gcc/testsuite/gcc.target/i386/sse2-vec-4.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #include "sse2-check.h"
   6
   7 #include <emmintrin.h>
   8
   9 static void
  10 sse2_test (void)
  11 {
  12   union
  13     {
  14       __m128i x;
  15       char c[16];
  16       short s[8];
  17       int i[4];
  18       long long ll[2];
  19     } val1;
  20   short res[8];
  21   int masks[8];
  22   int i;
  23
  24   for (i = 0; i < 16; i++)
  25     val1.c[i] = i;
  26
  27   res[0] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 0);
  28   res[1] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 1);
  29   res[2] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 2);
  30   res[3] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 3);
  31   res[4] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 4);
  32   res[5] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 5);
  33   res[6] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 6);
  34   res[7] = __builtin_ia32_vec_ext_v8hi ((__v8hi)val1.x, 7);
  35
  36   for (i = 0; i < 8; i++)
  37     masks[i] = i;
  38
  39   for (i = 0; i < 8; i++)
  40     if (res[i] != val1.s [masks[i]])
  41       abort ();
  42 }