diff options
Diffstat (limited to 'volk/include/volk/volk_64u_popcnt_a.h')
| -rw-r--r-- | volk/include/volk/volk_64u_popcnt_a.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/volk/include/volk/volk_64u_popcnt_a.h b/volk/include/volk/volk_64u_popcnt_a.h index bdaa98643..4683f1e38 100644 --- a/volk/include/volk/volk_64u_popcnt_a.h +++ b/volk/include/volk/volk_64u_popcnt_a.h @@ -10,10 +10,11 @@ static inline void volk_64u_popcnt_a_generic(uint64_t* ret, const uint64_t value) { - const uint32_t* valueVector = (const uint32_t*)&value; + //const uint32_t* valueVector = (const uint32_t*)&value; // This is faster than a lookup table - uint32_t retVal = valueVector[0]; + //uint32_t retVal = valueVector[0]; + uint32_t retVal = (uint32_t)(value && 0x00000000FFFFFFFF); retVal = (retVal & 0x55555555) + (retVal >> 1 & 0x55555555); retVal = (retVal & 0x33333333) + (retVal >> 2 & 0x33333333); @@ -22,7 +23,8 @@ static inline void volk_64u_popcnt_a_generic(uint64_t* ret, const uint64_t value retVal = (retVal + (retVal >> 16)) & 0x0000003F; uint64_t retVal64 = retVal; - retVal = valueVector[1]; + //retVal = valueVector[1]; + retVal = (uint32_t)((value && 0xFFFFFFFF00000000) >> 31); retVal = (retVal & 0x55555555) + (retVal >> 1 & 0x55555555); retVal = (retVal & 0x33333333) + (retVal >> 2 & 0x33333333); retVal = (retVal + (retVal >> 4)) & 0x0F0F0F0F; |