gcc/testsuite/gcc.c-torture/execute/pr34971.c

   1 struct foo
   2 {
   3   unsigned long long b:40;
   4 } x;
   5
   6 extern void abort (void);
   7
   8 void test1(unsigned long long res)
   9 {
  10   /* Build a rotate expression on a 40 bit argument.  */
  11   if ((x.b<<8) + (x.b>>32) != res)
  12     abort ();
  13 }
  14
  15 int main()
  16 {
  17   x.b = 0x0100000001;
  18   test1(0x0000000101);
  19   x.b = 0x0100000000;
  20   test1(0x0000000001);
  21   return 0;
  22 }