_nx_bits_clz64_speed_fast.nx source
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1// _nx_bits_clz64_speed_fast.nx -- 100M-iter loop calling FAST
2// nx_bits_clz64 (composed intrinsics; ~3 ops worst case).
3import "syscalls.nx"
4import "nx_bits.nx"
5
6func main() -> i64 {
7 let iters: i64 = 100000000
8 var acc: i64 = 0
9 var x: i64 = 0xCAFEBABE12345678
10 var i: i64 = 0
11 while i < iters {
12 acc = acc + nx_bits_clz64(x)
13 x = x * 6364136223846793005 + 1442695040888963407
14 i = i + 1
15 }
16 return acc & 0
17}