Rollup of 10 pull requests

compiler/rustc_builtin_macros/src/lib.rs

@@ -5,10 +5,10 @@
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(not(bootstrap), feature(autodiff))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(assert_matches)]
+#![feature(autodiff)]
 #![feature(box_patterns)]
 #![feature(decl_macro)]
 #![feature(if_let_guard)]

compiler/rustc_const_eval/src/util/caller_location.rs

@@ -21,13 +21,14 @@ fn alloc_caller_location<'tcx>(
     assert!(!filename.as_str().as_bytes().contains(&0));
 
     let loc_details = ecx.tcx.sess.opts.unstable_opts.location_detail;
-    let file_wide_ptr = {
+    let filename = {
         let filename = if loc_details.file { filename.as_str() } else { "<redacted>" };
         let filename_with_nul = filename.to_owned() + "\0";
         // This can fail if rustc runs out of memory right here. Trying to emit an error would be
         // pointless, since that would require allocating more memory than these short strings.
         let file_ptr = ecx.allocate_bytes_dedup(filename_with_nul.as_bytes()).unwrap();
-        Immediate::new_slice(file_ptr.into(), filename_with_nul.len().try_into().unwrap(), ecx)
+        let file_len = u64::try_from(filename.len()).unwrap();
+        Immediate::new_slice(file_ptr.into(), file_len, ecx)
     };
     let line = if loc_details.line { Scalar::from_u32(line) } else { Scalar::from_u32(0) };
     let col = if loc_details.column { Scalar::from_u32(col) } else { Scalar::from_u32(0) };
@@ -41,11 +42,8 @@ fn alloc_caller_location<'tcx>(
     let location = ecx.allocate(loc_layout, MemoryKind::CallerLocation).unwrap();
 
     // Initialize fields.
-    ecx.write_immediate(
-        file_wide_ptr,
-        &ecx.project_field(&location, FieldIdx::from_u32(0)).unwrap(),
-    )
-    .expect("writing to memory we just allocated cannot fail");
+    ecx.write_immediate(filename, &ecx.project_field(&location, FieldIdx::from_u32(0)).unwrap())
+        .expect("writing to memory we just allocated cannot fail");
     ecx.write_scalar(line, &ecx.project_field(&location, FieldIdx::from_u32(1)).unwrap())
         .expect("writing to memory we just allocated cannot fail");
     ecx.write_scalar(col, &ecx.project_field(&location, FieldIdx::from_u32(2)).unwrap())

compiler/rustc_data_structures/src/aligned.rs

@@ -1,7 +1,6 @@
+use std::marker::PointeeSized;
 use std::ptr::Alignment;
 
-use rustc_serialize::PointeeSized;
-
 /// Returns the ABI-required minimum alignment of a type in bytes.
 ///
 /// This is equivalent to [`align_of`], but also works for some unsized

compiler/rustc_data_structures/src/flock.rs

@@ -4,18 +4,7 @@
 //! green/native threading. This is just a bare-bones enough solution for
 //! librustdoc, it is not production quality at all.
 
-// cfg(bootstrap)
-macro_rules! cfg_select_dispatch {
-    ($($tokens:tt)*) => {
-        #[cfg(bootstrap)]
-        cfg_match! { $($tokens)* }
-
-        #[cfg(not(bootstrap))]
-        cfg_select! { $($tokens)* }
-    };
-}
-
-cfg_select_dispatch! {
+cfg_select! {
     target_os = "linux" => {
         mod linux;
         use linux as imp;

