LJ_GCVMASK       1034 lj_asm_arm64.h       emit_dn(as, A64I_ANDx^emit_isk13(LJ_GCVMASK, 1), dest, dest);
LJ_GCVMASK       1127 lj_asm_arm64.h       emit_dn(as, A64I_ANDx^emit_isk13(LJ_GCVMASK, 1), dest, dest);
LJ_GCVMASK        792 lj_obj.h       #define gcval(o)	((GCobj *)(gcrefu((o)->gcr) & LJ_GCVMASK))