Rollup of 9 pull requests

Cargo.lock

@@ -407,9 +407,9 @@ version = "0.1.0"
 
 [[package]]
 name = "cc"
-version = "1.2.13"
+version = "1.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7777341816418c02e033934a09f20dc0ccaf65a5201ef8a450ae0105a573fda"
+checksum = "be714c154be609ec7f5dad223a33bf1482fff90472de28f7362806e6d4832b8c"
 dependencies = [
  "shlex",
 ]

compiler/rustc_builtin_macros/src/autodiff.rs

@@ -3,7 +3,6 @@
 //! configs (autodiff enabled or disabled), so we have to add cfg's to each import.
 //! FIXME(ZuseZ4): Remove this once we have a smarter linter.
 
-#[cfg(llvm_enzyme)]
 mod llvm_enzyme {
     use std::str::FromStr;
     use std::string::String;
@@ -130,10 +129,14 @@ mod llvm_enzyme {
         meta_item: &ast::MetaItem,
         mut item: Annotatable,
     ) -> Vec<Annotatable> {
+        if cfg!(not(llvm_enzyme)) {
+            ecx.sess.dcx().emit_err(errors::AutoDiffSupportNotBuild { span: meta_item.span });
+            return vec![item];
+        }
         let dcx = ecx.sess.dcx();
         // first get the annotable item:
         let (sig, is_impl): (FnSig, bool) = match &item {
-            Annotatable::Item(ref iitem) => {
+            Annotatable::Item(iitem) => {
                 let sig = match &iitem.kind {
                     ItemKind::Fn(box ast::Fn { sig, .. }) => sig,
                     _ => {
@@ -143,7 +146,7 @@ mod llvm_enzyme {
                 };
                 (sig.clone(), false)
             }
-            Annotatable::AssocItem(ref assoc_item, _) => {
+            Annotatable::AssocItem(assoc_item, _) => {
                 let sig = match &assoc_item.kind {
                     ast::AssocItemKind::Fn(box ast::Fn { sig, .. }) => sig,
                     _ => {
@@ -171,8 +174,8 @@ mod llvm_enzyme {
         let sig_span = ecx.with_call_site_ctxt(sig.span);
 
         let (vis, primal) = match &item {
-            Annotatable::Item(ref iitem) => (iitem.vis.clone(), iitem.ident.clone()),
-            Annotatable::AssocItem(ref assoc_item, _) => {
+            Annotatable::Item(iitem) => (iitem.vis.clone(), iitem.ident.clone()),
+            Annotatable::AssocItem(assoc_item, _) => {
                 (assoc_item.vis.clone(), assoc_item.ident.clone())
             }
             _ => {
@@ -801,25 +804,4 @@ mod llvm_enzyme {
     }
 }
 
-#[cfg(not(llvm_enzyme))]
-mod ad_fallback {
-    use rustc_ast::ast;
-    use rustc_expand::base::{Annotatable, ExtCtxt};
-    use rustc_span::Span;
-
-    use crate::errors;
-    pub(crate) fn expand(
-        ecx: &mut ExtCtxt<'_>,
-        _expand_span: Span,
-        meta_item: &ast::MetaItem,
-        item: Annotatable,
-    ) -> Vec<Annotatable> {
-        ecx.sess.dcx().emit_err(errors::AutoDiffSupportNotBuild { span: meta_item.span });
-        return vec![item];
-    }
-}
-
-#[cfg(not(llvm_enzyme))]
-pub(crate) use ad_fallback::expand;
-#[cfg(llvm_enzyme)]
 pub(crate) use llvm_enzyme::expand;

compiler/rustc_builtin_macros/src/errors.rs

@@ -144,10 +144,8 @@ pub(crate) struct AllocMustStatics {
     pub(crate) span: Span,
 }
 
-#[cfg(llvm_enzyme)]
 pub(crate) use autodiff::*;
 
-#[cfg(llvm_enzyme)]
 mod autodiff {
     use super::*;
     #[derive(Diagnostic)]
@@ -203,9 +201,7 @@ mod autodiff {
     }
 }
 
