trivial cfg(bootstrap) changes

Author: pietroalbini

compiler/rustc_llvm/src/lib.rs

@@ -1,5 +1,4 @@
 #![feature(nll)]
-#![cfg_attr(bootstrap, feature(native_link_modifiers))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 
 // NOTE: This crate only exists to allow linking on mingw targets.

compiler/rustc_middle/src/mir/interpret/allocation.rs

@@ -58,7 +58,7 @@ pub struct Allocation<Tag = AllocId, Extra = ()> {
 /// means that both the inner type (`Allocation`) and the outer type
 /// (`ConstAllocation`) are used quite a bit.
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, HashStable)]
-#[cfg_attr(not(bootstrap), rustc_pass_by_value)]
+#[rustc_pass_by_value]
 pub struct ConstAllocation<'tcx, Tag = AllocId, Extra = ()>(
     pub Interned<'tcx, Allocation<Tag, Extra>>,
 );

compiler/rustc_middle/src/ty/adt.rs

@@ -161,7 +161,7 @@ impl<'a> HashStable<StableHashingContext<'a>> for AdtDefData {
 }
 
 #[derive(Copy, Clone, PartialEq, Eq, Hash, Ord, PartialOrd, HashStable)]
-#[cfg_attr(not(bootstrap), rustc_pass_by_value)]
+#[rustc_pass_by_value]
 pub struct AdtDef<'tcx>(pub Interned<'tcx, AdtDefData>);
 
 impl<'tcx> AdtDef<'tcx> {

compiler/rustc_target/src/abi/mod.rs

@@ -1262,7 +1262,7 @@ impl<'a> fmt::Debug for LayoutS<'a> {
 }
 
 #[derive(Copy, Clone, PartialEq, Eq, Hash, HashStable_Generic)]
-#[cfg_attr(not(bootstrap), rustc_pass_by_value)]
+#[rustc_pass_by_value]
 pub struct Layout<'a>(pub Interned<'a, LayoutS<'a>>);
 
 impl<'a> fmt::Debug for Layout<'a> {

library/alloc/src/alloc.rs

@@ -326,16 +326,12 @@ unsafe fn exchange_malloc(size: usize, align: usize) -> *mut u8 {
 #[cfg_attr(not(test), lang = "box_free")]
 #[inline]
 #[rustc_const_unstable(feature = "const_box", issue = "92521")]
-#[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
 // This signature has to be the same as `Box`, otherwise an ICE will happen.
 // When an additional parameter to `Box` is added (like `A: Allocator`), this has to be added here as
 // well.
 // For example if `Box` is changed to  `struct Box<T: ?Sized, A: Allocator>(Unique<T>, A)`,
 // this function has to be changed to `fn box_free<T: ?Sized, A: Allocator>(Unique<T>, A)` as well.
-pub(crate) const unsafe fn box_free<
-    T: ?Sized,
-    A: ~const Allocator + ~const Drop + ~const Destruct,
->(
+pub(crate) const unsafe fn box_free<T: ?Sized, A: ~const Allocator + ~const Destruct>(
     ptr: Unique<T>,
     alloc: A,
 ) {

library/alloc/src/borrow.rs

@@ -331,7 +331,6 @@ impl<B: ?Sized + ToOwned> Cow<'_, B> {
 
 #[stable(feature = "rust1", since = "1.0.0")]
 #[rustc_const_unstable(feature = "const_deref", issue = "88955")]
-#[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
 impl<B: ?Sized + ToOwned> const Deref for Cow<'_, B>
 where
     B::Owned: ~const Borrow<B>,

