static inline __m128 masked_read()

in lattices/lattice_utils.cpp [243:257]

• 14 lines of code
• 5 McCabe index (conditional complexity)

static inline __m128 masked_read (int d, const float *x)
{
    assert (0 <= d && d < 4);
    __attribute__((__aligned__(16))) float buf[4] = {0, 0, 0, 0};
    switch (d) {
      case 3:
        buf[2] = x[2];
      case 2:
        buf[1] = x[1];
      case 1:
        buf[0] = x[0];
    }
    return _mm_load_ps (buf);
    // cannot use AVX2 _mm_mask_set1_epi32
}