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 /* { dg-options "-mabi=altivec" { target { powerpc-*-* powerpc64-*-* } } } */
   7 /* { dg-require-effective-target vmx_hw { target { powerpc-*-* powerpc64--*-* } } } */
   8
   9 #define vector __attribute__((vector_size(16) ))
  10
  11 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
  12
  13 vector int f0(vector int t, int a)
  14 {
  15  ((int*)&t)[0] = a;
  16  return t;
  17 }
  18 vector int f1(vector int t, int a)
  19 {
  20  ((int*)&t)[1] = a;
  21  return t;
  22 }
  23 vector int f2(vector int t, int a)
  24 {
  25  ((int*)&t)[2] = a;
  26  return t;
  27 }
  28 vector int f3(vector int t, int a)
  29 {
  30  ((int*)&t)[3] = a;
  31  return t;
  32 }
  33 int main(void)
  34 {
  35   vector int a = {0, 0, 0, 0};
  36   vector int b = {1, 0, 0, 0};
  37   vector int c = {0, 1, 0, 0};
  38   vector int d = {0, 0, 1, 0};
  39   vector int e = {0, 0, 0, 1};
  40   vector int a0;
  41   a0 = f0(a, 1);
  42   if (memcmp (&a0, &b, sizeof(a0)))
  43     __builtin_abort ();
  44   a0 = f1(a, 1);
  45   if (memcmp (&a0, &c, sizeof(a0)))
  46     __builtin_abort ();
  47   a0 = f2(a, 1);
  48   if (memcmp (&a0, &d, sizeof(a0)))
  49     __builtin_abort ();
  50   a0 = f3(a, 1);
  51   if (memcmp (&a0, &e, sizeof(a0)))
  52     __builtin_abort ();
  53   return 0;
  54 }