Report opaque type mismatches directly during borrowck of the function instead of within the `type_of` query.
This allows us to only store a single hidden type per opaque type instead of having to store one per set of substitutions.
r? `@compiler-errors`
This does not affect diagnostics, because the diagnostic messages are exactly the same.
This allows profiling costly arguments to be recorded only when `-Zself-profile-events=args` is on: using a closure that takes an `EventArgRecorder` and call its `record_arg` or `record_args` methods.
Use gender neutral terms
#95508 was not executed well, but it did find a couple of legitimate issues: some uses of unnecessarily gendered language, and some typos. This PR fixes (properly) the legitimate issues it found.
Stop flagging unexpected inner attributes as outer ones in certain diagnostics
Fixes#94340.
In the issue to-be-fixed I write that the general message _an inner attribute is not permitted in this context_ should be more specific noting that the “context” is the `include` macro. This, however, cannot be achieved without touching a lot of things and passing a flag to the `parse_expr` and `parse_item` calls in `expand_include`. This seems rather hacky to me. That's why I left it as it. `Span::from_expansion` does not apply either AFAIK.
`@rustbot` label A-diagnostics T-compiler
Bump bootstrap compiler to 1.61.0 beta
This PR bumps the bootstrap compiler to the 1.61.0 beta. The first commit changes the stage0 compiler, the second commit applies the "mechanical" changes and the third and fourth commits apply changes explained in the relevant comments.
r? `@Mark-Simulacrum`
By heap allocating the argument within `NtPath`, `NtVis`, and `NtStmt`.
This slightly reduces cumulative and peak allocation amounts, most
notably on `deep-vector`.
Check that all hidden types are the same and then deduplicate them.
fixes#95538
This used to trigger a sanity check. Now we accept that there may be multiple places where a hidden type is constrained and we merge all of these at the end.
Ideally we'd merge eagerly, but that is a larger refactoring that I don't want to put into a backport
New mir-opt deref_separator
This adds a new mir-opt that split certain derefs into this form:
`let x = (*a.b).c;` to => `tmp = a.b; let x = (*tmp).c;`
Huge thanks to ``@oli-obk`` for his patient mentoring.
interp/validity: enforce Scalar::Initialized
This is a follow-up to https://github.com/rust-lang/rust/pull/94527, to also account for the new kind of `Scalar` layout inside the validity checker.
r? `@oli-obk`
enhance `ConstGoto` mir-opt by moving up `StorageDead` statements
From the `FIXME` in the implementation of `ConstGoto` miropt. We can move `StorageDead` statements up to the predecessor. This can expand the scope of application of this opt.
interp: pass TyCtxt to Machine methods that do not take InterpCx
This just seems like something you might need, so let's consistently have it.
One day we might have to add `ParamEnv` as well, though that seems less likely (and in Miri you can always use `reveal_all` anyway). It might make sense to have a type that packages `TyCtxt` and `ParamEnv`, this pairing occurs quite frequently in rustc...
r? `@oli-obk`
Currently it's called in `parse_tt` every time a match rule is invoked.
This commit moves it so it's called instead once per match rule, in
`compile_declarative_macro. This is a performance win.
The commit also moves `compute_locs` out of `TtParser`, because there's
no longer any reason for it to be in there.
Let CTFE to handle partially uninitialized unions without marking the entire value as uninitialized.
follow up to #94411
To fix https://github.com/rust-lang/rust/issues/69488 and by extension fix https://github.com/rust-lang/rust/issues/94371, we should stop treating types like `MaybeUninit<usize>` as something that the `Scalar` type in the interpreter engine can represent. So we add a new field to `abi::Primitive` that records whether the primitive is nested in a union
cc `@RalfJung`
r? `@ghost`
