gcc/testsuite/gcc.target/i386/avx-vpermilpd-2.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 #include "avx-check.h"
   6
   7 #ifndef CTRL
   8 #define CTRL 2
   9 #endif
  10
  11 #define mask_v(pos) (((CTRL & (1ULL << (pos))) >> (pos)) << 1)
  12
  13 void static
  14 avx_test ()
  15 {
  16     union128d u, src;
  17     union128i_q ctl;
  18
  19     double  s[2] = {9674.67456, 13543.9788};
  20     long long m[2] = {mask_v(0), mask_v(1)};
  21     double  e[2];
  22
  23     src.x = _mm_loadu_pd(s);
  24     ctl.x = _mm_loadu_si128((__m128i*) m);
  25     u.x = _mm_permutevar_pd(src.x, ctl.x);
  26
  27     e[0] = s[((m[0] & 0x02) >> 1)];
  28     e[1] = s[((m[1] & 0x02) >> 1)];
  29
  30     if (check_union128d (u, e))
  31       abort ();
  32 }
  33