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2025-09-08port `#[pattern_complexity_limit]` to the new attribute parsing infrastructureJana Dönszelmann-1/+35
2025-09-08port `#[type_length_limit]` to the new attribute parsing infrastructureJana Dönszelmann-1/+36
2025-09-08port `#[move_size_limit]` to the new attribute parsing infrastructureJana Dönszelmann-1/+33
2025-09-08port `#[recursion_limit]` to the new attribute parsing infrastructureJana Dönszelmann-4/+84
2025-09-08Auto merge of #146333 - matthiaskrgr:rollup-ib80jyw, r=matthiaskrgrbors-231/+426
Rollup of 7 pull requests Successful merges: - rust-lang/rust#146111 (Migrate more things in the new solver to specific `DefId`s) - rust-lang/rust#146298 (GVN: Ensure indirect is first projection in try_as_place.) - rust-lang/rust#146299 (docs(std): add error docs for path canonicalize) - rust-lang/rust#146310 (Allow static regions in `type_name`.) - rust-lang/rust#146313 (Some `rustc_middle` cleanups) - rust-lang/rust#146319 (Fix typo in default.rs) - rust-lang/rust#146320 (rustc-dev-guide subtree update) r? `@ghost` `@rustbot` modify labels: rollup
2025-09-08Rollup merge of #146320 - tshepang:rdg-sync, r=tshepangMatthias Krüger-64/+186
rustc-dev-guide subtree update Subtree update of `rustc-dev-guide` to https://github.com/rust-lang/rustc-dev-guide/commit/d03ffd422704a69078a26b57fecff058eb4161dd. Created using https://github.com/rust-lang/josh-sync. r? `@ghost`
2025-09-08Rollup merge of #146319 - justinyaodu:patch-1, r=jhprattMatthias Krüger-1/+1
Fix typo in default.rs This sentence currently reads: > Rust implements `Default` for various primitives types. I think it should just be "primitive types".
2025-09-08Rollup merge of #146313 - nnethercote:rustc_middle-ty-cleanups-2, r=lcnrMatthias Krüger-84/+54
Some `rustc_middle` cleanups Minor improvements I found while looking through this code. r? `@BoxyUwU`
2025-09-08Rollup merge of #146310 - nnethercote:fix-146249, r=lcnrMatthias Krüger-2/+18
Allow static regions in `type_name`. Fixes rust-lang/rust#146249. r? `@lcnr`
2025-09-08Rollup merge of #146299 - smirzaei:doc/improve-path-canonicalize-docs, r=jhprattMatthias Krüger-0/+8
docs(std): add error docs for path canonicalize This PR adds the missing error documentation for both [Path.canonicalize](https://doc.rust-lang.org/std/path/struct.Path.html#method.canonicalize) and [PathBuf.canonicalize](https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.canonicalize) methods. Since both methods are wappers around [fs::canonicalize](https://doc.rust-lang.org/std/fs/fn.canonicalize.html), the error doc is copied directly from that function. This makes it faster to find what errors might arise when calling `path.canonicalize` or `path_buf.canonicalize` in the editor itself without needing to drill down to the `fs::canonicalzie` docs.
2025-09-08Rollup merge of #146298 - cjgillot:gvn-derefer, r=nnethercoteMatthias Krüger-0/+5
GVN: Ensure indirect is first projection in try_as_place. I haven't found any report for this bug on existing code, but managed to trigger it with rust-lang/rust#143333
2025-09-08Rollup merge of #146111 - ChayimFriedman2:more-ns-specific-defid, r=lcnrMatthias Krüger-80/+154
Migrate more things in the new solver to specific `DefId`s Continuation of https://github.com/rust-lang/rust/pull/145377. I migrated the rest of the types, except aliases. Aliases are problematic because opaques and associated types share the same type in the new solver. `@jackh726,` `@lcnr,` `@ShoyuVanilla` I'd like to hear ideas here. Anyway, even if we do nothing with them we already got a substantial improvement. r? types
2025-09-08Auto merge of #146165 - folkertdev:c-variadic-errors-take-2, r=lcnrbors-94/+140
improve c-variadic error reporting tracking issue: https://github.com/rust-lang/rust/issues/44930 The parts of https://github.com/rust-lang/rust/pull/143546 that don't require any particular knowledge about c-variadic functions. This prepares the way for rejecting c-variadic functions that are also coroutines, safe functions, or associated functions.
