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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#123476 (std::net: adding `unix_socket_exclbind` feature for solaris/illumos.)
- rust-lang/rust#142708 (Do not include NUL-terminator in computed length)
- rust-lang/rust#142963 (Skip unnecessary components in x64 try builds)
- rust-lang/rust#142987 (rustdoc: show attributes on enum variants)
- rust-lang/rust#143031 (Add windows-gnullvm hosts to the manifest)
- rust-lang/rust#143082 (update internal `send_signal` comment)
- rust-lang/rust#143110 (Use tidy to sort `sym::*` items)
- rust-lang/rust#143111 (BTreeSet: remove duplicated code by reusing `from_sorted_iter`)
- rust-lang/rust#143114 (Minor Documentation Improvements)
r? `@ghost`
`@rustbot` modify labels: rollup
try-job: dist-i586-gnu-i586-i686-musl
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subtree-update_cg_gcc_2025-06-28
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Use tidy to sort `sym::*` items
Use tidy to sort the symbols in the invocation of `symbols!`, instead of implementing the ordering check inside the proc macro.
(asked `````@nnethercote````` about this on zulip, he didn't have any reservations about making this change)
This has a couple of benefits:
- tidy's "version sort" (thanks to rust-lang/rust#141311 !) is nicer than the naive-cmp sort, so, e.g. `AtomicI{8, 16, 32, 64, 128}` are properly sorted by bit width.
- consistency with the rest of the repo
- allows us to remove a bit of order-verifying code from the `symbols!` proc macro impl
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Do not include NUL-terminator in computed length
This PR contains just the first commit of rust-lang/rust#142579 which changes it so that the string length stored in the `Location` is the length of the `&str` rather than the length of the `&CStr`. Since most users will want the `&str` length, it seems better to optimize for that use-case.
There should be no visible changes in the behavior or API.
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Only compute recursive callees once.
Inlining MIR in a cyclic call graph may create query cycles, which are ICEs. The current implementation `mir_callgraph_reachable(inlining_candidate, being_optimized)` checks if calling `inlining_candidate` may cycle back to `being_optimized` that we are currently inlining into.
This PR replaces this device with query `mir_callgraph_cyclic(being_optimized)` which searches the call graph for all cycles going back to `being_optimized`, and returns the set of functions involved in those cycles.
This is a tradeoff:
- in the current implementation, we perform more walks, but shallower;
- in this new implementation, we perform fewer walks, but exhaust the graph.
I'd have liked to compute this using some kind of SCC, but generic parameters make resolution path-dependent, so usual graph algorithms do not apply.
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Don't fold in Instantiate when there's nothing to fold
Maybe this helps idk
r? lcnr
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Co-authored-by: Anne Stijns <anstijns@gmail.com>
Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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Insert checks for enum discriminants when debug assertions are enabled
Similar to the existing null-pointer and alignment checks, this checks for valid enum discriminants on creation of enums through unsafe transmutes. Essentially this sanitizes patterns like the following:
```rust
let val: MyEnum = unsafe { std::mem::transmute<u32, MyEnum>(42) };
```
An extension of this check will be done in a follow-up that explicitly sanitizes for extern enum values that come into Rust from e.g. C/C++.
This check is similar to Miri's capabilities of checking for valid construction of enum values.
This PR is inspired by saethlin@'s PR
https://github.com/rust-lang/rust/pull/104862. Thank you so much for keeping this code up and the detailed comments!
I also pair-programmed large parts of this together with vabr-g@.
r? `@saethlin`
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Co-authored-by: Zoxc <zoxc32@gmail.com>
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Co-authored-by: Zoxc <zoxc32@gmail.com>
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Co-authored-by: Zoxc <zoxc32@gmail.com>
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#139858 (New const traits syntax)
- rust-lang/rust#140809 (Reduce special casing for the panic runtime)
- rust-lang/rust#142730 (suggest declaring modules when file found but module not defined)
- rust-lang/rust#142806 (Normalize before computing ConstArgHasType goal in new solver)
- rust-lang/rust#143046 (const validation: properly ignore zero-sized UnsafeCell)
- rust-lang/rust#143092 (const checks for lifetime-extended temporaries: avoid 'top-level scope' terminology)
- rust-lang/rust#143096 (tag_for_variant: properly pass TypingEnv)
- rust-lang/rust#143104 (hir_analysis: prohibit `dyn PointeeSized`)
- rust-lang/rust#143106 (gce: don't ICE on non-local const)
Failed merges:
- rust-lang/rust#143036 (Remove support for `dyn*` from the compiler)
r? `@ghost`
`@rustbot` modify labels: rollup
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gce: don't ICE on non-local const
Fixes rust-lang/rust#133808
I have absolutely no idea what I'm doing here, but I followed `@BoxyUwU` 's [instructions](https://github.com/rust-lang/rust/issues/133808#issuecomment-3009122957), and turns out this small change fixes rust-lang/rust#133808, and doesn't seem to break anything else.
(This code path is only reachable when the GCE feature gate is enabled, so even if it does break in a way that is not caught by current test coverage, I guess it's not as bad as breaking stable or non-incomplete features?)
Anyways, r? `@BoxyUwU` , if you don't mind.
