gcc/testsuite/gcc.dg/torture/vector-2.c

   1 /* Check that vector insertion works correctly. */
   2
   3 /* { dg-do run } */
   4 /* { dg-options "-msse" { target { i?86-*-* x86_64-*-* } } } */
   5 /* { dg-require-effective-target sse_runtime { target { i?86-*-* x86_64-*-* } } } */
   6
   7 #define vector __attribute__((vector_size(16) ))
   8
   9 vector int f0(vector int t, int a)
  10 {
  11  ((int*)&t)[0] = a;
  12  return t;
  13 }
  14 vector int f1(vector int t, int a)
  15 {
  16  ((int*)&t)[1] = a;
  17  return t;
  18 }
  19 vector int f2(vector int t, int a)
  20 {
  21  ((int*)&t)[2] = a;
  22  return t;
  23 }
  24 vector int f3(vector int t, int a)
  25 {
  26  ((int*)&t)[3] = a;
  27  return t;
  28 }
  29 int main(void)
  30 {
  31   vector int a = {0, 0, 0, 0};
  32   vector int b = {1, 0, 0, 0};
  33   vector int c = {0, 1, 0, 0};
  34   vector int d = {0, 0, 1, 0};
  35   vector int e = {0, 0, 0, 1};
  36   vector int a0;
  37   a0 = f0(a, 1);
  38   if (memcmp (&a0, &b, sizeof(a0)))
  39     __builtin_abort ();
  40   a0 = f1(a, 1);
  41   if (memcmp (&a0, &c, sizeof(a0)))
  42     __builtin_abort ();
  43   a0 = f2(a, 1);
  44   if (memcmp (&a0, &d, sizeof(a0)))
  45     __builtin_abort ();
  46   a0 = f3(a, 1);
  47   if (memcmp (&a0, &e, sizeof(a0)))
  48     __builtin_abort ();
  49   return 0;
  50 }