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Add a new ABI to support cmse_nonsecure_call
This adds support for the `cmse_nonsecure_call` feature to be able to perform non-secure function call.
See the discussion on Zulip [here](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Support.20for.20callsite.20attributes/near/223054928).
This is a followup to #75810 which added `cmse_nonsecure_entry`. As for that PR, I assume that the changes are small enough to not have to go through a RFC but I don't mind doing one if needed 😃
I did not yet create a tracking issue, but if most of it is fine, I can create one and update the various files accordingly (they refer to the other tracking issue now).
On the Zulip chat, I believe `@jonas-schievink` volunteered to be a reviewer 💯
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Also switches on formatting of the mir build module
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This commit adds a new ABI to be selected via `extern
"C-cmse-nonsecure-call"` on function pointers in order for the compiler to
apply the corresponding cmse_nonsecure_call callsite attribute.
For Armv8-M targets supporting TrustZone-M, this will perform a
non-secure function call by saving, clearing and calling a non-secure
function pointer using the BLXNS instruction.
See the page on the unstable book for details.
Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
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When `capture_disjoint_fields` is not enabled, checking if the root variable
binding is mutable would suffice.
However with the feature enabled, the captured place might be mutable
because it dereferences a mutable reference.
This PR computes the mutability of each capture after capture analysis
in rustc_typeck. We store this in `ty::CapturedPlace` and then use
`ty::CapturedPlace::mutability` in mir_build and borrow_check.
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Fix abi for wasm-bindgen
Hopefully fixes https://github.com/rust-lang/rust/issues/81386. `@alexcrichton` can you confirm this fixes wasm-bindgen?
r? `@alexcrichton`
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Improve diagnostics for Precise Capture
This is just the capture analysis part and borrow checker logging will updated as part of rust-lang/project-rfc-2229#8
Closes rust-lang/project-rfc-2229#22
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Refractor a few more types to `rustc_type_ir`
In the continuation of #79169, ~~blocked on that PR~~.
This PR:
- moves `IntVarValue`, `FloatVarValue`, `InferTy` (and friends) and `Variance`
- creates the `IntTy`, `UintTy` and `FloatTy` enums in `rustc_type_ir`, based on their `ast` and `chalk_ir` equilavents, and uses them for types in the rest of the compiler.
~~I will split up that commit to make this easier to review and to have a better commit history.~~
EDIT: done, I split the PR in commits of 200-ish lines each
r? `````@nikomatsakis````` cc `````@jackh726`````
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This reverts commit 903c553f4a2fc8344edac0da565e6c1a7fad4b39.
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This reverts commit 4d2766e3524129f0d7ec6ad34c4045150ad4f978.
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This reverts commit e7a056fe20f7ec5a475923ff2f4eda8ca9e1a74b.
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Enforce that query results implement Debug
Currently, we require that query keys implement `Debug`, but we do not do the same for query values. This can make incremental compilation bugs difficult to debug - there isn't a good place to print out the result loaded from disk.
This PR adds `Debug` bounds to several query-related functions, allowing us to debug-print the query value when an 'unstable fingerprint' error occurs. This required adding `#[derive(Debug)]` to a fairly large number of types - hopefully, this doesn't have much of an impact on compiler bootstrapping times.
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Prevent query cycles in the MIR inliner
r? `@eddyb` `@wesleywiser`
cc `@rust-lang/wg-mir-opt`
The general design is that we have a new query that is run on the `validated_mir` instead of on the `optimized_mir`. That query is forced before going into the optimization pipeline, so as to not try to read from a stolen MIR.
The query should not be cached cross crate, as you should never call it for items from other crates. By its very design calls into other crates can never cause query cycles.
This is a pessimistic approach to inlining, since we strictly have more calls in the `validated_mir` than we have in `optimized_mir`, but that's not a problem imo.
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Generate metadata by iterating on DefId instead of traversing the HIR tree 1/N
Sample from #80347.
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for a type
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return position
Abi::ScalarPair is only ever used for types that don't have a stable
layout anyway so this doesn't break any FFI. It does however reduce the
amount of special casing on the abi outside of the code responsible for
abi specific adjustments to the pass mode.
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in types
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Edit rustc_middle::ty::cast docs
Link to RFC 401 and add missing punctuation.
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prevent potential bug in `encode_with_shorthand`.
see https://rust-lang.zulipchat.com/#narrow/stream/233931-t-compiler.2Fmajor-changes/topic/Remove.20PredicateKind.20in.20favor.20of.20only.20Bin.E2.80.A6.20compiler-team.23397/near/223012169
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Remove PredicateKind and instead only use Binder<PredicateAtom>
Originally brought up in https://github.com/rust-lang/rust/pull/76814#discussion_r546858171
r? `@lcnr`
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Link to RFC 401 and add missing punctuation.
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r=nikomatsakis`
Improve diagnostics when closure doesn't meet trait bound
Improves the diagnostics when closure doesn't meet trait bound by modifying `TypeckResuts::closure_kind_origins` such that `hir::Place` is used instead of `Symbol`. Using `hir::Place` to describe which capture influenced the decision of selecting a trait a closure satisfies to (Fn/FnMut/FnOnce, Copy) allows us to show precise path in the diagnostics when `capture_disjoint_field` feature is enabled.
Closes rust-lang/project-rfc-2229/issues/21
r? ```@nikomatsakis```
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