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Rollup of 12 pull requests
Successful merges:
- #138703 (chore: remove redundant words in comment)
- #139186 (Refactor `diy_float`)
- #139780 (docs: Add example to `Iterator::take` with `by_ref`)
- #139802 (Fix some grammar errors and hyperlinks in doc for `trait Allocator`)
- #140034 (simd_select_bitmask: the 'padding' bits in the mask are just ignored)
- #140062 (std: mention `remove_dir_all` can emit `DirectoryNotEmpty` when concurrently written into)
- #140420 (rustdoc: Fix doctest heuristic for main fn wrapping)
- #140460 (Fix handling of LoongArch target features not supported by LLVM 19)
- #140538 (rustc-dev-guide subtree update)
- #140544 (Clean up "const" situation in format_args!(). )
- #140552 (allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`)
- #140556 (Improve error output in case `nodejs` or `npm` is not installed for rustdoc-gui test suite)
r? `@ghost`
`@rustbot` modify labels: rollup
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GuillaumeGomez:improve-rustdoc-gui-tool-error-output, r=clubby789
Improve error output in case `nodejs` or `npm` is not installed for rustdoc-gui test suite
Fixes https://github.com/rust-lang/rust/issues/138134.
It now looks like this:
cc ``@kpreid``
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folkertdev:naked-function-rustc_std_internal_symbol, r=bjorn3
allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`
The need for this came up in https://github.com/rust-lang/compiler-builtins/pull/897, but in general this seems useful and valid to allow.
Based on a quick scan, I don't think changes to the generated assembly are needed.
cc ``@bjorn3``
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Clean up "const" situation in format_args!().
This cleans up the "const" situation in the format_args!() expansion/lowering.
Rather than marking the Argument::new_display etc. functions as non-const, this marks the Arguments::new_v1 functions as non-const.
Example expansion/lowering of format_args!() in const:
```rust
// Error: cannot call non-const formatting macro in constant functions
const {
fmt::Arguments::new_v1( // Now the error is produced here.
&["Hello, ", "!\n"],
&[
fmt::Argument::new_display(&world) // The error used to be produced here.
],
)
}
```
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rustc-dev-guide subtree update
r? ``@ghost``
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Fix handling of LoongArch target features not supported by LLVM 19
Fixes #140455
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rustdoc: Fix doctest heuristic for main fn wrapping
Fixes #140412 which regressed in #140220 that I reviewed. As mentioned in https://github.com/rust-lang/rust/pull/140220#issuecomment-2837061779, at the time I didn't have the time to re-review its latest changes and should've therefore invalided my previous "r=me" and blocked the PR on another review given the fragile nature of the doctest impl. This didn't happen which is my fault.
Contains some other small changes. Diff best reviewed modulo whitespace.
r? ``@GuillaumeGomez``
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std: mention `remove_dir_all` can emit `DirectoryNotEmpty` when concurrently written into
Closes #139958
The current documentation for `std::fs::remove_dir_all` function does not explicitly mention the error types that may be returned in concurrent scenarios. Specifically, when one thread attempts to remove a directory tree while another thread simultaneously writes files to that directory, the function may return an `io::ErrorKind::DirectoryNotEmpty` error, but this behavior is not clearly mentioned in the current documentation.
r? libs
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simd_select_bitmask: the 'padding' bits in the mask are just ignored
Fixes https://github.com/rust-lang/rust/issues/137942: we documented simd_select_bitmask to require the 'padding' bits in the mask (the mask can sometimes be longer than the vector; I am referring to these extra bits as 'padding' here) to be zero, mostly because nobody felt like doing the research for what should be done when they are non-zero. However, codegen is already perfectly happy just ignoring them, so in practice they can have any value. Some of the intrinsic wrappers in stdarch have trouble ensuring that they are zero. So let's just adjust the docs and Miri to permit non-zero 'padding' bits.
Cc ````@Amanieu```` ````@workingjubilee````
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Fix some grammar errors and hyperlinks in doc for `trait Allocator`
I was reading the allocator docs and noticed some weird sentences and missing hyperlink, so I fixed them and made this small PR.
* "while until either" could also be changed to "for a while until either", but I just deleted "while".
* fixed sentence with incorrect "at" and "has/have".
* linked [*currently allocated*] similar to other methods. All other hyperlinks are fine.
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r=workingjubilee
docs: Add example to `Iterator::take` with `by_ref`
If you want to logically split an iterator after `n` items, you might first discover `take`. Before this change, you'd find that `take` consumes the iterator, and you'd probably be stuck. The answer involves `by_ref`, but that's hard to discover, especially since `by_ref` is a bit abstract and `Iterator` has many methods.
After this change, you'd see the example showing `take` along with `by_ref`, which allows you to continue using the rest of the iterator. `by_ref` had a good example involving `take` already, so this change just duplicates that existing example under `take`.
