1 // RUN: %clangxx -fsanitize=enum %s -O3 -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK 2 3 // FIXME: UBSan fails to add the correct instrumentation code for some reason on 4 // Windows. 5 // XFAIL: windows-msvc 6 7 enum E { a = 1 }; 8 enum class EClass { a = 1 }; 9 enum class EBool : bool { a = 1 } e3; 10 enum EEmpty {}; 11 enum EMinus { em = -1 }; 12 13 int 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