to __uint32_t to avoid overflows on implicit casts.
* libm/common/s_llrint.c: New file, implementing llrint(). * libm/common/sf_llrint.c: New file, implementing llrintf(). * libm/common/Makefile.am: Add s_llrint.c (src); sf_llrint.c (fsrc). * libm/common/Makefile.in: Regenerate.