minor: Rustc pull update #20761
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minor: Rustc pull update #20761
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Improve the pretty print of UnstableFeature clause As per rust-lang/rust#145095 (comment), we could make the diagnostic for unsatisfiable ``UnstableFeature`` clause better. r? `@BoxyUwU`
Update cargo submodule 17 commits in 966f94733bbc94ca51ff9f1e4c49ad250ebbdc50..f2932725b045d361ff5f18ba02b1409dd1f44e71 2025-09-16 17:24:45 +0000 to 2025-09-24 11:31:26 +0000 - fix: use `host-tuple` for host target subsitution (rust-lang/cargo#16003) - test(build-std): move away from panic_immediate_abort (rust-lang/cargo#16006) - fix: Sparse URLs in `TomlLockfileSourceId` (rust-lang/cargo#15990) - refactor(gctx): extract toml dotted keys validation (rust-lang/cargo#15998) - feat: Add lint for global use of `hint-mostly-unused` (rust-lang/cargo#15995) - Make GlobalContext Sync (rust-lang/cargo#15967) - chore(deps): update cargo-semver-checks to v0.44.0 (rust-lang/cargo#15993) - fix(frontatter): Only allow horizontal whitespace after fences (rust-lang/cargo#15975) - docs: Add Lockfile schemas docs (rust-lang/cargo#15989) - Add parallel frontend to the build performance guide (rust-lang/cargo#15970) - chore(deps): update msrv (3 versions) to v1.88 (rust-lang/cargo#15988) - chore(deps): update msrv (1 version) to v1.90 (rust-lang/cargo#15984) - feat(cargo-util-schemas): Move lockfile schemas (rust-lang/cargo#15980) - Clarify multiple version requirement behavior (rust-lang/cargo#15979) - Adds ghostty as supported terminal for term integration (OSC 9;4) (rust-lang/cargo#15977) - docs(team): Fixed broken office hours link (rust-lang/cargo#15976) - docs: Clarify git sources vs git registries in source replacement documentation (rust-lang/cargo#15974) r? ghost
Rollup of 7 pull requests Successful merges: - rust-lang/rust#146556 (Fix duration_since panic on unix when std is built with integer overflow checks) - rust-lang/rust#146679 (Clarify Display for error should not include source) - rust-lang/rust#146753 (Improve the pretty print of UnstableFeature clause) - rust-lang/rust#146894 (Improve derive suggestion of const param) - rust-lang/rust#146950 (core: simplify `CStr::default()`) - rust-lang/rust#146958 (Fix infinite recursion in Path::eq with String) - rust-lang/rust#146971 (fix ICE in writeback due to bound regions) r? `@ghost` `@rustbot` modify labels: rollup
Avoid invalidating CFG caches from MirPatch::apply. Small effort to reduce invalidating CFG caches.
I.e. do not mark them as used, or non-speculative loaded, or similar. Previously they were sometimes finalized during early resolution, causing issues like rust-lang/rust#144793 (comment).
remove incorrect fast path Using `tcx.is_copy_modulo_regions` drops information from the current `typing_env`. Writing a regression test for this is really hard. We need to prove `Copy` of something that doesn't directly reference a coroutine or an opaque, but does so indirectly. cc rust-lang/rust#146813.
Extended temporary argument to format_args!() in all cases Fixes rust-lang/rust#145880 by removing the special case.
…, r=Kobzol Make cargo test work for bootstrap self test This PR enables the bootstrap self-test to run via cargo test. I have removed the detect_src_and_out test for now, but it will be reintroduced in a follow-up PR where all bootstrap tests will be migrated to use testCtx. r? `@Kobzol` try-job: aarch64-apple
resolve: Do not finalize shadowed bindings I.e. do not mark them as used, or non-speculatively loaded, or similar. Previously they were sometimes finalized during early resolution, causing issues like rust-lang/rust#144793 (comment).
Demote both armebv7r-none-* targets. OK, slightly more controversial than rust-lang/rust#146520 and rust-lang/rust#146522 - I'd like to drop the bare-metal **big-endian** Armv7-R targets down to Tier 3. The reason is simple - we cannot test them in https://github.com/rust-embedded/cortex-ar/. This because QEMU support for Big Endian Armv7-R is broken. I tried quite hard, but all the strings I printed with semihosting came out byte swapped (or "etybawa depp") because of how QEMU kludges the access to memory in big-endian mode. The target also has only a single maintainer. Although, if ````@chrisnc```` wants to put up a case for keeping it at Tier 2 though, I'm happy to hear it! This PR wil be rebased once rust-lang/rust#146419 completes the queue.
