示例#1
0
static void
avx_test ()
{
    int i;
    union256d source1, source2;
   
    double s1[4] = {0, -5463, 86456, 0};
    double s2[4] = {0, -1223, 0,     1};
    int    d[1];
    int    e[1];

    source1.x = _mm256_loadu_pd(s1);
    source2.x = _mm256_loadu_pd(s2);
    d[0] = _mm256_testc_pd(source1.x, source2.x);

    e[0] = 1;
    for (i = 0; i < 4; i++) {
	union ieee754_double u1, u2;
	u1.d = s1[i];
	u2.d = s2[i];
        if (!u1.bits.sign && u2.bits.sign) {
            e[0] = 0;
        }
    }
    
  if (checkVi(d, e, 1))
    abort ();
}
示例#2
0
文件: logical.hpp 项目: dlevin256/kfr
KFR_SINTRIN bool bittestall(const f64avx& x) { return _mm256_testc_pd(*x, *allonesvector(x)); }