-#[cfg(not(llvm_enzyme))]
 pub(crate) use ad_fallback::*;
-#[cfg(not(llvm_enzyme))]
 mod ad_fallback {
     use super::*;
     #[derive(Diagnostic)]

compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs

@@ -42,10 +42,10 @@ pub use self::Enzyme_AD::*;
 #[cfg(llvm_enzyme)]
 pub mod Enzyme_AD {
     use libc::c_void;
-    extern "C" {
+    unsafe extern "C" {
         pub fn EnzymeSetCLBool(arg1: *mut ::std::os::raw::c_void, arg2: u8);
     }
-    extern "C" {
+    unsafe extern "C" {
         static mut EnzymePrintPerf: c_void;
         static mut EnzymePrintActivity: c_void;
         static mut EnzymePrintType: c_void;

compiler/rustc_codegen_ssa/Cargo.toml

@@ -11,7 +11,7 @@ bitflags = "2.4.1"
 bstr = "1.11.3"
 # Pinned so `cargo update` bumps don't cause breakage. Please also update the
 # `cc` in `rustc_llvm` if you update the `cc` here.
-cc = "=1.2.13"
+cc = "=1.2.16"
 either = "1.5.0"
 itertools = "0.12"
 pathdiff = "0.2.0"

compiler/rustc_hir/src/hir.rs

@@ -1683,6 +1683,12 @@ pub enum PatKind<'hir> {
     /// The `HirId` is the canonical ID for the variable being bound,
     /// (e.g., in `Ok(x) | Err(x)`, both `x` use the same canonical ID),
     /// which is the pattern ID of the first `x`.
+    ///
+    /// The `BindingMode` is what's provided by the user, before match
+    /// ergonomics are applied. For the binding mode actually in use,
+    /// see [`TypeckResults::extract_binding_mode`].
+    ///
+    /// [`TypeckResults::extract_binding_mode`]: ../../rustc_middle/ty/struct.TypeckResults.html#method.extract_binding_mode
     Binding(BindingMode, HirId, Ident, Option<&'hir Pat<'hir>>),
 
     /// A struct or struct variant pattern (e.g., `Variant {x, y, ..}`).

compiler/rustc_hir_typeck/src/expr_use_visitor.rs

@@ -895,48 +895,44 @@ impl<'tcx, Cx: TypeInformationCtxt<'tcx>, D: Delegate<'tcx>> ExprUseVisitor<'tcx
             match pat.kind {
                 PatKind::Binding(_, canonical_id, ..) => {
                     debug!("walk_pat: binding place={:?} pat={:?}", place, pat);
-                    if let Some(bm) = self
+                    let bm = self
                         .cx
                         .typeck_results()
-                        .extract_binding_mode(tcx.sess, pat.hir_id, pat.span)
-                    {
-                        debug!("walk_pat: pat.hir_id={:?} bm={:?}", pat.hir_id, bm);
+                        .extract_binding_mode(tcx.sess, pat.hir_id, pat.span);
+                    debug!("walk_pat: pat.hir_id={:?} bm={:?}", pat.hir_id, bm);
 
-                        // pat_ty: the type of the binding being produced.
-                        let pat_ty = self.node_ty(pat.hir_id)?;
-                        debug!("walk_pat: pat_ty={:?}", pat_ty);
+                    // pat_ty: the type of the binding being produced.
+                    let pat_ty = self.node_ty(pat.hir_id)?;
+                    debug!("walk_pat: pat_ty={:?}", pat_ty);
 
-                        let def = Res::Local(canonical_id);
-                        if let Ok(ref binding_place) =
-                            self.cat_res(pat.hir_id, pat.span, pat_ty, def)
-                        {
-                            self.delegate.borrow_mut().bind(binding_place, binding_place.hir_id);
-                        }
+                    let def = Res::Local(canonical_id);
+                    if let Ok(ref binding_place) = self.cat_res(pat.hir_id, pat.span, pat_ty, def) {
+                        self.delegate.borrow_mut().bind(binding_place, binding_place.hir_id);
+                    }
 
