gcc/testsuite/gcc.dg/pr53174.c

   1 /* PR debug/53174 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Ofast -g" } */
   4
   5 int w, h;
   6
   7 void
   8 bar (float (*x)[4], int y, int z)
   9 {
  10   int a, b, c, d, e, f, g;
  11
  12   a = 2;
  13   b = 2;
  14   c = 274;
  15   d = 274;
  16   if (!z)
  17     a = 12;
  18   if (!y)
  19     b = 12;
  20   if (z + 266 >= h - 2)
  21     c = 8 + h - z;
  22   if (y + 266 >= w - 2)
  23     d = 8 + w - y;
  24   for (e = a; e < c; e++)
  25     for (f = b, g = e * 276 + f; f < d; f++, g++)
  26       {
  27         float (*h)[4] = x + (g - 277);
  28         float k = (*h)[0];
  29         float l = (*h)[1];
  30         float m = (*h)[2];
  31         h++;
  32         k += (*h)[0];
  33         l += (*h)[1];
  34         m += (*h)[2];
  35         h++;
  36         k += (*h)[0];
  37         l += (*h)[1];
  38         m += (*h)[2];
  39         h += 274;
  40         k += (*h)[0];
  41         l += (*h)[1];
  42         m += (*h)[2];
  43         h += 2;
  44         k += (*h)[0];
  45         l += (*h)[1];
  46         m += (*h)[2];
  47         h += 274;
  48         k += (*h)[0];
  49         l += (*h)[1];
  50         m += (*h)[2];
  51         h++;
  52         k += (*h)[0];
  53         l += (*h)[1];
  54         m += (*h)[2];
  55         h++;
  56         k += (*h)[0];
  57         l += (*h)[1];
  58         m += (*h)[2];
  59         k *= 0.125f;
  60         l *= 0.125f;
  61         m *= 0.125f;
  62         k = k + (x[g][1] - l);
  63         m = m + (x[g][1] - l);
  64         x[g][0] = k;
  65         x[g][2] = m;
  66       }
  67 }