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r=fee1-dead,WaffleLapkin
Add edition checks for some tests that had divergent output
In order to expose edition dependent divergences in some tests in the test suite, add explicit `edition` annotations. Some of these tests might require additional work to *avoid* the divergences, as they might have been unintentional. These are not exhaustive changes, purely opportunistic while I was looking at something else.
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Convert some ABI tests to use `extern "rust-invalid"`
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Check CoerceUnsized impl validity before coercing
Self-explanatory from the title.
Fixes rust-lang/rust#126982
Fixes rust-lang/rust#131048
Fixes rust-lang/rust#134217
Fixes rust-lang/rust#126269
Fixes rust-lang/rust#138265
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`tests/ui`: A New Order [8/N]
Some `tests/ui/` housekeeping, to trim down number of tests directly under `tests/ui/`. Part of rust-lang/rust#133895.
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In order to expose edition dependent divergences in some tests in the test suite, add explicit `edition` annotations. Some of these tests might require additional work to *avoid* the divergences, as they might have been unintentional. These are not exhaustive changes, purely opportunistic while looking at something else.
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If we ever start testing every edition, using a new keyword unnecessarily will cause divergent output, so pre-emptively change `gen` into `generator`.
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The cross-build megatest gets extremely conflict-prone, so
start cutting it into smaller pieces.
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r=workingjubilee
Taint body on invalid call ABI
Fixes https://github.com/rust-lang/rust/issues/142969
I'm not certain if there are any other paths that should be tainted, but they would operate similarly. Perhaps pointer coercion.
Introduces `extern "rust-invalid"` for testing purposes.
r? ```@workingjubilee``` or ```@oli-obk``` (or anyone)
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r=GuillaumeGomez
rustdoc: Don't mark `#[target_feature]` functions as ⚠
Closes https://github.com/rust-lang/rust/issues/142952
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Couple of test suite fixes for cg_clif
Most of these are required for getting the test suite running with panic=unwind for cg_clif.
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Tweak `-Zmacro-stats` measurement.
It currently reports net size, i.e. size(output) - size(input). After some use I think this is sub-optimal, and it's better to just report size(output). Because for derive macros the input size is always 1, and for attribute macros it's almost always 1.
r? ```@petrochenkov```
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Enable short-ice for Windows
Works fine for x64 without modifications.
x86 MSVC is still failing.
Addresses item in rust-lang/rust#128602
---
try-job: x86_64-mingw-*
try-job: x86_64-msvc-*
try-job: i686-msvc-*
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Port `#[track_caller]` to the new attribute system
r? ``@oli-obk``
depends on https://github.com/rust-lang/rust/pull/142493
Closes rust-lang/rust#142783
(didn't add a test for this, this situation should simply never come up again, the code was simply wrong. lmk if I should add it, but it won't test something very useful)
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Avoid a bitcast FFI call in transmuting
For things that only change the valid ranges, we can just return the input, rather than making the `LLVMBuildBitCast` call and having *it* then do nothing.
I tried to tweak this a bit more and broke stuff, so I also added some extra tests for that as we apparently didn't have coverage.
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r=workingjubilee
Error on invalid signatures for interrupt ABIs
We recently added `extern "custom"`, which must have type `fn()`. The various `extern "interrupt"` ABIs impose similar constraints on the signature of functions with that ABI: `x86-interrupt` should not have a return type (linting on the exact argument types is left as future work), and the other interrupt ABIs cannot have any parameters or a return type.
r? ```@workingjubilee```
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r=oli-obk,traviscross
Add `#[loop_match]` for improved DFA codegen
tracking issue: https://github.com/rust-lang/rust/issues/132306
project goal: https://github.com/rust-lang/rust-project-goals/issues/258
This PR adds the `#[loop_match]` attribute, which aims to improve code generation for state machines. For some (very exciting) benchmarks, see https://github.com/rust-lang/rust-project-goals/issues/258#issuecomment-2732965199
Currently, a very restricted syntax pattern is accepted. We'd like to get feedback and merge this now before we go too far in a direction that others have concerns with.
## current state
We accept code that looks like this
```rust
#[loop_match]
loop {
state = 'blk: {
match state {
State::A => {
#[const_continue]
break 'blk State::B
}
State::B => { /* ... */ }
/* ... */
}
}
}
```
- a loop should have the same semantics with and without `#[loop_match]`: normal `continue` and `break` continue to work
- `#[const_continue]` is only allowed in loops annotated with `#[loop_match]`
- the loop body needs to have this particular shape (a single assignment to the match scrutinee, with the body a labelled block containing just a match)
## future work
- perform const evaluation on the `break` value
- support more state/scrutinee types
## maybe future work
- allow `continue 'label value` syntax, which `#[const_continue]` could then use.
