[pull] master from rust-lang:master

.mailmap

@@ -81,6 +81,7 @@ boolean_coercion <booleancoercion@gmail.com>
 Boris Egorov <jightuse@gmail.com> <egorov@linux.com>
 bors <bors@rust-lang.org> bors[bot] <26634292+bors[bot]@users.noreply.github.com>
 bors <bors@rust-lang.org> bors[bot] <bors[bot]@users.noreply.github.com>
+Boxy <rust@boxyuwu.dev> <supbscripter@gmail.com>
 Braden Nelson <moonheart08@users.noreply.github.com>
 Brandon Sanderson <singingboyo@gmail.com> Brandon Sanderson <singingboyo@hotmail.com>
 Brett Cannon <brett@python.org> Brett Cannon <brettcannon@users.noreply.github.com>
@@ -146,6 +147,7 @@ David Klein <david.klein@baesystemsdetica.com>
 David Manescu <david.manescu@gmail.com> <dman2626@uni.sydney.edu.au>
 David Ross <daboross@daboross.net>
 David Wood <david@davidtw.co> <david.wood@huawei.com>
+David Wood <david@davidtw.co> <david.wood2@arm.com>
 Deadbeef <ent3rm4n@gmail.com>
 Deadbeef <ent3rm4n@gmail.com> <fee1-dead-beef@protonmail.com>
 dependabot[bot] <dependabot[bot]@users.noreply.github.com> <27856297+dependabot-preview[bot]@users.noreply.github.com>

Cargo.lock

@@ -199,7 +199,7 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "01667f6f40216b9a0b2945e05fed5f1ad0ab6470e69cb9378001e37b1c0668e4"
 dependencies = [
- "object 0.36.3",
+ "object 0.36.4",
 ]
 
 [[package]]
@@ -2453,17 +2453,17 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.36.3"
+version = "0.36.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27b64972346851a39438c60b341ebc01bba47464ae329e55cf343eb93964efd9"
+checksum = "084f1a5821ac4c651660a94a7153d27ac9d8a53736203f58b31945ded098070a"
 dependencies = [
  "crc32fast",
  "flate2",
  "hashbrown",
  "indexmap",
  "memchr",
  "ruzstd 0.7.0",
- "wasmparser 0.215.0",
+ "wasmparser",
 ]
 
 [[package]]
@@ -3129,11 +3129,11 @@ dependencies = [
  "build_helper",
  "gimli 0.31.0",
  "libc",
- "object 0.36.3",
+ "object 0.36.4",
  "regex",
  "serde_json",
  "similar",
- "wasmparser 0.216.0",
+ "wasmparser",
 ]
 
 [[package]]
@@ -3408,7 +3408,7 @@ dependencies = [
  "itertools",
  "libc",
  "measureme",
- "object 0.36.3",
+ "object 0.36.4",
  "rustc-demangle",
  "rustc_ast",
  "rustc_attr",
@@ -3447,7 +3447,7 @@ dependencies = [
  "itertools",
  "jobserver",
  "libc",
- "object 0.36.3",
+ "object 0.36.4",
  "pathdiff",
  "regex",
  "rustc_arena",
@@ -4431,7 +4431,7 @@ name = "rustc_target"
 version = "0.0.0"
 dependencies = [
  "bitflags 2.6.0",
- "object 0.36.3",
+ "object 0.36.4",
  "rustc_abi",
  "rustc_data_structures",
  "rustc_feature",
@@ -5849,7 +5849,7 @@ dependencies = [
  "lexopt",
  "tempfile",
  "wasi-preview1-component-adapter-provider",
- "wasmparser 0.216.0",
+ "wasmparser",
  "wat",
  "wit-component",
  "wit-parser",
@@ -5869,7 +5869,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04c23aebea22c8a75833ae08ed31ccc020835b12a41999e58c31464271b94a88"
 dependencies = [
  "leb128",
- "wasmparser 0.216.0",
+ "wasmparser",
 ]
 
 [[package]]
@@ -5885,16 +5885,7 @@ dependencies = [
  "serde_json",
  "spdx",
  "wasm-encoder",
- "wasmparser 0.216.0",
-]
-
-[[package]]
-name = "wasmparser"
-version = "0.215.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53fbde0881f24199b81cf49b6ff8f9c145ac8eb1b7fc439adb5c099734f7d90e"
-dependencies = [
- "bitflags 2.6.0",
+ "wasmparser",
 ]
 
