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Pull recent changes from https://github.com/rust-lang/rust via Josh.
Upstream ref: caccb4d0368bd918ef6668af8e13834d07040417
Filtered ref: 0f345ed05d559bbfb754f1403b16199366cda2e0
Upstream diff: https://github.com/rust-lang/rust/compare/21a19c297d4f5a03501d92ca251bd7a17073c08a...caccb4d0368bd918ef6668af8e13834d07040417
This merge was created using https://github.com/rust-lang/josh-sync.
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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...
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This updates the rust-version file to caccb4d0368bd918ef6668af8e13834d07040417.
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Rollup of 8 pull requests
Successful merges:
- rust-lang/rust#146711 (fix 2 borrowck issues)
- rust-lang/rust#146857 (revert change removing `has_infer` check. Commit conservatively patch…)
- rust-lang/rust#146897 (fix ICE in rustdoc::invalid_html_tags)
- rust-lang/rust#146915 (Make missed precondition-free float intrinsics safe)
- rust-lang/rust#146932 (Switch next-solver related rustc dependencies of r-a to crates.io ones)
- rust-lang/rust#146959 (temporary-lifetime-extension-tuple-ctor.rs: make usable on all editions)
- rust-lang/rust#146964 (library: std: sys: pal: uefi: Add some comments)
- rust-lang/rust#146969 (const-eval: better wording for errors involving maybe-null pointers)
r? `@ghost`
`@rustbot` modify labels: rollup
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const-eval: better wording for errors involving maybe-null pointers
Fixes https://github.com/rust-lang/rust/issues/146748
r? ``@oli-obk``
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library: std: sys: pal: uefi: Add some comments
I seemed to have forgotten that since I am using GET_PROTOCOL attribute for the std usecases, I did not need to close the protocols explicitly. So adding these comments as a note to future self not to waste time on the same thing again.
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temporary-lifetime-extension-tuple-ctor.rs: make usable on all editions
Also
- add Reference id
- fix typo
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Switch next-solver related rustc dependencies of r-a to crates.io ones
r? ``@ghost``
cc ``@lnicola`` ``@lcnr``
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Make missed precondition-free float intrinsics safe
So, in my defence, these were both separated out from the other intrinsics in the file *and* had a different safety comment in the stable versions, so, I didn't notice them before. But, in my offence, the entire reason I did the previous PR was because I was using them for SIMD intrinsic fallbacks, and `fabs` is needed for those too, so, I don't really have an excuse.
Extra follow-up to rust-lang/rust#146683.
r? ```@RalfJung``` who reviewed the previous one
These don't appear to be used anywhere outside of the standard locations, at least.
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r=GuillaumeGomez
fix ICE in rustdoc::invalid_html_tags
fixes https://github.com/rust-lang/rust/issues/146890
r? ```@GuillaumeGomez```
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revert change removing `has_infer` check. Commit conservatively patch…
…es for now, but more development proceeding.
Hotfix for rust-lang/rust#146852.
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fix 2 borrowck issues
fixes https://github.com/rust-lang/rust/issues/146467 cc ``@amandasystems``
our understanding here is as follows: region constraints from computing implied bounds gets `ConstraintCategory::Internal`. If there's a higher-ranked subtyping errors while computing implied bounds we then ended up with only `ConstraintCategory::Internal` and `ConstraintCategory::OutlivesUnnameablePlaceholder(_)` constraints.
The path was something like
- `'placeholderU2: 'placeholderU1` (`Internal`)
- `'placeholderU1: 'static` (`OutlivesUnnameablePlaceholder('placeholderU2)`)
It's generally somewhat subtle here as ideally relating placeholders doesn't introduce `'static` constraints. Relating the placeholders themselves will always error regardless, cc https://github.com/rust-lang/rust/pull/142623.
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separately fixes https://github.com/rust-lang/rust/pull/145925#issuecomment-3303733357 by updating the location for deferred closure requirements inside of promoteds. I am not updating their category as doing so is 1) effort and 2) imo actually undesirable :thinking: see the comments in `TypeChecker::check_promoted` cc ``@lqd``
r? lqd
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fix: Implement fallback properly
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fallback.rs was ported straight from rustc (minus the lint parts).
