1 /* PR tree-optimization/65215 */ 2 3 __attribute__((noinline, noclone)) unsigned int foo(unsigned char * p)4foo (unsigned char *p) 5 { 6 return ((unsigned int) p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; 7 } 8 9 __attribute__((noinline, noclone)) unsigned int bar(unsigned char * p)10bar (unsigned char *p) 11 { 12 return ((unsigned int) p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; 13 } 14 15 struct S { unsigned int a; unsigned char b[5]; }; 16 17 int main()18main () 19 { 20 struct S s = { 1, { 2, 3, 4, 5, 6 } }; 21 if (__CHAR_BIT__ != 8 || sizeof (unsigned int) != 4) 22 return 0; 23 if (foo (&s.b[1]) != 0x03040506U 24 || bar (&s.b[1]) != 0x06050403U) 25 __builtin_abort (); 26 return 0; 27 } 28