Rollup of 6 pull requests #120170
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Rollup of 6 pull requests #120170
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Co-authored-by: fee1-dead <[email protected]>
Currently stable users can't benefit from this because GlobaAlloc doesn't support alignment-changing realloc and neither do most posix allocators. So in practice it always results in an extra memcpy.
…e impl is implemented on a type alias
"It's" expands to "it is". "Its" is the possessive form.
…n-ty-alias, r=notriddle Fix impl stripped in rustdoc HTML whereas it should not be in case the impl is implemented on a type alias Fixes rust-lang#119015. I talked about it a bit with ```@petrochenkov.``` They might change what `EffectiveVisibilities` return for impl items like this one and make them not only reachable but also re-exported, which would fix this case. It could also potentially break other things, so it'll be done whenever they can and then we can check together. Surprisingly, this fix is making rustdoc even closer to rustc in term of errors (the CI currently fails because currently accepted broken codes aren't working anymore with this change). Not sure exactly why though. This is linked to rust-lang#110631 from what I could find. So either I'm missing something here, or we consider it's ok and we consider the failing tests as "should fail" and I'll update `rustdoc-ui` ones. r? ```@notriddle```
Ensure `callee_id`s are body owners This PR makes the `callee_id` argument of Clippy's `implements_trait_with_env` optional, and when it is passed, ensures it is a body owner. rust-lang#118661 added the `callee_id` parameter to alleviate an ICE. Specifically, the `callee_id` is used to determine an "effect arg" in certain situations. Frankly, I [do not completely understand](rust-lang#118661 (comment)) what an "effect arg" is. But the code that determines it seems to require that `callee_id` is a body owner: - https://github.com/rust-lang/rust/blob/1ead4761e9e2f056385768614c23ffa7acb6a19e/src/tools/clippy/clippy_utils/src/ty.rs#L286-L288 - https://github.com/rust-lang/rust/blob/1ead4761e9e2f056385768614c23ffa7acb6a19e/compiler/rustc_middle/src/ty/util.rs#L834 - https://github.com/rust-lang/rust/blob/1ead4761e9e2f056385768614c23ffa7acb6a19e/compiler/rustc_middle/src/hir/map/mod.rs#L372 In the current head, some def ids passed as `callee_id`s are not body owners. This PR fixes that. cc ``@rust-lang/clippy`` r? ``@fee1-dead``
…ilstrieb Remove special handling of `box` expressions from parser rust-lang#108471 added a temporary hack to parse `box expr`. It's been almost a year since then, so I think it's safe to remove the special handling. As a drive-by cleanup, move `parser/removed-syntax*` tests to their own directory.
…viper Remove alignment-changing in-place collect This removes the alignment-changing in-place collect optimization introduced in rust-lang#110353 Currently stable users can't benefit from the optimization because GlobaAlloc doesn't support alignment-changing realloc and neither do most posix allocators. So in practice it has a negative impact on performance. Explanation from rust-lang#120091 (comment): > > You mention that in case of alignment mismatch -- when the new alignment is less than the old -- the implementation calls `mremap`. > > I was trying to note that this isn't really the case in practice, due to the semantics of Rust's allocator APIs. The only use of the allocator within the `in_place_collect` implementation itself is [a call to `Allocator::shrink()`](https://github.com/rust-lang/rust/blob/db7125f008cfd72e8951c9a863178956e2cbacc3/library/alloc/src/vec/in_place_collect.rs#L299-L303), which per its documentation [allows decreasing the required alignment](https://doc.rust-lang.org/1.75.0/core/alloc/trait.Allocator.html). However, in stable Rust, the only available `Allocator` is [`Global`](https://doc.rust-lang.org/1.75.0/alloc/alloc/struct.Global.html), which delegates to the registered `GlobalAlloc`. Since `GlobalAlloc::realloc()` [cannot change the required alignment](https://doc.rust-lang.org/1.75.0/core/alloc/trait.GlobalAlloc.html#method.realloc), the implementation of [`<Global as Allocator>::shrink()`](https://github.com/rust-lang/rust/blob/db7125f008cfd72e8951c9a863178956e2cbacc3/library/alloc/src/alloc.rs#L280-L321) must fall back to creating a brand-new allocation, `memcpy`ing the data into it, and freeing the old allocation, whenever the alignment doesn't remain exactly the same. > > Therefore, the underlying allocator, provided by libc or some other source, has no opportunity to internally `mremap()` the data when the alignment is changed, since it has no way of knowing that the allocation is the same.
…albertlarsan68 Increase vscode settings.json `git.detectSubmodulesLimit` The default vscode git integration throws a warning on the rust repository because it has more than the default limit of 10 submodules. This adds an increase to 20 to the settings.json that x.py offers to install on setup. <img width="461" alt="Screen Shot 2024-01-19 at 11 47 47 PM" src="https://github.com/rust-lang/rust/assets/230691/440dfa4e-32e3-41f7-b8c6-5a07ade7aa14"> Also reported at https://stackoverflow.com/questions/60917209/disable-vs-code-warning-submodules-which-wont-be-opened-automatically
Spelling fix "It's" expands to "it is". "It is use..." doesn't make sense. "Its" is the possessive form, and the intended form here.
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@bors r+ p=5 rollup=never |
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☀️ Test successful - checks-actions |
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📌 Perf builds for each rolled up PR:
previous master: 1828461982 In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
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Finished benchmarking commit (038d115): comparison URL. Overall result: ❌✅ regressions and improvements - ACTION NEEDEDNext Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression Instruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Binary sizeResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Bootstrap: 665.294s -> 665.187s (-0.02%) |
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A tiny regression on a single benchmark, I don't think that it's worth it to delve deeper. @rustbot label: +perf-regression-triaged |
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Successful merges:
callee_ids are body owners #120000 (Ensurecallee_ids are body owners)boxexpressions from parser #120063 (Remove special handling ofboxexpressions from parser)git.detectSubmodulesLimit#120138 (Increase vscode settings.jsongit.detectSubmodulesLimit)r? @ghost
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