compiler/rustc_data_structures/src/lib.rs

@@ -10,9 +10,6 @@
 #![allow(internal_features)]
 #![allow(rustc::default_hash_types)]
 #![allow(rustc::potential_query_instability)]
-#![cfg_attr(bootstrap, feature(cfg_match))]
-#![cfg_attr(not(bootstrap), feature(cfg_select))]
-#![cfg_attr(not(bootstrap), feature(sized_hierarchy))]
 #![deny(unsafe_op_in_unsafe_fn)]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
@@ -22,6 +19,7 @@
 #![feature(ascii_char_variants)]
 #![feature(assert_matches)]
 #![feature(auto_traits)]
+#![feature(cfg_select)]
 #![feature(core_intrinsics)]
 #![feature(dropck_eyepatch)]
 #![feature(extend_one)]
@@ -33,6 +31,7 @@
 #![feature(ptr_alignment_type)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
+#![feature(sized_hierarchy)]
 #![feature(test)]
 #![feature(thread_id_value)]
 #![feature(type_alias_impl_trait)]
@@ -44,9 +43,6 @@ use std::fmt;
 pub use atomic_ref::AtomicRef;
 pub use ena::{snapshot_vec, undo_log, unify};
 pub use rustc_index::static_assert_size;
-// re-exported for `rustc_smir`
-// FIXME(sized_hierarchy): remove with `cfg(bootstrap)`, see `rustc_serialize/src/lib.rs`
-pub use rustc_serialize::PointeeSized;
 
 pub mod aligned;
 pub mod base_n;

compiler/rustc_data_structures/src/marker.rs

@@ -1,6 +1,5 @@
 use std::alloc::Allocator;
-
-use rustc_serialize::PointeeSized;
+use std::marker::PointeeSized;
 
 #[diagnostic::on_unimplemented(message = "`{Self}` doesn't implement `DynSend`. \
             Add it to `rustc_data_structures::marker` or use `IntoDynSyncSend` if it's already `Send`")]

compiler/rustc_data_structures/src/profiling.rs

@@ -859,19 +859,8 @@ fn get_thread_id() -> u32 {
     std::thread::current().id().as_u64().get() as u32
 }
 
-// cfg(bootstrap)
-macro_rules! cfg_select_dispatch {
-    ($($tokens:tt)*) => {
-        #[cfg(bootstrap)]
-        cfg_match! { $($tokens)* }
-
-        #[cfg(not(bootstrap))]
-        cfg_select! { $($tokens)* }
-    };
-}
-
 // Memory reporting
-cfg_select_dispatch! {
+cfg_select! {
     windows => {
         pub fn get_resident_set_size() -> Option<usize> {
             use windows::{

compiler/rustc_errors/src/lib.rs

@@ -6,8 +6,8 @@
 #![allow(incomplete_features)]
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
+#![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(not(bootstrap), allow(rustc::direct_use_of_rustc_type_ir))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(array_windows)]

