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Deeply normalize obligations in `BestObligation` folder
Built on #139513.
This establishes a somewhat rough invariant that the `Obligation`'s predicate is always deeply normalized in the folder; when we construct a new obligation we normalize it.
Putting this up for discussion since it does affect some goals.
r? lcnr
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Introduce a `//@ needs-crate-type` compiletest directive
The `//@ needs-crate-type: $crate_types...` directive takes a comma-separated list of crate types that the target platform must support in order for the test to be run. This allows the test writer to semantically convey that the ignore condition is based on target crate type needs, instead of using a general purpose `//@ ignore-$target` directive (often without comment).
Fixes #132309.
### Example
```rs
//@ needs-crate-type: dylib (ignored on e.g. wasm32-unknown-unknown)
//@ compile-flags: --crate-type=dylib
fn foo() {}
```
### Review advice
- Best reviewed commit-by-commit.
- The impl is not very clean, I briefly attempted to clean up the directive handling but found that more invasive changes are needed, so I'd like to not block on the cleanup for now.
try-job: test-various
try-job: armhf-gnu
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doc changes: debug assertions -> overflow checks
This PR is for the following issue:
https://github.com/rust-lang/rust/issues/108131
has some changes in docs
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rperier:donot_suggest_to_use_impl_trait_in_closure_params, r=Noratrieb
Don't suggest the use of `impl Trait` in closure parameter
Fixes #138932
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Test linking and running `no_std` binaries
I looked around, but it seems that we do not have a test that tests a `#![no_std]` + `#![no_main]` binary. So now I've added one. Motivated by discussion in [this Zulip thread](https://rust-lang.zulipchat.com/#narrow/channel/219381-t-libs/topic/Provide.20.60__isPlatformVersionAtLeast.60.20in.20.60std.60.3F/with/507870028).
r? ```@tgross35```
try-job: arm-android
try-job: armhf-gnu
try-job: dist-ohos
try-job: x86_64-mingw-1
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Allow drivers to supply a list of extra symbols to intern
Allows adding new symbols as `const`s in external drivers, desirable in Clippy so we can use them in patterns to replace code like https://github.com/rust-lang/rust/blob/75530e9f72a1990ed2305e16fd51d02f47048f12/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs#L66
The Clippy change adds a couple symbols as a demo, the exact `clippy_utils` API and replacing other usages can be done on the Clippy side to minimise sync conflicts
---
try-job: aarch64-gnu
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rustc_target: update x86_win64 to match the documented calling convention for f128
llvm/llvm-project@5ee1c0b7148571ed9d60e447b66fb0f35de14576 updates llvm to match the documented calling convention to pass f128 indirectly. This change makes us do that on all versions of LLVM, not just starting with LLVM 21.
`@rustbot` label llvm-main
try-job: dist-x86_64-msvc
try-job: dist-x86_64-mingw
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: x86_64-mingw-1
try-job: x86_64-mingw-2
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add `core::intrinsics::simd::{simd_extract_dyn, simd_insert_dyn}`
fixes https://github.com/rust-lang/rust/issues/137372
adds `core::intrinsics::simd::{simd_extract_dyn, simd_insert_dyn}`, which contrary to their non-dyn counterparts allow a non-const index. Many platforms (but notably not x86_64 or aarch64) have dedicated instructions for this operation, which stdarch can emit with this change.
Future work is to also make the `Index` operation on the `Simd` type emit this operation, but the intrinsic can't be used directly. We'll need some MIR shenanigans for that.
r? `@ghost`
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Reuse the index from promoted nodes when coloring executed tasks
https://github.com/rust-lang/rust/pull/138824 did not correctly handle the case where a dep node was promoted green, but later or concurrently executed. It resulted in multiple dep nodes being allocated to it. This fixes that by checking that the node was not previously green in the encoder lock.
This also fixes a race when forcing diagnostic nodes introduced in https://github.com/rust-lang/rust/pull/138824.
https://github.com/rust-lang/rust/pull/138824 should get reverted on beta.
This should fix #139110.
r? `@oli-obk`
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Ensure `swap_nonoverlapping` is really always untyped
This replaces #134954, which was arguably overcomplicated.
## Fixes #134713
Actually using the type passed to `ptr::swap_nonoverlapping` for anything other than its size + align turns out to not work, so this goes back to always erasing the types down to just bytes.
