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use `splat` for the aarch64/arm dup intrinsics
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This picks up a fix in `rustc_apfloat` [1] that resolves a problem with
`fma`.
[1]: https://github.com/rust-lang/rustc_apfloat/releases/tag/rustc_apfloat-v0.2.3%2Bllvm-462a31f5a5ab
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Disable docs for `compiler-builtins` and `sysroot`
Bootstrap already had a manual doc filter for the `sysroot` crate, but
other library crates keep themselves out of the public docs by setting
`[lib] doc = false` in their manifest. This seems like a better solution
to hide `compiler-builtins` docs, and removes the `sysroot` hack too.
Fixes rust-lang/rust#143215 (after backport)
```@rustbot``` label beta-nominated
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Win: Use exceptions with empty data for SEH panic exception copies instead of a new panic
For unwinding with SEH, we currently construct a C++ exception with the panic data. Being a regular C++ exception, it interacts with the C++ exception handling machinery and can be retrieved via `std::current_exception`, which needs to copy the exception. We can't support that, so we panic, which throws another exception, which the C++ runtime tries to copy and store into the exception_ptr, which panics again, which causes the C++ runtime to store a `bad_exception` instance.
However, this doesn't work because the panics thrown by the copy function will be dropped without being rethrown, and causes unnecessary log spam in stderr. Fix this by directly throwing an exception without data, which doesn't cause log spam and can be dropped without being rethrown.
Fixes rust-lang/rust#143623.
This also happens to be the solution ``@dpaoliello`` suggested, though I'm not sure how to handle the commit credit attribution.
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Constify `Fn*` traits
r? `@compiler-errors` `@fee1-dead`
this should unlock a few things. A few `const_closures` tests have broken even more than before, but that feature is marked as incomplete anyway
cc rust-lang/rust#67792
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Fix VxWorks build errors
fixes rust-lang/rust#143442
r? ``@Noratrieb``
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docs: document trait upcasting rules in `Unsize` trait
The trait upcasting feature stabilized in 1.86 added new `Unsize` implementation, but this wasn't reflected in the trait's documentation.
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Add checking for unnecessary delims in closure body
Fixes #136741
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#141996 (Fix `proc_macro::Ident`'s handling of `$crate`)
- rust-lang/rust#142950 (mbe: Rework diagnostics for metavariable expressions)
- rust-lang/rust#143011 (Make lint `ambiguous_glob_imports` deny-by-default and report-in-deps)
- rust-lang/rust#143265 (Mention as_chunks in the docs for chunks)
- rust-lang/rust#143270 (tests/codegen/enum/enum-match.rs: accept negative range attribute)
- rust-lang/rust#143298 (`tests/ui`: A New Order [23/N])
- rust-lang/rust#143396 (Move NaN tests to floats/mod.rs)
- rust-lang/rust#143398 (tidy: add support for `--extra-checks=auto:` feature)
- rust-lang/rust#143644 (Add triagebot stdarch mention ping)
r? `@ghost`
`@rustbot` modify labels: rollup
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Move NaN tests to floats/mod.rs
This PR moves NaN tests to `floats/mod.rs`, as discussed in rust-lang/rust#141726. Since this is my first PR against Rust, I'm keeping it as small as possible, but I intend to work my way through the remaining tests and can do that work in this PR if that's preferable.
r? RalfJung
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Mention as_chunks in the docs for chunks
and `as_rchunks_mut` from `rchunks_exact_mut`, and such.
As suggested in https://github.com/rust-lang/rust/issues/76354#issuecomment-3015376438 (but does not close that issue).
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Fix `proc_macro::Ident`'s handling of `$crate`
This PR is addresses a few minor bugs, all relating to `proc_macro::Ident`'s support for `$crate`. `Ident` currently supports `$crate` (as can be seen in the `mixed-site-span` test), but:
* `proc_macro::Symbol::can_be_raw` is out of sync with `rustc_span::Symbol::can_be_raw`
* former doesn't cover `$crate` while the latter does cover `kw::DollarCrate`
* `Ident::new` rejects `$crate`
* This conflicts with the [reference definition](https://doc.rust-lang.org/nightly/reference/macros-by-example.html#r-macro.decl.meta.specifier) of `ident` which includes `$crate`.