compiler/rustc_feature/src/accepted.rs

@@ -83,7 +83,7 @@ declare_features! (
     /// Allows overloading augmented assignment operations like `a += b`.
     (accepted, augmented_assignments, "1.8.0", Some(28235)),
     /// Allows using `avx512*` target features.
-    (accepted, avx512_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (accepted, avx512_target_feature, "1.89.0", Some(44839)),
     /// Allows mixing bind-by-move in patterns and references to those identifiers in guards.
     (accepted, bind_by_move_pattern_guards, "1.39.0", Some(15287)),
     /// Allows bindings in the subpattern of a binding pattern.
@@ -221,7 +221,7 @@ declare_features! (
     /// Allows capturing variables in scope using format_args!
     (accepted, format_args_capture, "1.58.0", Some(67984)),
     /// Infer generic args for both consts and types.
-    (accepted, generic_arg_infer, "CURRENT_RUSTC_VERSION", Some(85077)),
+    (accepted, generic_arg_infer, "1.89.0", Some(85077)),
     /// Allows associated types to be generic, e.g., `type Foo<T>;` (RFC 1598).
     (accepted, generic_associated_types, "1.65.0", Some(44265)),
     /// Allows attributes on lifetime/type formal parameters in generics (RFC 1327).
@@ -262,7 +262,7 @@ declare_features! (
     /// especially around globs and shadowing (RFC 1560).
     (accepted, item_like_imports, "1.15.0", Some(35120)),
     // Allows using the `kl` and `widekl` target features and the associated intrinsics
-    (accepted, keylocker_x86, "CURRENT_RUSTC_VERSION", Some(134813)),
+    (accepted, keylocker_x86, "1.89.0", Some(134813)),
     /// Allows `'a: { break 'a; }`.
     (accepted, label_break_value, "1.65.0", Some(48594)),
     /// Allows `let...else` statements.
@@ -365,7 +365,7 @@ declare_features! (
     /// Lessens the requirements for structs to implement `Unsize`.
     (accepted, relaxed_struct_unsize, "1.58.0", Some(81793)),
     /// Allows the `#[repr(i128)]` attribute for enums.
-    (accepted, repr128, "CURRENT_RUSTC_VERSION", Some(56071)),
+    (accepted, repr128, "1.89.0", Some(56071)),
     /// Allows `repr(align(16))` struct attribute (RFC 1358).
     (accepted, repr_align, "1.25.0", Some(33626)),
     /// Allows using `#[repr(align(X))]` on enums with equivalent semantics
@@ -387,7 +387,7 @@ declare_features! (
     /// Allows `Self` struct constructor (RFC 2302).
     (accepted, self_struct_ctor, "1.32.0", Some(51994)),
     /// Allows use of x86 SHA512, SM3 and SM4 target-features and intrinsics
-    (accepted, sha512_sm_x86, "CURRENT_RUSTC_VERSION", Some(126624)),
+    (accepted, sha512_sm_x86, "1.89.0", Some(126624)),
     /// Shortern the tail expression lifetime
     (accepted, shorter_tail_lifetimes, "1.84.0", Some(123739)),
     /// Allows using subslice patterns, `[a, .., b]` and `[a, xs @ .., b]`.

compiler/rustc_feature/src/removed.rs

@@ -222,7 +222,7 @@ declare_features! (
     /// Allows exhaustive integer pattern matching with `usize::MAX`/`isize::MIN`/`isize::MAX`.
     (removed, precise_pointer_size_matching, "1.76.0", Some(56354),
      Some("removed in favor of half-open ranges"), 118598),
-    (removed, pref_align_of, "CURRENT_RUSTC_VERSION", Some(91971),
+    (removed, pref_align_of, "1.89.0", Some(91971),
      Some("removed due to marginal use and inducing compiler complications")),
     (removed, proc_macro_expr, "1.27.0", Some(54727),
      Some("subsumed by `#![feature(proc_macro_hygiene)]`"), 52121),
@@ -265,7 +265,7 @@ declare_features! (
     (removed, unnamed_fields, "1.83.0", Some(49804), Some("feature needs redesign"), 131045),
     (removed, unsafe_no_drop_flag, "1.0.0", None, None),
     /// Allows unsized rvalues at arguments and parameters.
-    (removed, unsized_locals, "CURRENT_RUSTC_VERSION", Some(48055), Some("removed due to implementation concerns; see https://github.com/rust-lang/rust/issues/111942")),
+    (removed, unsized_locals, "1.89.0", Some(48055), Some("removed due to implementation concerns; see https://github.com/rust-lang/rust/issues/111942")),
     (removed, unsized_tuple_coercion, "1.87.0", Some(42877),
      Some("The feature restricts possible layouts for tuples, and this restriction is not worth it."), 137728),
     /// Allows `union` fields that don't implement `Copy` as long as they don't have any drop glue.

