Merge from rustc

Author: The rustc-dev-guide Cronjob Bot

Cargo.lock

@@ -1859,7 +1859,6 @@ checksum = "62f822373a4fe84d4bb149bf54e584a7f4abec90e072ed49cda0edea5b95471f"
 dependencies = [
  "equivalent",
  "hashbrown 0.15.2",
- "rustc-rayon",
  "serde",
 ]
 
@@ -3240,11 +3239,12 @@ dependencies = [
 
 [[package]]
 name = "rustc-rayon"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb81aadc8837ca6ecebe0fe1353f15df83b3b3cc2cf7a8afd571bc22aa121710"
+checksum = "2cd9fb077db982d7ceb42a90471e5a69a990b58f71e06f0d8340bb2cf35eb751"
 dependencies = [
  "either",
+ "indexmap",
  "rustc-rayon-core",
 ]
 
@@ -4234,6 +4234,7 @@ name = "rustc_monomorphize"
 version = "0.0.0"
 dependencies = [
  "rustc_abi",
+ "rustc_ast",
  "rustc_attr_parsing",
  "rustc_data_structures",
  "rustc_errors",
@@ -4243,6 +4244,7 @@ dependencies = [
  "rustc_middle",
  "rustc_session",
  "rustc_span",
+ "rustc_symbol_mangling",
  "rustc_target",
  "serde",
  "serde_json",

RELEASES.md

@@ -1,8 +1,22 @@
+Version 1.84.1 (2025-01-30)
+==========================
+
+<a id="1.84.1"></a>
+
+- [Fix ICE 132920 in duplicate-crate diagnostics.](https://github.com/rust-lang/rust/pull/133304/)
+- [Fix errors for overlapping impls in incremental rebuilds.](https://github.com/rust-lang/rust/pull/133828/)
+- [Fix slow compilation related to the next-generation trait solver.](https://github.com/rust-lang/rust/pull/135618/)
+- [Fix debuginfo when LLVM's location discriminator value limit is exceeded.](https://github.com/rust-lang/rust/pull/135643/)
+- Fixes for building Rust from source:
+  - [Only try to distribute `llvm-objcopy` if llvm tools are enabled.](https://github.com/rust-lang/rust/pull/134240/)
+  - [Add Profile Override for Non-Git Sources.](https://github.com/rust-lang/rust/pull/135433/)
+  - [Resolve symlinks of LLVM tool binaries before copying them.](https://github.com/rust-lang/rust/pull/135585/)
+  - [Make it possible to use ci-rustc on tarball sources.](https://github.com/rust-lang/rust/pull/135722/)
+
 Version 1.84.0 (2025-01-09)
 ==========================
 
-<a id="
-Language"></a>
+<a id="1.84.0-Language"></a>
 
 Language
 --------

REUSE.toml

@@ -92,7 +92,7 @@ SPDX-FileCopyrightText = "2015 Anders Kaseorg <andersk@mit.edu>"
 SPDX-License-Identifier = "MIT"
 
 [[annotations]]
-path = "src/librustdoc/html/static/fonts/FiraSans**"
+path = "src/librustdoc/html/static/fonts/Fira**"
 precedence = "override"
 SPDX-FileCopyrightText = ["2014, Mozilla Foundation", "2014, Telefonica S.A."]
 SPDX-License-Identifier = "OFL-1.1"

compiler/rustc_ast/src/expand/autodiff_attrs.rs

@@ -79,6 +79,7 @@ pub struct AutoDiffItem {
     pub target: String,
     pub attrs: AutoDiffAttrs,
 }
+
 #[derive(Clone, Eq, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)]
 pub struct AutoDiffAttrs {
     /// Conceptually either forward or reverse mode AD, as described in various autodiff papers and
@@ -231,7 +232,7 @@ impl AutoDiffAttrs {
         self.ret_activity == DiffActivity::ActiveOnly
     }
 