…chenkov port `#[debugger_visualizer]` to the new attribute system
…henkov
Stop linking rs{begin,end} objects on x86_64-*-windows-gnu
Until now, x86_64-pc-windows-gnu linked `rsbegin.o` and `rsend.o` just like i686-pc-windows-gnu, even though they were no-ops for it. This was likely done for the simplicity back when it was introduced.
Today the things are different and these startup/end objects harm other features, like `build-std`. Given the demotion of i686-pc-windows-gnu from tier 1, there is no point in hurting x86_64-pc-windows-gnu, which remains a tier 1.
The files are still shipped in case downstream crates expect them, as in case of the unmaintained `xargo`.
Fixes rust-lang/rust#146739
Use standard attribute logic for allocator shim Use llfn_attrs_from_instance() to generate the attributes for the allocator shim. This ensures that we generate all the usual attributes (and don't get to find out one-by-one that a certain attribute is important for a certain target). Additionally this will enable emitting the allocator-specific attributes (not included here). This change is quite awkward because the allocator shim uses SimpleCx, while llfn_attrs_from_instance uses CodegenCx. I've switched it to use SimpleCx plus tcx/sess arguments where necessary. If there's a simpler way to do this, I'd love to know about it...
…trochenkov Reduce some uses of `LegacyBang` - **Switch `dummy_bang` from `LegacyBang` to `Bang`** - **mbe: Switch dummy extension used for errors from `LegacyBang` to `Bang`**
fix doc comments to be more standard
…binarycat Add new `tyalias` intra-doc link disambiguator Fixes rust-lang/rust#146855. Alternative to rust-lang/rust#146866. This adds support for a new disambiguator: `tyalias`. I think it's common enough to have type aliases nowaday, so no reason to not be able to have a disambiguator for them. cc ``@fmease`` r? lolbinarycat
mbe: Simplify check_redundant_vis_repetition Eliminate a use of `map_or` in favor of a match. Inline some variable definitions that don't add clarity, and that prevent short-circuiting.
Ignore more failing ui tests for GCC backend Needed for rust-lang/rust#146414. r? ``@Kobzol``
Rollup of 10 pull requests Successful merges: - rust-lang/rust#145113 (resolve: Do not finalize shadowed bindings) - rust-lang/rust#146523 (Demote both armebv7r-none-* targets.) - rust-lang/rust#146704 (port `#[debugger_visualizer]` to the new attribute system) - rust-lang/rust#146758 (Stop linking rs{begin,end} objects on x86_64-*-windows-gnu) - rust-lang/rust#146778 (Use standard attribute logic for allocator shim) - rust-lang/rust#146849 (Reduce some uses of `LegacyBang`) - rust-lang/rust#147016 (fix doc comments to be more standard) - rust-lang/rust#147027 (Add new `tyalias` intra-doc link disambiguator) - rust-lang/rust#147031 (mbe: Simplify check_redundant_vis_repetition) - rust-lang/rust#147058 (Ignore more failing ui tests for GCC backend) Failed merges: - rust-lang/rust#147046 (Rename `rust.use-lld` to `rust.bootstrap-override-lld`) r? `@ghost` `@rustbot` modify labels: rollup
JumpThreading: Avoid computing dominators to identify loop headers. JumpThreading tries to avoid threading through loop headers to avoid creating irreducible CFGs. However, computing dominators is expensive, and accounts up to 20 % of the runtime of the JumpThreading pass for some cases like serde. This PR proposes to approximate according to the post-order traversal order. We define a "maybe" loop header as a block which is visited after its predecessor in post-order.
Make it possible to `x install` Cranelift and LLVM bitcode linker It was not possible to install these before, as they were not in the install step description list. Fixes: rust-lang/rust#140331 r? `@jieyouxu`
Remove most `#[track_caller]` from allocating Vec methods They cause significant binary size overhead while contributing little value. closes rust-lang/rust#146963, see that issue for more details.
…laumeGomez rustdoc-search: use the same ID for entry and path to same item This decreases the size of the compiler-doc from 57MiB to 56MiB. r? `@GuillaumeGomez`
rustdoc-search: stringdex update with more packing
Before:
18M build/x86_64-unknown-linux-gnu/doc/search.index/
57M build/x86_64-unknown-linux-gnu/compiler-doc/search.index/
After:
16M build/x86_64-unknown-linux-gnu/doc/search.index/
49M build/x86_64-unknown-linux-gnu/compiler-doc/search.index/
CC rust-lang/rust#146063
This updates the rust-version file to f957826bff7a68b267ce75b1ea56352aed0cca0a.
Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: f957826bff7a68b267ce75b1ea56352aed0cca0a Filtered ref: 7291893 Upstream diff: rust-lang/rust@caccb4d...f957826 This merge was created using https://github.com/rust-lang/josh-sync.
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