LJ_MIN_IRSZ        79 lj_ir.c            baseir = (IRIns *)lj_mem_realloc(J->L, NULL, 0, LJ_MIN_IRSZ*sizeof(IRIns));
LJ_MIN_IRSZ        80 lj_ir.c            J->irbotlim = REF_BASE - LJ_MIN_IRSZ/4;
LJ_MIN_IRSZ        81 lj_ir.c            J->irtoplim = J->irbotlim + LJ_MIN_IRSZ;