-    pub fn error() -> Self {
+    pub const fn error() -> Self {
         AutoDiffAttrs {
             mode: DiffMode::Error,
             ret_activity: DiffActivity::None,

compiler/rustc_ast/src/mut_visit.rs

@@ -954,8 +954,14 @@ fn walk_coroutine_kind<T: MutVisitor>(vis: &mut T, coroutine_kind: &mut Coroutin
 
 fn walk_fn<T: MutVisitor>(vis: &mut T, kind: FnKind<'_>) {
     match kind {
-        FnKind::Fn(_ctxt, _ident, FnSig { header, decl, span }, _visibility, generics, body) => {
+        FnKind::Fn(
+            _ctxt,
+            _ident,
+            _vis,
+            Fn { defaultness, generics, body, sig: FnSig { header, decl, span } },
+        ) => {
             // Identifier and visibility are visited as a part of the item.
+            visit_defaultness(vis, defaultness);
             vis.visit_fn_header(header);
             vis.visit_generics(generics);
             vis.visit_fn_decl(decl);
@@ -1205,13 +1211,8 @@ impl WalkItemKind for ItemKind {
             ItemKind::Const(item) => {
                 visit_const_item(item, vis);
             }
-            ItemKind::Fn(box Fn { defaultness, generics, sig, body }) => {
-                visit_defaultness(vis, defaultness);
-                vis.visit_fn(
-                    FnKind::Fn(FnCtxt::Free, ident, sig, visibility, generics, body),
-                    span,
-                    id,
-                );
+            ItemKind::Fn(func) => {
+                vis.visit_fn(FnKind::Fn(FnCtxt::Free, ident, visibility, &mut *func), span, id);
             }
             ItemKind::Mod(safety, mod_kind) => {
                 visit_safety(vis, safety);
@@ -1329,10 +1330,9 @@ impl WalkItemKind for AssocItemKind {
             AssocItemKind::Const(item) => {
                 visit_const_item(item, visitor);
             }
-            AssocItemKind::Fn(box Fn { defaultness, generics, sig, body }) => {
-                visit_defaultness(visitor, defaultness);
+            AssocItemKind::Fn(func) => {
                 visitor.visit_fn(
-                    FnKind::Fn(FnCtxt::Assoc(ctxt), ident, sig, visibility, generics, body),
+                    FnKind::Fn(FnCtxt::Assoc(ctxt), ident, visibility, &mut *func),
                     span,
                     id,
                 );
@@ -1476,10 +1476,9 @@ impl WalkItemKind for ForeignItemKind {
                 visitor.visit_ty(ty);
                 visit_opt(expr, |expr| visitor.visit_expr(expr));
             }
-            ForeignItemKind::Fn(box Fn { defaultness, generics, sig, body }) => {
-                visit_defaultness(visitor, defaultness);
+            ForeignItemKind::Fn(func) => {
                 visitor.visit_fn(
-                    FnKind::Fn(FnCtxt::Foreign, ident, sig, visibility, generics, body),
+                    FnKind::Fn(FnCtxt::Foreign, ident, visibility, &mut *func),
                     span,
                     id,
                 );
@@ -1965,14 +1964,7 @@ impl<N: DummyAstNode, T: DummyAstNode> DummyAstNode for crate::ast_traits::AstNo
 #[derive(Debug)]
 pub enum FnKind<'a> {
     /// E.g., `fn foo()`, `fn foo(&self)`, or `extern "Abi" fn foo()`.
-    Fn(
-        FnCtxt,
-        &'a mut Ident,
-        &'a mut FnSig,
-        &'a mut Visibility,
-        &'a mut Generics,
-        &'a mut Option<P<Block>>,
-    ),
+    Fn(FnCtxt, &'a mut Ident, &'a mut Visibility, &'a mut Fn),
 
