gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/20050316-3.c

   1 extern void abort (void);
   2
   3 typedef int V2SI __attribute__ ((vector_size (8)));
   4 typedef unsigned int V2USI __attribute__ ((vector_size (8)));
   5 typedef short V2HI __attribute__ ((vector_size (4)));
   6 typedef unsigned int V2UHI __attribute__ ((vector_size (4)));
   7
   8 V2USI
   9 test1 (V2SI x)
  10 {
  11   return (V2USI) (V2SI) (long long) x;
  12 }
  13
  14 long long
  15 test2 (V2SI x)
  16 {
  17   return (long long) (V2USI) (V2SI) (long long) x;
  18 }
  19
  20 int
  21 main (void)
  22 {
  23   if (sizeof (short) != 2 || sizeof (int) != 4 || sizeof (long long) != 8)
  24     return 0;
  25
  26   union { V2SI x; int y[2]; V2USI z; long long l; } u;
  27   V2SI a = { -3, -3 };
  28   u.z = test1 (a);
  29   if (u.y[0] != -3 || u.y[1] != -3)
  30     abort ();
  31
  32   u.l = test2 (a);
  33   if (u.y[0] != -3 || u.y[1] != -3)
  34     abort ();
  35   return 0;
  36 }