 [[package]]
@@ -6228,7 +6219,7 @@ dependencies = [
  "serde_json",
  "wasm-encoder",
  "wasm-metadata",
- "wasmparser 0.216.0",
+ "wasmparser",
  "wit-parser",
 ]
 
@@ -6247,7 +6238,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-xid",
- "wasmparser 0.216.0",
+ "wasmparser",
 ]
 
 [[package]]

compiler/rustc_ast_lowering/src/delegation.rs

@@ -72,7 +72,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
     fn has_self(&self, def_id: DefId, span: Span) -> bool {
         if let Some(local_sig_id) = def_id.as_local() {
             // The value may be missing due to recursive delegation.
-            // Error will be emmited later during HIR ty lowering.
+            // Error will be emitted later during HIR ty lowering.
             self.resolver.delegation_fn_sigs.get(&local_sig_id).map_or(false, |sig| sig.has_self)
         } else {
             match self.tcx.def_kind(def_id) {
@@ -139,7 +139,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
     fn param_count(&self, sig_id: DefId) -> (usize, bool /*c_variadic*/) {
         if let Some(local_sig_id) = sig_id.as_local() {
             // Map may be filled incorrectly due to recursive delegation.
-            // Error will be emmited later during HIR ty lowering.
+            // Error will be emitted later during HIR ty lowering.
             match self.resolver.delegation_fn_sigs.get(&local_sig_id) {
                 Some(sig) => (sig.param_count, sig.c_variadic),
                 None => (0, false),

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -1179,7 +1179,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, '_, 'infcx, 'tcx> {
         for field in &variant.fields {
             // In practice unless there are more than one field with the same type, we'll be
             // suggesting a single field at a type, because we don't aggregate multiple borrow
-            // checker errors involving the functional record update sytnax into a single one.
+            // checker errors involving the functional record update syntax into a single one.
             let field_ty = field.ty(self.infcx.tcx, args);
             let ident = field.ident(self.infcx.tcx);
             if field_ty == ty && fields.iter().all(|field| field.ident.name != ident.name) {

compiler/rustc_borrowck/src/type_check/liveness/trace.rs

@@ -218,7 +218,7 @@ impl<'a, 'me, 'typeck, 'flow, 'tcx> LivenessResults<'a, 'me, 'typeck, 'flow, 'tc
         // This collect is more necessary than immediately apparent
         // because these facts go into `add_drop_live_facts_for()`,
         // which also writes to `all_facts`, and so this is genuinely
-        // a simulatneous overlapping mutable borrow.
+        // a simultaneous overlapping mutable borrow.
         // FIXME for future hackers: investigate whether this is
         // actually necessary; these facts come from Polonius
         // and probably maybe plausibly does not need to go back in.

compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs

@@ -422,7 +422,7 @@ fn prepare_usage_sets<'tcx>(tcx: TyCtxt<'tcx>) -> UsageSets<'tcx> {
             (instance.def_id(), body)
         });
 
-    // Functions whose coverage statments were found inlined into other functions.
+    // Functions whose coverage statements were found inlined into other functions.
     let mut used_via_inlining = FxHashSet::default();
     // Functions that were instrumented, but had all of their coverage statements
     // removed by later MIR transforms (e.g. UnreachablePropagation).

