1 files changed, 5 insertions, 0 deletions
diff --git a/src/jit/lir.cpp b/src/jit/lir.cpp
index a0a265d5ae..5a05e23c8e 100644
--- a/src/jit/lir.cpp
+++ b/src/jit/lir.cpp
@@ -1581,6 +1581,11 @@ bool LIR::Range::CheckLIR(Compiler* compiler, bool checkUnusedValues) const
         // Verify that the node is allowed in LIR.
         assert(node->IsLIR());
 
+        // Some nodes should never be marked unused, as they must be contained in the backend.
+        // These may be marked as unused during dead code elimination traversal, but they *must* be subsequently
+        // removed.
+        assert(!node->IsUnusedValue() || !node->OperIs(GT_FIELD_LIST, GT_LIST, GT_INIT_VAL));
+
         // Verify that the REVERSE_OPS flag is not set. NOTE: if we ever decide to reuse the bit assigned to
         // GTF_REVERSE_OPS for an LIR-only flag we will need to move this check to the points at which we
         // insert nodes into an LIR range.