This fixes the `!` regressions.
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Expose iterators over an inference result's types
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r=Urgau,davidtwco
Extends AArch64 branch protection support to include GCS
Extends existing support for AArch64 branch protection to include support for [Guarded Control Stacks](https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/arm-a-profile-architecture-2022#guarded-control-stack-gcs:~:text=Extraction%20or%20tracking.-,Guarded%20Control%20Stack%20(GCS),-With%20the%202022).
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outside the range of a scalar
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Co-authored-by: Rémy Rakic <remy.rakic+github@gmail.com>
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Rollup of 6 pull requests
Successful merges:
- rust-lang/rust#146818 (constify {float}::total_cmp())
- rust-lang/rust#146896 (rustc-dev-guide subtree update)
- rust-lang/rust#146898 (Update books)
- rust-lang/rust#146899 (Fix a crash/mislex when more than one frontmatter closing possibility is considered)
- rust-lang/rust#146904 (rust-lang/rust#140368 Mutex/RwLock/ReentrantLock::data_ptr to be const fn)
- rust-lang/rust#146907 (add regression test for issue 146537)
r? `@ghost`
`@rustbot` modify labels: rollup
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I seemed to have forgotten that since I am using GET_PROTOCOL attribute
for the std usecases, I did not need to close the protocols explicitly.
So adding these comments as a note to future self not to waste time on
the same thing again.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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Also
- add Reference id
- fix typo
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Convert more things from chalk to next solver
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Update LLVM to 21.1.2
Fixes rust-lang/rust#146065.
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add regression test for issue 146537
Adds a test based on the reduction in https://github.com/rust-lang/rust/issues/146537#issuecomment-3289438439.
This was already fixed in rust-lang/rust#142882 before the issue was even reported, but no test for it was added yet.
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#140368 Mutex/RwLock/ReentrantLock::data_ptr to be const fn
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Fix a crash/mislex when more than one frontmatter closing possibility is considered
When the less fortunate recovery path for frontmatters are taken, if the lexer considers more than one possible frontmatter closing possibility, the current index is entirely mis-tracked and can result in bump_bytes landing in the middle of a multichar unicode character.
This fixes it by tracking the actual base index and updating it as it considers additional closing possibilities.
fixes rust-lang/rust#146847
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Update books
## rust-lang/book
1 commits in 3e9dc46aa563ca0c53ec826c41b05f10c5915925..33f1af40cc44dde7e3e892f7a508e6f427d2cbc6
2025-09-15 16:10:14 UTC to 2025-09-15 16:10:14 UTC
- Release trpl 0.3 (rust-lang/book#4505)
## rust-lang/reference
9 commits in b3ce60628c6f55ab8ff3dba9f3d20203df1c0dee..cc7247d8dfaef4c39000bb12c55c32ba5b5ba976
2025-09-20 10:26:26 UTC to 2025-09-08 18:07:29 UTC
- Document temporary scoping for destructuring assignments (rust-lang/reference#1992)
- Specify lifetime extension of `pin!` and `format_args!` arguments (rust-lang/reference#1980)
- update for more ABIs supporting c-variadics (rust-lang/reference#1936)
- Fix incorrect span tag (rust-lang/reference#1995)
- Remove strike attribute (rust-lang/reference#1997)
- Specify the target limits for target-specific ABIs (rust-lang/reference#2000)
- Remove tuple index carve out (rust-lang/reference#1966)
- Enable folding of chapter listing in navigation sidebar (rust-lang/reference#1988)
- Add support to grammar for single line comments (rust-lang/reference#1993)
## rust-lang/rust-by-example
1 commits in dd26bc8e726dc2e73534c8972d4dccd1bed7495f..2c9b490d70e535cf166bf17feba59e594579843f
2025-09-18 22:28:52 UTC to 2025-09-18 22:28:52 UTC
- Update unit testing output for additional test (rust-lang/rust-by-example#1958)
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rustc-dev-guide subtree update
Subtree update of `rustc-dev-guide` to https://github.com/rust-lang/rustc-dev-guide/commit/d76c84c23cb8558efe133951d3b4e9d960750192.
