2052 Commits

Author SHA1 Message Date
Pavel Grigorenko
aa80a2b62c Port #[rustc_skip_during_method_dispatch] to the new attribute system 2025-06-23 22:48:20 +03:00
Guillaume Gomez
1474a0f505
Rollup merge of #142874 - marxin:cranelift-typo-fix, r=bjorn3
cranelift: fix target feature name typo: "fxsr"

Fix a typo introduced in 71b698c0b81c2e35c852ebcdf1f5cbe9e9162a50

CC: `@clubby789` `@bjorn3`
2025-06-22 17:35:36 +02:00
Martin Liska
75674e2c2a cranelift: fix target feature name type: "fxsr" 2025-06-22 16:32:54 +02:00
mejrs
b1d18129d1 Implement DesugaringKind::FormatLiteral 2025-06-22 10:58:25 +02:00
Matthias Krüger
24f797ed84
Rollup merge of #142787 - samueltardieu:diag-items-for-clippy, r=Manishearth,Urgau
Add diagnostic items for Clippy

Clippy still uses some paths to access items from the standard library. Adding the missing diagnostic items allows removing the last remaining paths.

Closes rust-lang/rust-clippy#5393
2025-06-21 10:53:26 +02:00
Jakub Beránek
31663db896
Rollup merge of #142767 - nnethercote:symbol-cleanups, r=petrochenkov
Some symbol and PathRoot cleanups

I'm looking into unifying how we join and print paths. Here are some preliminary cleanups.

r? ``@petrochenkov``
2025-06-20 20:03:24 +02:00
Samuel Tardieu
6a9f223f00 Add diagnostic items for Clippy 2025-06-20 17:53:09 +02:00
Nicholas Nethercote
1edf201937 Avoid some unnecessary symbol interning.
- `Ident::from_str_and_span` -> `Ident::new` when the string is
  pre-interned.
- `Ident::from_str` -> `Ident::with_dummy_span` when the string is
  pre-interned.
- `_d` and `_e` are unused.
2025-06-20 13:18:41 +10:00
Nicholas Nethercote
4a1f445142 Use a symbol for ExpansionConfig::crate_name.
This avoids some symbol interning and `to_string` conversions.
2025-06-20 13:17:39 +10:00
Romain Perier
a1a3bef6f0 Implement lint against direct uses of rustc_type_ir in compiler crates
This commit adds a lint to prevent the use of rustc_type_ir in random
compiler crates, except for type system internals traits, which are
explicitly allowed. Moreover, this fixes diagnostic_items() to include
the CRATE_OWNER_ID, otherwise rustc_diagnostic_item attribute is ignored
on the crate root.
2025-06-18 16:01:41 +02:00
David Wood
d43da6f4de
trait_sel: {Meta,Pointee}Sized on Sized types
Introduce the `MetaSized` and `PointeeSized` traits as supertraits of
`Sized` and initially implement it on everything that currently
implements `Sized` to isolate any changes that simply adding the
traits introduces.
2025-06-16 15:00:22 +00:00
bors
0cbc076438 Auto merge of #142388 - cjgillot:span-hash, r=davidtwco
Do not clone Arc when hashing span.

Tiny improvement I was when trying to profile span hashing.
2025-06-15 05:27:08 +00:00
bors
8da623945f Auto merge of #142443 - matthiaskrgr:rollup-l1l6d0v, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - rust-lang/rust#128425 (Make `missing_fragment_specifier` an unconditional error)
 - rust-lang/rust#135927 (retpoline and retpoline-external-thunk flags (target modifiers) to enable retpoline-related target features)
 - rust-lang/rust#140770 (add `extern "custom"` functions)
 - rust-lang/rust#142176 (tests: Split dont-shuffle-bswaps along opt-levels and arches)
 - rust-lang/rust#142248 (Add supported asm types for LoongArch32)
 - rust-lang/rust#142267 (assert more in release in `rustc_ast_lowering`)
 - rust-lang/rust#142274 (Update the stdarch submodule)
 - rust-lang/rust#142276 (Update dependencies in `library/Cargo.lock`)
 - rust-lang/rust#142308 (Upgrade `object`, `addr2line`, and `unwinding` in the standard library)

