13   a = ++a; // expected-warning {{multiple unsequenced modifications to 'a'}}  in test()
15   a = a++; // expected-warning {{multiple unsequenced modifications to 'a'}}  in test()
17   ++a + ++a; // expected-warning {{multiple unsequenced modifications}}  in test()
18   a++ + a++; // expected-warning {{multiple unsequenced modifications}}  in test()
19   a = xs[++a]; // expected-warning {{multiple unsequenced modifications}}  in test()
20   a = xs[a++]; // expected-warning {{multiple unsequenced modifications}}  in test()
21   a = (++a, ++a); // expected-warning {{multiple unsequenced modifications}}  in test()
22   a = (a++, ++a); // expected-warning {{multiple unsequenced modifications}}  in test()
23   a = (a++, a++); // expected-warning {{multiple unsequenced modifications}}  in test()
27   f(a = 0, a = 0); // expected-warning {{multiple unsequenced modifications}}  in test()
30   a = f(++a, a++); // expected-warning {{multiple unsequenced modifications}}  in test()
32   ++a + f(++a, 0); // expected-warning {{multiple unsequenced modifications}}  in test()
33   f(++a, 0) + ++a; // expected-warning {{multiple unsequenced modifications}}  in test()
34   a++ + f(a++, 0); // expected-warning {{multiple unsequenced modifications}}  in test()
35   f(a++, 0) + a++; // expected-warning {{multiple unsequenced modifications}}  in test()
37   a = ++a; // expected-warning {{multiple unsequenced modifications}}  in test()
40   A agg1 = { a++, a++ }; // expected-warning {{multiple unsequenced modifications}}  in test()
83   xs[8] ? ++a + a++ : 0; // expected-warning {{multiple unsequenced modifications}}  in test()
84   xs[8] ? 0 : ++a + a++; // expected-warning {{multiple unsequenced modifications}}  in test()
87   xs[8] && (++a + a++); // expected-warning {{multiple unsequenced modifications}}  in test()
88   xs[8] || (++a + a++); // expected-warning {{multiple unsequenced modifications}}  in test()
92 …(__builtin_expect(++a, 0) ? 1 : 0) + ++a; // expected-warning {{multiple unsequenced modifications…  in test()