message: Shifted threshold for Winograd selection for Mali devices.
diff: @@ -65,10 +65,12 @@ bool IsSuitableForWinograd4x4To6x6(const Convolution2DAttributes& attr,
  const bool suitable_attributes =
  attr.weights.shape.w == 3 && attr.weights.shape.h == 3 &&
  attr.dilations == HW(1, 1) && attr.strides == HW(1, 1);
  - const int min_depth = 32;
  + // Mali among other devices has smaller SIMD line size
  + const int min_depth = device.IsMali() ? 16 : 32;
  + const int min_hw = device.IsMali() ? 32 : 128;
  const bool recommended_channels =
  dst_depth % 4 == 0 && src_depth >= min_depth && dst_depth >= min_depth;
  - const bool recommended_hw = tiles_x * tiles_y >= 128;
  + const bool recommended_hw = tiles_x * tiles_y >= min_hw;
  return suitable_attributes && recommended_channels && recommended_hw;
  }
  