rustc_metadata: Stop passing `CrateMetadataRef` by reference (step 1)
It's already a (fat) reference.
Double referencing it creates lifetime issues for its methods that want to return iterators.
---
Extracted from https://github.com/rust-lang/rust/pull/92245 for a perf run.
The PR changes a lot of symbol names due to function signature changes, so it's hard to do differential profiling, let's spend some machine time instead.
[code coverage] Fix missing dead code in modules that are never called
The issue here is that the logic used to determine which CGU to put the dead function stubs in doesn't handle cases where a module is never assigned to a CGU (which is what happens when all of the code in the module is dead).
The partitioning logic also caused issues in #85461 where inline functions were duplicated into multiple CGUs resulting in duplicate symbols.
This commit fixes the issue by removing the complex logic used to assign dead code stubs to CGUs and replaces it with a much simpler model: we pick one CGU to hold all the dead code stubs. We pick a CGU which has exported items which increases the likelihood the linker won't throw away our dead functions and we pick the smallest to minimize the impact on compilation times for crates with very large CGUs.
Fixes#91661Fixes#86177Fixes#85718Fixes#79622
r? ```@tmandry```
cc ```@richkadel```
This PR is not urgent so please don't let it interrupt your holidays! 🎄🎁
Welcome opaque types into the fold
r? ```@nikomatsakis``` because idk who else to bug on the type_op changes
The commits have explanations in them. The TLDR is that
* 5c46002273 stops the "recurse and replace" scheme that replaces opaque types with their canonical inference var by just doing that ahead of time
* bdeeb07bf6 does not affect anything on master afaict, but since opaque types generate obligations when instantiated, and lazy TAIT instantiates opaque types *everywhere*, we need to properly handle obligations here instead of just hoping no problematic obligations ever come up.
Add `std::error::Report` type
This is a continuation of https://github.com/rust-lang/rust/pull/90174, split into a separate PR since I cannot push to ```````@seanchen1991``````` 's fork
Make rlib metadata strip works with MIPSr6 architecture
Because MIPSr6 has many differences with previous MIPSr2 arch, the previous rlib metadata stripping code in `rustc_codegen_ssa` is only for MIPSr2/r3/r5 (which share the same elf e_flags).
This commit fixed this problem. It makes `rustc_codegen_ssa` happy when compiling rustc for MIPSr6 target or hosts.
e_flags REF: e356027016/llvm/include/llvm/BinaryFormat/ELF.h (L562)
Simpilfy thread::JoinInner.
`JoinInner`'s `native` field was an `Option`, but that's unnecessary.
Also, thanks to `Arc::get_mut`, there's no unsafety needed in `JoinInner::join()`.
Migrate rustdoc from Tera to Askama
See #84419.
Should probably get a benchmarking run to verify if it has the intended effect on rustdoc performance.
cc `@jsha` `@jyn514.`
`manual_memcpy` fix
fixes#8160
Ideally this would work with `VecDeque`, but the current interface is unsuitable for it. At a minimum something like `range_as_slices` would be needed.
changelog: Don't lint `manual_memcpy` on `VecDeque`
changelog: Suggest `copy_from_slice` for `manual_memcpy` when applicable
Some test code cleanup
changelog: none
Mainly moves /clippy_workspace_tests into /tests and combines the two dogfood tests which can't run concurrently.
`README`: document that Clippy may change codegen
Currently, Clippy does not guarantee the same codegen will be produced.
Therefore, it should not be used as an universal replacement for `rustc`.
See https://github.com/rust-lang/rust-clippy/issues/8035.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
fixes#8035
changelog: document that Clippy may change codegen
Fix `deref_addrof`
fixes#8247
This would supersede #8259
changelog: Don't lint `deref_addrof` when the dereference and the borrow occur in different contexts
Update AsmArgs field visibility for rustfmt
To more easily allow rustfmt to format the ``asm!`` macro as specified in
rust-dev-tools/fmt-rfcs#152 certain fields are made public.
r? ```@calebcartwright```
Eliminate "boxed" wording in `std::error::Error` documentation
In commit 29403ee, documentation for the methods on `std::any::Any` was
modified so that they referred to the concrete value behind the trait
object as the "inner" value. This is a more accurate wording than
"boxed": while putting trait objects inside boxes is arguably the most
common use, they can also be placed behind other pointer types like
`&mut` or `std::sync::Arc`.
This commit does the same documentation changes for `std::error::Error`.
Add note about upstream commit musl-patch-configure.diff is derived from
The patch landed in upstream over the weekend so I'm adding a note so we can more easily track when our patch file can be removed.
Improve documentation for File::options to give a more likely example
`File::options().read(true).open(...)` is equivalent to just
`File::open`. Change the example to set the `append` flag instead, and
then change the filename to something more likely to be written in
append mode.
rustdoc: Display "private fields" instead of "fields omitted"
Also:
* Always use `/* */` block comments
* Use the same message everywhere, rather than sometimes prefixing
with "some"
When I first read rustdoc docs, I was confused why the fields were being
omitted. It was only later that I realized it was because they were
private. It's also always bothered me that rustdoc sometimes uses `//`
and sometimes uses `/*` comments for these messages, so this change
makes them all use `/*`.
Technically, I think fields can be omitted if they are public but
`doc(hidden)` too, but `doc(hidden)` is analogous to privacy. It's
really just used to emulate "doc privacy" when -- because of technical
limitations -- an item has to be public. So I think it's fine to include
this under the category of "private fields".
r? ```@jsha```
Error when selected impl is not const in constck
Catches bad things when checking a `default_method_body_is_const` body, such as:
```rust
self.map(/* .. */).is_sorted();
```
When `Map` does not yet have a `const` `impl` for `Iterator`.
r? ```@oli-obk```
Store a `Symbol` instead of an `Ident` in `VariantDef`/`FieldDef`
The field is also renamed from `ident` to `name`. In most cases,
we don't actually need the `Span`. A new `ident` method is added
to `VariantDef` and `FieldDef`, which constructs the full `Ident`
using `tcx.def_ident_span()`. This method is used in the cases
where we actually need an `Ident`.
This makes incremental compilation properly track changes
to the `Span`, without all of the invalidations caused by storing
a `Span` directly via an `Ident`.
