setgcref           68 lj_obj.h       #define setgcref(r, gc)	((r).gcptr64 = (uint64_t)&(gc)->gch)
setgcref           80 lj_obj.h       #define setgcref(r, gc)	((r).gcptr32 = (uint32_t)(uintptr_t)&(gc)->gch)