Function spp_mix_32

libCacheSim/dataStructure/sparsepp/spp_utils.h:178–184

from http://burtleburtle.net/bob/hash/integer.html fast and efficient for power of two table sizes where we always consider the last bits. ---------------------------------------------------------------

// consider the last bits.
// ---------------------------------------------------------------
inline size_t spp_mix_32(uint32_t a)
{
    a = a ^ (a >> 4);
    a = (a ^ 0xdeadbeef) + (a << 5);
    a = a ^ (a >> 11);
    return static_cast<size_t>(a);
}

// More thorough scrambling as described in
// https://gist.github.com/badboy/6267743