compiler/rustc_feature/src/unstable.rs

@@ -238,7 +238,7 @@ declare_features! (
     /// Allows using `rustc_*` attributes (RFC 572).
     (internal, rustc_attrs, "1.0.0", None),
     /// Introduces a hierarchy of `Sized` traits (RFC 3729).
-    (unstable, sized_hierarchy, "CURRENT_RUSTC_VERSION", None),
+    (unstable, sized_hierarchy, "1.89.0", None),
     /// Allows using the `#[stable]` and `#[unstable]` attributes.
     (internal, staged_api, "1.0.0", None),
     /// Added for testing unstable lints; perma-unstable.
@@ -356,7 +356,7 @@ declare_features! (
     /// Allows `extern "cmse-nonsecure-call" fn()`.
     (unstable, abi_cmse_nonsecure_call, "CURRENT_RUSTC_VERSION", Some(81391)),
     /// Allows `extern "custom" fn()`.
-    (unstable, abi_custom, "CURRENT_RUSTC_VERSION", Some(140829)),
+    (unstable, abi_custom, "1.89.0", Some(140829)),
     /// Allows `extern "gpu-kernel" fn()`.
     (unstable, abi_gpu_kernel, "1.86.0", Some(135467)),
     /// Allows `extern "msp430-interrupt" fn()`.
@@ -376,7 +376,7 @@ declare_features! (
     /// Allows inherent and trait methods with arbitrary self types that are raw pointers.
     (unstable, arbitrary_self_types_pointers, "1.83.0", Some(44874)),
     /// Allows #[cfg(...)] on inline assembly templates and operands.
-    (unstable, asm_cfg, "CURRENT_RUSTC_VERSION", Some(140364)),
+    (unstable, asm_cfg, "1.89.0", Some(140364)),
     /// Enables experimental inline assembly support for additional architectures.
     (unstable, asm_experimental_arch, "1.58.0", Some(93335)),
     /// Enables experimental register support in inline assembly.

compiler/rustc_infer/src/lib.rs

@@ -15,8 +15,8 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
+#![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(not(bootstrap), allow(rustc::direct_use_of_rustc_type_ir))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(assert_matches)]

compiler/rustc_macros/src/symbols.rs

@@ -190,17 +190,6 @@ fn symbols_with_errors(input: TokenStream) -> (TokenStream, Vec<syn::Error>) {
     let mut symbols_stream = quote! {};
     let mut prefill_stream = quote! {};
     let mut entries = Entries::with_capacity(input.keywords.len() + input.symbols.len() + 10);
-    let mut prev_key: Option<(Span, String)> = None;
-
-    let mut check_order = |span: Span, s: &str, errors: &mut Errors| {
-        if let Some((prev_span, ref prev_str)) = prev_key {
-            if s < prev_str {
-                errors.error(span, format!("Symbol `{s}` must precede `{prev_str}`"));
-                errors.error(prev_span, format!("location of previous symbol `{prev_str}`"));
-            }
-        }
-        prev_key = Some((span, s.to_string()));
-    };
 
     // Generate the listed keywords.
     for keyword in input.keywords.iter() {
@@ -219,7 +208,6 @@ fn symbols_with_errors(input: TokenStream) -> (TokenStream, Vec<syn::Error>) {
     // Generate the listed symbols.
     for symbol in input.symbols.iter() {
         let name = &symbol.name;
-        check_order(symbol.name.span(), &name.to_string(), &mut errors);
 
         let value = match &symbol.value {
             Value::SameAsName => name.to_string(),

compiler/rustc_macros/src/symbols/tests.rs

@@ -84,18 +84,3 @@ fn check_dup_symbol_and_keyword() {
     };
     test_symbols_macro(input, &["Symbol `splat` is duplicated", "location of previous definition"]);
 }
-
-#[test]
-fn check_symbol_order() {
-    let input = quote! {
-        Keywords {}
-        Symbols {
-            zebra,
-            aardvark,
-        }
-    };
-    test_symbols_macro(
-        input,
-        &["Symbol `aardvark` must precede `zebra`", "location of previous symbol `zebra`"],
-    );
-}