(Except in `const`, which keeps doing the same thing as before to preserve `@RalfJung's` fix from #134689)
## Fixes #134946
I'd previously moved the swapping to use auto-vectorization *on bytes*, but someone pointed out on Discord that the tail loop handling from that left a whole bunch of byte-by-byte swapping around. This goes back to manual tail handling to avoid that, then still triggers auto-vectorization on pointer-width values. (So you'll see `<4 x i64>` on `x86-64-v3` for example.)
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llvm/llvm-project@5ee1c0b7148571ed9d60e447b66fb0f35de14576 updates llvm
to match the documented calling convention to pass f128 indirectly.
@rustbot label llvm-main
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Rollup of 7 pull requests
Successful merges:
- #139502 (fix "still mutable" ice while metrics are enabled)
- #139510 (Rename some `name` variables as `ident`.)
- #139606 (Update compiletest to Edition 2024)
- #139609 (compiletest: don't use stringly paths for `compose_and_run`)
- #139614 (Avoid empty identifiers for delegate params and args.)
- #139626 (Remove unnecessary `mut` in test.)
- #139630 (Miri subtree update)
r? `@ghost`
`@rustbot` modify labels: rollup
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Miri subtree update
r? `@ghost`
a sync is needed to fix the miri-test-libstd failures
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Remove unnecessary `mut` in test.
The value is moved in `pin!()`, so the binding doesn't need to be `mut` itself.
(Rustc doesn't warn about this due to the current hacky implementation of `pin!()`. That is fixed by https://github.com/rust-lang/rust/pull/139114.)
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Avoid empty identifiers for delegate params and args.
Details in individual commits.
r? `@oli-obk`
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compiletest: don't use stringly paths for `compose_and_run`
Eventually I'd like to fully migrate to `camino`'s `{Utf8Path,Utf8PathBuf}` because compiletest assumes UTF-8 paths all over the place, so this is an precursor change to make the migration diff cleaner.
r? `@Kobzol` (or bootstrap/compiler)
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Update compiletest to Edition 2024
r? bootstrap (or compiler)
try-job: x86_64-apple-1
try-job: x86_64-msvc-1
try-jbo: x86_64-mingw-1
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Rename some `name` variables as `ident`.
It bugs me when variables of type `Ident` are called `name`. It leads to silly things like `name.name`. `Ident` variables should be called `ident`, and `name` should be used for variables of type `Symbol`.
This commit improves things by by doing `s/name/ident/` on a bunch of `Ident` variables. Not all of them, but a decent chunk.
r? `@fee1-dead`
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fix "still mutable" ice while metrics are enabled
Resolves "still mutable" ICE discovered by `@matthiaskrgr` here: [#t-docs-rs > metrics intitiative @ 💬](https://rust-lang.zulipchat.com/#narrow/channel/356853-t-docs-rs/topic/metrics.20intitiative/near/510490790)
This was caused by invoking `crate_hash` before the `definitions` struct was frozen here: https://github.com/rust-lang/rust/blob/e643f59f6da3a84f43e75dea99afaa5b041ea6bf/compiler/rustc_interface/src/passes.rs#L951
resolved by moving metrics dumping to occur after `analysis` freezes the definitions
I'm guessing we didn't discover this in CI because the problem only occurs when you try to calculate the crash hash with incremental compilation enabled when it tries to freeze the definitions here: https://github.com/rust-lang/rust/blob/e643f59f6da3a84f43e75dea99afaa5b041ea6bf/compiler/rustc_middle/src/hir/map.rs#L1172
my understanding is that this causes us to freeze the definitions too early in compilation, then we subsequently try to mutate them, likely during `analysis`, and this causes the ICE.
r? `@bjorn3`
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Rustup
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Rollup of 13 pull requests
Successful merges:
- #138167 (Small code improvement in rustdoc hidden stripper)
- #138605 (Clean up librustdoc::html::render to be better encapsulated)
- #139423 (Suppress missing field error when autoderef bottoms out in infer)
- #139449 (match ergonomics: replace `peel_off_references` with a recursive call)
- #139507 (compiletest: Trim whitespace from environment variable names)
- #139530 (Remove some dead or leftover code related to rustc-intrinsic abi removal)
- #139560 (fix title of offset_of_enum feature)
- #139563 (emit a better error message for using the macro incorrectly)
- #139568 (Don't use empty trait names)
- #139580 (Temporarily leave the review rotation)
- #139589 (saethlin is back from vacation)
- #139592 (rustdoc: Enable Markdown extensions when looking for doctests)
- #139599 (Tracking issue template: fine-grained information on style update status)
r? `@ghost`
`@rustbot` modify labels: rollup
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path: add more Windows tests
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The value is moved in pin!().
