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-rw-r--r--compiler/rustc_mir_transform/src/const_prop.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/const_prop.rs b/compiler/rustc_mir_transform/src/const_prop.rs
index fb5423dd157..acd9e605353 100644
--- a/compiler/rustc_mir_transform/src/const_prop.rs
+++ b/compiler/rustc_mir_transform/src/const_prop.rs
@@ -621,6 +621,7 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> {
             // There's no other checking to do at this time.
             Rvalue::Aggregate(..)
             | Rvalue::Use(..)
+            | Rvalue::CopyForDeref(..)
             | Rvalue::Repeat(..)
             | Rvalue::Len(..)
             | Rvalue::Cast(..)