rust/library/core/src/lib.rs, branch beta

simplify the declaration of the legacy integer modules (`std::u32` etc.)

2025-09-08T20:28:36+00:00

Rollup merge of #145690 - sayantn:integer-funnel-shift, r=tgross35

2025-09-04T05:43:21+00:00

Implement Integer funnel shifts Tracking issue: rust-lang/rust#145686 ACP: https://github.com/rust-lang/libs-team/issues/642 This implements funnel shifts on primitive integer types. Implements this for cg_llvm, with a fallback impl for everything else Thanks `@folkertdev` for the fixes and tests cc `@rust-lang/libs-api`

Add `funnel_sh{l,r}` functions and intrinsics

2025-09-03T08:43:24+00:00

- Add a fallback implementation for the intrinsics - Add LLVM backend support for funnel shifts Co-Authored-By: folkertdev

Rollup merge of #145335 - clarfonthey:wtf8-core-alloc, r=Mark-Simulacrum

2025-08-27T05:45:56+00:00

Move WTF-8 code from std into core and alloc This is basically a small portion of rust-lang/rust#129411 with a smaller scope. It *does not*\* affect any public APIs; this code is still internal to the standard library. It just moves the WTF-8 code into `core` and `alloc` so it can be accessed by `no_std` crates like `backtrace`. > \* The only public API this affects is by adding a `Debug` implementation to `std::os::windows::ffi::EncodeWide`, which was not present before. This is due to the fact that `core` requires `Debug` implementations for all types, but `std` does not (yet) require this. Even though this was ultimately changed to be a wrapper over the original type, not a re-export, I decided to keep the `Debug` implementation so it remains useful. Like we do with ordinary strings, the tests are still located entirely in `alloc`, rather than splitting them into `core` and `alloc`. ---- Reviewer note: for ease of review, this is split into three commits: 1. Moving the original files into their new "locations" 2. Actually modifying the code to compile. 3. Removing aesthetic changes that were made so that the diff for commit 2 was readable. You can review commits 1 and 3 to verify these claims, but commit 2 contains the majority of the changes you should care about. ---- API changes: `impl Debug for std::os::windows::ffi::EncodeWide`

Introduce Reborrow lang item and trait

2025-08-21T20:53:25+00:00

Move WTF-8 code from std to core/alloc

2025-08-21T00:31:33+00:00

Remove the `From` derive macro from prelude

2025-08-18T11:12:19+00:00

To avoid backwards compatibility problems.

Rollup merge of #145322 - LorrensP-2158466:early-prelude-processing, r=petrochenkov

2025-08-15T06:16:39+00:00

Resolve the prelude import in `build_reduced_graph` This pr tries to resolve the prelude import at the `build_reduced_graph` stage. Part of batched import resolution in rust-lang/rust#145108 (cherry picked commit) and maybe needed for rust-lang/rust#139493. r? petrochenkov

resolve prelude import at `build_reduced_graph` phase

2025-08-14T13:28:35+00:00

Stabilize `sse4a` and `tbm` target features

2025-08-13T20:37:40+00:00

- remove some stabilized target features from `gate.rs`