backport computed gotos (#4753)
diff --git a/Include/opcode.h b/Include/opcode.h
index 9764109..9ed5487 100644
--- a/Include/opcode.h
+++ b/Include/opcode.h
@@ -37,12 +37,21 @@
#define SLICE 30
/* Also uses 31-33 */
+#define SLICE_1 31
+#define SLICE_2 32
+#define SLICE_3 33
#define STORE_SLICE 40
/* Also uses 41-43 */
+#define STORE_SLICE_1 41
+#define STORE_SLICE_2 42
+#define STORE_SLICE_3 43
#define DELETE_SLICE 50
/* Also uses 51-53 */
+#define DELETE_SLICE_1 51
+#define DELETE_SLICE_2 52
+#define DELETE_SLICE_3 53
#define STORE_MAP 54
#define INPLACE_ADD 55