compiler/rustc_codegen_ssa/src/codegen_attrs.rs

@@ -1,6 +1,5 @@
 use rustc_ast::{ast, attr, MetaItemKind, NestedMetaItem};
 use rustc_attr::{list_contains_name, InlineAttr, InstructionSetAttr, OptimizeAttr};
-use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::codes::*;
 use rustc_errors::{struct_span_code_err, DiagMessage, SubdiagMessage};
 use rustc_hir as hir;
@@ -9,7 +8,7 @@ use rustc_hir::def_id::{DefId, LocalDefId, LOCAL_CRATE};
 use rustc_hir::weak_lang_items::WEAK_LANG_ITEMS;
 use rustc_hir::{lang_items, LangItem};
 use rustc_middle::middle::codegen_fn_attrs::{
-    CodegenFnAttrFlags, CodegenFnAttrs, PatchableFunctionEntry, TargetFeature,
+    CodegenFnAttrFlags, CodegenFnAttrs, PatchableFunctionEntry,
 };
 use rustc_middle::mir::mono::Linkage;
 use rustc_middle::query::Providers;
@@ -18,7 +17,6 @@ use rustc_session::lint;
 use rustc_session::parse::feature_err;
 use rustc_span::symbol::Ident;
 use rustc_span::{sym, Span};
-use rustc_target::abi::VariantIdx;
 use rustc_target::spec::{abi, SanitizerSet};
 
 use crate::errors;
@@ -80,26 +78,23 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs {
     let mut link_ordinal_span = None;
     let mut no_sanitize_span = None;
 
-    let fn_sig_outer = || {
-        use DefKind::*;
-
-        let def_kind = tcx.def_kind(did);
-        if let Fn | AssocFn | Variant | Ctor(..) = def_kind { Some(tcx.fn_sig(did)) } else { None }
-    };
-
     for attr in attrs.iter() {
         // In some cases, attribute are only valid on functions, but it's the `check_attr`
         // pass that check that they aren't used anywhere else, rather this module.
         // In these cases, we bail from performing further checks that are only meaningful for
         // functions (such as calling `fn_sig`, which ICEs if given a non-function). We also
         // report a delayed bug, just in case `check_attr` isn't doing its job.
         let fn_sig = || {
-            let sig = fn_sig_outer();
-            if sig.is_none() {
+            use DefKind::*;
+
+            let def_kind = tcx.def_kind(did);
+            if let Fn | AssocFn | Variant | Ctor(..) = def_kind {
+                Some(tcx.fn_sig(did))
+            } else {
                 tcx.dcx()
                     .span_delayed_bug(attr.span, "this attribute can only be applied to functions");
+                None
             }
-            sig
         };
 
         let Some(Ident { name, .. }) = attr.ident() else {
@@ -618,93 +613,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs {
         }
     }
 
-    if let Some(sig) = fn_sig_outer() {
-        // Collect target features from types reachable from arguments.
-        // We define a type as "reachable" if:
-        //  - it is a function argument
-        //  - it is a field of a reachable struct
-        //  - there is a reachable reference to it
-        // FIXME(struct_target_features): we may want to cache the result of this computation.
-        let mut visited_types = FxHashSet::default();
-        let mut reachable_types: Vec<_> = sig.skip_binder().inputs().skip_binder().to_owned();
-        let mut additional_tf = vec![];
-
-        while let Some(ty) = reachable_types.pop() {
-            if visited_types.contains(&ty) {
-                continue;
-            }
-            visited_types.insert(ty);
-            match ty.kind() {
-                ty::Alias(..) => {
-                    if let Ok(t) =
-                        tcx.try_normalize_erasing_regions(tcx.param_env(did.to_def_id()), ty)
-                    {
-                        reachable_types.push(t)
-                    }
-                }
-
-                ty::Ref(_, inner, _) => reachable_types.push(*inner),
-                ty::Tuple(tys) => reachable_types.extend(tys.iter()),
-                ty::Adt(adt_def, args) => {
-                    additional_tf.extend_from_slice(tcx.struct_target_features(adt_def.did()));
-                    // This only recurses into structs as i.e. an Option<TargetFeature> is an ADT
-                    // that doesn't actually always contain a TargetFeature.
-                    if adt_def.is_struct() {
-                        reachable_types.extend(
-                            adt_def
-                                .variant(VariantIdx::from_usize(0))
-                                .fields
-                                .iter()
-                                .map(|field| field.ty(tcx, args)),
-                        );
-                    }
-                }
-                ty::Bool
-                | ty::Char
-                | ty::Int(..)
-                | ty::Uint(..)
-                | ty::Float(..)
-                | ty::Foreign(..)
-                | ty::Str
-                | ty::Array(..)
-                | ty::Pat(..)
-                | ty::Slice(..)
-                | ty::RawPtr(..)
-                | ty::FnDef(..)
-                | ty::FnPtr(..)
-                | ty::Dynamic(..)
-                | ty::Closure(..)
-                | ty::CoroutineClosure(..)
-                | ty::Coroutine(..)
-                | ty::CoroutineWitness(..)
-                | ty::Never
-                | ty::Param(..)
-                | ty::Bound(..)
-                | ty::Placeholder(..)
-                | ty::Infer(..)
-                | ty::Error(..) => (),
-            }
-        }
-
-        // FIXME(struct_target_features): is this really necessary?
-        if !additional_tf.is_empty() && sig.skip_binder().abi() != abi::Abi::Rust {
-            tcx.dcx().span_err(
-                tcx.hir().span(tcx.local_def_id_to_hir_id(did)),
-                "cannot use a struct with target features in a function with non-Rust ABI",
-            );
-        }
-        if !additional_tf.is_empty() && codegen_fn_attrs.inline == InlineAttr::Always {
-            tcx.dcx().span_err(
-                tcx.hir().span(tcx.local_def_id_to_hir_id(did)),
-                "cannot use a struct with target features in a #[inline(always)] function",
-            );
-        }
-        codegen_fn_attrs
-            .target_features
-            .extend(additional_tf.iter().map(|tf| TargetFeature { implied: true, ..*tf }));
-    }
-
-    // If a function uses non-default target_features it can't be inlined into general
+    // If a function uses #[target_feature] it can't be inlined into general
     // purpose functions as they wouldn't have the right target features
     // enabled. For that reason we also forbid #[inline(always)] as it can't be
     // respected.
@@ -849,20 +758,6 @@ fn check_link_name_xor_ordinal(
     }
 }
 
