gcc/testsuite/gcc.c-torture/execute/pr65215-4.c

   1 /* PR tree-optimization/65215 */
   2
   3 struct S { unsigned long long l1 : 48; };
   4
   5 static inline unsigned int
   6 foo (unsigned int x)
   7 {
   8   return (x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24);
   9 }
  10
  11 __attribute__((noinline, noclone)) unsigned int
  12 bar (struct S *x)
  13 {
  14   return foo (x->l1);
  15 }
  16
  17 int
  18 main ()
  19 {
  20   if (__CHAR_BIT__ != 8 || sizeof (unsigned int) != 4 || sizeof (unsigned long long) != 8)
  21     return 0;
  22   struct S s;
  23   s.l1 = foo (0xdeadbeefU) | (0xfeedULL << 32);
  24   if (bar (&s) != 0xdeadbeefU)
  25     __builtin_abort ();
  26   return 0;
  27 }