Rustup #3403
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Rustup #3403
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Let codegen decide when to `mem::swap` with immediates Making `libcore` decide this is silly; the backend has so much better information about when it's a good idea. Thus this PR introduces a new `typed_swap` intrinsic with a fallback body, and replaces that fallback implementation when swapping immediates or scalar pairs. r? oli-obk Replaces #111744, and means we'll never need more libs PRs like #111803 or #107140
Stabilize slice_split_at_unchecked Greetings! I took the opportunity, and I tried to stabilize the `slice_split_at_unchecked` feature. I followed the guidelines, and I hope everything was done correctly 🤞 . Closes #76014
…lacrum Cancel `cargo update` job if there's no updates Previously there were always updates so we didn't hit this. Since #122489, this job runs on a more frequent schedule and causes errors if there have been no changes in that timespan. This led to a weird error on rust-lang/rust#122646 (comment) - because of this I've replaced the `exit 1`s here with `gh run cancel` so we don't have false 'failed' jobs in the logs.
Rename `hir::Local` into `hir::LetStmt` Follow-up of #122776. As discussed on [zulip](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Improve.20naming.20of.20.60ExprKind.3A.3ALet.60.3F). I made this change into a separate PR because I'm less sure about this change as is. For example, we have `visit_local` and `LocalSource` items. Is it fine to keep these two as is (I supposed it is but I prefer to ask) or not? Having `Node::Local(LetStmt)` makes things more explicit but is it going too far? r? ```@oli-obk```
…er-errors Delay a bug if no RPITITs were found Fixes #122655. See the issue for context. r? compiler-errors or compiler
docs(sync): normalize dot in fn summaries All other functions in e.g. [`Mutex`](https://doc.rust-lang.org/std/sync/struct.Mutex.html) have a dot at the end of their first doc line, except for the newly stabilized [`Mutex::clear_poison`](https://doc.rust-lang.org/std/sync/struct.Mutex.html#method.clear_poison) (and its friend [`RwLock::clear_poison`](https://doc.rust-lang.org/std/sync/struct.RwLock.html#method.clear_poison)). This PR remedies that by adding a normalizing dot.
…ulacrum Enable more mir-opt tests in debug builds This is rust-lang/rust#121531 but for the mir-opt test suite.
-Zprint-type-sizes: print the types of awaitees and unnamed coroutine locals. This should assist comprehending the size of coroutines. In particular, whenever a future is suspended while awaiting another future, the latter is given the special name `__awaitee`, and now the type of the awaited future will be printed, allowing identifying caller/callee — er, I mean, poller/pollee — relationships. It would be possible to include the type name in more cases, but I thought that that might be overly verbose (`print-type-sizes` is already a lot of text) and ordinary named fields or variables are easier for readers to discover the types of. This change will also synergize with my other PR #122923 which changes type printing to print the path of the `async fn` instead of the span. Implementation note: I'm not sure if `Symbol::intern` is appropriate for this application, but it was the obvious way to not have to remove the `Copy` implementation from `FieldInfo`, or add a `'tcx` lifetime, while avoiding keeping a lot of possibly redundant strings in memory. I don't know what the proper tradeoff to make here is (though presumably it is not too important for a `-Z` debugging option).
add panic location to 'panicked while processing panic' Fixes rust-lang/rust#97181 r? `@Amanieu`
Rollup of 11 pull requests Successful merges: - #120577 (Stabilize slice_split_at_unchecked) - #122698 (Cancel `cargo update` job if there's no updates) - #122780 (Rename `hir::Local` into `hir::LetStmt`) - #122915 (Delay a bug if no RPITITs were found) - #122916 (docs(sync): normalize dot in fn summaries) - #122921 (Enable more mir-opt tests in debug builds) - #122922 (-Zprint-type-sizes: print the types of awaitees and unnamed coroutine locals.) - #122927 (Change an ICE regression test to use the original reproducer) - #122930 (add panic location to 'panicked while processing panic') - #122931 (Fix some typos in the pin.rs) - #122933 (tag_for_variant follow-ups) r? `@ghost` `@rustbot` modify labels: rollup
Miri subtree update r? `@ghost`
refactor check_{lang,library}_ub: use a single intrinsic
This enacts the plan I laid out [here](rust-lang/rust#122282 (comment)): use a single intrinsic, called `ub_checks` (in aniticpation of rust-lang/compiler-team#725), that just exposes the value of `debug_assertions` (consistently implemented in both codegen and the interpreter). Put the language vs library UB logic into the library.
This makes it easier to do something like rust-lang/rust#122282 in the future: that just slightly alters the semantics of `ub_checks` (making it more approximating when crates built with different flags are mixed), but it no longer affects whether these checks can happen in Miri or compile-time.
The first commit just moves things around; I don't think these macros and functions belong into `intrinsics.rs` as they are not intrinsics.
r? `@saethlin`
…orkingjubilee Portable SIMD subtree update Syncs nightly to the latest changes from rust-lang/portable-simd r? `@calebzulawski`
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@bors r+ |
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☀️ Test successful - checks-actions |
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☀️ Test successful - checks-actions |
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