update cfg(bootstrap)s

1 files changed, 0 insertions, 144 deletions

diff --git a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs
index cafa91c8b8b..f17a0bf26d7 100644
--- a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs
+++ b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs
@@ -81,150 +81,6 @@
 ///     E::A,
 /// }
 /// ```
-#[cfg(bootstrap)]
-#[macro_export]
-macro_rules! impl_tag {
-    (
-        impl Tag for $Self:ty;
-        $(
-            $($path:ident)::* $( { $( $fields:tt )* })?,
-        )*
-    ) => {
-        // Safety:
-        // `bits_for_tags` is called on the same `${index()}`-es as
-        // `into_usize` returns, thus `BITS` constant is correct.
-        unsafe impl $crate::tagged_ptr::Tag for $Self {
-            const BITS: u32 = $crate::tagged_ptr::bits_for_tags(&[
-                $(
-                    ${index()},
-                    $( ${ignore(path)} )*
-                )*
-            ]);
-
-            #[inline]
-            fn into_usize(self) -> usize {
-                // This forbids use of repeating patterns (`Enum::V`&`Enum::V`, etc)
-                // (or at least it should, see <https://github.com/rust-lang/rust/issues/110613>)
-                #[forbid(unreachable_patterns)]
-                match self {
-                    // `match` is doing heavy lifting here, by requiring exhaustiveness
-                    $(
-                        $($path)::* $( { $( $fields )* } )? => ${index()},
-                    )*
-                }
-            }
-
-            #[inline]
-            unsafe fn from_usize(tag: usize) -> Self {
-                match tag {
-                    $(
-                        ${index()} => $($path)::* $( { $( $fields )* } )?,
-                    )*
-
-                    // Safety:
-                    // `into_usize` only returns `${index()}` of the same
-                    // repetition as we are filtering above, thus if this is
-                    // reached, the safety contract of this function was
-                    // already breached.
-                    _ => unsafe {
-                        debug_assert!(
-                            false,
-                            "invalid tag: {tag}\
-                             (this is a bug in the caller of `from_usize`)"
-                        );
-                        std::hint::unreachable_unchecked()
-                    },
-                }
-            }
-
-        }
-    };
-}
-
-/// Implements [`Tag`] for a given type.
-///
-/// You can use `impl_tag` on structs and enums.
-/// You need to specify the type and all its possible values,
-/// which can only be paths with optional fields.
-///
-/// [`Tag`]: crate::tagged_ptr::Tag
-///
-/// # Examples
-///
-/// Basic usage:
-///
-/// ```
-/// #![feature(macro_metavar_expr)]
-/// use rustc_data_structures::{impl_tag, tagged_ptr::Tag};
-///
-/// #[derive(Copy, Clone, PartialEq, Debug)]
-/// enum SomeTag {
-///     A,
-///     B,
-///     X { v: bool },
-///     Y(bool, bool),
-/// }
-///
-/// impl_tag! {
-///     // The type for which the `Tag` will be implemented
-///     impl Tag for SomeTag;
-///     // You need to specify all possible tag values:
-///     SomeTag::A, // 0
-///     SomeTag::B, // 1
-///     // For variants with fields, you need to specify the fields:
-///     SomeTag::X { v: true  }, // 2
-///     SomeTag::X { v: false }, // 3
-///     // For tuple variants use named syntax:
-///     SomeTag::Y { 0: true,  1: true  }, // 4
-///     SomeTag::Y { 0: false, 1: true  }, // 5
-///     SomeTag::Y { 0: true,  1: false }, // 6
-///     SomeTag::Y { 0: false, 1: false }, // 7
-/// }
-///
-/// // Tag values are assigned in order:
-/// assert_eq!(SomeTag::A.into_usize(), 0);
-/// assert_eq!(SomeTag::X { v: false }.into_usize(), 3);
-/// assert_eq!(SomeTag::Y(false, true).into_usize(), 5);
-///
-/// assert_eq!(unsafe { SomeTag::from_usize(1) }, SomeTag::B);
-/// assert_eq!(unsafe { SomeTag::from_usize(2) }, SomeTag::X { v: true });
-/// assert_eq!(unsafe { SomeTag::from_usize(7) }, SomeTag::Y(false, false));
-/// ```
-///
-/// Structs are supported:
-///
-/// ```
-/// #![feature(macro_metavar_expr)]
-/// # use rustc_data_structures::impl_tag;
-/// #[derive(Copy, Clone)]
-/// struct Flags { a: bool, b: bool }
-///
-/// impl_tag! {
-///     impl Tag for Flags;
-///     Flags { a: true,  b: true  },
-///     Flags { a: false, b: true  },
-///     Flags { a: true,  b: false },
-///     Flags { a: false, b: false },
-/// }
-/// ```
-///
-/// Not specifying all values results in a compile error:
-///
-/// ```compile_fail,E0004
-/// #![feature(macro_metavar_expr)]
-/// # use rustc_data_structures::impl_tag;
-/// #[derive(Copy, Clone)]
-/// enum E {
-///     A,
-///     B,
-/// }
-///
-/// impl_tag! {
-///     impl Tag for E;
-///     E::A,
-/// }
-/// ```
-#[cfg(not(bootstrap))]
 #[macro_export]
 macro_rules! impl_tag {
     (