Failed merges:

 - rust-lang/rust#140920 (Extract some shared code from codegen backend target feature handling)

r? `@ghost`
`@rustbot` modify labels: rollup

try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-gnu
try-job: dist-i586-gnu-i586-i686-musl
try-job: test-various
2025-06-13 17:44:15 +00:00
Matthias Krüger
86e9995e7a
Rollup merge of #142410 - RalfJung:align_of, r=WaffleLapkin,workingjubilee
intrinsics: rename min_align_of to align_of

Now that `pref_align_of` is gone (https://github.com/rust-lang/rust/pull/141803), we can give the intrinsic backing `align_of` its proper name.

r? `@workingjubilee` or `@bjorn3`
2025-06-13 05:16:59 +02:00
Matthias Krüger
fac011eb2d
Rollup merge of #142158 - xizheyin:141617, r=jdonszelmann
Tracking the old name of renamed unstable library features

This PR resolves the first problem of rust-lang/rust#141617 : tracking renamed unstable features. The first commit is to add a ui test, and the second one tracks the changes. I will comment on the code for clarification.

r? `@jdonszelmann`
There have been a lot of PR's reviewed by you lately, thanks for your time!

cc `@jyn514`
2025-06-13 05:16:56 +02:00
Folkert de Vries
5f73ce2b7e
add extern "custom" functions 2025-06-12 20:27:10 +02:00
Ralf Jung
62418f4c56 intrinsics: rename min_align_of to align_of 2025-06-12 17:50:25 +02:00
xizheyin
b8066f94fd
Tracking the old name of renamed unstable library attribute
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
2025-06-12 19:24:11 +08:00
Nicholas Nethercote
376cbc3787 Introduce -Zmacro-stats.
It collects data about macro expansions and prints them in a table after
expansion finishes. It's very useful for detecting macro bloat,
especially for proc macros.

Details:
- It measures code snippets by pretty-printing them and then measuring
  lines and bytes. This required a bunch of additional pretty-printing
  plumbing, in `rustc_ast_pretty` and `rustc_expand`.
- The measurement is done in `MacroExpander::expand_invoc`.
- The measurements are stored in `ExtCtxt::macro_stats`.
2025-06-12 21:17:17 +10:00
Camille GILLOT
a5ff3cc3f5 Do not clone Arc when hashing span. 2025-06-11 23:44:22 +00:00
Jubilee
940a43677a
Rollup merge of #142194 - bjorn3:less_unstable_features, r=jieyouxu
Remove all unused feature gates from the compiler
2025-06-08 17:17:58 -07:00
bjorn3
9223704f4b Remove all unused feature gates from the compiler 2025-06-08 14:50:42 +00:00
Ralf Jung
8808c9d34b intrinsics: use const generic to set atomic ordering 2025-06-07 21:45:58 +02:00
Jakub Beránek
b2743c7fb1
Rollup merge of #141874 - usamoi:eps, r=tgross35
add f16_epsilon and f128_epsilon diagnostic items

cc https://github.com/rust-lang/rust/issues/116909
r? ``@tgross35``
2025-06-02 15:19:19 +02:00
bors
52882f6522 Auto merge of #119899 - onur-ozkan:redesign-stage0-std, r=albertlarsan68,jieyouxu,mark-simulacrum,kobzol,jyn514,Noratrieb,WaffleLapkin,RalfJung,bjorn3
redesign stage 0 std

### Summary

**Blog post: https://blog.rust-lang.org/inside-rust/2025/05/29/redesigning-the-initial-bootstrap-sequence/**

This PR changes how bootstrap builds the stage 1 compiler by switching to precompiled stage 0 standard library instead of building the in-tree one. The goal was to update bootstrap to use the beta standard library at stage 0 rather than compiling it from source (see the motivation at https://github.com/rust-lang/compiler-team/issues/619).

