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 int bar (void);
   7
   8 void foo()
   9 {
  10     unsigned d, l, *p, k = 1;
  11
  12     if(bar())
  13     {
  14 label:
  15         if((a = a <= 0))
  16         {
  17             if(c)
  18                 d = b;
  19
  20             if (b || d ? l : k ? : 0)
  21                 a = d = 0;
  22
  23             goto label;
  24         }
  25     }
  26
  27     while(*p++)
  28         goto label;
  29 }