gcc/testsuite/gcc.target/i386/avx-vpermilps-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 233
   9 #endif
  10
  11 #define mask_v(pos) ((CTRL & (0x3 << (pos))) >> (pos))
  12
  13 void static
  14 avx_test ()
  15 {
  16     union128 u, s;
  17     union128i_q ctl;
  18     int m[4] = {mask_v(0), mask_v(1), mask_v(2), mask_v(3)};
  19     float e[4];
  20
  21     s.x = _mm_set_ps (1, 2, 3, 4);
  22     ctl.x = _mm_loadu_si128((__m128i*) m);
  23     u.x = _mm_permutevar_ps(s.x, ctl.x);
  24
  25     e[0] = s.a[0 + (m[0] & 0x03)];
  26     e[1] = s.a[0 + (m[1] & 0x03)];
  27     e[2] = s.a[0 + (m[2] & 0x03)];
  28     e[3] = s.a[0 + (m[3] & 0x03)];
  29
  30     if (check_union128 (u, e))
  31       abort ();
  32 }
  33