Rollup of 10 pull requests

Cargo.lock

@@ -1525,7 +1525,6 @@ checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 dependencies = [
  "ahash",
  "allocator-api2",
- "serde",
 ]
 
 [[package]]
@@ -1535,6 +1534,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
 dependencies = [
  "foldhash",
+ "serde",
 ]
 
 [[package]]
@@ -5880,9 +5880,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasi-preview1-component-adapter-provider"
-version = "24.0.1"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f76d9fa52234153eeb40b088de91a8c13dc28a912cf6f31cd89ca4bac9024e0"
+checksum = "dcd9f21bbde82ba59e415a8725e6ad0d0d7e9e460b1a3ccbca5bdee952c1a324"
 
 [[package]]
 name = "wasm-bindgen"
@@ -5944,17 +5944,17 @@ dependencies = [
 
 [[package]]
 name = "wasm-component-ld"
-version = "0.5.11"
+version = "0.5.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2b05c3820968b335f10e703218459e4fd2cc91fdfc8f7936a993f1aacaa0938"
+checksum = "580305a8e3f1b7a79859a8db897de643533b2851c5eb080fe5800233f16dec88"
 dependencies = [
  "anyhow",
  "clap",
  "lexopt",
  "libc",
  "tempfile",
  "wasi-preview1-component-adapter-provider",
- "wasmparser 0.219.1",
+ "wasmparser 0.223.0",
  "wat",
  "windows-sys 0.59.0",
  "winsplit",
@@ -5991,18 +5991,19 @@ dependencies = [
 
 [[package]]
 name = "wasm-metadata"
-version = "0.219.1"
+version = "0.223.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2af5a8e37a5e996861e1813f8de30911c47609c9ff51a7284f7dbd754dc3a9f3"
+checksum = "5c730c3379d3d20e5a0245b0724b924483e853588ca8fba547c1e21f19e7d735"
 dependencies = [
  "anyhow",
  "indexmap",
  "serde",
  "serde_derive",
  "serde_json",
  "spdx",
- "wasm-encoder 0.219.1",
- "wasmparser 0.219.1",
+ "url",
+ "wasm-encoder 0.223.0",
+ "wasmparser 0.223.0",
 ]
 
 [[package]]
@@ -6011,12 +6012,8 @@ version = "0.219.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c771866898879073c53b565a6c7b49953795159836714ac56a5befb581227c5"
 dependencies = [
- "ahash",
  "bitflags",
- "hashbrown 0.14.5",
  "indexmap",
- "semver",
- "serde",
 ]
 
 [[package]]
@@ -6035,8 +6032,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d5a99faceb1a5a84dd6084ec4bfa4b2ab153b5793b43fd8f58b89232634afc35"
 dependencies = [
  "bitflags",
+ "hashbrown 0.15.2",
  "indexmap",
  "semver",
+ "serde",
 ]
 
 [[package]]
@@ -6476,9 +6475,9 @@ checksum = "3ab703352da6a72f35c39a533526393725640575bb211f61987a2748323ad956"
 
 [[package]]
 name = "wit-component"
-version = "0.219.1"
+version = "0.223.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad1673163c0cb14a6a19ddbf44dd4efe6f015ec1ebb8156710ac32501f19fba2"
+checksum = "c10ed2aeee4c8ec5715875f62f4a3de3608d6987165c116810d8c2908aa9d93b"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -6487,17 +6486,17 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "wasm-encoder 0.219.1",
+ "wasm-encoder 0.223.0",
  "wasm-metadata",
- "wasmparser 0.219.1",
+ "wasmparser 0.223.0",
  "wit-parser",
 ]
 
 [[package]]
 name = "wit-parser"
-version = "0.219.1"
+version = "0.223.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a86f669283257e8e424b9a4fc3518e3ade0b95deb9fbc0f93a1876be3eda598"
+checksum = "92772f4dcacb804b275981eea1d920b12b377993b53307f1e33d87404e080281"
 dependencies = [
  "anyhow",
  "id-arena",
@@ -6508,7 +6507,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-xid",
- "wasmparser 0.219.1",
+ "wasmparser 0.223.0",
 ]
 
 [[package]]

compiler/rustc_ast_lowering/src/expr.rs

@@ -2159,7 +2159,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         let path = hir::ExprKind::Path(hir::QPath::TypeRelative(
             self.arena.alloc(self.ty(span, hir::TyKind::Path(qpath))),
             self.arena.alloc(hir::PathSegment::new(
-                Ident::new(name, span),
+                Ident::new(name, self.lower_span(span)),
                 self.next_id(),
                 Res::Err,
             )),

