gcc/testsuite/gcc.dg/pr55833.c

   1 /* PR rtl-optimization/55833 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3" } */
   4
   5 int a, b, c;
   6
   7 void foo()
   8 {
   9     unsigned d, l, *p, k = 1;
  10
  11     if(bar())
  12     {
  13 label:
  14         if((a = a <= 0))
  15         {
  16             if(c)
  17                 d = b;
  18
  19             if (b || d ? l : k ? : 0)
  20                 a = d = 0;
  21
  22             goto label;
  23         }
  24     }
  25
  26     while(*p++)
  27         goto label;
  28 }