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Fix a couple Emscripten tests
This fixes a couple Emscripten tests where the correct fix is more or less obvious. A couple UI tests are still broken with this PR:
- `tests/ui/abi/numbers-arithmetic/return-float.rs` (#136197)
- `tests/ui/no_std/no-std-unwind-binary.rs` (haven't debugged yet)
- `tests/ui/test-attrs/test-passed.rs` (haven't debugged this either)
`````@rustbot````` label +T-compiler +O-emscripten
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[rustdoc] Add sans-serif font setting
Fixes https://github.com/rust-lang/rust/issues/52449.
This PR adds a new setting introducing the possibility to switch to a sans-serif font (`Fira Sans`) for the text.
Can be tested [here](https://rustdoc.crud.net/imperio/sans-serif/std/index.html).
cc ```@rust-lang/rustdoc-frontend```
r? ```@notriddle```
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miri: optimize zeroed alloc
When allocating zero-initialized memory in MIR interpretation, rustc allocates zeroed memory, marks it as initialized and then re-zeroes it. Remove the last step.
I don't expect this to have much of an effect on performance normally, but in my case in which I'm creating a large allocation via mmap it gets in the way.
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tests: Port `translation` to rmake.rs
Part of #121876.
This PR partially supersedes #129011 and is co-authored with `@Oneirical.`
## Summary
This PR ports `tests/run-make/translation` to rmake.rs. Notable changes from the Makefile version include:
- We now actually fail if the rustc invocations fail... The Makefile did not have `SHELL=/bin/bash -o pipefail`, so all the piped rustc invocations to grep vacuously succeeded, even if the broken ftl test case actually regressed over time and ICEs on current master.
- That test case is converted to assert it fails with a FIXME backlinking to #135817.
- The test coverage is expanded to not ignore windows. Instead, the test now uses symlink capability detection to gate test execution.
- Added some backlinks to relevant tracking issues and the initial translation infra implementation PR.
## Review advice
Best reviewed commit-by-commit.
r? compiler
try-job: aarch64-apple
try-job: i686-mingw
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Merge `PatKind::Path` into `PatKind::Expr`
Follow-up to #134228
We always had a duplication where `Path`s could be represented as `PatKind::Path` or `PatKind::Lit(ExprKind::Path)`. We had to handle both everywhere, and still do after #134228, so I'm removing it now.
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Update mdbook to 0.4.44
Updates to mdbook 0.4.44.
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0444
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Subtree update of `rust-analyzer`
r? `@ghost`
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Co-authored-by: Oneirical <manchot@videotron.ca>
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Convenience helper for `rustc --print=sysroot`.
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Refactor FnKind variant to hold &Fn
Pulling the change suggested in #128045 to reduce the impact of changing `Fn` item.
r? `@oli-obk`
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r=workingjubilee
ABI-required target features: warn when they are missing in base CPU
Part of https://github.com/rust-lang/rust/pull/135408:
instead of adding ABI-required features to the target we build for LLVM, check that they are already there. Crucially we check this after applying `-Ctarget-cpu` and `-Ctarget-feature`, by reading `sess.unstable_target_features`. This means we can tweak the ABI target feature check without changing the behavior for any existing user; they will get warnings but the target features behave as before.
The test changes here show that we are un-doing the "add all required target features" part. Without the full #135408, there is no way to take a way an ABI-required target feature with `-Ctarget-cpu`, so we cannot yet test that part.
Cc ``@workingjubilee``
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Rename `Piece::String` to `Piece::Lit`
This renames Piece::String to Piece::Lit to avoid shadowing std::string::String and removes "pub use Piece::*;".
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r=lcnr
Do not consider child bound assumptions for rigid alias
r? lcnr
See first commit for the important details. For second commit, I also stacked a somewhat opinionated name change, though I can separate that if needed.
Fixes https://github.com/rust-lang/trait-system-refactor-initiative/issues/149
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Clippy subtree update
r? `@Manishearth`
Quite a bit late, as I was on vacation and then we had an issue in MacOS CI after the sync.
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Updates to mdbook 0.4.44.