- allow the match to be on an arbitrary expression (e.g. `State::Initial`)
- attempt to also optimize `break`/`continue` expressions that are not marked with `#[const_continue]`
r? ``@traviscross``
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Implement parsing of pinned borrows
This PR implements part of #130494.
EDIT: It introduces `&pin mut $place` and `&pin const $place` as sugars for `std::pin::pin!($place)` and its shared reference equivalent, except that `$place` will not be moved when borrowing. The borrow check will be in charge of enforcing places cannot be moved or mutably borrowed since being pinned till dropped.
### Implementation steps:
- [x] parse the `&pin mut $place` and `&pin const $place` syntaxes
- [ ] borrowck of `&pin mut|const`
- [ ] support autoref of `&pin mut|const` when needed
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#142645 (Also emit suggestions for usages in the `non_upper_case_globals` lint)
- rust-lang/rust#142657 (mbe: Clean up code with non-optional `NonterminalKind`)
- rust-lang/rust#142799 (rustc_session: Add a structure for keeping both explicit and default sysroots)
- rust-lang/rust#142805 (Emit a single error when importing a path with `_`)
- rust-lang/rust#142882 (Lazy init diagnostics-only local_names in borrowck)
- rust-lang/rust#142883 (Add impl_trait_in_bindings tests from rust-lang/rust#61773)
- rust-lang/rust#142943 (Don't include current rustc version string in feature removed help)
- rust-lang/rust#142965 ([RTE-497] Ignore `c-link-to-rust-va-list-fn` test on SGX platform)
- rust-lang/rust#142972 (Add a missing mailmap entry)
r? `@ghost`
`@rustbot` modify labels: rollup
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Closes https://www.github.com/rust-lang/rust/issues/142952
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raoulstrackx:raoul/rte-497-fix_c-link-to-rust-va-list-fn_test, r=jieyouxu
[RTE-497] Ignore `c-link-to-rust-va-list-fn` test on SGX platform
rust-lang/rust#141856 enables using the runner defined in bootstrap.toml to execute run-make tests. A test was added for this feature that compiles a Rust library and C code, links them together and passes the result to the runner. Unfortunately, that's not sufficient for the SGX platform; x86 machine code cannot be directly executed. This PR fixes the issue by disabling this test for SGX.
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Don't include current rustc version string in feature removed help
The version string is difficult to properly normalize out, and removing it isn't a huge deal (the user can query version info easily through `rustc --version` or `cargo --version`).
The normalization options were all non-ideal (see https://github.com/rust-lang/rust/pull/142940#issuecomment-2998518450):
- Per-test version string normalization is nasty to maintain, and we need to maintain `n` copies of it. See rust-lang/rust#142930 where the regex wasn't robust against different release channels.
- Centralized compiletest normalization (with a directive opt-out) is also not ideal, because `cfg(version(..))` tests can't have those accidentally normalized out (and you'd have to remember to opt-out).
r? `@workingjubilee` (discussed in rust-lang/rust#142940)
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Add impl_trait_in_bindings tests from #61773
This adds the [three test cases](https://github.com/rust-lang/rust/issues/61773#issuecomment-2952638727) from the rust-lang/rust#61773 as was suggested by ``@lcnr.``
I have merged the first two cases into one, named as `region-lifetimes.rs`
r? ``@lcnr``
Closes rust-lang/rust#61773
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Emit a single error when importing a path with `_`
When encountering `use _;`, `use _::*'` or similar, do not emit two errors for that single mistake. This also side-steps the issue of resolve errors suggesting adding a crate named `_` to `Cargo.toml`.
Fix rust-lang/rust#142662.
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rustc_session: Add a structure for keeping both explicit and default sysroots
Also avoid creating and cloning sysroot unnecessarily.
Implements the suggestion from https://github.com/rust-lang/rust/pull/142089#discussion_r2132204079.
r? ``@bjorn3``
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r=petrochenkov
mbe: Clean up code with non-optional `NonterminalKind`
Since [rust-lang/rust#128425], the fragment specifier is unconditionally required in all
editions. This means `NonTerminalKind` no longer needs to be optional,
as we can reject this code during the expansion of `macro_rules!` rather
than handling it throughout the code. Do this cleanup here.
