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Rollup of 5 pull requests
Successful merges:
- #123840 (Add an intrinsic for `ptr::from_raw_parts(_mut)`)
- #124224 (cleanup: unnecessary clone during lower generics args)
- #124229 (Add gnullvm targets to manifest)
- #124231 (remove from reviewers)
- #124235 (Move some tests)
r? `@ghost`
`@rustbot` modify labels: rollup
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Move some tests
r? `@petrochenkov`
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remove from reviewers
not gonna be around for a few weeks
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r=Mark-Simulacrum
Add gnullvm targets to manifest
Fixes an oversight from https://github.com/rust-lang/rust/pull/121712
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cleanup: unnecessary clone during lower generics args
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Add an intrinsic for `ptr::from_raw_parts(_mut)`
Fixes #123174
cc `@CAD97` `@saethlin`
r? `@cjgillot`
As suggested in https://github.com/rust-lang/rust/pull/123190#issuecomment-2028717967, this adds a new `AggregateKind::RawPtr` for creating a pointer from its data pointer and its metadata.
That means that `slice::from_raw_parts` and friends no longer need to hard-code pointer layout into `libcore`, and because it no longer does union hacks the MIR is shorter and more amenable to optimizations.
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fix normalizing in different `ParamEnv`s with the same `InferCtxt`
This PR changes the key of the projection cache from just `AliasTy` to `(AliasTy, ParamEnv)` to allow normalizing in different `ParamEnv`s without resetting caches. Previously, normalizing the same alias in different param envs would always reuse the cached result from the first normalization, which is incorrect if the projection clauses in the param env have changed.
Fixing this bug allows us to get rid of `InferCtxt::clear_caches`, which was only used by the `AutoTraitFinder`, because it requires normalizing in different param envs.
r? `@fmease`
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Fix trait solver overflow with `non_local_definitions` lint
This PR fixes the trait solver overflow with the `non_local_definitions` lint reported in https://github.com/rust-lang/rust/issues/123573 using the suggestion from `@lcnr:` https://github.com/rust-lang/rust/issues/123573#issuecomment-2041348320 to use the next trait solver.
~~I have not (yet) tried to create a minimized repro~~ ``@compiler-errors`` did the minimization (thanks you) but I have manually tested on the `starlark-rust` project that it fixes the issue.
Fixes #123573
r? `@lcnr`
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Rollup of 4 pull requests
Successful merges:
- #124069 (enable clippy for bootstrap on CI PRs (in `mingw-check` image))
- #124089 (Fix watchOS and visionOS for pread64 and pwrite64 calls)
- #124184 (Suggest using `unsigned_abs` in `abs` documentation)
- #124198 (Flip spans for precise capturing syntax not capturing a ty/const param, and for implicit captures of lifetime params)
r? `@ghost`
`@rustbot` modify labels: rollup
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Flip spans for precise capturing syntax not capturing a ty/const param, and for implicit captures of lifetime params
Make the primary span point to the opaque, rather than the param which might be very far away (e.g. in an impl header hundreds of lines above).
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r=jhpratt
Suggest using `unsigned_abs` in `abs` documentation
Fixes #124152
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simlay:fix-preadv64-and-pwritev64-link-for-watchos-and-visionos, r=workingjubilee
Fix watchOS and visionOS for pread64 and pwrite64 calls
In #122880, links to `preadv64` and `pwritev64` were added for `watchOS` however the underlying [`weak!` macro did not include `target_os = "watchos"`](https://github.com/rust-lang/rust/blob/c45dee5efd0c042e9d1e24559ebd0d6424d8aa70/library/std/src/sys/pal/unix/weak.rs#L30-L74).
This resulted in an `xcodebuild` error when targeting `watchOS`:
```
Undefined symbols for architecture arm64:
"_preadv64", referenced from:
__rust_extern_with_linkage_preadv64 in libliveview_native_core.a[274](std-324fdd8d31e8eaa2.std.e18cf7e8d0336778-cgu.08.rcgu.o)
"_pwritev64", referenced from:
__rust_extern_with_linkage_pwritev64 in libliveview_native_core.a[274](std-324fdd8d31e8eaa2.std.e18cf7e8d0336778-cgu.08.rcgu.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
```
So I added them. I also went ahead and added the same for visionOS because it's bound to create the same issue.
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enable clippy for bootstrap on CI PRs (in `mingw-check` image)
Let's keep the bootstrap codebase cleaner.
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Miri subtree update
r? `@ghost`
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let's just disable it there, this code is not platform-dependent anyway
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Stabilize Wasm target features that are in phase 4 and 5
This stabilizes the Wasm target features that are known to be working and in [phase 4 and 5](https://github.com/WebAssembly/proposals/tree/04fa8c810e1dc99ab399e41052a6e427ee988180).
Feature stabilized:
- [Non-trapping float-to-int conversions](https://github.com/WebAssembly/nontrapping-float-to-int-conversions)
- [Import/Export of Mutable Globals](https://github.com/WebAssembly/mutable-global)
- [Sign-extension operators](https://github.com/WebAssembly/sign-extension-ops)
- [Bulk memory operations](https://github.com/WebAssembly/bulk-memory-operations)
- [Extended Constant Expressions](https://github.com/WebAssembly/extended-const)
Features not stabilized:
- [Multi-value](https://github.com/WebAssembly/multi-value): requires rebuilding `std` #73755.
- [Reference Types](https://github.com/WebAssembly/reference-types): no point stabilizing without #103516.
- [Threads](https://github.com/webassembly/threads): requires rebuilding `std` #77839.
- [Relaxed SIMD](https://github.com/WebAssembly/relaxed-simd): separate PR #117468.
- [Multi Memory](https://github.com/WebAssembly/multi-memory): not implemented.