library/alloc/src/boxed.rs

@@ -349,10 +349,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
     #[must_use]
     #[inline]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn new_in(x: T, alloc: A) -> Self
     where
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let mut boxed = Self::new_uninit_in(alloc);
         unsafe {
@@ -379,11 +378,10 @@ impl<T, A: Allocator> Box<T, A> {
     #[unstable(feature = "allocator_api", issue = "32838")]
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
     #[inline]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn try_new_in(x: T, alloc: A) -> Result<Self, AllocError>
     where
-        T: ~const Drop + ~const Destruct,
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        T: ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let mut boxed = Self::try_new_uninit_in(alloc)?;
         unsafe {
@@ -417,10 +415,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[cfg(not(no_global_oom_handling))]
     #[must_use]
     // #[unstable(feature = "new_uninit", issue = "63291")]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn new_uninit_in(alloc: A) -> Box<mem::MaybeUninit<T>, A>
     where
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let layout = Layout::new::<mem::MaybeUninit<T>>();
         // NOTE: Prefer match over unwrap_or_else since closure sometimes not inlineable.
@@ -456,10 +453,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[unstable(feature = "allocator_api", issue = "32838")]
     // #[unstable(feature = "new_uninit", issue = "63291")]
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn try_new_uninit_in(alloc: A) -> Result<Box<mem::MaybeUninit<T>, A>, AllocError>
     where
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let layout = Layout::new::<mem::MaybeUninit<T>>();
         let ptr = alloc.allocate(layout)?.cast();
@@ -491,10 +487,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[cfg(not(no_global_oom_handling))]
     // #[unstable(feature = "new_uninit", issue = "63291")]
     #[must_use]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn new_zeroed_in(alloc: A) -> Box<mem::MaybeUninit<T>, A>
     where
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let layout = Layout::new::<mem::MaybeUninit<T>>();
         // NOTE: Prefer match over unwrap_or_else since closure sometimes not inlineable.
@@ -530,10 +525,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[unstable(feature = "allocator_api", issue = "32838")]
     // #[unstable(feature = "new_uninit", issue = "63291")]
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn try_new_zeroed_in(alloc: A) -> Result<Box<mem::MaybeUninit<T>, A>, AllocError>
     where
-        A: ~const Allocator + ~const Drop + ~const Destruct,
+        A: ~const Allocator + ~const Destruct,
     {
         let layout = Layout::new::<mem::MaybeUninit<T>>();
         let ptr = alloc.allocate_zeroed(layout)?.cast();
@@ -547,10 +541,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
     #[must_use]
     #[inline(always)]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn pin_in(x: T, alloc: A) -> Pin<Self>
     where
-        A: 'static + ~const Allocator + ~const Drop + ~const Destruct,
+        A: 'static + ~const Allocator + ~const Destruct,
     {
         Self::into_pin(Self::new_in(x, alloc))
     }
@@ -579,10 +572,9 @@ impl<T, A: Allocator> Box<T, A> {
     #[unstable(feature = "box_into_inner", issue = "80437")]
     #[rustc_const_unstable(feature = "const_box", issue = "92521")]
     #[inline]
-    #[cfg_attr(not(bootstrap), allow(drop_bounds))] // FIXME remove `~const Drop` and this attr when bumping
     pub const fn into_inner(boxed: Self) -> T
     where
-        Self: ~const Drop + ~const Destruct,
+        Self: ~const Destruct,
     {
         *boxed
     }

library/alloc/src/lib.rs

@@ -141,7 +141,6 @@
 #![feature(box_syntax)]
 #![feature(cfg_sanitize)]
 #![feature(const_deref)]
-#![cfg_attr(bootstrap, feature(const_fn_trait_bound))]
 #![feature(const_mut_refs)]
 #![feature(const_ptr_write)]
 #![feature(const_precise_live_drops)]

library/alloc/src/slice.rs

@@ -237,7 +237,6 @@ mod hack {
     }
 }
 
-#[cfg_attr(bootstrap, lang = "slice_alloc")]
 #[cfg(not(test))]
 impl<T> [T] {
     /// Sorts the slice.
@@ -267,7 +266,7 @@ impl<T> [T] {
     /// assert!(v == [-5, -3, 1, 2, 4]);
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     pub fn sort(&mut self)
@@ -323,7 +322,7 @@ impl<T> [T] {
     /// assert!(v == [5, 4, 3, 2, 1]);
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     pub fn sort_by<F>(&mut self, mut compare: F)
@@ -365,7 +364,7 @@ impl<T> [T] {
     /// assert!(v == [1, 2, -3, 4, -5]);
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "slice_sort_by_key", since = "1.7.0")]
     #[inline]
     pub fn sort_by_key<K, F>(&mut self, mut f: F)
@@ -412,7 +411,7 @@ impl<T> [T] {
     ///
     /// [pdqsort]: https://github.com/orlp/pdqsort
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "slice_sort_by_cached_key", since = "1.34.0")]
     #[inline]
     pub fn sort_by_cached_key<K, F>(&mut self, f: F)
@@ -471,7 +470,7 @@ impl<T> [T] {
     /// // Here, `s` and `x` can be modified independently.
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[rustc_conversion_suggestion]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
@@ -496,7 +495,7 @@ impl<T> [T] {
     /// // Here, `s` and `x` can be modified independently.
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[inline]
     #[unstable(feature = "allocator_api", issue = "32838")]
     pub fn to_vec_in<A: Allocator>(&self, alloc: A) -> Vec<T, A>
@@ -521,7 +520,7 @@ impl<T> [T] {
     ///
     /// assert_eq!(x, vec![10, 40, 30]);
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     pub fn into_vec<A: Allocator>(self: Box<Self, A>) -> Vec<T, A> {
@@ -549,7 +548,7 @@ impl<T> [T] {
     /// // this will panic at runtime
     /// b"0123456789abcdef".repeat(usize::MAX);
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[cfg(not(no_global_oom_handling))]
     #[stable(feature = "repeat_generic_slice", since = "1.40.0")]
     pub fn repeat(&self, n: usize) -> Vec<T>
@@ -618,7 +617,7 @@ impl<T> [T] {
     /// assert_eq!(["hello", "world"].concat(), "helloworld");
     /// assert_eq!([[1, 2], [3, 4]].concat(), [1, 2, 3, 4]);
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn concat<Item: ?Sized>(&self) -> <Self as Concat<Item>>::Output
     where
@@ -637,7 +636,7 @@ impl<T> [T] {
     /// assert_eq!([[1, 2], [3, 4]].join(&0), [1, 2, 0, 3, 4]);
     /// assert_eq!([[1, 2], [3, 4]].join(&[0, 0][..]), [1, 2, 0, 0, 3, 4]);
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rename_connect_to_join", since = "1.3.0")]
     pub fn join<Separator>(&self, sep: Separator) -> <Self as Join<Separator>>::Output
     where
@@ -656,7 +655,7 @@ impl<T> [T] {
     /// assert_eq!(["hello", "world"].connect(" "), "hello world");
     /// assert_eq!([[1, 2], [3, 4]].connect(&0), [1, 2, 0, 3, 4]);
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_deprecated(since = "1.3.0", reason = "renamed to join")]
     pub fn connect<Separator>(&self, sep: Separator) -> <Self as Join<Separator>>::Output
@@ -667,7 +666,6 @@ impl<T> [T] {
     }
 }
 
