ref: ea74e72bf9f4ba8cc9bf290b3c6c748bc277d48e dir: /src/plan9/clz.c/
#include "platform.h" int fl_clz(uint32_t x) { uint32_t r; if(x == 0) return 32; for(r = 0; (x & (1UL<<31)) == 0; x <<= 1, r++); return r; }