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Tracking issue template: fine-grained information on style update status
Inspired by some of the communication issues around the stabilization of
`let`-chains, give more fine-grained information about the status of
updating style for any new syntax.
This does not change the process or blockers in any way; it only
*documents* the current state in the tracking issue. For instance, in
the case of `let`-chains, we would have checked the boxes for "Style
team decision" and "(non-blocking) Formatting has been implemented", and
not checked the box for the style guide. That would have then provided
better supporting information for any decisions.
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rustdoc: Enable Markdown extensions when looking for doctests
Fixes #139064.
We should enable these to avoid misinterpreting uses of the extended
syntax as code blocks. This happens in practice with multi-paragraph
footnotes, as discovered in #139064.
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saethlin is back from vacation
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Temporarily leave the review rotation
r? ghost
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Don't use empty trait names
Helps with #137978. Details in individual commits.
r? ```@davidtwco```
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emit a better error message for using the macro incorrectly
fixing: https://github.com/EnzymeAD/rust/issues/185
I feel like it's not a perfect message either, so I'm open to suggestions.
But at the end of the day users will need to read the docs anyway, and emitting
multi-line errors each time this gets triggered can probably become annoying?
r? ``@jieyouxu`` since you've reviewed my frontend work back in the days.
Tracking:
- https://github.com/rust-lang/rust/issues/124509
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fix title of offset_of_enum feature
tracking issue #120141
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Remove some dead or leftover code related to rustc-intrinsic abi removal
r? ```@RalfJung```
PR that removed the ABI: https://github.com/rust-lang/rust/pull/139455
tracking issue: https://github.com/rust-lang/rust/issues/132735
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compiletest: Trim whitespace from environment variable names
When a test contains a directive like `//@ exec-env: FOO=bar`, compiletest currently includes that leading space in the name of the environment variable, so it is defined as ` FOO` instead of `FOO`.
This is an annoying footgun that is pretty much never intended, especially since most other directives *do* trim whitespace. So let's get rid of it by trimming the environment variable name.
Values remain untrimmed, since there could conceivably be a use-case for values with leading space, but perhaps we'll end up trimming values too in the future.
Recently observed in https://github.com/rust-lang/rust/pull/138603#issuecomment-2783709359.
Fixes #132990.
Supersedes #133148.
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try-job: test-various
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match ergonomics: replace `peel_off_references` with a recursive call
This makes it imo quite a bit easier to follow how the binding mode gets calculated.
cc ```@dianne```
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Suppress missing field error when autoderef bottoms out in infer
I see this error repeatedly when doing refactorings, and it's pretty misleading b/c it's not the source of the error.
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Clean up librustdoc::html::render to be better encapsulated
Closes #138567
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GuillaumeGomez:rustdoc-hidden-stripper-improvement, r=camelid
Small code improvement in rustdoc hidden stripper
This is a very minor code improvement following https://github.com/rust-lang/rust/pull/137534. It doesn't change anything about the performance issue.
r? ```@notriddle```
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Ergonomic ref counting: optimize away clones when possible
This PR build on top of https://github.com/rust-lang/rust/pull/134797. It optimizes codegen of ergonomic ref-counting when the type being `use`d is only known to be copy after monomorphization. We avoid codening a clone and generate bitwise copy instead.
RFC: https://github.com/rust-lang/rfcs/pull/3680
Tracking issue: https://github.com/rust-lang/rust/issues/132290
Project goal: https://github.com/rust-lang/rust-project-goals/issues/107
r? `@nikomatsakis`
This PR could better sit on top of https://github.com/rust-lang/rust/pull/131650 but as it did not land yet I've decided to just do minimal changes. It may be the case that doing what I'm doing regress the performance and we may need to go the full route of https://github.com/rust-lang/rust/pull/131650.
cc `@saethlin` in this regard.
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Implement FreeBSD syscall _umtx_op for futex support
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Futex support
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Not all existing tests are converted, I only updated ones that I can
easily find via directive comments.
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