compiler/rustc_ast_lowering/src/index.rs

@@ -78,24 +78,31 @@ impl<'a, 'hir> NodeCollector<'a, 'hir> {
 
         // Make sure that the DepNode of some node coincides with the HirId
         // owner of that node.
-        if cfg!(debug_assertions) && hir_id.owner != self.owner {
-            span_bug!(
-                span,
-                "inconsistent HirId at `{:?}` for `{:?}`: \
+        if cfg!(debug_assertions) {
+            if hir_id.owner != self.owner {
+                span_bug!(
+                    span,
+                    "inconsistent HirId at `{:?}` for `{node:?}`: \
                      current_dep_node_owner={} ({:?}), hir_id.owner={} ({:?})",
-                self.tcx.sess.source_map().span_to_diagnostic_string(span),
-                node,
-                self.tcx
-                    .definitions_untracked()
-                    .def_path(self.owner.def_id)
-                    .to_string_no_crate_verbose(),
-                self.owner,
-                self.tcx
-                    .definitions_untracked()
-                    .def_path(hir_id.owner.def_id)
-                    .to_string_no_crate_verbose(),
-                hir_id.owner,
-            )
+                    self.tcx.sess.source_map().span_to_diagnostic_string(span),
+                    self.tcx
+                        .definitions_untracked()
+                        .def_path(self.owner.def_id)
+                        .to_string_no_crate_verbose(),
+                    self.owner,
+                    self.tcx
+                        .definitions_untracked()
+                        .def_path(hir_id.owner.def_id)
+                        .to_string_no_crate_verbose(),
+                    hir_id.owner,
+                )
+            }
+            if self.tcx.sess.opts.incremental.is_some()
+                && span.parent().is_none()
+                && !span.is_dummy()
+            {
+                span_bug!(span, "span without a parent: {:#?}, {node:?}", span.data())
+            }
         }
 
         self.nodes[hir_id.local_id] = ParentedNode { parent: self.parent_node, node };

compiler/rustc_ast_lowering/src/item.rs

@@ -1092,6 +1092,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
             // this as a special case.
             return self.lower_fn_body(decl, |this| {
                 if attrs.iter().any(|a| a.name_or_empty() == sym::rustc_intrinsic) {
+                    let span = this.lower_span(span);
                     let empty_block = hir::Block {
                         hir_id: this.next_id(),
                         stmts: &[],

compiler/rustc_ast_lowering/src/pat.rs

@@ -375,24 +375,24 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         expr: &Expr,
         allow_paths: bool,
     ) -> &'hir hir::PatExpr<'hir> {
+        let span = self.lower_span(expr.span);
         let err = |guar| hir::PatExprKind::Lit {
-            lit: self.arena.alloc(respan(self.lower_span(expr.span), LitKind::Err(guar))),
+            lit: self.arena.alloc(respan(span, LitKind::Err(guar))),
             negated: false,
         };
         let kind = match &expr.kind {
             ExprKind::Lit(lit) => {
-                hir::PatExprKind::Lit { lit: self.lower_lit(lit, expr.span), negated: false }
+                hir::PatExprKind::Lit { lit: self.lower_lit(lit, span), negated: false }
             }
             ExprKind::ConstBlock(c) => hir::PatExprKind::ConstBlock(self.lower_const_block(c)),
             ExprKind::IncludedBytes(bytes) => hir::PatExprKind::Lit {
-                lit: self.arena.alloc(respan(
-                    self.lower_span(expr.span),
-                    LitKind::ByteStr(Arc::clone(bytes), StrStyle::Cooked),
-                )),
+                lit: self
+                    .arena
+                    .alloc(respan(span, LitKind::ByteStr(Arc::clone(bytes), StrStyle::Cooked))),
                 negated: false,
             },
             ExprKind::Err(guar) => err(*guar),
-            ExprKind::Dummy => span_bug!(expr.span, "lowered ExprKind::Dummy"),
+            ExprKind::Dummy => span_bug!(span, "lowered ExprKind::Dummy"),
             ExprKind::Path(qself, path) if allow_paths => hir::PatExprKind::Path(self.lower_qpath(
                 expr.id,
                 qself,
@@ -403,21 +403,17 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                 None,
             )),
             ExprKind::Unary(UnOp::Neg, inner) if let ExprKind::Lit(lit) = &inner.kind => {
-                hir::PatExprKind::Lit { lit: self.lower_lit(lit, expr.span), negated: true }
+                hir::PatExprKind::Lit { lit: self.lower_lit(lit, span), negated: true }
             }
             _ => {
                 let pattern_from_macro = expr.is_approximately_pattern();
                 let guar = self.dcx().emit_err(ArbitraryExpressionInPattern {
-                    span: expr.span,
+                    span,
                     pattern_from_macro_note: pattern_from_macro,
                 });
                 err(guar)
             }
         };
-        self.arena.alloc(hir::PatExpr {
-            hir_id: self.lower_node_id(expr.id),
-            span: expr.span,
-            kind,
-        })
+        self.arena.alloc(hir::PatExpr { hir_id: self.lower_node_id(expr.id), span, kind })
     }
 }

