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interpret: reset provenance on typed copies

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This commit is contained in:
Ralf Jung 2024-08-29 08:59:52 +02:00
parent 85dc22f2cf
commit cbdcbf0d6a
23 changed files with 489 additions and 135 deletions
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6
compiler/rustc_middle/src/mir/interpret/allocation.rs
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@ -644,6 +644,12 @@ impl<Prov: Provenance, Extra, Bytes: AllocBytes> Allocation<Prov, Extra, Bytes>
return Ok(());
}
/// Remove all provenance in the given memory range.
pub fn clear_provenance(&mut self, cx: &impl HasDataLayout, range: AllocRange) -> AllocResult {
self.provenance.clear(range, cx)?;
return Ok(());
}
/// Applies a previously prepared provenance copy.
/// The affected range, as defined in the parameters to `provenance().prepare_copy` is expected
/// to be clear of provenance.