2025-09-08Allow static regions in `type_name`.Nicholas Nethercote-2/+18
Fixes #146249.
2025-09-08Auto merge of #146173 - Kmeakin:km/unicode-data/no-ascii, r=jhprattbors-247/+320
Don't include ASCII characters in Unicode tables Split off from https://github.com/rust-lang/rust/pull/145219
2025-09-08Merge pull request #2573 from rust-lang/tshepang/make-more-clearTshepang Mbambo-2/+4
clarify typo pr guidance
2025-09-08Merge pull request #2582 from rust-lang/rustc-pullTshepang Mbambo-17470/+34168
Rustc pull update
2025-09-07Fix typo in default.rsJustin Yao Du-1/+1
2025-09-08Merge ref '2f3f27bf79ec' from rust-lang/rustThe rustc-josh-sync Cronjob Bot-17469/+34167
Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: 2f3f27bf79ec147fec9d2e7980605307a74067f4 Filtered ref: 82a5eafbafdb98eae68193600732388ae4135756 Upstream diff: https://github.com/rust-lang/rust/compare/a1dbb443527bd126452875eb5d5860c1d001d761...2f3f27bf79ec147fec9d2e7980605307a74067f4 This merge was created using https://github.com/rust-lang/josh-sync.
2025-09-08Prepare for merging from rust-lang/rustThe rustc-josh-sync Cronjob Bot-1/+1
This updates the rust-version file to 2f3f27bf79ec147fec9d2e7980605307a74067f4.
2025-09-08Auto merge of #145910 - saethlin:ignore-intrinsic-calls, r=cjgillotbors-1/+25
Ignore intrinsic calls in cross-crate-inlining cost model I noticed in a side project that a function which just compares to `[u64; 2]` for equality is not cross-crate-inlinable. That was surprising to me because I didn't think that code contained a function call, but of course our array comparisons are lowered to an intrinsic. Intrinsic calls don't make a function no longer a leaf, so it makes sense to add this as an exception to the "only leaves" cross-crate-inline heuristic. This is the useful compare link: https://perf.rust-lang.org/compare.html?start=7cb1a81145a739c4fd858abe3c624ce8e6e5f9cd&end=c3f0a64dbf9fba4722dacf8e39d2fe00069c995e&stat=instructions%3Au because it disables CGU merging in both commits, so effects that cause changes in the sysroot to perturb partitioning downstream are excluded. Perturbations to what is and isn't cross-crate-inlinable in the sysroot has chaotic effects on what items are in which CGUs after merging. It looks like before this PR by sheer luck some of the CGUs dirtied by the patch in eza incr-unchanged happened to be merged together, and with this PR they are not. The perf runs on this PR point to a nice runtime performance improvement.
2025-09-07Auto merge of #145541 - cjgillot:dest-prop-live-range, r=Amanieubors-615/+401
Reimplement DestinationPropagation according to live ranges. This PR reimplements DestinationPropagation as a problem of merging live-ranges of locals. We merge locals that have disjoint live-ranges. This allows merging several locals in the same round by updating live range information. Live ranges are mainly computed using the `MaybeLiveLocals` analysis. The subtlety is that we split each statement and terminator in 2 positions. The first position is the regular statement. The second position is a shadow, which is always more live. It encodes partial writes and dead writes as a local being live for half a statement. This half statement ensures that writes conflict with another local's writes and regular liveness. r? `@Amanieu`
2025-09-08Move `describe_as_module` from `rustc_middle::print` to `rustc:middle::query`.Nicholas Nethercote-12/+11
That way it doesn't need to be exported.
2025-09-08Move `rustc_middle::MaxUniverse` to `rustc_infer`.Nicholas Nethercote-42/+41
Because `rust_infer` is the only crate that uses it.
2025-09-08Make some matches non-exhaustive.Nicholas Nethercote-30/+2
Exhaustive match isn't necessary for these trivial cases, and some similar nearby methods are non-exhaustive.
