Function rotL

src/backend/cpu/kernel/random_engine_threefry.hpp:67–69

static const uint R7 = 24;

static inline uint rotL(uint x, uint N) {
    return (x << (N & 31)) | (x >> ((32 - N) & 31));
}

static inline void threefry(uint k[2], uint c[2], uint X[2]) {
    uint ks[3];