27 lines · cpp
1// RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER2// 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=RECOVER3// RUN: %env_ubsan_opts=silence_unsigned_overflow=1 %run %t 2>&1 | FileCheck %s --check-prefix=SILENT-RECOVER --allow-empty4// RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=unsigned-integer-overflow %s -o %t5// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT6// RUN: %env_ubsan_opts=silence_unsigned_overflow=1 not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT7 8#include <stdint.h>9 10int 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 error15 // ABORT-NOT: runtime error16 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));23 // RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type '{{uint64_t|unsigned long( long)?}}'24 // SILENT-RECOVER-NOT: runtime error25 // ABORT-NOT: runtime error26}27