-#[cfg_attr(bootstrap, lang = "slice_u8_alloc")]
 #[cfg(not(test))]
 impl [u8] {
     /// Returns a vector containing a copy of this slice where each byte
@@ -680,7 +678,7 @@ impl [u8] {
     ///
     /// [`make_ascii_uppercase`]: slice::make_ascii_uppercase
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the uppercase bytes as a new Vec, \
                   without modifying the original"]
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]
@@ -701,7 +699,7 @@ impl [u8] {
     ///
     /// [`make_ascii_lowercase`]: slice::make_ascii_lowercase
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the lowercase bytes as a new Vec, \
                   without modifying the original"]
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]

library/alloc/src/str.rs

@@ -235,7 +235,6 @@ impl ToOwned for str {
 }
 
 /// Methods for string slices.
-#[cfg_attr(bootstrap, lang = "str_alloc")]
 #[cfg(not(test))]
 impl str {
     /// Converts a `Box<str>` into a `Box<[u8]>` without copying or allocating.
@@ -250,7 +249,7 @@ impl str {
     /// let boxed_bytes = boxed_str.into_boxed_bytes();
     /// assert_eq!(*boxed_bytes, *s.as_bytes());
     /// ```
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[stable(feature = "str_box_extras", since = "1.20.0")]
     #[must_use = "`self` will be dropped if the result is not used"]
     #[inline]
@@ -281,7 +280,7 @@ impl str {
     /// assert_eq!(s, s.replace("cookie monster", "little lamb"));
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the replaced string as a new allocation, \
                   without modifying the original"]
     #[stable(feature = "rust1", since = "1.0.0")]
@@ -322,7 +321,7 @@ impl str {
     /// assert_eq!(s, s.replacen("cookie monster", "little lamb", 10));
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the replaced string as a new allocation, \
                   without modifying the original"]
     #[stable(feature = "str_replacen", since = "1.16.0")]
@@ -379,7 +378,7 @@ impl str {
     /// assert_eq!(new_year, new_year.to_lowercase());
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the lowercase string as a new String, \
                   without modifying the original"]
     #[stable(feature = "unicode_case_mapping", since = "1.2.0")]
@@ -462,7 +461,7 @@ impl str {
     /// assert_eq!("TSCHÜSS", s.to_uppercase());
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "this returns the uppercase string as a new String, \
                   without modifying the original"]
     #[stable(feature = "unicode_case_mapping", since = "1.2.0")]
@@ -498,7 +497,7 @@ impl str {
     /// assert_eq!(boxed_str.into_string(), string);
     /// ```
     #[stable(feature = "box_str", since = "1.4.0")]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "`self` will be dropped if the result is not used"]
     #[inline]
     pub fn into_string(self: Box<str>) -> String {
@@ -527,7 +526,7 @@ impl str {
     /// let huge = "0123456789abcdef".repeat(usize::MAX);
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use]
     #[stable(feature = "repeat_str", since = "1.16.0")]
     pub fn repeat(&self, n: usize) -> String {
@@ -556,7 +555,7 @@ impl str {
     /// [`make_ascii_uppercase`]: str::make_ascii_uppercase
     /// [`to_uppercase`]: #method.to_uppercase
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "to uppercase the value in-place, use `make_ascii_uppercase()`"]
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]
     #[inline]
@@ -589,7 +588,7 @@ impl str {
     /// [`make_ascii_lowercase`]: str::make_ascii_lowercase
     /// [`to_lowercase`]: #method.to_lowercase
     #[cfg(not(no_global_oom_handling))]
-    #[cfg_attr(not(bootstrap), rustc_allow_incoherent_impl)]
+    #[rustc_allow_incoherent_impl]
     #[must_use = "to lowercase the value in-place, use `make_ascii_lowercase()`"]
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.23.0")]
     #[inline]

library/core/src/array/mod.rs

@@ -395,7 +395,6 @@ macro_rules! array_impl_default {
 
 array_impl_default! {32, T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T}
 
-#[cfg_attr(bootstrap, lang = "array")]
 impl<T, const N: usize> [T; N] {
     /// Returns an array of the same size as `self`, with function `f` applied to each element
     /// in order.