• Chip Kerchner's avatar
    Merge pull request #15274 from ChipKerchner:lkpyramidToHal · 30a60d39
    Chip Kerchner authored
    * Convert lkpyramid from SSE SIMD to HAL - 90% faster on Power (VSX).
    
    * Replace stores with reduce_sum.  Rework to handle endianess correctly.
    
    * Fix compiler warnings by casting values explicitly to shorts
    
    * Switch to CV_SIMD128 compiler definition.  Unroll loop to 8 elements since we've already loaded the data.
    30a60d39
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