gcc/testsuite/gcc.c-torture/execute/20020805-1.c

   1 /* This testcase was miscompiled on IA-32, because fold-const
   2    assumed associate_trees is always done on PLUS_EXPR.  */
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 void check (unsigned int m)
   8 {
   9   if (m != (unsigned int) -1)
  10     abort ();
  11 }
  12
  13 unsigned int n = 1;
  14
  15 int main (void)
  16 {
  17   unsigned int m;
  18   m = (1 | (2 - n)) | (-n);
  19   check (m);
  20   exit (0);
  21 }