| Peter Collingbourne | 49d29ed | 2013-10-20 21:29:32 +0000 | [diff] [blame^] | 1 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
| 2 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fsanitize-recover %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
| 3 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=ABORT |
| Will Dietz | a82a5d3 | 2012-12-02 19:47:29 +0000 | [diff] [blame] | 4 | |
| 5 | #include <stdint.h> |
| 6 | |
| 7 | int main() { |
| 8 | // These promote to 'int'. |
| 9 | (void)(uint8_t(0xff) + uint8_t(0xff)); |
| 10 | (void)(uint16_t(0xf0fff) + uint16_t(0x0fff)); |
| 11 | // RECOVER-NOT: runtime error |
| 12 | // ABORT-NOT: runtime error |
| 13 | |
| 14 | uint32_t k = 0x87654321; |
| 15 | k += 0xedcba987; |
| Will Dietz | 01247b7 | 2013-01-07 22:25:54 +0000 | [diff] [blame] | 16 | // RECOVER: no-recover.cpp:[[@LINE-1]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
| 17 | // ABORT: no-recover.cpp:[[@LINE-2]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
| Will Dietz | a82a5d3 | 2012-12-02 19:47:29 +0000 | [diff] [blame] | 18 | |
| 19 | (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull)); |
| 20 | // RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type 'unsigned long' |
| 21 | // ABORT-NOT: runtime error |
| 22 | } |