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Refactor `diy_float`
The refactor replaces bespoke algorithms with functions already inside the standard library, improving both codegen and readability.
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chore: remove redundant words in comment
remove redundant words in comment
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r=lcnr
Decouple SCC annotations from SCCs
This rewires SCC annotations to have them be a separate, visitor-type data structure. It was broken out of #130227, which needed them to be able to remove unused annotations after computation without recomputing the SCCs themselves.
As a drive-by it also removes some redundant code from the hot loop in SCC construction for a performance improvement.
r? lcnr
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rustdoc-gui test suite
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shared-generics: Do not share instantiations that contain local-only types
In Zed shared-generics loading takes up a significant chunk of time in incremental build, as rustc deserializes rmeta of all dependencies of a crate. I've recently realized that shared-generics includes all instantiations of some_generic_function in the following snippet:
```rs
pub fn some_generic_function(_: impl Fn()) {}
pub fn non_generic_function() {
some_generic_function(|| {});
some_generic_function(|| {});
some_generic_function(|| {});
some_generic_function(|| {});
some_generic_function(|| {});
some_generic_function(|| {});
some_generic_function(|| {});
}
```
even though none of these instantiations can actually be created from outside of `non_generic_function`. This is a dummy example, but we do rely on invoking callbacks with FnOnce a lot in our codebase.
This PR makes shared-generics account for visibilities of generic arguments; an item is only considered for exporting if it is reachable from the outside or if all of it's arguments are visible outside of the local crate.
This PR reduces incremental build time for Zed (touch editor.rs scenario) from 12.4s to 10.4s. I'd love to see a perf run if possible; per my checks this PR does not incur new instantiations in downstream crates, so if there'd be perf regressions, I'd expect them to come from newly-introduced visibility checks.
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Rather than marking the Argument::new_display etc. functions as
non-const, this marks the Arguments::new_v1 functions as non-const.
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Rustc pull update
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Adds 'with' to the bootstrapping docs to help clarify how to build a new compiler
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Add a jobserver proxy to ensure at least one token is always held
This adds a jobserver proxy to ensure at least one token is always held by `rustc`. Currently with `-Z threads` `rustc` can temporarily give up all its tokens, causing `cargo` to spawn additional `rustc` instances beyond the job limit.
The current behavior causes an issue with `cargo fix` which has a global lock preventing concurrent `rustc` instances, but it also holds a jobserver token, causing a deadlock when `rustc` gives up its token. That is fixed by this PR.
Fixes https://github.com/rust-lang/rust/issues/67385.
Fixes https://github.com/rust-lang/rust/issues/133873.
Fixes https://github.com/rust-lang/rust/issues/140093.
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Drop AST on a separate thread and prefetch `hir_crate`
This drop AST on a separate thread and prefetches `hir_crate`.
A `spawn` function is added to the `parallel` module which spawn some work on the Rayon thread pool.
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Rollup of 10 pull requests
Successful merges:
- #140385 (Subtree update of `rust-analyzer`)
- #140458 (Fix for async drop ice with partly dropped tuple)
- #140465 (chore: edit and move tests)
- #140467 (Don't FCW assoc consts in patterns)
- #140468 (Minor tweaks to make some normalization (adjacent) code less confusing)
- #140470 (CI: rfl: move job forward to Linux v6.15-rc4)
- #140476 (chore: delete unused ui/auxiliary crates)
- #140481 (Require sanitizers be enabled for asan_odr_windows.rs)
- #140486 (rustfmt: Also allow bool literals as first item of let chain)
- #140494 (Parser: Document restrictions)
r? `@ghost`
`@rustbot` modify labels: rollup
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Parser: Document restrictions
I had trouble easily understanding what these various flags do. This is my attempt to try to explain what these do.
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r=calebcartwright
rustfmt: Also allow bool literals as first item of let chain
This is a functional cherry-pick of https://github.com/rust-lang/rustfmt/pull/6492
I'm bringing this change over directly as the subtree sync is taking more effort than anticipated (some unrelated r-l/rustfmt changes need to be reverted before we perform the full sync) and we need to ensure that rustfmt behavior accounts with the final style guide rules as part of let chain stabilization.
r? ````@ghost````
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Require sanitizers be enabled for asan_odr_windows.rs
Issue Details:
The `asan_odr_windows.rs` test is failing on AArch64 Windows, as sanitizers aren't supported on that platform.
Fix Details:
Apply the correct "need sanitizer" requirements to the test.
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chore: delete unused ui/auxiliary crates
It appears that all the tests that used it have been moved to tests/ui/editions/ (or elsewhere) already.
r? `````@jieyouxu`````
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CI: rfl: move job forward to Linux v6.15-rc4
A hopefully routine upgrade to Linux v6.15-rc4!
r? `````@lqd````` `````@Kobzol`````
try-job: x86_64-rust-for-linux
`````@rustbot````` label A-rust-for-linux
`````@bors````` try
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