-fn struct_target_features(tcx: TyCtxt<'_>, def_id: LocalDefId) -> &[TargetFeature] {
-    let mut features = vec![];
-    let supported_features = tcx.supported_target_features(LOCAL_CRATE);
-    for attr in tcx.get_attrs(def_id, sym::target_feature) {
-        from_target_feature(tcx, attr, supported_features, &mut features);
-    }
-    tcx.arena.alloc_slice(&features)
-}
-
 pub fn provide(providers: &mut Providers) {
-    *providers = Providers {
-        codegen_fn_attrs,
-        should_inherit_track_caller,
-        struct_target_features,
-        ..*providers
-    };
+    *providers = Providers { codegen_fn_attrs, should_inherit_track_caller, ..*providers };
 }

compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs

@@ -701,7 +701,7 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
             match ty.kind() {
                 ty::Int(ity) => {
                     // FIXME: directly extract the bits from a valtree instead of evaluating an
-                    // alreay evaluated `Const` in order to get the bits.
+                    // already evaluated `Const` in order to get the bits.
                     let bits = ct.eval_bits(tcx, ty::ParamEnv::reveal_all());
                     let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
                     write!(output, "{val}")

compiler/rustc_const_eval/src/check_consts/check.rs

@@ -46,7 +46,7 @@ impl<'mir, 'tcx> Qualifs<'mir, 'tcx> {
     /// Returns `true` if `local` is `NeedsDrop` at the given `Location`.
     ///
     /// Only updates the cursor if absolutely necessary
-    pub fn needs_drop(
+    fn needs_drop(
         &mut self,
         ccx: &'mir ConstCx<'mir, 'tcx>,
         local: Local,
@@ -76,7 +76,7 @@ impl<'mir, 'tcx> Qualifs<'mir, 'tcx> {
     /// Returns `true` if `local` is `NeedsNonConstDrop` at the given `Location`.
     ///
     /// Only updates the cursor if absolutely necessary
-    pub fn needs_non_const_drop(
+    pub(crate) fn needs_non_const_drop(
         &mut self,
         ccx: &'mir ConstCx<'mir, 'tcx>,
         local: Local,
@@ -106,7 +106,7 @@ impl<'mir, 'tcx> Qualifs<'mir, 'tcx> {
     /// Returns `true` if `local` is `HasMutInterior` at the given `Location`.
     ///
     /// Only updates the cursor if absolutely necessary.
-    pub fn has_mut_interior(
+    fn has_mut_interior(
         &mut self,
         ccx: &'mir ConstCx<'mir, 'tcx>,
         local: Local,