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0444
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clippy-subtree-update
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Fix 2/4 tests skipped by opt-dist
The linker errors were because this one test, strangely, wants itself compiled with `-Ctarget-features=+crt-static`, and yet it looks like the runner image is simply missing static libraries for libc and libm.
Eyeballing the output of
```
rustc +nightly --target=x86_64-pc-windows-msvc -O tests/codegen/vec-shrink-panik.rs --emit=llvm-ir
```
suggests that vec-shrink-panik should pass on Windows. And it's quite disturbing that such a test would have failed only on Windows to start with. Exactly why that was would require some advanced digging, but it looks clean now.
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Lower index bounds checking to `PtrMetadata`, this time with the right fake borrow semantics 😸
Change `Rvalue::RawRef` to take a `RawRefKind` instead of just a `Mutability`. Then introduce `RawRefKind::FakeForPtrMetadata` and use that for lowering index bounds checking to a `PtrMetadata`. This new `RawRefKind::FakeForPtrMetadata` acts like a shallow fake borrow in borrowck, which mimics the semantics of the old `Rvalue::Len` operation we're replacing.
We can then use this `RawRefKind` instead of using a span desugaring hack in CTFE.
cc ``@scottmcm`` ``@RalfJung``
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Co-authored-by: Ralf Jung <post@ralfj.de>
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than silently enabling them)
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Miri subtree update
r? `@ghost`
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r=compiler-errors
Clean up all dead files inside `tests/ui/`
While rebasing #135860 I noticed that there are several dead `*.stderr` files inside `tests/ui/`.
When I checked thoroughly, I found 69 dead `*.$revision.stderr` files, 3 other dead `*.stderr` files and one dead `*.rs` file.
Prior to #134808, compiletest's `--bless` didn't remove dead `*.stderr` files when the set of revisions changed in any way (renamings, removals, additions, …) which explains their existence.
Regarding the dead `*.rs` file, that one was located inside an `auxiliary/` directory (together with a `*.stderr` file) despite not being meant to be an auxiliary file (it's not referenced by any `//@ aux-*`, it has an accompanying `*.stderr` file and it's obvious from looking at #111056 which added it). Ideally compiletest or tidy would forbid `*.std{out,err}` files inside `auxiliary/` dirs, that would've caught it. I moved it, updated it and turned it into a proper UI test.
---
How to reproduce:
1. Run `rm tests/ui/**/*.stderr`
2. Run `./x test tests/ui --bless` (or similar)
3. Manually / semi-automatically go through all tests that were ignored (likely due to your OS etc. not matching) and restore any stderr files that were overzealously removed
---
r? compiler
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Uplift `clippy::double_neg` lint as `double_negations`
Warns about cases like this:
```rust
fn main() {
let x = 1;
let _b = --x; //~ WARN use of a double negation
}
```
The intent is to keep people from thinking that `--x` is a prefix decrement operator. `++x`, `x++` and `x--` are invalid expressions and already have a helpful diagnostic.
I didn't add a machine-applicable suggestion to the lint because it's not entirely clear what the programmer was trying to achieve with the `--x` operation. The code that triggers the lint should always be reviewed manually.
Closes #82987
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make linux-futex test less flaky
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This avoids a good deal of work, since each module child can now just be
compared via u32 comparison, rather than fetching the raw &str
(requiring locking and indexing into the interner) and then comparing
the two strings (also relatively expensive).
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Get rid of `mir::Const::from_ty_const`
This function is strange, because it turns valtrees into `mir::Const::Value`, but the rest of the const variants stay as type system consts.
All of the callsites except for one in `instsimplify` (array length simplification of `ptr_metadata` call) just go through the valtree arm of the function, so it's easier to just create a `mir::Const` directly for those.
For the instsimplify case, if we have a type system const we should *keep* having a type system const, rather than turning it into a `mir::Const::Value`; it doesn't really matter in practice, though, bc `usize` has no padding, but it feels more principled.
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Update outdated permissions section in the README.md
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fix: Don't complete doc(hidden) enum variants and use trees
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fix: Make proc_macro span's line & column 1-indexed, as documented
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That is, make the fake number that we return 1 and not 0.
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Also refactor the check a bit.
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