| /* PR tree-optimization/65215 */ |
| |
| __attribute__((noinline, noclone)) unsigned int |
| foo (unsigned char *p) |
| { |
| return ((unsigned int) p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; |
| } |
| |
| __attribute__((noinline, noclone)) unsigned int |
| bar (unsigned char *p) |
| { |
| return ((unsigned int) p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; |
| } |
| |
| struct S { unsigned int a; unsigned char b[5]; }; |
| |
| int |
| main () |
| { |
| struct S s = { 1, { 2, 3, 4, 5, 6 } }; |
| if (__CHAR_BIT__ != 8 || sizeof (unsigned int) != 4) |
| return 0; |
| if (foo (&s.b[1]) != 0x03040506U |
| || bar (&s.b[1]) != 0x06050403U) |
| __builtin_abort (); |
| return 0; |
| } |