gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/20050604-1.c

   1 /* PR regression/21897 */
   2
   3 extern void abort (void);
   4
   5 typedef short v4hi __attribute__ ((vector_size (8)));
   6 typedef float v4sf __attribute__ ((vector_size (16)));
   7
   8 union
   9 {
  10   v4hi v;
  11   short s[4];
  12 } u;
  13
  14 union
  15 {
  16   v4sf v;
  17   float f[4];
  18 } v;
  19
  20 void
  21 foo (void)
  22 {
  23   unsigned int i;
  24   for (i = 0; i < 2; i++)
  25     u.v += (v4hi) { 12, 14 };
  26   for (i = 0; i < 2; i++)
  27     v.v += (v4sf) { 18.0, 20.0, 22 };
  28 }
  29
  30 int
  31 main (void)
  32 {
  33   foo ();
  34   if (u.s[0] != 24 || u.s[1] != 28 || u.s[2] || u.s[3])
  35     abort ();
  36   if (v.f[0] != 36.0 || v.f[1] != 40.0 || v.f[2] != 44.0 || v.f[3] != 0.0)
  37     abort ();
  38   return 0;
  39 }