Created using https://github.com/rust-lang/josh-sync.
r? `````@ghost`````
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constify {float}::total_cmp()
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miri subtree update
Subtree update of `miri` to https://github.com/rust-lang/miri/commit/f6466ce655ff6b203de81ba6f4cbfe8d8dd6756f.
Created using https://github.com/rust-lang/josh-sync.
r? `@ghost`
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named_associated_type_shorthand_candidates
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lower::callable_item_signature
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now, but more development proceeding. Also contains a more concise test
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Rollup of 10 pull requests
Successful merges:
- rust-lang/rust#146632 (Fix uses of "adaptor")
- rust-lang/rust#146731 (test: Use SVG for terminal url test)
- rust-lang/rust#146775 (fixes for numerous clippy warnings)
- rust-lang/rust#146784 ([win] Use find-msvc-tools instead of cc to find the linker and rc on Windows)
- rust-lang/rust#146799 (Fix a dangling reference in `rustc_thread_pool`)
- rust-lang/rust#146802 (mbe: Simplifications and refactoring)
- rust-lang/rust#146806 (add private module override re-export test)
- rust-lang/rust#146827 (Linker-plugin-based LTO: update list of good combinations (inc. beta + nightly))
- rust-lang/rust#146875 (tests/run-make/crate-loading: Rename source files for clarity)
- rust-lang/rust#146877 (prevent line number from being copied in chrome)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=fmease,lolbinarycat,GuillaumeGomez
prevent line number from being copied in chrome
- Closes rust-lang/rust#146816
Fix the issue where line numbers are copied along with code in Chrome
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tests/run-make/crate-loading: Rename source files for clarity
For rust-lang/rust#146874 I originally tried to extend the existing test **tests/run-make/crate-loading**. That didn't work out since adding a re-export of the entire crate significantly changes the emitted error messsage.
I did put some effort into making that test easier to understand however, by renaming its files. (Since I was confused myself at first.) Let's save some time for future devs by doing just the renames.
Further cleanups are possible, but that will change the blessed output, so let's not do that right now.
r? ```@jieyouxu``` since you have the context of rust-lang/rust#146874
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Linker-plugin-based LTO: update list of good combinations (inc. beta + nightly)
This PR updates the list of good combinations of Rust toolchains and LLVM releases for linker-plugin-based LTO
Related to first question in https://users.rust-lang.org/t/questions-regarding-linker-plugin-based-lto/134070
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add private module override re-export test
- Closes rust-lang/rust#60926
Added a new test to check that `rustdoc` does not create links to `m2` in the crate root when `pub use m1::*` is overrided by `use crate::m1::m2`.
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mbe: Simplifications and refactoring
A few simplifications and refactors in advance of other work.
Macro metavariable expressions were using `Ident::as_str` and doing string
comparisons; I converted them to use symbols.
I factored out a function for transcribing a `ParseNtResult`, which will help
separate the evaluation and transcription of future macro metavariable
expressions.
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Fix a dangling reference in `rustc_thread_pool`
This diverged from `rayon` in rust-lang/rust#142384, where a cleanup commit turned the matched `worker_index` into a reference, which is read _after_ the `set` that may kill it. I've moved that read beforehand, and I hope the new comments will emphasize the subtlety of this unsafe code.
Hopefully fixes rust-lang/rust#146677.
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[win] Use find-msvc-tools instead of cc to find the linker and rc on Windows
`find-msvc-tools` was factored out from `cc` to allow updating the use in `rustc_codegen_ssa` (finding the linker when running the Rust compiler) and `rustc_windows_rc` (finding the Windows Resource Compiler when running the Rust compiler) to be separate from the use in `rustc_llvm` (building LLVM as part of building the Rust compiler).
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fixes for numerous clippy warnings
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test: Use SVG for terminal url test
I came across the test for `-Zterminal-urls` and found its output a bit hard to read. So, I decided to switch it to an SVG test, as I found it easier to differentiate the link and link text.
Note: `anstyle-svg` needed to be upgraded to at least `0.1.8` to support links in SVGs, so I went ahead and upgraded it to the latest version (`0.1.11`).
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