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Fortify transmute check.

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This commit is contained in:
Camille GILLOT 2023-10-12 06:35:54 +00:00
parent fbf0a0c5ff
commit 59235a7907
1 changed files with 3 additions and 4 deletions
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7
compiler/rustc_mir_transform/src/gvn.rs
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@ -471,10 +471,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> {
// `offset` for immediates only supports scalar/scalar-pair ABIs,
// so bail out if the target is not one.
if value.as_mplace_or_imm().is_right() {
match to.abi {
Abi::Scalar(..) | Abi::ScalarPair(..) => {}
_ if to.is_zst() => {}
Abi::Aggregate { .. } if to.fields.count() == 0 => {}
match (value.layout.abi, to.abi) {
(Abi::Scalar(..), Abi::Scalar(..)) => {}
(Abi::ScalarPair(..), Abi::ScalarPair(..)) => {}
_ => return None,
}
}