ref: 70246f96c1b3c628b758e6d6939e0a7c9a71d481 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; }