* This also conflicts with the documentation on [`Display for Ident`](https://doc.rust-lang.org/proc_macro/struct.Ident.html#impl-Display-for-Ident) which says the output "should be losslessly convertible back into the same identifier".
This PR fixes the above issues and extends the `mixed-site-span` test to exercise these fixed code paths, as well as validating the different possible spans resolve `$crate` as expected (for both the new and old `$crate` construction code paths).
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Add opaque TypeId handles for CTFE
Reopen of https://github.com/rust-lang/rust/pull/142789#issuecomment-3053155043 after some bors insta-merge chaos
r? `@RalfJung`
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Add a setsid method to the CommandExt trait so that callers can create
a process in a new session and process group whilst still using the
POSIX spawn fast path.
Co-Authored-By: Harvey Hunt <harveyhunt@fb.com>
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Update the `compiler-builtins` subtree
Update the Josh subtree to https://github.com/rust-lang/compiler-builtins/commit/8aba4c899ee8.
r? `@ghost`
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This allows efficient implementations for random sources that generate a
word at a time.
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- Implement timeout support for read, write and connect.
- A software implementation using Instant.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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This enable removing the `start` field, so `BorrowedCursor` fits in a
single register. Because `written` is almost always used in difference
with another call, this changes nothing else in practice.
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I assume that this method was there for completeness, but there is
hardly any useful use of it: the buffer it gave was not always connected
to the start of the cursor and its use required `unsafe` anyway to mark
the bytes as initialized.
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This method was not really useful: at no point one would only need to
read the initialized part of the cursor without mutating it.
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clippy fix: indentation
Fixes indentation of markdown comments.
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Bootstrap already had a manual doc filter for the `sysroot` crate, but
other library crates keep themselves out of the public docs by setting
`[lib] doc = false` in their manifest. This seems like a better solution
to hide `compiler-builtins` docs, and removes the `sysroot` hack too.
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instead of a new panic
For unwinding with SEH, we currently construct a C++ exception with the
panic data. Being a regular C++ exception, it interacts with the C++
exception handling machinery and can be retrieved via
`std::current_exception`, which needs to copy the exception. We can't
support that, so we panic, which throws another exception, which the
C++ runtime tries to copy and store into the exception_ptr, which panics
again, which causes the C++ runtime to store a `bad_exception` instance.
However, this doesn't work because the panics thrown by the copy
function will be dropped without being rethrown, and causes unnecessary
log spam in stderr. Fix this by directly throwing an exception without
data, which doesn't cause log spam and can be dropped without being
rethrown.
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Pull recent changes from https://github.com/rust-lang/rust via Josh.
Upstream ref: 040e2f8b9ff2d76fbe2146d6003e297ed4532088
Filtered ref: cf4d00a666607e356e410a820ae07eeba28a9b53
This merge was created using https://github.com/rust-lang/josh-sync.
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This updates the rust-version file to 040e2f8b9ff2d76fbe2146d6003e297ed4532088.
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Make `Default` const and add some `const Default` impls
Full list of `impl const Default` types:
- ()
- bool
- char
- std::ascii::Char
- usize
- u8
- u16
- u32
- u64
- u128
- i8
- i16
- i32
- i64
- i128
- f16
- f32
- f64
- f128
- std::marker::PhantomData<T>
- Option<T>
- std::iter::Empty<T>
- std::ptr::Alignment
- &[T]
- &mut [T]
- &str
- &mut str
- String
- Vec<T>
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Simplify num formatting helpers
Noticed `ilog10` was being open-coded when looking at this diff: https://github.com/rust-lang/rust/pull/143423/files/85d6768f4c437a0f3799234df20535ff65ee17c2..76d9775912ef3a7ee145053a5119538bf229d6e5#diff-6be9b44b52d946ccac652ddb7c98146a01b22ea0fc5737bc10db245a24796a45
That, and two other small cleanups 😁
(should probably go through perf just to make sure it doesn't regress formatting)
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