CCALL_SPS_FREE   1098 lj_ccall.c       cc->spadj = (CCALL_SPS_FREE + CCALL_SPS_EXTRA)*CTSIZE_PTR;
CCALL_SPS_FREE   1099 lj_ccall.c       if (nsp > CCALL_SPS_FREE)
CCALL_SPS_FREE   1100 lj_ccall.c         cc->spadj += (((nsp-CCALL_SPS_FREE)*CTSIZE_PTR + 15u) & ~15u);