gcc/testsuite/gcc.dg/pr83581.c

   1 /* PR tree-optimization/83581 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3 -fno-tree-copy-prop -fno-tree-loop-im" } */
   4
   5 int a, b, c;
   6
   7 int
   8 foo (int x)
   9 {
  10   int *d = &x;
  11   while (a < 1)
  12     {
  13       for (b = 0; b < 2; ++b)
  14         {
  15           *d += !!x + 1;
  16           d = &c;
  17         }
  18       ++a;
  19     }
  20   return *d;
  21 }