2025-09-07Auto merge of #146304 - matthiaskrgr:rollup-69hs07h, r=matthiaskrgrbors-87/+166
Rollup of 4 pull requests Successful merges: - rust-lang/rust#146170 (fix: offline rustdoc html missing favicon) - rust-lang/rust#146209 (Misc LTO cleanups) - rust-lang/rust#146269 (feat(std): emulate flock for solaris via fcntl) - rust-lang/rust#146297 (Introduce PlaceContext::may_observe_address.) r? `@ghost` `@rustbot` modify labels: rollup
2025-09-07Rollup merge of #146297 - cjgillot:may-observe-address, r=saethlinMatthias Krüger-8/+23
Introduce PlaceContext::may_observe_address. A small utility method to avoid open-coding the logic in several MIR opts.
2025-09-07Rollup merge of #146269 - weihanglo:solaris-flock, r=Mark-SimulacrumMatthias Krüger-0/+70
feat(std): emulate flock for solaris via fcntl Upstream Solaris flock emulation to libstd from cargo. This is borrowed from https://github.com/rust-lang/cargo/blob/3b379fcc541b39321a7758552d37e5e0cc4277b9/src/cargo/util/flock.rs#L502-L536 which was implemented by an Oracle employee. The code has been in cargo since 2022-12. Python's `fcntl.flock` emulates like this as well: https://github.com/python/cpython/blob/c919d02edecfe9d75fe374756fb8aa1db8d95f55/Modules/fcntlmodule.c#L337-L400 We did the same thing in https://github.com/rust-lang/rust/blob/0d0f4eac8b98133e5da6d3604d86a8f3b5a67844/compiler/rustc_data_structures/src/flock/unix.rs#L13-L39 However, should we just always falls back to fcntl for all Unix, instead of "unsupported"? try-job: `*-solaris`
2025-09-07Rollup merge of #146209 - bjorn3:lto_refactors5, r=dianqkMatthias Krüger-77/+44
Misc LTO cleanups Follow up to https://github.com/rust-lang/rust/pull/145955. * Remove want_summary argument from `prepare_thin`. Since https://github.com/rust-lang/rust/pull/133250 ThinLTO summary writing is instead done by `llvm_optimize`. * Two minor cleanups
2025-09-07Rollup merge of #146170 - kumarUjjawal:master, r=Mark-SimulacrumMatthias Krüger-2/+29
fix: offline rustdoc html missing favicon As discussed in the rust-lang/rust#146149 the doc was missing the favicon icon when build locally and viewed on a browser. I changed the relative path and also now we explicitly copy both SVG and PNG. <img width="1132" height="425" alt="Screenshot 2025-09-03 at 11 57 46 PM" src="https://github.com/user-attachments/assets/062cbb08-04ec-4d88-a43a-710fb6190f82" />
2025-09-07Auto merge of #146148 - Flakebi:global-addrspace-test, r=Mark-Simulacrumbors-2/+21
Add amdgpu test for addrspacecasting global vars and the gpu-kernel calling convention Add two tests that can now be added, as the amdgpu is merged. - Global variables are casted to the default address space since rust-lang/rust#135026 - gpu-kernel calling convention, translatos to amdgpu_kernel rust-lang/rust#135047 Tracking issue: rust-lang/rust#135024
2025-09-07Use rustc_data_structures::union_find.Camille Gillot-28/+14
2025-09-07Simplify candidate collection.Camille Gillot-55/+43
2025-09-07Unify a source with all possible destinations.Camille Gillot-93/+75
2025-09-07Do not use prepend to avoid quadratic behaviour.Camille Gillot-58/+37
2025-09-07Simplify VisitPlacesWith.Camille Gillot-18/+7
2025-09-07Use regular MaybeLiveLocals.Camille Gillot-136/+58
2025-09-07Reimplement DestinationPropagation according to live ranges.Camille GILLOT-572/+449
2025-09-07Introduce fast insertion at extremities to IntervalSet.Camille GILLOT-27/+90
2025-09-07docs(std): add error docs for path canonicalizeSoroush Mirzaei-0/+8
2025-09-07Auto merge of #146289 - cjgillot:gvn-aggregate, r=dianqkbors-30/+90
GVN: Allow reusing aggregates if LHS is not a simple local. This resolves a FIXME in the code. I don't see a reason not to allow this.