See https://github.com/rust-lang/rust/pull/117457#issuecomment-1787648070 for more context.
Documentation: https://github.com/rust-lang/reference/pull/1420
Tracking issue: https://github.com/rust-lang/rust/issues/44839
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* Refactor apple OSs to use pwritev and preadv rather pwritev64 and preadv64
* Updated the comments for preadv and pwritev
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Tell LLVM Vec::len is invariant across growth
This allows LLVM to avoid re-loading it from memory.
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This saves an extra load from memory.
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CI: add script for installing NodeJS and update it to v20
I centralized the installation on a single place to make it simple to update the NodeJS version across the board.
Fixes: https://github.com/rust-lang/rust/issues/123965
r? `@Mark-Simulacrum`
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Rollup of 10 pull requests
Successful merges:
- #123379 (Print note with closure signature on type mismatch)
- #123967 (static_mut_refs: use raw pointers to remove the remaining FIXME)
- #123976 (Use fake libc in core test)
- #123986 (lint-docs: Add redirects for renamed lints.)
- #124053 (coverage: Branch coverage tests for lazy boolean operators)
- #124071 (Add llvm-bitcode-linker to build manifest)
- #124103 (Improve std::fs::Metadata Debug representation)
- #124132 (llvm RustWrapper: explain OpBundlesIndirect argument type)
- #124191 (Give a name to each distinct manipulation of pretty-printer FixupContext)
- #124196 (mir-opt tests: rename unit-test -> test-mir-pass)
r? `@ghost`
`@rustbot` modify labels: rollup
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mir-opt tests: rename unit-test -> test-mir-pass
"unit-test" is extremely non-descriptive, no idea how one is supposed to read that and know that this specifies the MIR pass being tested.
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Give a name to each distinct manipulation of pretty-printer FixupContext
There are only 7 distinct ways that the AST pretty-printer interacts with FixupContext: 3 constructors (including Default), 2 transformations, and 2 queries.
This PR turns these into associated functions which can be documented with examples.
This PR unblocks https://github.com/rust-lang/rust/pull/119427#discussion_r1439481201. In order to improve the pretty-printer's behavior regarding parenthesization of braced macro calls in match arms, which have different grammar than macro calls in statements, FixupContext needs to be extended with 2 new fields. In the previous approach, that would be onerous. In the new approach, all it entails is 1 new constructor (`FixupContext::new_match_arm()`).
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llvm RustWrapper: explain OpBundlesIndirect argument type
Follow-up to https://github.com/rust-lang/rust/pull/123941
r? ``@Mark-Simulacrum``
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Improve std::fs::Metadata Debug representation
- Remove duplication of `mode` between `file_type` and `permissions`, which both involve operating on the same mode_t integer
- Add `is_symlink`
- Add `len` in bytes
- Remove Ok wrapping around `modified`, `accessed`, `created`, which eliminates 6 useless lines
<table>
<tr><th>Before</th><th>After</th></tr>
<tr><td>
```console
Metadata {
file_type: FileType(
FileType {
mode: 0o100600 (-rw-------),
},
),
is_dir: false,
is_file: true,
permissions: Permissions(
FilePermissions {
mode: 0o100600 (-rw-------),
},
),
modified: Ok(
SystemTime {
tv_sec: 1713402981,
tv_nsec: 682983531,
},
),
accessed: Ok(
SystemTime {
tv_sec: 1713402983,
tv_nsec: 206999623,
},
),
created: Ok(
SystemTime {
tv_sec: 1713402981,
tv_nsec: 682983531,
},
),
..
}
```
</td><td>
```console
Metadata {
file_type: FileType {
is_file: true,
is_dir: false,
is_symlink: false,
..
},
permissions: Permissions(
FilePermissions {
mode: 0o100600 (-rw-------),
},
),
len: 2096,
modified: SystemTime {
tv_sec: 1713402981,
tv_nsec: 682983531,
},
accessed: SystemTime {
tv_sec: 1713402983,
tv_nsec: 206999623,
},
created: SystemTime {
tv_sec: 1713402981,
tv_nsec: 682983531,
},
..
}
```
</td></tr></table>
Generated by:
```rust
fn main() {
println!("{:#?}", std::fs::metadata("Cargo.toml").unwrap());
}
```
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r=Mark-Simulacrum
Add llvm-bitcode-linker to build manifest
When creating #123423 I didn't realize I also had to add the new component to the build-manifest. This PR finishes the work of adding it, by also adding it to the build manifest.
r? ``@Mark-Simulacrum``
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coverage: Branch coverage tests for lazy boolean operators
The current branch coverage implementation already supports the `&&` and `||` operators (even outside of an `if` condition), as a natural consequence of how they are desugared/lowered, but we didn't have any specific tests for them. This PR adds some appropriate tests.
I've also moved the existing branch coverage tests into a `coverage/branch` subdirectory, so that they don't become unwieldy as I add more branch coverage tests.
``@rustbot`` label +A-code-coverage
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lint-docs: Add redirects for renamed lints.
This updates the lint docs to include a redirect for renamed lints to the new name. This helps ensure that links to the old name will still be valid.
Note that this currently uses a hard-coded list. As mentioned in the comment, a future enhancement may gather this information in a better way.
Unblocks #123680
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r=Mark-Simulacrum
Use fake libc in core test
The war on libc continues.
Some platforms may not need to link to the libc crate (and it's possible some may not even have a libc), therefore we shouldn't require it for tests. This creates dummy `malloc` and `free` implementations for use in the pointer docs, but, keeps the public documentation looking the same as before.
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static_mut_refs: use raw pointers to remove the remaining FIXME
Using `SyncUnsafeCell` would not make a lot of sense IMO.
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Print note with closure signature on type mismatch
Fixes #119266
r? Nilstrieb
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