Subtree sync for rustc_codegen_cranelift
The main highlight this time is debuginfo for statics. Not all types are supported yet. Those that aren't supported are represented as `[u8; mem::size_of::<T>()]` instead.
r? `@ghost`
`@rustbot` label +A-codegen +A-cranelift +T-compiler
... even when the existential has the least RegionVid.
universal regions (of root universe) > placeholders > existentials
The previous behavior, that chooses the minimal RegionVid index, naturally prefers universal regions over others
because they always have the least RegionVids, but there was no guranteed ordering between placeholders and existentials.
Suggest correct path in include_bytes!
`include_bytes!` paths are relative, and I'm often not sure how nested is the `.rs` file that I'm editing, so I have to guess the number of `"../.."`. This change searches `..` and `../..` for the given file and offers corrected path as a suggestion.
I wasn't sure how to get the right span, and how to properly escape it.
```text
error: couldn't read src/file.txt: No such file or directory (os error 2)
--> src/main.rs:2:13
|
2 | let x = include_bytes!("file.txt");
| ^^^^^^^^^^^^^^^----------^
| |
| help: it's in a parent directory: `"../../file.txt"`
```
Delegation: fix ICE on wrong `Self` instantiation
fixes https://github.com/rust-lang/rust/issues/119921
fixes https://github.com/rust-lang/rust/issues/119919
There is no way to instantiate `Self` param for caller in delegation item if
1. callee is a trait method && callee contains `Self` param
2. delegation item isn't an associative item
In general, we can consider `Self` param as independent type param in these cases:
```rust
trait Trait {
fn foo(_: Option<&Self>) {...}
}
reuse Trait::foo;
// will be desugared to:
fn foo<T: Trait>(x: Option<&T>) { Trait::foo(x) }
```
But this requires early bound parameters support. For now, I suggest banning such cases to avoid ICE's.
r? ``@petrochenkov``
CFI: Fix drop and drop_in_place
Fix drop and drop_in_place by transforming self of drop and drop_in_place methods into a Drop trait objects.
This was split off from https://github.com/rust-lang/rust/pull/116404.
cc `@compiler-errors` `@workingjubilee`
CFI: Enable KCFI testing of run-pass tests
This enables KCFI-based testing for all the CFI run-pass tests in the suite today. We can add the test header on top of in-flight CFI tests once they land. This is becoming more important as we get closer to leveraging CFI's multiple type attachment feature, as that is where the implementations will have a divergence.
It also enables KCFI as a sanitizer for x86_64 and aarch64 Linux to make this possible. The sanitizer should likely be available for all aarch64, x86_64, and riscv targets, but that isn't critical for initial testing.
