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`tests/ui`: A New Order [24/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@tgross35`
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`tests/ui`: A New Order [22/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@tgross35`
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`tests/ui`: A New Order [21/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@tgross35`
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`tests/ui`: A New Order [18/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@tgross35`
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`tests/ui`: A New Order [14/N]
> [!NOTE]
>
> Intermediate commits are intended to help review, but will be squashed prior to merge.
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
r? `@jieyouxu`
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Allow `enum` and `union` literals to also create SSA values
Today, `Some(x)` always goes through an `alloca`, even in trivial cases where the niching means the constructor doesn't even change the value.
For example, <https://rust.godbolt.org/z/6KG6PqoYz>
```rust
pub fn demo(r: &i32) -> Option<&i32> {
Some(r)
}
```
currently emits the IR
```llvm
define align 4 ptr `@demo(ptr` align 4 %r) unnamed_addr {
start:
%_0 = alloca [8 x i8], align 8
store ptr %r, ptr %_0, align 8
%0 = load ptr, ptr %_0, align 8
ret ptr %0
}
```
but with this PR it becomes just
```llvm
define align 4 ptr `@demo(ptr` align 4 %r) unnamed_addr {
start:
ret ptr %r
}
```
(Of course the optimizer can clean that up, but it'd be nice if it didn't have to -- especially in debug where it doesn't run. This is like rust-lang/rust#123886, but that only handled non-simd `struct`s -- this PR generalizes it to all non-simd ADTs.)
Doing this means handing variants other than `FIRST_VARIANT`, handling the active field for unions, refactoring the discriminant code so the Place and Operand parts can share the calculation, etc.
Other PRs that led up to this one:
- https://github.com/rust-lang/rust/pull/142005
- https://github.com/rust-lang/rust/pull/142103
- https://github.com/rust-lang/rust/pull/142324
- https://github.com/rust-lang/rust/pull/142383
---
try-job: aarch64-gnu
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clean up GVN TypeId test
addresses https://github.com/rust-lang/rust/pull/142789#discussion_r2184897992
This is an attempt to clarify what this test is actually supposed to test and make it less dependent on `TypeId` internals (it now depends on the output of `type_name` instead).
I verified that this version still miscompiles on `nightly-2025-02-11`.
r? ``@oli-obk`` ``@RalfJung``
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remove special-casing of boxes from match exhaustiveness/usefulness analysis
As a first step in replacing `box_patterns` with `deref_patterns`, this treats box patterns as deref patterns in the THIR and exhaustiveness analysis. This allows a bunch of special-casing to be removed. The emitted MIR is unchanged.
Incidentally, this fixes a bug caused by box patterns being treated like structs rather than pointers, where enabling `exhaustive_patterns` (rust-lang/rust#51085) could give rise to spurious `unreachable_patterns` lints on arms required for exhaustiveness. Following the lint's advice to remove the match arm would result in an error. I'm not sure what the current state of `exhaustive_patterns` is with regard to reference/box opsem, or whether there's any intention to have `unreachable_patterns` be more granular than the whole arm, but regardless this should hopefully make them easier to handle consistently.
Tracking issue for deref patterns: rust-lang/rust#87121
r? `@Nadrieril`
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mbe: Gracefully handle macro rules that end after `=>`
Add a test for various cases of invalid macro definitions.
Closes: https://github.com/rust-lang/rust/issues/143351
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opeq.rs was removed as duplicating test logic in other tests
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Remove `PointerLike` trait
r? oli-obk
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Make -Ztrack-diagnostics emit like a note
[#t-compiler/diagnostics > Rendering -Ztrack-diagnostics like a note](https://rust-lang.zulipchat.com/#narrow/channel/147480-t-compiler.2Fdiagnostics/topic/Rendering.20-Ztrack-diagnostics.20like.20a.20note/with/526608647)
As discussed on the Zulip thread above, I want to make `-Ztrack-diagnostics` emit like a `note`. This is because I find its current output jarring, and the fact that it gets rendered completely left-aligned, [even in the middle of a snippet](https://github.com/rust-lang/rust/blob/86e05cd300fac9e83e812c4d46582b48db780d8f/tests/ui/track-diagnostics/track6.stderr), seems like something that should be changed. Turning it into a `note` seems like the best choice, as it would align it with the rest of the output, and `note` is already used for somewhat similar things, like seeing why a lint was fired.