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r=compiler-errors
hir_analysis: prohibit `dyn PointeeSized`
Fixes rust-lang/rust#142652
Supersedes rust-lang/rust#142663
`dyn PointeeSized` is nonsensical as a `dyn PointeeSized` needs to be `MetaSized`, so lets reject it to avoid hitting code paths that expect a builtin impl for `PointeeSized`
r? `@compiler-errors`
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tag_for_variant: properly pass TypingEnv
Hard-coding `fully_monomorphized` here does not seem right...
This came up [on Zulip](https://rust-lang.zulipchat.com/#narrow/channel/182449-t-compiler.2Fhelp/topic/.E2.9C.94.20VariantId.3DDiscriminant.20when.20tag.20is.20niche.20encoded.3F/with/526103956).
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const checks for lifetime-extended temporaries: avoid 'top-level scope' terminology
This error recently got changed in https://github.com/rust-lang/rust/pull/140942 to use the terminology of "top-level scope", but after further discussion in https://github.com/rust-lang/reference/pull/1865 it seems the reference will not be using that terminology after all. So let's also remove it from the compiler again, and let's focus on what actually happens with these temporaries: their lifetime is extended until the end of the program.
r? ``@oli-obk`` ``@traviscross``
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const validation: properly ignore zero-sized UnsafeCell
Fixes https://github.com/rust-lang/rust/issues/142948
r? `@oli-obk`
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Normalize before computing ConstArgHasType goal in new solver
This is a fix for rust-lang/rust#139905. See the description I left in the test.
I chose to fix this by normalizing the type before matching on its `.kind()` in `compute_const_arg_has_type_goal` (since it feels somewhat consistent with how we normalize types before assembling their candidates, for example); however, there are several other solutions that come to mind for fixing this ICE:
1. (this solution)
2. Giving `ConstKind::Error` a proper type, like `ConstKind::Value`, so that consts don't go from failing to passing `ConstArgHasType` goals after normalization (i.e. `UNEVALUATED` would normalize into a `ConstKind::Error(_, bool)` type rather than losing its type altogether).
3. Just suppressing the errors and accepting the fact that goals can go from fail->pass after normalization.
Thoughts? Happy to discuss this fix further.
r? `@BoxyUwU`
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bend-n:suggest_declaring_modules_when_file_found_but_module_not_defined, r=petrochenkov
suggest declaring modules when file found but module not defined
suggests declaring modules when a module is found but not defined, i.e
```
├── main.rs: `use thing::thang;`
└── thing.rs: `struct thang`
```
or
```
├── main.rs: `use thing::thang;`
└── thing
└── mod.rs: `struct thang`
```
which currently is just
```rust
error[E0432]: unresolved import `yeah`
--> src/main.rs:1:1
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1 | use thing::thang;
| ^^^^^ use of unresolved module or unlinked crate `thing`
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```
but now would have this nice help:
```text
= help: you may have forgotten to declare the module `thing`. use `mod thing` in this file to declare this module.
```
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Reduce special casing for the panic runtime
See the individual commits for more info.
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New const traits syntax
This PR only affects the AST and doesn't actually change anything semantically.
All occurrences of `~const` outside of libcore have been replaced by `[const]`. Within libcore we have to wait for rustfmt to be bumped in the bootstrap compiler. This will happen "automatically" (when rustfmt is run) during the bootstrap bump, as rustfmt converts `~const` into `[const]`. After this we can remove the `~const` support from the parser
Caveat discovered during impl: there is no legacy bare trait object recovery for `[const] Trait` as that snippet in type position goes down the slice /array parsing code and will error
r? ``@fee1-dead``
cc ``@nikomatsakis`` ``@traviscross`` ``@compiler-errors``
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Clippy subtree update
r? `@Manishearth`
Cargo.lock update due to version bump
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Rollup of 10 pull requests
Successful merges:
- rust-lang/rust#142270 (Rustdoc js: even more typechecking improvements)
- rust-lang/rust#142420 (Report infer ty errors during hir ty lowering)
- rust-lang/rust#142671 (add #![rustc_no_implicit_bounds])
- rust-lang/rust#142721 (Add tracing to `InterpCx::layout_of()` )
- rust-lang/rust#142818 (Port `#[used]` to new attribute parsing infrastructure)
- rust-lang/rust#143020 (codegen_fn_attrs: make comment more precise)
- rust-lang/rust#143051 (Add tracing to `validate_operand`)
- rust-lang/rust#143060 (Only args in main diag are saved and restored without removing the newly added ones)
- rust-lang/rust#143065 (Improve recovery when users write `where:`)
- rust-lang/rust#143084 (const-eval: error when initializing a static writes to that static)
r? `@ghost`
`@rustbot` modify labels: rollup
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const-eval: error when initializing a static writes to that static
Fixes https://github.com/rust-lang/rust/issues/142404 by also calling the relevant hook for writes, not just reads. To avoid erroring during the actual write of the initial value, we neuter the hook when popping the final stack frame.
Calling the hook during writes requires changing its signature since we cannot pass in the entire interpreter any more.
While doing this I also realized a gap in https://github.com/rust-lang/rust/pull/142575 for zero-sized copies on the read side, so I fixed that and added a test.
r? `@oli-obk`
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Improve recovery when users write `where:`
Improve recovery of `where:`.
Fixes https://github.com/rust-lang/rust/issues/143023
The erroneous suggestion was because we were seeing `:` then a type, which the original impl thought must be a struct field. Make this a bit more accurate by checking for a non-reserved ident (which should be a field name).
Also, make a custom parser error for `where:` so we can continue parsing after the colon.
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