modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20011219-1.c (about)

     1  /* This testcase failed on IA-64 at -O2 during scheduling.  */
     2  
     3  void * baz (unsigned long);
     4  static inline double **
     5  bar (long w, long x, long y, long z)
     6  {
     7    long i, a = x - w + 1, b = z - y + 1;
     8    double **m = (double **) baz (sizeof (double *) * (a + 1));
     9  
    10    m += 1;
    11    m -= w;
    12    m[w] = (double *) baz (sizeof (double) * (a * b + 1));
    13    m[w] += 1;
    14    m[w] -= y;
    15    for (i = w + 1; i <= x; i++)
    16      m[i] = m[i - 1] + b;
    17    return m;
    18  }
    19  
    20  void
    21  foo (double w[], int x, double y[], double z[])
    22  {
    23    int i;
    24    double **a;
    25  
    26    a = bar (1, 50, 1, 50);
    27    for (i = 1; i <= x; i++)
    28      a[1][i] = - w[x - i] / w[x];
    29  }