     /// E.g., `|x, y| body`.
     Closure(

compiler/rustc_ast/src/token.rs

@@ -527,13 +527,13 @@ impl TokenKind {
 
     /// Returns tokens that are likely to be typed accidentally instead of the current token.
     /// Enables better error recovery when the wrong token is found.
-    pub fn similar_tokens(&self) -> Option<Vec<TokenKind>> {
-        match *self {
-            Comma => Some(vec![Dot, Lt, Semi]),
-            Semi => Some(vec![Colon, Comma]),
-            Colon => Some(vec![Semi]),
-            FatArrow => Some(vec![Eq, RArrow, Ge, Gt]),
-            _ => None,
+    pub fn similar_tokens(&self) -> &[TokenKind] {
+        match self {
+            Comma => &[Dot, Lt, Semi],
+            Semi => &[Colon, Comma],
+            Colon => &[Semi],
+            FatArrow => &[Eq, RArrow, Ge, Gt],
+            _ => &[],
         }
     }
 

compiler/rustc_ast/src/visit.rs

@@ -65,7 +65,7 @@ impl BoundKind {
 #[derive(Copy, Clone, Debug)]
 pub enum FnKind<'a> {
     /// E.g., `fn foo()`, `fn foo(&self)`, or `extern "Abi" fn foo()`.
-    Fn(FnCtxt, &'a Ident, &'a FnSig, &'a Visibility, &'a Generics, &'a Option<P<Block>>),
+    Fn(FnCtxt, &'a Ident, &'a Visibility, &'a Fn),
 
     /// E.g., `|x, y| body`.
     Closure(&'a ClosureBinder, &'a Option<CoroutineKind>, &'a FnDecl, &'a Expr),
@@ -74,7 +74,7 @@ pub enum FnKind<'a> {
 impl<'a> FnKind<'a> {
     pub fn header(&self) -> Option<&'a FnHeader> {
         match *self {
-            FnKind::Fn(_, _, sig, _, _, _) => Some(&sig.header),
+            FnKind::Fn(_, _, _, Fn { sig, .. }) => Some(&sig.header),
             FnKind::Closure(..) => None,
         }
     }
@@ -88,7 +88,7 @@ impl<'a> FnKind<'a> {
 
     pub fn decl(&self) -> &'a FnDecl {
         match self {
-            FnKind::Fn(_, _, sig, _, _, _) => &sig.decl,
+            FnKind::Fn(_, _, _, Fn { sig, .. }) => &sig.decl,
             FnKind::Closure(_, _, decl, _) => decl,
         }
     }
@@ -374,8 +374,8 @@ impl WalkItemKind for ItemKind {
                 try_visit!(visitor.visit_ty(ty));
                 visit_opt!(visitor, visit_expr, expr);
             }
-            ItemKind::Fn(box Fn { defaultness: _, generics, sig, body }) => {
-                let kind = FnKind::Fn(FnCtxt::Free, ident, sig, vis, generics, body);
+            ItemKind::Fn(func) => {
+                let kind = FnKind::Fn(FnCtxt::Free, ident, vis, &*func);
                 try_visit!(visitor.visit_fn(kind, span, id));
             }
             ItemKind::Mod(_unsafety, mod_kind) => match mod_kind {
@@ -715,8 +715,8 @@ impl WalkItemKind for ForeignItemKind {
                 try_visit!(visitor.visit_ty(ty));
                 visit_opt!(visitor, visit_expr, expr);
             }
-            ForeignItemKind::Fn(box Fn { defaultness: _, generics, sig, body }) => {
-                let kind = FnKind::Fn(FnCtxt::Foreign, ident, sig, vis, generics, body);
+            ForeignItemKind::Fn(func) => {
+                let kind = FnKind::Fn(FnCtxt::Foreign, ident, vis, &*func);
                 try_visit!(visitor.visit_fn(kind, span, id));
             }
             ForeignItemKind::TyAlias(box TyAlias {
@@ -858,7 +858,12 @@ pub fn walk_fn_decl<'a, V: Visitor<'a>>(
 