---
Note: turning `-Ztrack-diagnostics` into a `note` will also make `annotate-snippets` API a bit cleaner
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This removes special-casing of boxes from `rustc_pattern_analysis`, as a
first step in replacing `box_patterns` with `deref_patterns`.
Incidentally, it fixes a bug caused by box patterns being represented as
structs rather than pointers, where `exhaustive_patterns` could generate
spurious `unreachable_patterns` lints on arms required for
exhaustiveness; following the lint's advice would result in an error.
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r=jdonszelmann,oli-obk
Port `#[no_implicit_prelude]` to the new attribute parsing infrastructure
Ports no_implicit_prelude to the new attribute parsing infrastructure for https://github.com/rust-lang/rust/issues/131229#issuecomment-2971353197
r? `@oli-obk`
cc `@jdonszelmann`
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Add a test for various cases of invalid macro definitions.
Closes: https://github.com/rust-lang/rust/issues/143351
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rustdoc: don't treat methods under const impls or traits as const
Fixes rust-lang/rust#143071
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Fast path nitpicks
Miscellaneous commits that I didn't really want to fold into anything else.
Fixes one theoretical bug with the fast path not considering polarity for `T: !Sized` bounds.
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MIR inliner maintains unused var_debug_info
Only `full` debuginfo level promises variable-level debug information, but the MIR inline pass needlessly preserved the local variable debug info for the `limited` level too.
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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r=GuillaumeGomez
rustdoc: fix attrs of locally reexported foreign items
fixes rust-lang/rust#135092
also tweaks a few outdated/misleading comments.
r? `@GuillaumeGomez`
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r=jieyouxu
minicore: use core's `diagnostic::on_unimplemented` messages
Without these attributes, the error message is different. Keeping the diagnostics up-to-date seems related to https://github.com/rust-lang/rust/issues/137531.
The modified test files are reported in https://github.com/rust-lang/rust/issues/143319 as failing for `--target=riscv64gc-unknown-linux-gnu`. Using `minicore` for them makes it easier to troubleshoot this sort of issue.
r? ``@jieyouxu``
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Fix rustdoc not correctly showing attributes on re-exports
Fixes attributes not being shown correctly in rustdoc on re-exports
Does this need to be backported to beta?
r? ``@jdonszelmann``
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avoid suggesting traits from private dependencies
fixes rust-lang/rust#142676
fixes rust-lang/rust#138191
r? ``@tgross35``
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Port `#[target_feature]` to new attribute parsing infrastructure
Ports `target_feature` to the new attribute parsing infrastructure for https://github.com/rust-lang/rust/issues/131229#issuecomment-2971353197
r? ``@jdonszelmann``
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setup typos check in CI
This allows to check typos in CI, currently for compiler only (to reduce commit size with fixes). With current setup, exclude list is quite short, so it worth trying?
Also includes commits with actual typo fixes.
MCP: https://github.com/rust-lang/compiler-team/issues/817
typos check currently turned for:
* ./compiler
* ./library
* ./src/bootstrap
* ./src/librustdoc
After merging, PRs which enables checks for other crates (tools) can be implemented too.
Found typos will **not break** other jobs immediately: (tests, building compiler for perf run). Job will be marked as red on completion in ~ 20 secs, so you will not forget to fix it whenever you want, before merging pr.
Check typos: `python x.py test tidy --extra-checks=spellcheck`
Apply typo fixes: `python x.py test tidy --extra-checks=spellcheck:fix` (in case if there only 1 suggestion of each typo)
Current fail in this pr is expected and shows how typo errors emitted. Commit with error will be removed after r+.
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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Make the enum check work for negative discriminants
The discriminant check was not working correctly for negative numbers. This change fixes that by masking out the relevant bits correctly.
Fixes rust-lang/rust#143218.
