modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/ieee/pr72824-2.c (about)

     1  /* PR tree-optimization/72824 */
     2  
     3  typedef float V __attribute__((vector_size (4 * sizeof (float))));
     4  
     5  static inline void
     6  foo (V *x, V value)
     7  {
     8    int i;
     9    for (i = 0; i < 32; ++i)
    10      x[i] = value;
    11  }
    12  
    13  int
    14  main ()
    15  {
    16    V x[32];
    17    foo (x, (V) { 0.f, -0.f, 0.f, -0.f });
    18    if (__builtin_copysignf (1.0, x[3][1]) != -1.0f)
    19      __builtin_abort ();
    20    return 0;
    21  }