Andrew Top | 61a8495 | 2019-04-30 15:07:33 -0700 | [diff] [blame] | 1 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
| 2 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=all -fsanitize-recover=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
| 3 | // RUN: %env_ubsan_opts=silence_unsigned_overflow=1 %run %t 2>&1 | FileCheck %s --check-prefix=SILENT-RECOVER --allow-empty |
Kaido Kert | 788710a | 2023-06-05 07:50:22 -0700 | [diff] [blame] | 4 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=unsigned-integer-overflow %s -o %t |
| 5 | // RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT |
| 6 | // RUN: %env_ubsan_opts=silence_unsigned_overflow=1 not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT |
Andrew Top | 61a8495 | 2019-04-30 15:07:33 -0700 | [diff] [blame] | 7 | |
| 8 | #include <stdint.h> |
| 9 | |
| 10 | int main() { |
| 11 | // These promote to 'int'. |
| 12 | (void)(uint8_t(0xff) + uint8_t(0xff)); |
| 13 | (void)(uint16_t(0xf0fff) + uint16_t(0x0fff)); |
| 14 | // RECOVER-NOT: runtime error |
| 15 | // ABORT-NOT: runtime error |
| 16 | |
| 17 | uint32_t k = 0x87654321; |
| 18 | k += 0xedcba987; |
| 19 | // RECOVER: no-recover.cpp:[[@LINE-1]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
| 20 | // ABORT: no-recover.cpp:[[@LINE-2]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
| 21 | |
| 22 | (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull)); |
Kaido Kert | 788710a | 2023-06-05 07:50:22 -0700 | [diff] [blame] | 23 | // RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type '{{uint64_t|unsigned long( long)?}}' |
Andrew Top | 61a8495 | 2019-04-30 15:07:33 -0700 | [diff] [blame] | 24 | // SILENT-RECOVER-NOT: runtime error |
| 25 | // ABORT-NOT: runtime error |
| 26 | } |