree-dir: compiler/rustc_codegen_cranelift
git-subtree-mainline: cf798c1ec6
git-subtree-split: 793d26047f
2020-10-26 09:53:27 +01:00