Previously, to build a stage 1 compiler bootstrap followed this path:

```
download stage0 compiler -> build in-tree std -> compile stage1 compiler with in-tree std
```

With this PR, the new path is:

```
download stage0 compiler -> compile stage1 compiler with precompiled stage0 std
```

This also means that `cfg(bootstrap)`/`cfg(not(bootstrap))` is no longer needed for library development.

### Building "library"

Since stage0 `std` is no longer in-tree `x build/test/check library --stage 0` is now no-op. The minimum supported stage to build `std` is now 1. For the same reason, default stage values in the library profile is no longer 0.

Because building the in-tree library now requires a stage1 compiler, I highly recommend library developers to enable `download-rustc` to speed up compilation time.

<hr>

**Blog post: https://blog.rust-lang.org/inside-rust/2025/05/29/redesigning-the-initial-bootstrap-sequence/**

If you encounter a bug or unexpected results please open a topic in the [#t-infra/bootstrap](https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap) Zulip channel or create a [bootstrap issue](https://github.com/rust-lang/rust/issues/new?template=bootstrap.md).

(Review thread: https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap/topic/Review.20thread.3A.20stage.200.20redesign.20PR/with/508271433)

~~Blocked on https://github.com/rust-lang/rust/pull/122709~~

try-job: dist-x86_64-linux
try-job: `x86_64-msvc*`
try-job: `x86_64-apple-*`
try-job: `aarch64-apple`
try-job: x86_64-gnu
try-job: `x86_64-gnu-llvm*`
2025-06-02 07:49:18 +00:00
usamoi
d948907f80 add f16_epsilon and f128_epsilon 2025-06-02 08:00:15 +08:00
Scott McMurray
4668124cc7 slice.get(i) should use a slice projection in MIR, like slice[i] does 2025-05-30 12:04:41 -07:00
onur-ozkan
37cd39f3ce handle cfg bootstrap on compiler and miri
Signed-off-by: onur-ozkan <work@onurozkan.dev>
2025-05-30 21:03:54 +03:00
Matthias Krüger
ad2d91ce11
Rollup merge of #141507 - RalfJung:atomic-intrinsics, r=bjorn3
atomic_load intrinsic: use const generic parameter for ordering

We have a gazillion intrinsics for the atomics because we encode the ordering into the intrinsic name rather than making it a parameter. This is particularly bad for those operations that take two orderings. Let's fix that!

This PR only converts `load`, to see if there's any feedback that would fundamentally change the strategy we pursue for the const generic intrinsics.

The first two commits are preparation and could be a separate PR if you prefer.

`@BoxyUwU` -- I hope this is a use of const generics that is unlikely to explode? All we need is a const generic of enum type. We could funnel it through an integer if we had to but an enum is obviously nicer...

`@bjorn3` it seems like the cranelift backend entirely ignores the ordering?
2025-05-30 07:01:30 +02:00
Jacob Pratt
e7ef07a523
Rollup merge of #141690 - Patrick-6:intercept-mutex, r=m-ou-se
Add `rustc_diagnostic_item` to `sys::Mutex` methods

For an ongoing project for adding a concurrency model checker to Miri we need to be able to intercept locking/unlocking operations on standard library mutexes.

This PR adds diagnostic items to the relevant calls `lock`, `try_lock` and `unlock` for the `sys::Mutex` implementation on the targets we care about.
This PR also makes the internals of `pthread::Mutex` less public, to reduce the chance of anyone locking/unlocking a mutex without going through the intercepted methods.

r? ``@RalfJung``
2025-05-29 04:49:47 +02:00
Ralf Jung
4794ea176b atomic_load intrinsic: use const generic parameter for ordering 2025-05-28 22:57:55 +02:00
Trevor Gross
7f5f29b663
Rollup merge of #140697 - Sa4dUs:split-autodiff, r=ZuseZ4
Split `autodiff` into `autodiff_forward` and `autodiff_reverse`

