gcc/testsuite/gcc.dg/tree-ssa/pr23820.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-loop-linear" } */
   3
   4 int t [2][4];
   5
   6 void foo (void)
   7 {
   8   int i, j, k, v;
   9   float e;
  10   for (;;)
  11     {
  12       v = 0;
  13       for (j = 0; j < 2; j ++)
  14         {
  15           for (k = 2; k < 4; k ++)
  16             {
  17               e = 0.0;
  18               for (i = 0; i < 4; i ++)
  19                 e += t [j][i];
  20               if (e)
  21                 v = j;
  22             }
  23         }
  24       t [v][0] = 0;
  25     }
  26 }