 pub fn walk_fn<'a, V: Visitor<'a>>(visitor: &mut V, kind: FnKind<'a>) -> V::Result {
     match kind {
-        FnKind::Fn(_ctxt, _ident, FnSig { header, decl, span: _ }, _vis, generics, body) => {
+        FnKind::Fn(
+            _ctxt,
+            _ident,
+            _vis,
+            Fn { defaultness: _, sig: FnSig { header, decl, span: _ }, generics, body },
+        ) => {
             // Identifier and visibility are visited as a part of the item.
             try_visit!(visitor.visit_fn_header(header));
             try_visit!(visitor.visit_generics(generics));
@@ -892,8 +897,8 @@ impl WalkItemKind for AssocItemKind {
                 try_visit!(visitor.visit_ty(ty));
                 visit_opt!(visitor, visit_expr, expr);
             }
-            AssocItemKind::Fn(box Fn { defaultness: _, generics, sig, body }) => {
-                let kind = FnKind::Fn(FnCtxt::Assoc(ctxt), ident, sig, vis, generics, body);
+            AssocItemKind::Fn(func) => {
+                let kind = FnKind::Fn(FnCtxt::Assoc(ctxt), ident, vis, &*func);
                 try_visit!(visitor.visit_fn(kind, span, id));
             }
             AssocItemKind::Type(box TyAlias {

compiler/rustc_ast_lowering/src/expr.rs

@@ -1391,7 +1391,11 @@ impl<'hir> LoweringContext<'_, 'hir> {
                         None,
                     );
                     // Destructure like a unit struct.
-                    let unit_struct_pat = hir::PatKind::Path(qpath);
+                    let unit_struct_pat = hir::PatKind::Expr(self.arena.alloc(hir::PatExpr {
+                        kind: hir::PatExprKind::Path(qpath),
+                        hir_id: self.next_id(),
+                        span: self.lower_span(lhs.span),
+                    }));
                     return self.pat_without_dbm(lhs.span, unit_struct_pat);
                 }
             }
@@ -2125,7 +2129,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         self.arena.alloc(self.expr_call_mut(span, e, args))
     }
 
-    fn expr_call_lang_item_fn_mut(
+    pub(super) fn expr_call_lang_item_fn_mut(
         &mut self,
         span: Span,
         lang_item: hir::LangItem,
@@ -2135,7 +2139,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         self.expr_call_mut(span, path, args)
     }
 
-    fn expr_call_lang_item_fn(
+    pub(super) fn expr_call_lang_item_fn(
         &mut self,
         span: Span,
         lang_item: hir::LangItem,

compiler/rustc_ast_lowering/src/pat.rs

@@ -69,7 +69,16 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                             ImplTraitContext::Disallowed(ImplTraitPosition::Path),
                             None,
                         );
-                        break hir::PatKind::Path(qpath);
+                        let kind = hir::PatExprKind::Path(qpath);
+                        let span = self.lower_span(pattern.span);
+                        let expr = hir::PatExpr { hir_id: pat_hir_id, span, kind };
+                        let expr = self.arena.alloc(expr);
+                        return hir::Pat {
+                            hir_id: self.next_id(),
+                            kind: hir::PatKind::Expr(expr),
+                            span,
+                            default_binding_modes: true,
+                        };
                     }
                     PatKind::Struct(qself, path, fields, etc) => {
                         let qpath = self.lower_qpath(
@@ -304,16 +313,20 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                 )
             }
             Some(res) => {
-                let hir_id = self.next_id();
                 let res = self.lower_res(res);
-                hir::PatKind::Path(hir::QPath::Resolved(
-                    None,
-                    self.arena.alloc(hir::Path {
-                        span: self.lower_span(ident.span),
-                        res,
-                        segments: arena_vec![self; hir::PathSegment::new(self.lower_ident(ident), hir_id, res)],
-                    }),
-            ))
+                let span = self.lower_span(ident.span);
+                hir::PatKind::Expr(self.arena.alloc(hir::PatExpr {
+                    kind: hir::PatExprKind::Path(hir::QPath::Resolved(
+                        None,
+                        self.arena.alloc(hir::Path {
+                            span,
+                            res,
+                            segments: arena_vec![self; hir::PathSegment::new(self.lower_ident(ident), self.next_id(), res)],
+                        }),
+                    )),
+                    hir_id: self.next_id(),
+                    span,
+                }))
             }
         }
     }