1 files changed, 6 insertions, 0 deletions
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index bbd45067103..db86edcc785 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -1615,6 +1615,12 @@
         }
 
         case _ITER_CHECK_TUPLE: {
+            JitOptSymbol *iter;
+            iter = stack_pointer[-2];
+            if (sym_matches_type(iter, &PyTuple_Type)) {
+                REPLACE_OP(this_instr, _NOP, 0, 0);
+            }
+            sym_set_type(iter, &PyTuple_Type);
             break;
         }