This PR splits `#[autodiff]` macro so `#[autodiff(df, Reverse, args)]` would become `#[autodiff_reverse(df, args)]` and `#[autodiff(df, Forward, args)]` would become `#[autodiff_forwad(df, args)]`.
2025-05-28 10:28:08 -04:00
Patrick-6
2e99a880e2 Add diagnostic items to sys::Mutex 2025-05-28 15:12:56 +02:00
Trevor Gross
743d2527a2
Rollup merge of #140367 - folkertdev:asm-cfg, r=nnethercote
add `asm_cfg`: `#[cfg(...)]` within `asm!`

tracking issue: https://github.com/rust-lang/rust/issues/140364
blocked on: https://github.com/rust-lang/rust/pull/140490

This feature was discussed in https://github.com/rust-lang/rust/issues/140279. It allows configuring templates and operands in the assembly macros, for example:

```rust
asm!( // or global_asm! or naked_asm!
    "nop",
    #[cfg(target_feature = "sse2")]
    "nop",
    // ...
    #[cfg(target_feature = "sse2")]
    a = const 123, // only used on sse2
);
```

r? `@tgross35`

cc `@traviscross` `@Amanieu`

Now builds on https://github.com/rust-lang/rust/pull/140490, which should be merged first.
2025-05-27 20:28:30 -04:00
Folkert de Vries
e3bbbeeafd
support #[cfg(...)] on arguments to the asm! macros 2025-05-27 09:44:04 +02:00
Matthias Krüger
225ed8b9cf
Rollup merge of #141376 - nnethercote:rename-kw-Empty, r=petrochenkov
Rename `kw::Empty` as `sym::empty`.

Because the empty string is not a keyword.

r? `@petrochenkov`
2025-05-23 13:34:20 +02:00
bors
912981a9ea Auto merge of #141396 - matthiaskrgr:rollup-feg050g, r=matthiaskrgr
Rollup of 7 pull requests

Successful merges:

 - #135562 (Add ignore value suggestion in closure body)
 - #139635 (Finalize repeat expr inference behaviour with inferred repeat counts)
 - #139668 (Handle regions equivalent to 'static in non_local_bounds)
 - #140218 (HIR ty lowering: Clean up & refactor the lowering of type-relative paths)
 - #140435 (use uX::from instead of _ as uX in non - const contexts)
 - #141130 (rustc_on_unimplemented cleanups)
 - #141286 (Querify `coroutine_hidden_types`)

Failed merges:

 - #140247 (Don't build `ParamEnv` and do trait solving in `ItemCtxt`s when lowering IATs)

r? `@ghost`
`@rustbot` modify labels: rollup
2025-05-22 21:02:18 +00:00
Matthias Krüger
74b980d3a4
Rollup merge of #141377 - nnethercote:rm-unnecessary-is_empty-checks, r=GuillaumeGomez
Remove unnecessary `is_empty` checks

Part of #137978.

r? `@GuillaumeGomez`
2025-05-22 16:04:13 +02:00
Matthias Krüger
c385715806
Rollup merge of #141130 - mejrs:use_self, r=compiler-errors
rustc_on_unimplemented cleanups

Addresses some of the fixmes from https://github.com/rust-lang/rust/pull/139091 and https://github.com/rust-lang/rust/pull/140307.

- switch from `_Self` to `Self` in library
- properly validate that arguments in the `on` filter and the format strings are actually valid

See https://github.com/rust-lang/rustc-dev-guide/pull/2357 for the relevant documentation.
2025-05-22 16:02:30 +02:00
Nicholas Nethercote
c309065ece Remove is_empty check in Ident::is_numeric.
`Ident`s can no longer be empty, so the test always succeeds.
2025-05-22 13:31:19 +10:00
bors
6eef33bb39 Auto merge of #137198 - tgross35:cfg-match-rename, r=Amanieu
Rename `cfg_match!` to `cfg_select!`

[`@Nemo157` pointed out](https://github.com/rust-lang/rust/issues/115585#issuecomment-2346307605) that `cfg_match!` syntax does not actually align well with match syntax, which is a possible source of confusion. The comment points out that usage is instead more similar to ecosystem `select!` macros. Rename `cfg_match!` to `cfg_select!` to match this.

