| Daniel Dunbar | a572887 | 2009-12-15 20:14:24 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -Eonly %s -verify -triple i686-pc-linux-gnu |
| Eli Friedman | 3265a42 | 2009-05-16 21:24:10 +0000 | [diff] [blame] | 2 | |
| 3 | // Multiply signed overflow |
| 4 | #if 0x7FFFFFFFFFFFFFFF*2 // expected-warning {{overflow}} |
| 5 | #endif |
| 6 | |
| 7 | // Multiply unsigned overflow |
| 8 | #if 0xFFFFFFFFFFFFFFFF*2 |
| 9 | #endif |
| 10 | |
| 11 | // Add signed overflow |
| 12 | #if 0x7FFFFFFFFFFFFFFF+1 // expected-warning {{overflow}} |
| 13 | #endif |
| 14 | |
| 15 | // Add unsigned overflow |
| 16 | #if 0xFFFFFFFFFFFFFFFF+1 |
| 17 | #endif |
| 18 | |
| 19 | // Subtract signed overflow |
| 20 | #if 0x7FFFFFFFFFFFFFFF- -1 // expected-warning {{overflow}} |
| 21 | #endif |
| 22 | |
| 23 | // Subtract unsigned overflow |
| 24 | #if 0xFFFFFFFFFFFFFFFF- -1 // expected-warning {{converted from negative value}} |
| 25 | #endif |