RegCost            41 lj_asm.c         RegCost cost[RID_MAX];  /* Reference and blended allocation cost for regs. */
RegCost           443 lj_asm.c         RegCost cost = ~(RegCost)0;
RegCost           128 lj_target.h    #define REGCOST(cost, ref)	((RegCost)(ref) + ((RegCost)(cost) << 16))
RegCost           132 lj_target.h      ((RegCost)((t)&IRT_ISPHI) * (((RegCost)(REGCOST_PHI_WEIGHT)<<16)/IRT_ISPHI))