Apple: Avoid redundant `-Wl,-dylib` flag when linking
Seems to have been introduced all the way back in e338a4154b, but should be redundant, `-dynamiclib` should already make `cc` set `-dylib` when linking.
Spotted this while trying to get `-Clinker-flavor=gcc` and `-Clinker-flavor=ld` closer together, not that important to fix.
`@rustbot` label O-apple
fix/update teach_note from 'escaping mutable ref/ptr' const-check
The old note was quite confusing since it talked about statics, but the message is also shown for consts. So let's reword to something that is true for both of them.
Fix a few relative paths in rustc doc
## Changes
- Don't inline the doc for re-exporting some structs that have relative paths in doc.
## Context
See #124028.
- Most of the relative links in rustdoc are there because of circular import (so syntax like `[MyType]: rustc_foo::bar` is difficult to achieve when we cannot import `rustc_xxx` due to circular import)
- Here, I disable new links for re-exports. I think it's fine for re-exported items in `hir::*`.
- There is a few more relative links in other `rustc` crates, however they are not addressed in this PR, as they are not re-exported and/so the relative paths are working.
Closes#124028.
r? `@fmease`
Let me know if I miss anything or there's any other way to address this issue.
LLVM 20 split out what used to be called b16b16 and correspond to aarch64
FEAT_SVE_B16B16 into sve-b16b16 and sme-b16b16.
Add sme-b16b16 as an explicit feature and update the codegen accordingly.
Fix needless_lifetimes in rustc_serialize
Hi,
This PR fixes the following clipy warnings:
```
warning: the following explicit lifetimes could be elided: 'a
--> compiler/rustc_serialize/src/serialize.rs:328:6
|
328 | impl<'a, S: Encoder, T: Encodable<S>> Encodable<S> for Cow<'a, [T]>
| ^^ ^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
= note: `#[warn(clippy::needless_lifetimes)]` on by default
help: elide the lifetimes
|
328 - impl<'a, S: Encoder, T: Encodable<S>> Encodable<S> for Cow<'a, [T]>
328 + impl<S: Encoder, T: Encodable<S>> Encodable<S> for Cow<'_, [T]>
|
warning: the following explicit lifetimes could be elided: 'a
--> compiler/rustc_serialize/src/serialize.rs:348:6
|
348 | impl<'a, S: Encoder> Encodable<S> for Cow<'a, str> {
| ^^ ^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
|
348 - impl<'a, S: Encoder> Encodable<S> for Cow<'a, str> {
348 + impl<S: Encoder> Encodable<S> for Cow<'_, str> {
|
warning: the following explicit lifetimes could be elided: 'a
--> compiler/rustc_serialize/src/serialize.rs:355:6
|
355 | impl<'a, D: Decoder> Decodable<D> for Cow<'a, str> {
| ^^ ^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
|
355 - impl<'a, D: Decoder> Decodable<D> for Cow<'a, str> {
355 + impl<D: Decoder> Decodable<D> for Cow<'_, str> {
```
Best regards,
Michal
compiler: Stop reexporting enum-globs from `rustc_target::abi`
Three enums had **all** their variants glob-exported into a distressingly large amount of the tree. Cease to do that, and also cease to glob import the contents of the module that contained them. Redirect relevant imports to their actual source, the `rustc_abi` crate.
No functional changes.
Dont ICE when encountering post-mono layout cycle error
It's possible to encounter post-mono layout cycle errors in `fn_abi_of_instance`. Don't ICE in those cases.
This was originally discovered in an async fn, but that's not the only way to encounter such an error (which the other test I added should demonstrate).
Error messsages suck, but this fix is purely about suppressing the ICE.
Fixes#131409
[Coverage][MCDC] Adapt mcdc to llvm 19
Related issue: #126672
Also finish task 4 at #124144
[llvm #82448](https://github.com/llvm/llvm-project/pull/82448) has introduced some break changes into mcdc, causing incompatibility between llvm 18 and 19. This draft adapts to that change and gives up supporting for llvm-18.
`Deref`/`DerefMut` can be useful, but they can also obfuscate. I don't
think they're worth it for `RegionConstraintCollector`. They're also not
present on the similar types `OpaqueTypeTable` and `TypeVariableTable`.
`LeakCheck` can own `mini_graph` and `rcc` instead of holding references
to them. This requires inlining `assign_scc_value` to avoid a borrowck
error, but that's fine because it has a single call site.
It's a weird method, and used weirdly:
- It's on `RegionConstraintCollector` but operates on
`RegionConstraintStorage`. So at both call sites we create a temporary
`RegionConstraintCollector`, using `with_log`, to call it.
- It `take`s just two of the six fields in `RegionConstraintStorage`.
At one of the two call sites we unnecessarily clone the entire
`RegionConstraintStorage` just to take those two fields.
This commit just inlines and removes it. We no longer need to `take` the
two fields, we can just use them directly.