-                        // Subtle: MIR desugaring introduces immutable borrows for each pattern
-                        // binding when lowering pattern guards to ensure that the guard does not
-                        // modify the scrutinee.
-                        if has_guard {
-                            self.delegate.borrow_mut().borrow(
-                                place,
-                                discr_place.hir_id,
-                                BorrowKind::Immutable,
-                            );
-                        }
+                    // Subtle: MIR desugaring introduces immutable borrows for each pattern
+                    // binding when lowering pattern guards to ensure that the guard does not
+                    // modify the scrutinee.
+                    if has_guard {
+                        self.delegate.borrow_mut().borrow(
+                            place,
+                            discr_place.hir_id,
+                            BorrowKind::Immutable,
+                        );
+                    }
 
-                        // It is also a borrow or copy/move of the value being matched.
-                        // In a cases of pattern like `let pat = upvar`, don't use the span
-                        // of the pattern, as this just looks confusing, instead use the span
-                        // of the discriminant.
-                        match bm.0 {
-                            hir::ByRef::Yes(m) => {
-                                let bk = ty::BorrowKind::from_mutbl(m);
-                                self.delegate.borrow_mut().borrow(place, discr_place.hir_id, bk);
-                            }
-                            hir::ByRef::No => {
-                                debug!("walk_pat binding consuming pat");
-                                self.consume_or_copy(place, discr_place.hir_id);
-                            }
+                    // It is also a borrow or copy/move of the value being matched.
+                    // In a cases of pattern like `let pat = upvar`, don't use the span
+                    // of the pattern, as this just looks confusing, instead use the span
+                    // of the discriminant.
+                    match bm.0 {
+                        hir::ByRef::Yes(m) => {
+                            let bk = ty::BorrowKind::from_mutbl(m);
+                            self.delegate.borrow_mut().borrow(place, discr_place.hir_id, bk);
+                        }
+                        hir::ByRef::No => {
+                            debug!("walk_pat binding consuming pat");
+                            self.consume_or_copy(place, discr_place.hir_id);
                         }
                     }
                 }

compiler/rustc_hir_typeck/src/writeback.rs

@@ -319,11 +319,8 @@ impl<'cx, 'tcx> Visitor<'tcx> for WritebackCx<'cx, 'tcx> {
         match p.kind {
             hir::PatKind::Binding(..) => {
                 let typeck_results = self.fcx.typeck_results.borrow();
-                if let Some(bm) =
-                    typeck_results.extract_binding_mode(self.tcx().sess, p.hir_id, p.span)
-                {
-                    self.typeck_results.pat_binding_modes_mut().insert(p.hir_id, bm);
-                }
+                let bm = typeck_results.extract_binding_mode(self.tcx().sess, p.hir_id, p.span);
+                self.typeck_results.pat_binding_modes_mut().insert(p.hir_id, bm);
             }
             hir::PatKind::Struct(_, fields, _) => {
                 for field in fields {

compiler/rustc_lint/src/types/literal.rs

@@ -186,7 +186,7 @@ fn report_bin_hex_error(
                 lit_no_suffix,
                 negative_val: actually.clone(),
                 int_ty: int_ty.name_str(),
-                uint_ty: int_ty.to_unsigned().name_str(),
+                uint_ty: Integer::fit_unsigned(val).uint_ty_str(),
             })
         })
         .flatten();

compiler/rustc_llvm/Cargo.toml

@@ -12,5 +12,5 @@ libc = "0.2.73"
 # tidy-alphabetical-start
 # Pinned so `cargo update` bumps don't cause breakage. Please also update the
 # pinned `cc` in `rustc_codegen_ssa` if you update `cc` here.
-cc = "=1.2.13"
+cc = "=1.2.16"
 # tidy-alphabetical-end