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Improve CSS for source code block line numbers
Extract some changes from https://github.com/rust-lang/rust/pull/137229 to make the PR smaller (thanks `@yotamofek` for the suggestion!).
r? notriddle
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Rollup of 11 pull requests
Successful merges:
- rust-lang/rust#131923 (Derive `Copy` and `Hash` for `IntErrorKind`)
- rust-lang/rust#138340 (Remove some unsized tuple impls now that we don't support unsizing tuples anymore)
- rust-lang/rust#141219 (Change `{Box,Arc,Rc,Weak}::into_raw` to only work with `A = Global`)
- rust-lang/rust#142212 (bootstrap: validate `rust.codegen-backends` & `target.<triple>.codegen-backends`)
- rust-lang/rust#142237 (Detect more cases of unused_parens around types)
- rust-lang/rust#142964 (Attribute rework: a parser for single attributes without arguments)
- rust-lang/rust#143070 (Rewrite `macro_rules!` parser to not use the MBE engine itself)
- rust-lang/rust#143235 (Assemble const bounds via normal item bounds in old solver too)
- rust-lang/rust#143261 (Feed `explicit_predicates_of` instead of `predicates_of`)
- rust-lang/rust#143276 (loop match: handle opaque patterns)
- rust-lang/rust#143306 (Add `track_caller` attributes to trace origin of Clippy lints)
r? `@ghost`
`@rustbot` modify labels: rollup
try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-gnu
try-job: dist-i586-gnu-i586-i686-musl
try-job: test-various
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#141847 (Explain `TOCTOU` on the top of `std::fs`, and reference it in functions)
- rust-lang/rust#142138 (Add `Vec::into_chunks`)
- rust-lang/rust#142321 (Expose elf abi on ppc64 targets)
- rust-lang/rust#142886 (ci: aarch64-gnu: Stop skipping `panic_abort_doc_tests`)
- rust-lang/rust#143194 (fix bitcast of single-element SIMD vectors)
- rust-lang/rust#143231 (Suggest use another lifetime specifier instead of underscore lifetime)
- rust-lang/rust#143232 ([COMPILETEST-UNTANGLE 3/N] Use "directives" consistently within compiletest)
- rust-lang/rust#143258 (Don't recompute `DisambiguatorState` for every RPITIT in trait definition)
- rust-lang/rust#143274 (ci: support optional jobs)
r? `@ghost`
`@rustbot` modify labels: rollup
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loop match: handle opaque patterns
tracking issue https://github.com/rust-lang/rust/issues/132306
fixes https://github.com/rust-lang/rust/issues/143203
I believe the `Opaque` comes up because the range pattern is invalid? Because we do handle float patterns already so those should be fine.
r? `@Nadrieril`
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Assemble const bounds via normal item bounds in old solver too
Fixes the first example in https://rust-lang.zulipchat.com/#narrow/channel/144729-t-types/topic/elaboration.20of.20const.20bounds.3F/with/526378135
The code duplication here is not that nice, but it's at least very localized.
cc `@davidtwco`
r? oli-obk
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Rewrite `macro_rules!` parser to not use the MBE engine itself
The `macro_rules!` parser was written to match the series of rules using the macros-by-example (MBE) engine and a hand-written equivalent of the left-hand side of a MBE macro. This was complex to read, difficult to extend, and produced confusing error messages. Because it was using the MBE engine, any parse failure would be reported as if some macro was being applied to the `macro_rules!` invocation itself; for instance, errors would talk about "macro invocation", "macro arguments", and "macro call", when they were actually about the macro *definition*.
And in practice, the `macro_rules!` parser only used the MBE engine to extract the left-hand side and right-hand side of each rule as a token tree, and then parsed the rest using a separate parser.
Rewrite it to parse the series of rules using a simple loop, instead. This makes it more extensible in the future, and improves error messages. For instance, omitting a semicolon between rules will result in "expected `;`" and "unexpected token", rather than the confusing "no rules expected this token in macro call".
This work was greatly aided by pair programming with Vincenzo Palazzo (`@vincenzopalazzo)` and Eric Holk (`@eholk).`
For review, I recommend reading the two commits separately.
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Attribute rework: a parser for single attributes without arguments
Part of rust-lang/rust#131229
r? `@jdonszelmann`
I think code (with comments) speaks for itself.
The only subtlety: now `#[cold]`, `#[no_mangle]`, & `#[track_caller]` do not get thrown away when malformed (i.e. have arguments). This doesn't matter too much (I think), because an error gets emitted either way, so the compilation will not finish.
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Detect more cases of unused_parens around types
With this change, more unused parentheses around bounds and types nested within bounds are detected.
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Suggest use another lifetime specifier instead of underscore lifetime
cc rust-lang/rust#143152
r? compiler
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