modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/bitfld-5.c (about) 1 /* See http://gcc.gnu.org/ml/gcc/2009-06/msg00072.html. */ 2 3 extern void abort (void); 4 5 struct s 6 { 7 unsigned long long a:2; 8 unsigned long long b:40; 9 unsigned long long c:22; 10 }; 11 12 __attribute__ ((noinline)) void 13 g (unsigned long long a, unsigned long long b) 14 { 15 asm (""); 16 if (a != b) 17 abort (); 18 } 19 20 __attribute__ ((noinline)) void 21 f (struct s s, unsigned long long b) 22 { 23 asm (""); 24 g (((unsigned long long) (s.b-8)) + 8, b); 25 } 26 27 int 28 main () 29 { 30 struct s s = {1, 10, 3}; 31 struct s t = {1, 2, 3}; 32 f (s, 10); 33 f (t, 0x10000000002); 34 return 0; 35 }