Tracking issue: https://github.com/rust-lang/rust/issues/115585

[1]: https://github.com/rust-lang/rust/issues/115585#issuecomment-2346307605
2025-05-22 02:14:23 +00:00
Nicholas Nethercote
849cabf4c4 Rename kw::Empty as sym::empty.
Because the empty string is not a keyword.
2025-05-22 11:55:22 +10:00
Nicholas Nethercote
1cc0e38fdc Avoid creating an empty identifer in Symbol::to_ident_string.
Because that causes an assertion failure in debug builds.

Fixes #140884.
2025-05-21 18:59:04 +10:00
Marcelo Domínguez
f92d84cc6e Initial naive implementation using Symbols to represent autodiff modes (Forward, Reverse)
Since the mode is no longer part of `meta_item`, we must insert it manually (otherwise macro expansion with `#[rustc_autodiff]` won't work).

This can be revised later if a more structured representation becomes necessary (using enums, annotated structs, etc).

Some tests are currently failing. I'll address them next.
2025-05-21 07:24:42 +00:00
Trevor Gross
999967a57d Rename cfg_match! to cfg_select!
At [1] it was pointed out that `cfg_match!` syntax does not actually
align well with match syntax, which is a possible source of confusion.
The comment points out that usage is instead more similar to ecosystem
`select!` macros. Rename `cfg_match!` to `cfg_select!` to match this.

Tracking issue: https://github.com/rust-lang/rust/issues/115585

[1]: https://github.com/rust-lang/rust/issues/115585#issuecomment-2346307605
2025-05-20 21:16:23 +00:00
Marcelo Domínguez
b21c9e7bfb Split autodiff into autodiff_forward and autodiff_reverse
Pending fix.
```
error: cannot find a built-in macro with name `autodiff_forward`
    --> library\core\src\macros\mod.rs:1542:5
     |
1542 | /     pub macro autodiff_forward($item:item) {
1543 | |         /* compiler built-in */
1544 | |     }
     | |_____^

error: cannot find a built-in macro with name `autodiff_reverse`
    --> library\core\src\macros\mod.rs:1549:5
     |
1549 | /     pub macro autodiff_reverse($item:item) {
1550 | |         /* compiler built-in */
1551 | |     }
     | |_____^

error: could not compile `core` (lib) due to 2 previous errors
```
2025-05-20 11:58:26 +00:00
mejrs
9ffd0bf75a do away with _Self and TraitName and check generic params for rustc_on_unimplemented 2025-05-17 15:15:53 +02:00
Samuel Tardieu
7b1ba425e7 Add Ipv4Addr and Ipv6Addr diagnostic items
They will be used in Clippy to detect runtime parsing of known-valid
IP addresses.
2025-05-14 09:34:25 +02:00
Pietro Albini
2ce08ca5d6
update cfg(bootstrap) 2025-05-12 15:33:37 +02:00
León Orell Valerian Liehr
3c8950c30d
Rollup merge of #140792 - Urgau:minimum-maximum-intrinsics, r=scottmcm,traviscross,tgross35
Use intrinsics for `{f16,f32,f64,f128}::{minimum,maximum}` operations

This PR creates intrinsics for `{f16,f32,f64,f64}::{minimum,maximum}` operations.

This wasn't done when those operations were added as the LLVM support was too weak but now that LLVM has libcalls for unsupported platforms we can finally use them.

Cranelift and GCC[^1] support are partial, Cranelift doesn't support `f16` and `f128`, while GCC doesn't support `f16`.

r? `@tgross35`

try-job: aarch64-gnu
try-job: dist-various-1
try-job: dist-various-2

[^1]: https://www.gnu.org/software///gnulib/manual/html_node/Functions-in-_003cmath_002eh_003e.html
2025-05-11 02:44:36 +02:00