compiler/rustc_middle/src/lib.rs

@@ -27,9 +27,8 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
+#![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(not(bootstrap), allow(rustc::direct_use_of_rustc_type_ir))]
-#![cfg_attr(not(bootstrap), feature(sized_hierarchy))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(allocator_api)]
@@ -56,6 +55,7 @@
 #![feature(round_char_boundary)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
+#![feature(sized_hierarchy)]
 #![feature(try_blocks)]
 #![feature(try_trait_v2)]
 #![feature(try_trait_v2_yeet)]

compiler/rustc_middle/src/ty/codec.rs

@@ -8,12 +8,12 @@
 
 use std::hash::Hash;
 use std::intrinsics;
-use std::marker::DiscriminantKind;
+use std::marker::{DiscriminantKind, PointeeSized};
 
 use rustc_abi::{FieldIdx, VariantIdx};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::LocalDefId;
-use rustc_serialize::{Decodable, Encodable, PointeeSized};
+use rustc_serialize::{Decodable, Encodable};
 use rustc_span::source_map::Spanned;
 use rustc_span::{Span, SpanDecoder, SpanEncoder};
 

compiler/rustc_middle/src/ty/context.rs

@@ -10,7 +10,7 @@ use std::cmp::Ordering;
 use std::env::VarError;
 use std::ffi::OsStr;
 use std::hash::{Hash, Hasher};
-use std::marker::PhantomData;
+use std::marker::{PhantomData, PointeeSized};
 use std::ops::{Bound, Deref};
 use std::sync::{Arc, OnceLock};
 use std::{fmt, iter, mem};
@@ -43,7 +43,6 @@ use rustc_macros::{HashStable, TyDecodable, TyEncodable};
 use rustc_query_system::cache::WithDepNode;
 use rustc_query_system::dep_graph::DepNodeIndex;
 use rustc_query_system::ich::StableHashingContext;
-use rustc_serialize::PointeeSized;
 use rustc_serialize::opaque::{FileEncodeResult, FileEncoder};
 use rustc_session::config::CrateType;
 use rustc_session::cstore::{CrateStoreDyn, Untracked};

compiler/rustc_next_trait_solver/src/lib.rs

@@ -5,9 +5,9 @@
 //! So if you got to this crate from the old solver, it's totally normal.
 
 // tidy-alphabetical-start
+#![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::usage_of_type_ir_inherent)]
 #![allow(rustc::usage_of_type_ir_traits)]
-#![cfg_attr(not(bootstrap), allow(rustc::direct_use_of_rustc_type_ir))]
 // tidy-alphabetical-end
 
 pub mod canonicalizer;

compiler/rustc_serialize/src/lib.rs

@@ -3,7 +3,6 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::internal)]
-#![cfg_attr(not(bootstrap), feature(sized_hierarchy))]
 #![cfg_attr(test, feature(test))]
 #![doc(
     html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
@@ -15,6 +14,7 @@
 #![feature(min_specialization)]
 #![feature(never_type)]
 #![feature(rustdoc_internals)]
+#![feature(sized_hierarchy)]
 // tidy-alphabetical-end
 
 // Allows macros to refer to this crate as `::rustc_serialize`.
@@ -28,19 +28,3 @@ mod serialize;
 pub mod int_overflow;
 pub mod leb128;
 pub mod opaque;
-
-// This has nothing to do with `rustc_serialize` but it is convenient to define it in one place
-// for the rest of the compiler so that `cfg(bootstrap)` doesn't need to be littered throughout
-// the compiler wherever `PointeeSized` would be used. `rustc_serialize` happens to be the deepest
-// crate in the crate graph which uses `PointeeSized`.
-//
-// When bootstrap bumps, remove both the `cfg(not(bootstrap))` and `cfg(bootstrap)` lines below
-// and just import `std::marker::PointeeSized` whereever this item was used.
-
-#[cfg(not(bootstrap))]
-pub use std::marker::PointeeSized;
-
-#[cfg(bootstrap)]
-pub trait PointeeSized {}
-#[cfg(bootstrap)]
-impl<T: ?Sized> PointeeSized for T {}