+/* When micro-optimising :-) keep GIVEN next to the LOOPs, as these 5 share a
+ jump table in pp_ctl.c
+ The first 4 don't have a 'case' in at least one switch statement in pp_ctl.c
+*/
+#define CXt_GIVEN 3
+
+/* be careful of the ordering of these five. Macros like CxTYPE_is_LOOP,