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It's not necessary anymore due to Rust 2024 lifetime capture rules.
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Add shims for `gettid`-esque functions
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Various platforms provide a function to return the current OS thread ID,
but they all use a slightly different name. Add shims for these
functions for Apple, FreeBSD, and Windows, with tests to account for
those and a few more platforms that are not yet supported by Miri. The
syscall and extern symbol is included as well on Linux.
These should be useful in general but will also help support printing
the OS thread ID in panic messages [1].
[1]: https://github.com/rust-lang/rust/pull/115746
Squashed commit from Ralf:
try_from_scalar: extend comment
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plus various minor tweaks
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Miri subtree update
r? `@ghost`
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also test on arm-64 linux hosts
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Add SIMD funnel shift and round-to-even intrinsics
This PR adds 3 new SIMD intrinsics
- `simd_funnel_shl` - funnel shift left
- `simd_funnel_shr` - funnel shift right
- `simd_round_ties_even` (vector version of `round_ties_even_fN`)
TODO (future PR): implement `simd_fsh{l,r}` in miri, cg_gcc and cg_clif (it is surprisingly hard to implement without branches, the common tricks that rotate uses doesn't work because we have 2 elements now. e.g, the `-n&31` trick used by cg_gcc to implement rotate doesn't work with this because then `fshl(a, b, 0)` will be `a | b`)
[#t-compiler > More SIMD intrinsics](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/More.20SIMD.20intrinsics/with/522130286)
`@rustbot` label T-compiler T-libs A-intrinsics F-core_intrinsics
r? `@workingjubilee`
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- Update ui.md
- Update type-alias-impl-trait.md
- Update README.md
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Do not append `--compile-time-deps` to overwritten build script commands
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Update cargo
7 commits in 409fed7dc1553d49cb9a8c0637d12d65571346ce..930b4f62cfcd1f0eabdb30a56d91bf6844b739bf
2025-06-23 15:55:04 +0000 to 2025-06-28 14:58:43 +0000
- Use a different lint for the `fix_only_once_for_duplicates` test (rust-lang/cargo#15713)
- chore: bump to 0.91.0; update changelog (rust-lang/cargo#15710)
- Add `http.proxy-cainfo` config for proxy certs (rust-lang/cargo#15374)
- chore(deps): update msrv (3 versions) to v1.86 (rust-lang/cargo#15709)
- chore(deps): update msrv (1 version) to v1.88 (rust-lang/cargo#15706)
- Rework `cargo-test-support` & `testsuite` to use `CARGO_BIN_EXE_*` for Cargo (rust-lang/cargo#15692)
- fix: Expand error messages around path dependency on `cargo package` and `cargo publish` (rust-lang/cargo#15705)
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Synced rust-analyzer configs
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Minor Documentation Improvements
---
## Description
- Fixed typos and improved clarity in comments and documentation.
---
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Add windows-gnullvm hosts to the manifest
I made a mistake testing https://github.com/rust-lang/rust/pull/140772 only with `rustup-toolchain-install-master` which doesn't care about the manifests.
This means windows-gnullvm self-hosting will have to wait one more release, unless this change is backported to beta and a new beta release is made, which doesn't seem worth the trouble.
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Skip unnecessary components in x64 try builds
We unnecessarily rebuild `wasm-component-ld`, `llvm-bitcode-linker` and Cranelift during the intermediate PGO builds several times times, which is unnecessarily and increases the duration of try builds. This PR also disables some unnecessary dist components.
r? `````@jieyouxu`````
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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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by default
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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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const validation: properly ignore zero-sized UnsafeCell
Fixes https://github.com/rust-lang/rust/issues/142948
r? `@oli-obk`
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