MIR validation: reject in-place argument/return for packed fields

2023-08-24 11:34:23 +02:00
parent 0b31792ef1
commit 739144fc5b
3 changed files with 31 additions and 5 deletions
--- a/compiler/rustc_const_eval/src/util/alignment.rs
+++ b/compiler/rustc_const_eval/src/util/alignment.rs
@@ -34,13 +34,14 @@ where
            false
        }
        _ => {
+            // We cannot figure out the layout. Conservatively assume that this is disaligned.
            debug!("is_disaligned({:?}) - true", place);
            true
        }
    }
 }

-fn is_within_packed<'tcx, L>(
+pub fn is_within_packed<'tcx, L>(
    tcx: TyCtxt<'tcx>,
    local_decls: &L,
    place: Place<'tcx>,