gcc/testsuite/gcc.c-torture/execute/20141107-1.c

   1 #define bool _Bool
   2
   3 bool f(int a, bool c) __attribute__((noinline));
   4 bool f(int a, bool c)
   5 {
   6   if (!a)
   7     c = !c;
   8   return c;
   9 }
  10
  11 void checkf(int a, bool b)
  12 {
  13   bool c = f(a, b);
  14   char d;
  15   __builtin_memcpy (&d, &c, 1);
  16   if ( d != (a==0)^b)
  17     __builtin_abort();
  18 }
  19
  20 int main(void)
  21 {
  22   checkf(0, 0);
  23   checkf(0, 1);
  24   checkf(1, 1);
  25   checkf(1, 0);
  26   return 0;
  27 }