PERLVAR(I, reg_state, struct re_save_state)
+/* fake PMOP that PL_curpm points to while in (?{}) so $1 et al are visible */
+PERLVARI(I, reg_curpm, PMOP*, NULL)
+
/* the currently active slab in a chain of slabs of regmatch states,
* and the currently active state within that slab */