Identify anonymous lifetimes by their DefId in HIR.
`ParamName::Fresh` currently identifies anonymous lifetimes by an `usize` index computed from the number of lifetimes in scope. This makes the behaviour of lowering dependent on the contents of the surrounding item in unpredictable ways.
This PR replaces this index by the `LocalDefId` of the synthetized generic lifetime parameter. This makes obvious which parameter the lifetime corresponds to.
bootstrap: untangle static-libstdcpp & llvm-tools
Previously, the static-libstdcpp setting was tied to llvm-tools such
that enabling the latter always enabled the latter. This seems
unfortunate, since it is entirely reasonable for someone to want to
_not_ statically link stdc++, but _also_ want to build the llvm-tools.
This patch therefore separates the two settings such that neither
implies the other.
On its own, that would change the default behavior in a way that's
likely to surprise users. Specifically, users who build llvm-tools
_likely_ want those tools to be statically compiled against libstdc++,
since otherwise users with older GLIBCXX will be unable to run the
vended tools. So, we also flip the default for the `static-libstdcpp`
setting such that builds always link statically against libstdc++ by
default, but it's _possible_ to opt out.
See also #94719.
Omit stdarch test crates from the rust-src component
These crates aren't necessary for building the standard library. This saves 30MB of disk space.
Fixes#94906
Reduce rustbuild bloat caused by serde_derive
This reduces the size of the `.text` section from 10.1MiB (6.2MiB for just rustbuild code) to 9.3MiB (5.3MiB for just rustbuild code).
This also reduces compile time from ~6.1s for incr recompilation to ~5.6s.
r? `@Mark-Simulacrum`
Add `Atomic*::get_mut_slice`
This PR adds the inverse of `Atomic*::from_mut_slice` introduced in #94384 with the following API:
```rust
// core::sync::atomic
impl Atomic* {
fn get_mut_slice(this: &mut [Self]) -> &mut [*];
}
```
cc `@cuviper`
-----
For now I've used the same tracking issue as `Atomic*::from_mut_slice`, should I open a new one?
Enable conditional checking of values in the Rust codebase
This pull-request enable conditional checking of (well known) values in the Rust codebase.
Well known values were added in https://github.com/rust-lang/rust/pull/94362. All the `target_*` values are taken from all the built-in targets which is why some extra values were needed do be added as they are not (yet ?) defined in any built-in targets.
r? `@Mark-Simulacrum`
The Box in liballoc always has a field for the allocator. It is quite
hard to support both the old and new definition of Box in cg_clif so
this change uses the new definition in this test too.
new lint: `only_used_in_recursion`
changed:
- added `only_used_in_recursion`.
- fixed code that variables are only used in recursion.
- this would not lint when `unused_variable`
This fixes: #8390
-----
changelog: add lint [`only_used_in_recursion`]
Gather LLVM PGO profiles from `rustc-perf` suite on real-world crates
This PR expands the benchmark suite used to gather LLVM PGO profiles in CI from `libcore` to several real-world crates. I hand-picked a few crates, but the list is up for debate.
Previous results that we got from running `syn,cargo,serde` looked pretty [good](https://perf.rust-lang.org/compare.html?start=2631aeef823a9e16d31f999d3f07001e5fcc4b3d&end=abf097afa10dde1aa3d8a1d422724a46aab79bf3).
Running `libcore` + `rustc-perf` with some number of crates is repeated now (and for BOLT it will also be needed), so maybe we can extract it to a bash function?
r? `@Mark-Simulacrum`
This reduces binary size from 9.7MiB (5.8MiB for just rustbuild code)
to 9.3MiB (5.3MiB for just rustbuild code).
This doesn't reduce compile time in a statistically significant way.
This reduces binary size from 10.1MiB (6.2MiB for just rustbuild code)
to 9.7MiB (5.8MiB for just rustbuild code).
This also reduces compile time from ~6.1s for incr recompilation to ~5.6s.
There is still a lot of
unnecessary code due to the toml crate monomorphizing every
deserialization impl 5 times.
Bump portable-simd to shadow Ord
Yon usual bump.
Summary for reference:
- We are moving away from the subjective "directional" nomenclature, so `horizontal_*` becomes `reduce_*`, et cetera.
- In addition, `Simd<Int, N>` now has methods which shadow Ord's methods directly, making those methods behave like the already "overloaded" float methods do.
Rollup of 3 pull requests
Successful merges:
- #94867 (Add regression test for `<i32 as Iterator>::count`)
- #94886 (Update browser-ui-test version used in CI)
- #94894 (Remove needless use of `Into`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Update browser-ui-test version used in CI
I realized that the extension of `assert-text*` commands was generated not completely valid (it stopped at first "success" and moved instead of running all checks). It was fixed in [this PR](https://github.com/GuillaumeGomez/browser-UI-test/pull/280).
We don't use this feature currently in the rustdoc GUI tests, but just in case...
r? ``@notriddle``
Fix exposing fields marked unstable or doc hidden
Closes https://github.com/rust-lang/rust/issues/89837
Work towards https://github.com/rust-lang/rust/issues/89554
Filter fields that are marked `doc(hidden)` or are unstable with that feature turned off. This brings structs and enums into alignment behavior-wise when emitting warning/errors about pattern exhaustiveness/reachability.
cc `@Nadrieril`
