gcc/testsuite/gcc.c-torture/execute/20050316-3.c

   1 /* { dg-options "-Wno-psabi" } */
   2 extern void abort (void);
   3
   4 typedef int V2SI __attribute__ ((vector_size (8)));
   5 typedef unsigned int V2USI __attribute__ ((vector_size (8)));
   6 typedef short V2HI __attribute__ ((vector_size (4)));
   7 typedef unsigned int V2UHI __attribute__ ((vector_size (4)));
   8
   9 V2USI
  10 test1 (V2SI x)
  11 {
  12   return (V2USI) (V2SI) (long long) x;
  13 }
  14
  15 long long
  16 test2 (V2SI x)
  17 {
  18   return (long long) (V2USI) (V2SI) (long long) x;
  19 }
  20
  21 int
  22 main (void)
  23 {
  24   if (sizeof (short) != 2 || sizeof (int) != 4 || sizeof (long long) != 8)
  25     return 0;
  26
  27   union { V2SI x; int y[2]; V2USI z; long long l; } u;
  28   V2SI a = { -3, -3 };
  29   u.z = test1 (a);
  30   if (u.y[0] != -3 || u.y[1] != -3)
  31     abort ();
  32
  33   u.l = test2 (a);
  34   if (u.y[0] != -3 || u.y[1] != -3)
  35     abort ();
  36   return 0;
  37 }