Some combination of recent Rust changes (between 3d86494a0d and
aa57e46e24 from what I can tell) and changes in LLVM 21 (not recently,
as best I can tell) have caused this test to start showing the behavior
we want, so it's time to move this test to a proper place and mark it as
fixed on LLVM 21.
Add `generic_arg_infer` test
I think most of our existing tests around behaviour of repeat expr inferred counts fail by not having enough inference progress, rather than by having enough inference progress but the element not actually implementing `Copy`.
Support `opaque_types_defined_by` for `SyntheticCoroutineBody`
We create a synthetic MIR body for the `AsyncFnOnce` impl for async closures. That body goes through all passes that a regular body does, including promotion.
Promotion sometimes requires computing that the type of an rvalue is `Freeze`, which requires computing the typing env of a body. This requires calling `opaque_types_defined_by` on the body's def id, which leads to an ICE today since we don't expect that query to be called for synthetic bodies.
While we could fix this by, for example, computing the typeck root of the body before calling a `TypingEnv` constructor, I think it's appropriate to do a more general fix here since I think it's reasonable that other passes might do analysis too.
Fixesrust-lang/rust#141466
r? ```@lcnr``` or ```@oli-obk```
Use more detailed spans in dyn compat errors within bodies
Within bodies we can employ the full dyn compat check query instead of only doing the minimal hir ty lowerer one. This in turn gives us better spans and also silences many follow-up duplicate or bogus errors.
alternative to https://github.com/rust-lang/rust/pull/141439, tho I think I could turn the delayed bug from that one into a bug now instead of having an error code path.
r? `@compiler-errors`
cc `@fmease`
dist: make sure llvm-project submodule is present
Zero-config `x install` fails when bootstrap tries to copy files from the LLVM submodule because it's not properly initialized/handled. This diff handles that.
Fixes https://github.com/rust-lang/rust/issues/141393
Remove out-of-date `noop_*` names.
`mut_visit.rs` has a single function with a `noop_` prefix: `noop_filter_map_expr`. This commit renames as `walk_filter_map_expr` which is consistent with other functions in this file.
The commit also removes out-of-date comments that refer to `noop_*` methods.
r? `@petrochenkov`
bootstrap: translate Windows paths in a way that works for both Cygwin and MSYS2
Cygwin defaults to rooting Windows paths in /cygdrive/X, while MSYS2 configures them to be /X. Regardless of configuration, drives are always accessible as /proc/cygdrive/X, so use that.
If there are other shells on Windows that are supported and use /X style paths, perhaps something more complicated needs to be done.
r? `@jieyouxu`
`@Berrysoft` `@mati865`
Improve `ambiguous_wide_pointer_comparisons` lint compare diagnostics
This PR improves the `ambiguous_wide_pointer_comparisons` lint compare diagnostics: `cmp`/`partial_cmp`, but also the operators `<`/`>`/`>=`/`<=`, by:
1. removing the reference to `std::ptr::addr_eq` which only works for equality
2. and adding an `#[expect]` suggestion for keeping the current behavior
Fixesrust-lang/rust#141510
Fix CI for unrolled builds on the `try-perf` branch
That branch is essentially the same as the `try` branch, it also needs S3 permissions. While at it, I cleaned up secret loading a bit.
Long term, we should move rollup unrolling from rustc-perf to bors, so that we can have only a single try branch.
The AWS Terraform configuration will also have to be changed to provide the secrets (the `bors` environment) also for the `try-perf` branch.
r? `@marcoieni`
`mut_visit.rs` has a single function with a `noop_` prefix:
`noop_filter_map_expr`. This commit renames as `walk_filter_map_expr`
which is consistent with other functions in this file.
The commit also removes out-of-date comments that refer to `noop_*`
methods.
That branch is essentially the same as the `try` branch, it also needs S3 permissions.
Long term, we should move rollup unrolling from rustc-perf to bors, so that we can have only a single try branch.
