gcc/testsuite/gcc.c-torture/execute/920728-1.c

   1 /* { dg-additional-options "-std=gnu89" } */
   2 typedef struct {int dims[0]; } *A;
   3
   4 f(unsigned long obj)
   5 {
   6   unsigned char y = obj >> 24;
   7   y &= ~4;
   8
   9   if ((y==0)||(y!=251  ))
  10     abort();
  11
  12   if(((int)obj&7)!=7)return;
  13
  14   REST_OF_CODE_JUST_HERE_TO_TRIGGER_THE_BUG:
  15
  16   {
  17     unsigned char t = obj >> 24;
  18     if (!(t==0)&&(t<=0x03))
  19       return 0;
  20     return ((A)(obj&0x00FFFFFFL))->dims[1];
  21   }
  22 }
  23
  24 long g(){return 0xff000000L;}
  25 main (){int x;f(g());exit(0);}