2025-09-07Ensure indirect is first projection in try_as_place.Camille GILLOT-0/+5
2025-09-07Introduce PlaceContext::may_observe_address.Camille GILLOT-8/+23
2025-09-07optimization: Don't include ASCII characters in Unicode tablesKarl Meakin-247/+320
The ASCII subset of Unicode is fixed and will never change, so we don't need to generate tables for it with every new Unicode version. This saves a few bytes of static data and speeds up `char::is_control` and `char::is_grapheme_extended` on ASCII inputs. Since the table lookup functions exported from the `unicode` module will give nonsensical errors on ASCII input (and in fact will panic in debug mode), I had to add some private wrapper methods to `char` which check for ASCII-ness first.
2025-09-07Auto merge of #146216 - ↵bors-328/+539
LorrensP-2158466:miri-float-nondet-foreign-items-take2, r=RalfJung Miri: non-deterministic floating point operations in foreign_items Take 2 of rust-lang/rust#143906. The last 2 commits are what changed compared to the original pr. Verified the tests using (fish shell): ```fish env MIRIFLAGS="-Zmiri-max-extra-rounding-error -Zmiri-many-seeds" ./x miri --no-fail-fast std core coretests -- f32 f64 ``` r? `@RalfJung`
2025-09-07Auto merge of #146292 - matthiaskrgr:rollup-bkjs887, r=matthiaskrgrbors-153/+38
Rollup of 2 pull requests Successful merges: - rust-lang/rust#146254 (Use `Itertools::all_equal_value()` where applicable) - rust-lang/rust#146290 (Revert "Add LSX accelerated implementation for source file analysis") r? `@ghost` `@rustbot` modify labels: rollup
2025-09-07Rollup merge of #146290 - heiher:r-src-analysis-lsx, r=lqdMatthias Krüger-107/+3
Revert "Add LSX accelerated implementation for source file analysis" This reverts commit 5b43244ac59119870c9e0f6b642340ab88355b23 to fix native build failures on LoongArch. Link: https://github.com/rust-lang/rust/pull/145963#issuecomment-3263195096 Link: https://github.com/rust-lang/rust/pull/145963#issuecomment-3263420700
2025-09-07Rollup merge of #146254 - yotamofek:pr/itertools-all-equal-value, r=cjgillotMatthias Krüger-46/+35
Use `Itertools::all_equal_value()` where applicable Just a small cleanup. We already have `itertools` as a dep in these crates, so might as well use another of its features. Makes the code simpler IMHO :)
2025-09-07Auto merge of #146271 - niacdoial:improperctypes-refactor1, r=tgross35bors-1002/+1143
lint ImproperCTypes: refactor linting architecture (part 1) This is the first PR in an effort to split rust-lang/rust#134697 into individually-mergeable parts. This one focuses on properly packaging the lint and its tests, as well as properly separate the "linting" and "type-checking" code. There is exactly one user-visible change: the safety of `Option<Box<FFISafePointee>>` is now the same in `extern` blocks and function definitions: it is safe. r? `@tgross35` because you are already looking at the original
2025-09-07feat(std): emulate flock for solaris via fcntlWeihang Lo-0/+70
Upstream Solaris flock emulation to libstd from cargo. This is borrowed from https://github.com/rust-lang/cargo/blob/3b379fcc541b39321a7758552d37e5e0cc4277b9/src/cargo/util/flock.rs#L502-L536 which was implemented by an Oracle employee. The code has been in cargo since 2022-12. Python's `fcntl.flock` emulates like this as well: https://github.com/python/cpython/blob/c919d02edecfe9d75fe374756fb8aa1db8d95f55/Modules/fcntlmodule.c#L337-L400 We did the same thing in https://github.com/rust-lang/rust/blob/0d0f4eac8b98133e5da6d3604d86a8f3b5a67844/compiler/rustc_data_structures/src/flock/unix.rs#L13-L39
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