bjoernager/rust
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Add bits_for helper for tagged pointers & fixup docs

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This commit is contained in:
Maybe Waffle 2023-04-11 19:18:59 +00:00
parent d4be8efc62
commit c738dcc284
2 changed files with 43 additions and 17 deletions
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3
compiler/rustc_middle/src/ty/list.rs
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@ -1,4 +1,5 @@
use crate::arena::Arena;
use rustc_data_structures::tagged_ptr::bits_for;
use rustc_serialize::{Encodable, Encoder};
use std::alloc::Layout;
use std::cmp::Ordering;
@ -199,7 +200,7 @@ impl<'a, T: Copy> IntoIterator for &'a List<T> {
unsafe impl<T: Sync> Sync for List<T> {}
unsafe impl<'a, T: 'a> rustc_data_structures::tagged_ptr::Pointer for &'a List<T> {
const BITS: usize = std::mem::align_of::<usize>().trailing_zeros() as usize;
const BITS: usize = bits_for::<usize>();
#[inline]
fn into_usize(self) -> usize {