[rust-lang/rust#128425]: https://github.com/rust-lang/rust/pull/128425
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Also emit suggestions for usages in the `non_upper_case_globals` lint
This PR adds suggestions for all the usages of the renamed item in the warning of the `non_upper_case_globals` lint.
Fixes https://github.com/rust-lang/rust/issues/124061
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When encountering `use _;`, `use _::*'` or similar, do not emit two errors for that single mistake. This also side-steps the issue of resolve errors suggesting adding a crate named `_` to `Cargo.toml`.
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The version string is difficult to properly normalize out, and removing
it isn't a huge deal (the user can query version info easily through
`rustc --version` or `cargo --version`).
The normalization options were all non-ideal:
- Per-test version string normalization is nasty to maintain, and we
need to maintain `n` copies of it.
- Centralized compiletest normalization (with a directive opt-out) is
also not ideal, because `cfg(version(..))` tests can't have those
accidentally normalized out (and you'd have to remember to opt-out).
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Stats output tweaks
Some improvements to `-Zinput-stats` and `-Zmeta-stat` inspired by the new `-Zmacro-stats`.
r? `@lqd`
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rustdoc-json: Add test for `#[cold]`
Follow-up to https://github.com/rust-lang/rust/pull/142491
r? `@GuillaumeGomez`
CC `@jdonszelmann`
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r=GuillaumeGomez
rustdoc-json: Add test for `#[optimize(..)]`
Follow up to https://github.com/rust-lang/rust/pull/138291
CC `@jdonszelmann`
r? `@GuillaumeGomez`
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Enable reproducible-build-2 for Windows MSVC
Works with MSVC if instructing the linker to avoid timestamps and deleting the PDB between compilations.
Addresses item in rust-lang/rust#128602
---
try-job: x86_64-mingw-*
try-job: x86_64-msvc-*
try-job: i686-msvc-*
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[win][aarch64] Fix linking statics on Arm64EC, take 2
Arm64EC builds recently started to fail due to the linker not finding a symbol:
```
symbols.o : error LNK2001: unresolved external symbol #_ZN3std9panicking11EMPTY_PANIC17hc8d2b903527827f1E (EC Symbol)
C:\Code\hello-world\target\arm64ec-pc-windows-msvc\debug\deps\hello_world.exe : fatal error LNK1120: 1 unresolved externals
```
It turns out that `EMPTY_PANIC` is a new static variable that was being exported then imported from the standard library, but when exporting LLVM didn't prepend the name with `#` (as only functions are prefixed with this character), whereas Rust was prefixing with `#` when attempting to import it.
The fix is to have Rust not prefix statics with `#` when importing.
Adding tests discovered another issue: we need to correctly mark static exported from dylibs with `DATA`, otherwise MSVC's linker assumes they are functions and complains that there is no exit thunk for them.
Fixes rust-lang/rust#138541
Resurrects rust-lang/rust#140176 now that rust-lang/rust#141061 is merged, which removes the incompatibility with `__rust_no_alloc_shim_is_unstable`.
r? ``@wesleywiser``
CC ``@bjorn3``
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Remove the deprecated unstable `concat_idents!` macro
In [rust-lang/rust#137653], the lang and libs-API teams did a joint FCP to deprecate
and eventually remove the long-unstable `concat_idents!` macro. The
deprecation is landing in 1.88, so do the removal here (target version
1.90).
This macro has been superseded by the more recent `${concat(...)}`
metavariable expression language feature, which avoids some of the
limitations of `concat_idents!`. The metavar expression is unstably
available under the [`macro_metavar_expr_concat`] feature.
History is mildly interesting here: `concat_idents!` goes back to 2011
when it was introduced with 513276e595f8 ("Add #concat_idents[] and
#ident_to_str[]"). The syntax looks a bit different but it still works
about the same:
let asdf_fdsa = "<.<";
assert(#concat_idents[asd,f_f,dsa] == "<.<");
assert(#ident_to_str[use_mention_distinction]
== "use_mention_distinction");
(That test existed from introduction until its removal here.)
Closes: https://github.com/rust-lang/rust/issues/29599
[rust-lang/rust#137653]: https://github.com/rust-lang/rust/pull/137653
[`macro_metavar_expr_concat`]: https://github.com/rust-lang/rust/issues/124225
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Also avoid creating and cloning sysroot unnecessarily.
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