| /* PR tree-optimization/65215 */ |
| |
| struct S { unsigned long long l1 : 24, l2 : 8, l3 : 32; }; |
| |
| static inline unsigned int |
| foo (unsigned int x) |
| { |
| return (x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24); |
| } |
| |
| __attribute__((noinline, noclone)) unsigned long long |
| bar (struct S *x) |
| { |
| unsigned long long x1 = foo (((unsigned int) x->l1 << 8) | x->l2); |
| unsigned long long x2 = foo (x->l3); |
| return (x2 << 32) | x1; |
| } |
| |
| int |
| main () |
| { |
| if (__CHAR_BIT__ != 8 || sizeof (unsigned int) != 4 || sizeof (unsigned long long) != 8) |
| return 0; |
| struct S s = { 0xdeadbeU, 0xefU, 0xfeedbea8U }; |
| unsigned long long l = bar (&s); |
| if (foo (l >> 32) != s.l3 |
| || (foo (l) >> 8) != s.l1 |
| || (foo (l) & 0xff) != s.l2) |
| __builtin_abort (); |
| return 0; |
| } |