| Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 1 | // RUN: %clangxx -DOP=n++ -fsanitize=signed-integer-overflow %s -o %t1 && %run %t1 2>&1 | FileCheck %s --check-prefix=PLUS |
| 2 | // RUN: %clangxx -DOP=++n -fsanitize=signed-integer-overflow %s -o %t2 && %run %t2 2>&1 | FileCheck %s --check-prefix=PLUS |
| 3 | // RUN: %clangxx -DOP=m-- -fsanitize=signed-integer-overflow %s -o %t3 && %run %t3 2>&1 | FileCheck %s --check-prefix=MINUS |
| 4 | // RUN: %clangxx -DOP=--m -fsanitize=signed-integer-overflow %s -o %t4 && %run %t4 2>&1 | FileCheck %s --check-prefix=MINUS |
| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 5 | |
| 6 | #include <stdint.h> |
| 7 | |
| 8 | int main() { |
| 9 | int n = 0x7ffffffd; |
| 10 | n++; |
| 11 | n++; |
| 12 | int m = -n - 1; |
| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 13 | OP; |
| Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 14 | // PLUS: incdec-overflow.cpp:[[@LINE-1]]:3: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' |
| 15 | // MINUS: incdec-overflow.cpp:[[@LINE-2]]:3: runtime error: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int' |
| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 16 | } |