gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/20050316-1.c

   1 /* PR rtl-optimization/16104 */
   2
   3 extern void abort (void);
   4
   5 typedef int V2SI __attribute__ ((vector_size (8)));
   6 typedef unsigned int V2USI __attribute__ ((vector_size (8)));
   7 typedef short V2HI __attribute__ ((vector_size (4)));
   8 typedef unsigned int V2UHI __attribute__ ((vector_size (4)));
   9
  10 int
  11 test1 (void)
  12 {
  13   return (long long) (V2SI) 0LL;
  14 }
  15
  16 int
  17 test2 (V2SI x)
  18 {
  19   return (long long) x;
  20 }
  21
  22 V2SI
  23 test3 (void)
  24 {
  25   return (V2SI) (long long) (int) (V2HI) 0;
  26 }
  27
  28 V2SI
  29 test4 (V2HI x)
  30 {
  31   return (V2SI) (long long) (int) x;
  32 }
  33
  34 V2SI
  35 test5 (V2USI x)
  36 {
  37   return (V2SI) x;
  38 }
  39
  40 int
  41 main (void)
  42 {
  43   if (sizeof (short) != 2 || sizeof (int) != 4 || sizeof (long long) != 8)
  44     return 0;
  45
  46   if (test1 () != 0)
  47     abort ();
  48
  49   V2SI x = { 2, 2 };
  50   if (test2 (x) != 2)
  51     abort ();
  52
  53   union { V2SI x; int y[2]; V2USI z; long long l; } u;
  54   u.x = test3 ();
  55   if (u.y[0] != 0 || u.y[1] != 0)
  56     abort ();
  57
  58   V2HI y = { 4, 4 };
  59   union { V2SI x; long long y; } v;
  60   v.x = test4 (y);
  61   if (v.y != 0x40004)
  62     abort ();
  63
  64   V2USI z = { 6, 6 };
  65   u.x = test5 (z);
  66   if (u.y[0] != 6 || u.y[1] != 6)
  67     abort ();
  68   return 0;
  69 }