compiler/rustc_middle/src/query/mod.rs

@@ -143,11 +143,11 @@ rustc_queries! {
 
     /// Represents crate as a whole (as distinct from the top-level crate module).
     ///
-    /// If you call `hir_crate` (e.g., indirectly by calling `tcx.hir().krate()`),
+    /// If you call `hir_crate` (e.g., indirectly by calling `tcx.hir_crate()`),
     /// we will have to assume that any change means that you need to be recompiled.
     /// This is because the `hir_crate` query gives you access to all other items.
-    /// To avoid this fate, do not call `tcx.hir().krate()`; instead,
-    /// prefer wrappers like `tcx.visit_all_items_in_krate()`.
+    /// To avoid this fate, do not call `tcx.hir_crate()`; instead,
+    /// prefer wrappers like [`TyCtxt::hir_visit_all_item_likes_in_crate`].
     query hir_crate(key: ()) -> &'tcx Crate<'tcx> {
         arena_cache
         eval_always

compiler/rustc_middle/src/query/plumbing.rs

@@ -258,7 +258,7 @@ macro_rules! query_if_arena {
     };
 }
 
-/// If `separate_provide_if_extern`, then the key can be projected to its
+/// If `separate_provide_extern`, then the key can be projected to its
 /// local key via `<$K as AsLocalKey>::LocalKey`.
 macro_rules! local_key_if_separate_extern {
     ([] $($K:tt)*) => {

compiler/rustc_middle/src/ty/context.rs

@@ -594,6 +594,10 @@ impl<'tcx> Interner for TyCtxt<'tcx> {
         self.trait_is_auto(trait_def_id)
     }
 
+    fn trait_is_coinductive(self, trait_def_id: DefId) -> bool {
+        self.trait_is_coinductive(trait_def_id)
+    }
+
     fn trait_is_alias(self, trait_def_id: DefId) -> bool {
         self.trait_is_alias(trait_def_id)
     }

compiler/rustc_middle/src/ty/predicate.rs

@@ -4,7 +4,6 @@ use rustc_data_structures::intern::Interned;
 use rustc_hir::def_id::DefId;
 use rustc_macros::{HashStable, extension};
 use rustc_type_ir as ir;
-use tracing::instrument;
 
 use crate::ty::{
     self, DebruijnIndex, EarlyBinder, PredicatePolarity, Ty, TyCtxt, TypeFlags, Upcast, UpcastFrom,
@@ -51,10 +50,6 @@ impl<'tcx> rustc_type_ir::inherent::Predicate<TyCtxt<'tcx>> for Predicate<'tcx>
         self.as_clause()
     }
 
-    fn is_coinductive(self, interner: TyCtxt<'tcx>) -> bool {
-        self.is_coinductive(interner)
-    }
-
     fn allow_normalization(self) -> bool {
         self.allow_normalization()
     }
@@ -119,17 +114,6 @@ impl<'tcx> Predicate<'tcx> {
         Some(tcx.mk_predicate(kind))
     }
 
-    #[instrument(level = "debug", skip(tcx), ret)]
-    pub fn is_coinductive(self, tcx: TyCtxt<'tcx>) -> bool {
-        match self.kind().skip_binder() {
-            ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => {
-                tcx.trait_is_coinductive(data.def_id())
-            }
-            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_)) => true,
-            _ => false,
-        }
-    }
-
     /// Whether this projection can be soundly normalized.
     ///
     /// Wf predicates must not be normalized, as normalization

compiler/rustc_middle/src/ty/typeck_results.rs

@@ -394,8 +394,10 @@ impl<'tcx> TypeckResults<'tcx> {
         matches!(self.type_dependent_defs().get(expr.hir_id), Some(Ok((DefKind::AssocFn, _))))
     }
 
-    pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> Option<BindingMode> {
-        self.pat_binding_modes().get(id).copied().or_else(|| {
+    /// Returns the computed binding mode for a `PatKind::Binding` pattern
+    /// (after match ergonomics adjustments).
+    pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> BindingMode {
+        self.pat_binding_modes().get(id).copied().unwrap_or_else(|| {
             s.dcx().span_bug(sp, "missing binding mode");
         })
     }