[beta] backports
- ensure the parent path's existence on `x install` #116349
- Remove `cfg_match` from the prelude #117162
- improve and fix `x install` #117383
- Update to LLVM 17.0.4 #117436
r? cuviper
Fix: Write access check of `prefix` and `sysconfdir`
when DESTDIR is present.
Improvement: Instead of repeatedly reading `DESTDIR` within
each `fn prepare_dir` usage, read it once and pass it to
the `fn prepare_dir`.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
(cherry picked from commit 4b14048d6037a2da5601952a2dd36fe67d04218b)
[beta] backports and stage0 bump
- Bump stage0 to released stable compiler
- Hide host effect params from docs #116670
- Fix a performance regression in obligation deduplication. #116826
- Make `#[repr(Rust)]` and `#[repr(C)]` incompatible with one another #116829
- Update to LLVM 17.0.3 #116840
- Disable effects in libcore again #116856
- revert rust-lang/rust#114586#116879
r? cuviper
Commit 8378487 from #114611 changed the location of an obligation
deduplication step in `opt_normalize_projection_type`. This meant that
deduplication stopped happening on one path where it was still
necessary, causing a couple of drastic performance regressions.
This commit moves the deduplication back to the old location. The good
news is that #114611 had four commits and 8378487 was of minimal
importance, so the perf benefits from that PR remain.
Fixes#116780, #116797.
(cherry picked from commit 91f2fbc867bfc31f2e103b09e605c61f1a450b33)
This should fix running tests on the emscripten target. In the future
it's expected we'll want to entirely remove this builder since it's a
tier 2 target, but for this initially beta-targeted patch keeping the
changes minimal is preferred.
Pass `-jN` from Make to `BOOTSTRAP_ARGS`
Enables the same functionality as `x -jN` in Make by passing the `-jN` arg from Make to the `BOOTSTRAP_ARGS` if it is specified.
Document that Instant may or may not include system-suspend time
Since people are still occasionally surprised by this let's make it more explicit. This doesn't add any new guarantees, only documents the status quo.
Related issues: #87906#79462
Assorted improvements for `rustc_middle::mir::traversal`
r? `@cjgillot`
I'm not _entirely_ sure about all changes, although I do like all of them. If you'd like I can drop some commits. Best reviewed on a commit-by-commit basis, I think, since they are fairly isolated.
rustdoc: speed up processing of cross-crate fns to fix a perf regression
* The first commit doesn't affect perf but get's rid of a `.clone()` and a bunch of lines of code. I can drop it if you'd like me to
* The second commit, *“reduce the amount of `asyncness` query executions”*, addresses the perf regression introduced in #116084
r? `@ghost`
Prototype using const generic for simd_shuffle IDX array
cc https://github.com/rust-lang/rust/issues/85229
r? `@workingjubilee` on the design
TLDR: there is now a `fn simd_shuffle_generic<T, U, const IDX: &'static [u32]>(x: T, y: T) -> U;` intrinsic that allows replacing
```rust
simd_shuffle(a, b, const { stuff })
```
with
```rust
simd_shuffle_generic::<_, _, {&stuff}>(a, b)
```
which makes the compiler implementations much simpler, if we manage to at some point eliminate `simd_shuffle`.
There are some issues with this today though (can't do math without bubbling it up in the generic arguments). With this change, we can start porting the simple cases and get better data on the others.
Rollup of 6 pull requests
Successful merges:
- #112123 (fix(suggestion): insert projection to associated types)
- #116024 (Implement Region for smir)
- #116030 (run abi/compatibility test against a whole bunch of targets)
- #116216 (ci: upgrade to crosstool-ng 1.26.0)
- #116241 (Add Exclusive forwarding impls (FnOnce, FnMut, Generator))
- #116263 (More fixes for running the test suite on a bare metal target)
r? `@ghost`
`@rustbot` modify labels: rollup
More fixes for running the test suite on a bare metal target
This PR adds more fixes needed to run the test suite on bare metal targets (in this case, without unwinding and with static relocations). There is no CI job exercising tests without unwinds, but I can confirm this worked in Ferrocene's CI.
ci: upgrade to crosstool-ng 1.26.0
This PR upgrades our builders from crosstool-ng 1.25.0 to 1.26.0. Except for LoongArch64 and RISC-V 64, which have minor version upgrades, other architectures have not changed.
