1 // RUN: %clang -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=RECOVER 2 // RUN: %clang -fsanitize=unsigned-integer-overflow -fsanitize-recover %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=RECOVER 3 // RUN: %clang -fsanitize=unsigned-integer-overflow -fno-sanitize-recover %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=ABORT 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; 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' 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 } 23
