tidy: add support for `--extra-checks=auto:` feature
in preparation for rust-lang/rust#142924
also heavily refactored the parsing of the `--extra-checks` argument to warn about improper usage.
cc ```@GuillaumeGomez```
r? ```@Kobzol```
`rustc_pattern_analysis`: always check that deref patterns don't match on the same place as normal constructors
In rust-lang/rust#140106, deref pattern validation was tied to the `deref_patterns` feature to temporarily avoid affecting perf. However:
- As of rust-lang/rust#143414, box patterns are represented as deref patterns in `rustc_pattern_analysis`. Since they can be used by enabling `box_patterns` instead of `deref_patterns`, it was possible for them to skip validation, resulting in an ICE. This fixes that and adds a regression test.
- External tooling (e.g. rust-analyzer) will also need to validate matches containing deref patterns, which was not possible. This fixes that by making `compute_match_usefulness` validate deref patterns by default.
In order to avoid doing an extra pass for anything with patterns, the second commit makes `RustcPatCtxt` keep track of whether it encounters a deref pattern, so that it only does the check if so. This is purely for performance. If the perf impact of the first commit is negligible and the complexity cost introduced by the second commit is significant, it may be worth dropping the latter.
r? `@Nadrieril`
configure.py: Write last key in each section
The loop that writes the keys in each section of bootstrap.toml accumulates all the commented lines before a given key and emits them when it reaches the next key in the section. This ends up dropping lines accumulated for the last key
Fixesrust-lang/rust#143605
Simplify LLVM bitcode linker in bootstrap and add tests for it
This PR tries to simplify the `LlvmBitcodeLinker` step a little bit, and add tests for it. It also adds tests for `LldWrapper`.
r? `@jieyouxu`
now does proper parsing of git's output and falls back to
assuming all files are modified if `git` doesn't work.
accepts a closure so extensions can be checked.
Update intro blurb in `wasm32-wasip1` docs
I was reading over this documentation in light of the effort to enlist more maintainers for Tier 2 targets and figured it was time for a refresh of this documentation now that historical renames/etc have all become a thing of the past. No new major changes to this documentation, mostly just wanted to update it and reflect the modern status quo for this target.
Don't mark `#[target_feature]` safe fns as unsafe in rustdoc JSON.
Fixes https://github.com/rust-lang/rust/issues/142655 by explicitly checking whether functions are safe but using `#[target_feature]`, instead of relying on the `FnHeader::is_unsafe()` method which considers such functions unsafe.
I don't believe this merits a bump of the rustdoc JSON `FORMAT_VERSION` constant, since the format is unchanged and this is just a small bugfix.
r? aDotInTheVoid
That step should be responsible for building the tool, not performing side-effects. Also, only copy the tool to the `self-contained` directory, not to the `rustlib/<target>/bin` directory.
Use `join_with_double_colon` in `write_shared.rs`.
For consistency. Also, it's faster because `join_with_double_colon` does a better job estimating the allocation size than `join` from `itertools`.
r? `@camelid`
The mips64-unknown-linux-muslabi64 target is currently rather broken,
but I'm working on getting it fixed so that it can at least be used
again.
While I can't commit to maintaining the LLVM side of this target, I
don't mind looking into any other MIPS or musl-related issues that arise
with this target.
Signed-off-by: Jens Reidel <adrian@travitia.xyz>
The loop that writes the keys in each section of bootstrap.toml
accumulates all the commented lines before a given key and emits them
when it reaches the next key in the section. This ends up dropping
lines accumulated for the last key
I was reading over this documentation in light of the effort to enlist
more maintainers for Tier 2 targets and figured it was time for a
refresh of this documentation now that historical renames/etc have all
become a thing of the past. No new major changes to this documentation,
mostly just wanted to update it and reflect the modern status quo for
this target.
Allow custom default address spaces and parse `p-` specifications in the datalayout string
Some targets, such as CHERI, use as default an address space different from the "normal" default address space `0` (in the case of CHERI, [200 is used](https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-877.pdf)). Currently, `rustc` does not allow to specify custom address spaces and does not take into consideration [`p-` specifications in the datalayout string](https://llvm.org/docs/LangRef.html#langref-datalayout).
This patch tries to mitigate these problems by allowing targets to define a custom default address space (while keeping the default value to address space `0`) and adding the code to parse the `p-` specifications in `rustc_abi`. The main changes are that `TargetDataLayout` now uses functions to refer to pointer-related informations, instead of having specific fields for the size and alignment of pointers in the default address space; furthermore, the two `pointer_size` and `pointer_align` fields in `TargetDataLayout` are replaced with an `FxHashMap` that holds info for all the possible address spaces, as parsed by the `p-` specifications.
The potential performance drawbacks of not having ad-hoc fields for the default address space will be tested in this PR's CI run.
r? workingjubilee
Disable download-rustc for library profile
The feature currently completely breaks `x test` (rust-lang/rust#142505), core functionality of working on the standard library. Therefore it should be disabled by default until that problem is fixed. Having to wait a bit longer for a check build is nothing compared to completely mysterious build errors when testing.
