34 lines · cpp
1// RUN: %clangxx -fsanitize=enum %s -O3 -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK2 3// FIXME: UBSan fails to add the correct instrumentation code for some reason on4// Windows.5// XFAIL: target={{.*windows-msvc.*}}6 7enum E { a = 1 };8enum class EClass { a = 1 };9enum class EBool : bool { a = 1 } e3;10enum EEmpty {};11enum EMinus { em = -1 };12 13int main(int argc, char **argv) {14 E e1 = static_cast<E>(0xFFFFFFFF);15 EClass e2 = static_cast<EClass>(0xFFFFFFFF);16 EEmpty e4 = static_cast<EEmpty>(1);17 EEmpty e5 = static_cast<EEmpty>(2);18 EMinus e6 = static_cast<EMinus>(1);19 EMinus e7 = static_cast<EMinus>(2);20 21 for (unsigned char *p = (unsigned char *)&e3; p != (unsigned char *)(&e3 + 1);22 ++p)23 *p = 0xff;24 25 return ((int)e1 != -1) & ((int)e2 != -1) &26 // CHECK: error: load of value 4294967295, which is not a valid value for type 'E'27 ((int)e3 != -1) & ((int)e4 == 1) &28 // CHECK: error: load of value <unknown>, which is not a valid value for type 'enum EBool'29 ((int)e5 == 2) & ((int)e6 == 1) &30 // CHECK: error: load of value 2, which is not a valid value for type 'EEmpty'31 ((int)e7 == 2);32 // CHECK: error: load of value 2, which is not a valid value for type 'EMinus'33}34