modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr65427.c (about)

     1  /* PR tree-optimization/65427 */
     2  
     3  typedef int V __attribute__ ((vector_size (8 * sizeof (int))));
     4  V a, b, c, d, e, f;
     5  
     6  __attribute__((noinline, noclone)) void
     7  foo (int x, int y)
     8  {
     9    do
    10      {
    11        if (x)
    12  	d = a ^ c;
    13        else
    14  	d = a ^ b;
    15      }
    16    while (y);
    17  }
    18  
    19  int
    20  main ()
    21  {
    22    a = (V) { 1, 2, 3, 4, 5, 6, 7, 8 };
    23    b = (V) { 0x40, 0x80, 0x40, 0x80, 0x40, 0x80, 0x40, 0x80 };
    24    e = (V) { 0x41, 0x82, 0x43, 0x84, 0x45, 0x86, 0x47, 0x88 };
    25    foo (0, 0);
    26    if (__builtin_memcmp (&d, &e, sizeof (V)) != 0)
    27      __builtin_abort ();
    28    c = (V) { 0x80, 0x40, 0x80, 0x40, 0x80, 0x40, 0x80, 0x40 };
    29    f = (V) { 0x81, 0x42, 0x83, 0x44, 0x85, 0x46, 0x87, 0x48 };
    30    foo (1, 0);
    31    if (__builtin_memcmp (&d, &f, sizeof (V)) != 0)
    32      __builtin_abort ();
    33    return 0;
    34  }