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miri: do not apply aliasing restrictions to Box with custom allocator

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This commit is contained in:
Ralf Jung 2024-03-09 13:05:13 +01:00
parent 1b427b3bf7
commit e632e3f9a5
12 changed files with 250 additions and 35 deletions
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7
compiler/rustc_middle/src/ty/sty.rs
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@ -2008,13 +2008,10 @@ impl<'tcx> Ty<'tcx> {
// Single-argument Box is always global. (for "minicore" tests)
return true;
};
if let Some(alloc_adt) = alloc.expect_ty().ty_adt_def() {
alloc.expect_ty().ty_adt_def().is_some_and(|alloc_adt| {
let global_alloc = tcx.require_lang_item(LangItem::GlobalAlloc, None);
alloc_adt.did() == global_alloc
} else {
// Allocator is not an ADT...
false
}
})
}
_ => false,
}