CCALL_NARG_GPR    676 lj_ccall.c           if (ngpr >= CCALL_NARG_GPR) return 1;  /* Register overflow. */
CCALL_NARG_GPR    948 lj_ccall.c       maxgpr = CCALL_NARG_GPR;
CCALL_NARG_GPR    147 lj_ccall.h       (CCALL_NARG_GPR > CCALL_NRET_GPR ? CCALL_NARG_GPR : CCALL_NRET_GPR)
CCALL_NARG_GPR    416 lj_ccallback.c       ngpr = CCALL_NARG_GPR;  /* Prevent reordering. */ \
CCALL_NARG_GPR    525 lj_ccallback.c   MSize ngpr = 0, nsp = 0, maxgpr = CCALL_NARG_GPR;