56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
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// check sanity of vsx aligned ld/st
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// https://github.com/opencv/opencv/issues/13211
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#include <altivec.h>
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#undef bool
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#define vsx_ld vec_vsx_ld
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#define vsx_st vec_vsx_st
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template<typename T>
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static void fill(T& d, int from = 0, int to = 16)
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{
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for (int i = from; i < to; i++)
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d[i] = i;
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}
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template<typename T, typename Tvec>
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static bool check_data(T& d, Tvec& v, int from = 0, int to = 16)
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{
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for (int i = from; i < to; i++)
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{
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if (d[i] != vec_extract(v, i))
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return false;
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}
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return true;
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}
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int main()
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{
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unsigned char __attribute__ ((aligned (16))) rbuf[16];
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unsigned char __attribute__ ((aligned (16))) wbuf[16];
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__vector unsigned char a;
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// 1- check aligned load and store
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fill(rbuf);
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a = vec_ld(0, rbuf);
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if (!check_data(rbuf, a))
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return 1;
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vec_st(a, 0, wbuf);
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if (!check_data(wbuf, a))
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return 11;
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// 2- check mixing aligned load and unaligned store
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a = vec_ld(0, rbuf);
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vsx_st(a, 0, wbuf);
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if (!check_data(wbuf, a))
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return 2;
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// 3- check mixing unaligned load and aligned store
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a = vsx_ld(0, rbuf);
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vec_st(a, 0, wbuf);
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if (!check_data(wbuf, a))
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return 3;
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return 0;
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}
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