Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 22 deletions

diff --git a/compiler/rustc_mir_dataflow/src/un_derefer.rs b/compiler/rustc_mir_dataflow/src/un_derefer.rs
deleted file mode 100644
index 7e6e25cc6..000000000
--- a/compiler/rustc_mir_dataflow/src/un_derefer.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-use rustc_data_structures::fx::FxHashMap;
-use rustc_middle::mir::*;
-use rustc_middle::ty::TyCtxt;
-
-/// Used for reverting changes made by `DerefSeparator`
-pub struct UnDerefer<'tcx> {
-    pub tcx: TyCtxt<'tcx>,
-    pub derefer_sidetable: FxHashMap<Local, Place<'tcx>>,
-}
-
-impl<'tcx> UnDerefer<'tcx> {
-    #[inline]
-    pub fn derefer(&self, place: PlaceRef<'tcx>, body: &Body<'tcx>) -> Option<Place<'tcx>> {
-        let reffed = self.derefer_sidetable.get(&place.local)?;
-
-        let new_place = reffed.project_deeper(place.projection, self.tcx);
-        if body.local_decls[new_place.local].is_deref_temp() {
-            return self.derefer(new_place.as_ref(), body);
-        }
-        Some(new_place)
-    }
-}