| /* { dg-do run } */ |
| |
| typedef __INT64_TYPE__ int64_t; |
| |
| __attribute__((noinline)) int64_t |
| swap64 (int64_t n) |
| { |
| return (((n & (((int64_t) 0xff) )) << 56) | |
| ((n & (((int64_t) 0xff) << 8)) << 40) | |
| ((n & (((int64_t) 0xff) << 16)) << 24) | |
| ((n & (((int64_t) 0xff) << 24)) << 8) | |
| ((n & (((int64_t) 0xff) << 32)) >> 8) | |
| ((n & (((int64_t) 0xff) << 40)) >> 24) | |
| ((n & (((int64_t) 0xff) << 48)) >> 40) | |
| ((n & ((int64_t)(0xffull << 56))) >> 56)); |
| } |
| |
| int main (void) |
| { |
| volatile int64_t n = 0x8000000000000000ll; |
| |
| if (swap64(n) != 0xffffffffffffff80ll) |
| __builtin_abort (); |
| |
| return 0; |
| } |