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add_retag: ensure box-to-raw-ptr casts are preserved for Miri

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This commit is contained in:
Ralf Jung 2024-03-17 17:02:38 +01:00
parent a42873e85b
commit c96fa5e143
10 changed files with 91 additions and 33 deletions
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4
compiler/rustc_const_eval/src/transform/validate.rs
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@ -341,7 +341,7 @@ impl<'a, 'tcx> Visitor<'tcx> for CfgChecker<'a, 'tcx> {
// FIXME(JakobDegen) The validator should check that `self.mir_phase <
// DropsLowered`. However, this causes ICEs with generation of drop shims, which
// seem to fail to set their `MirPhase` correctly.
if matches!(kind, RetagKind::Raw | RetagKind::TwoPhase) {
if matches!(kind, RetagKind::TwoPhase) {
self.fail(location, format!("explicit `{kind:?}` is forbidden"));
}
}
@ -1272,7 +1272,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
// FIXME(JakobDegen) The validator should check that `self.mir_phase <
// DropsLowered`. However, this causes ICEs with generation of drop shims, which
// seem to fail to set their `MirPhase` correctly.
if matches!(kind, RetagKind::Raw | RetagKind::TwoPhase) {
if matches!(kind, RetagKind::TwoPhase) {
self.fail(location, format!("explicit `{kind:?}` is forbidden"));
}
}