1 files changed, 8 insertions, 4 deletions
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index 708b436f6e4..9811e9f348c 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -550,6 +550,10 @@ dummy_func(void) {
         value = sym_new_const(ctx, ptr);
     }
 
+    op(_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW, (ptr/4, unused, unused, unused, unused -- value)) {
+        value = sym_new_const(ctx, ptr);
+    }
+
     op(_COPY, (bottom, unused[oparg-1] -- bottom, unused[oparg-1], top)) {
         assert(oparg > 0);
         top = bottom;
@@ -901,12 +905,12 @@ dummy_func(void) {
             // known types, meaning we can deduce either True or False
 
             // The below check is equivalent to PyObject_TypeCheck(inst, cls)
+            PyObject *out = Py_False;
             if (inst_type == cls_o || PyType_IsSubtype(inst_type, cls_o)) {
-                sym_set_const(res, Py_True);
-            }
-            else {
-                sym_set_const(res, Py_False);
+                out = Py_True;
             }
+            sym_set_const(res, out);
+            REPLACE_OP(this_instr, _POP_CALL_TWO_LOAD_CONST_INLINE_BORROW, 0, (uintptr_t)out);
         }
     }