1 // RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-apple-darwin10 %s
2 // RUN: %clang_cc1 -x c++ -fsyntax-only -verify -triple x86_64-apple-darwin10 %s
3 // rdar://11577384
4 // rdar://13423975
5
f(int i)6 int f(int i) {
7 switch (i) {
8 case 2147483647 + 2: // expected-warning {{overflow in expression; result is -2147483647 with type 'int'}}
9 return 1;
10 case 9223372036854775807L * 4: // expected-warning {{overflow in expression; result is -4 with type 'long'}}
11 return 2;
12 case (123456 *789012) + 1: // expected-warning {{overflow in expression; result is -1375982336 with type 'int'}}
13 return 3;
14 case (2147483647*4)/4: // expected-warning {{overflow in expression; result is -4 with type 'int'}}
15 case (2147483647*4)%4: // expected-warning {{overflow in expression; result is -4 with type 'int'}}
16 return 4;
17 case 2147483647:
18 return 0;
19 }
20 return (i, 65537) * 65537; // expected-warning {{overflow in expression; result is 131073 with type 'int'}} \
21 // expected-warning {{expression result unused}}
22 }
23
24 // rdar://18405357
25 unsigned long long l = 65536 * 65536; // expected-warning {{overflow in expression; result is 0 with type 'int'}}
26 unsigned long long l2 = 65536 * (unsigned)65536;
27 unsigned long long l3 = 65536 * 65536ULL;
28