On 08/26/2016 10:18 AM, H.J. Lu wrote: > + vpcmpeqd %xmm8, %xmm8, %xmm8 > + vorpd %ymm9, %ymm10, %ymm10 > + vptest %ymm10, %ymm8 No need to create a mask of all -1; use vptest ymm10, ymm10. r~