compiler/rustc_borrowck/src/type_check/canonical.rs

@@ -185,7 +185,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                 CustomTypeOp::new(
                     |ocx| {
                         let structurally_normalize = |ty| {
-                            ocx.structurally_normalize(
+                            ocx.structurally_normalize_ty(
                                 &ObligationCause::misc(
                                     location.to_locations().span(body),
                                     body.source.def_id().expect_local(),
@@ -230,7 +230,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                 ConstraintCategory::Boring,
                 CustomTypeOp::new(
                     |ocx| {
-                        ocx.structurally_normalize(
+                        ocx.structurally_normalize_ty(
                             &ObligationCause::misc(
                                 location.to_locations().span(body),
                                 body.source.def_id().expect_local(),

compiler/rustc_codegen_llvm/Cargo.toml

@@ -9,6 +9,8 @@ test = false
 [dependencies]
 # tidy-alphabetical-start
 bitflags = "2.4.1"
+# To avoid duplicate dependencies, this should match the version of gimli used
+# by `rustc_codegen_ssa` via its `thorin-dwp` dependency.
 gimli = "0.30"
 itertools = "0.12"
 libc = "0.2"

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -741,8 +741,11 @@ pub mod debuginfo {
     pub type DIEnumerator = DIDescriptor;
     pub type DITemplateTypeParameter = DIDescriptor;
 
-    // These values **must** match with LLVMRustDIFlags!!
     bitflags! {
+        /// Must match the layout of `LLVMDIFlags` in the LLVM-C API.
+        ///
+        /// Each value declared here must also be covered by the static
+        /// assertions in `RustWrapper.cpp` used by `fromRust(LLVMDIFlags)`.
         #[repr(transparent)]
         #[derive(Clone, Copy, Default)]
         pub struct DIFlags: u32 {
@@ -752,7 +755,7 @@ pub mod debuginfo {
             const FlagPublic              = 3;
             const FlagFwdDecl             = (1 << 2);
             const FlagAppleBlock          = (1 << 3);
-            const FlagBlockByrefStruct    = (1 << 4);
+            const FlagReservedBit4        = (1 << 4);
             const FlagVirtual             = (1 << 5);
             const FlagArtificial          = (1 << 6);
             const FlagExplicit            = (1 << 7);
@@ -763,10 +766,21 @@ pub mod debuginfo {
             const FlagStaticMember        = (1 << 12);
             const FlagLValueReference     = (1 << 13);
             const FlagRValueReference     = (1 << 14);
-            const FlagExternalTypeRef     = (1 << 15);
+            const FlagReserved            = (1 << 15);
+            const FlagSingleInheritance   = (1 << 16);
+            const FlagMultipleInheritance = (2 << 16);
+            const FlagVirtualInheritance  = (3 << 16);
             const FlagIntroducedVirtual   = (1 << 18);
             const FlagBitField            = (1 << 19);
             const FlagNoReturn            = (1 << 20);
+            // The bit at (1 << 21) is unused, but was `LLVMDIFlagMainSubprogram`.
+            const FlagTypePassByValue     = (1 << 22);
+            const FlagTypePassByReference = (1 << 23);
+            const FlagEnumClass           = (1 << 24);
+            const FlagThunk               = (1 << 25);
+            const FlagNonTrivial          = (1 << 26);
+            const FlagBigEndian           = (1 << 27);
+            const FlagLittleEndian        = (1 << 28);
         }
     }
 

compiler/rustc_error_codes/src/error_codes/E0038.md

@@ -264,15 +264,15 @@ trait Foo {
 ### Trait contains associated constants
 
 Just like static functions, associated constants aren't stored on the method
-table. If the trait or any subtrait contain an associated constant, they cannot
-be made into an object.
+table. If the trait or any subtrait contain an associated constant, they are not
+dyn compatible.
 
 ```compile_fail,E0038
 trait Foo {
     const X: i32;
 }
 
-impl Foo {}
+impl dyn Foo {}
 ```
 
 A simple workaround is to use a helper method instead:

compiler/rustc_feature/src/removed.rs

@@ -163,7 +163,7 @@ declare_features! (
     /// then removed. But there was no utility storing it separately, so now
     /// it's in this list.
     (removed, no_stack_check, "1.0.0", None, None),
-    /// Allows making `dyn Trait` well-formed even if `Trait` is not dyn-compatible (object safe).
+    /// Allows making `dyn Trait` well-formed even if `Trait` is not dyn compatible (object safe).
     /// Renamed to `dyn_compatible_for_dispatch`.
     (removed, object_safe_for_dispatch, "1.83.0", Some(43561),
      Some("renamed to `dyn_compatible_for_dispatch`")),

compiler/rustc_feature/src/unstable.rs

@@ -272,7 +272,7 @@ declare_features! (
     (unstable, doc_notable_trait, "1.52.0", Some(45040)),
     /// Allows using the `may_dangle` attribute (RFC 1327).
     (unstable, dropck_eyepatch, "1.10.0", Some(34761)),
-    /// Allows making `dyn Trait` well-formed even if `Trait` is not dyn-compatible[^1].
+    /// Allows making `dyn Trait` well-formed even if `Trait` is not dyn compatible[^1].
     /// In that case, `dyn Trait: Trait` does not hold. Moreover, coercions and
     /// casts in safe Rust to `dyn Trait` for such a `Trait` is also forbidden.
     ///