deepin-ocr/3rdparty/opencv-4.5.4/cmake/checks/cpu_vsx3.cpp

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#if defined(__VSX__)
#if defined(__PPC64__) && defined(__LITTLE_ENDIAN__)
#include <altivec.h>
#else
#error "OpenCV only supports little-endian mode"
#endif
#else
#error "VSX3 is not supported"
#endif
int main()
{
__vector unsigned char a = vec_splats((unsigned char)1);
__vector unsigned char b = vec_splats((unsigned char)2);
__vector unsigned char r = vec_absd(a, b);
return 0;
}