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only set noalias on Box with the global allocator

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This commit is contained in:
Ralf Jung 2024-03-05 11:32:03 +01:00
parent 5a1e5449c8
commit f391c0793b
17 changed files with 75 additions and 28 deletions
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7
compiler/rustc_abi/src/lib.rs
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@ -1612,8 +1612,9 @@ pub enum PointerKind {
SharedRef { frozen: bool },
/// Mutable reference. `unpin` indicates the absence of any pinned data.
MutableRef { unpin: bool },
/// Box. `unpin` indicates the absence of any pinned data.
Box { unpin: bool },
/// Box. `unpin` indicates the absence of any pinned data. `global` indicates whether this box
/// uses the global allocator or a custom one.
Box { unpin: bool, global: bool },
}
/// Note that this information is advisory only, and backends are free to ignore it.
@ -1622,6 +1623,8 @@ pub enum PointerKind {
pub struct PointeeInfo {
pub size: Size,
pub align: Align,
/// If this is `None`, then this is a raw pointer, so size and alignment are not guaranteed to
/// be reliable.
pub safe: Option<PointerKind>,
}