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      1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -fsyntax-only -Wtautological-constant-out-of-range-compare -verify %s
      2 // rdar://12202422
      3 
      4 int value(void);
      5 
      6 int main()
      7 {
      8     int a = value();
      9     if (a == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     10         return 0;
     11     if (a != 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     12         return 0;
     13     if (a < 0x1234567812345678L)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     14         return 0;
     15     if (a <= 0x1234567812345678L)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     16         return 0;
     17     if (a > 0x1234567812345678L)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     18         return 0;
     19     if (a >= 0x1234567812345678L)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     20         return 0;
     21 
     22     if (0x1234567812345678L == a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     23         return 0;
     24     if (0x1234567812345678L != a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     25         return 0;
     26     if (0x1234567812345678L < a)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     27         return 0;
     28     if (0x1234567812345678L <= a)  // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     29         return 0;
     30     if (0x1234567812345678L > a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     31         return 0;
     32     if (0x1234567812345678L >= a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}}
     33         return 0;
     34     if (a == 0x1234567812345678LL) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}}
     35       return 0;
     36     if (a == -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}}
     37       return 0;
     38     if (a < -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}}
     39       return 0;
     40     if (a > -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always true}}
     41       return 0;
     42     if (a <= -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}}
     43       return 0;
     44     if (a >= -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always true}}
     45       return 0;
     46 
     47 
     48     if (a == 0x12345678L) // no warning
     49       return 1;
     50 
     51     short s = value();
     52     if (s == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     53         return 0;
     54     if (s != 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     55         return 0;
     56     if (s < 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     57         return 0;
     58     if (s <= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     59         return 0;
     60     if (s > 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     61         return 0;
     62     if (s >= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     63         return 0;
     64 
     65     if (0x1234567812345678L == s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     66         return 0;
     67     if (0x1234567812345678L != s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     68         return 0;
     69     if (0x1234567812345678L < s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     70         return 0;
     71     if (0x1234567812345678L <= s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}}
     72         return 0;
     73     if (0x1234567812345678L > s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     74         return 0;
     75     if (0x1234567812345678L >= s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}}
     76         return 0;
     77     long l = value();
     78     if (l == 0x1234567812345678L)
     79         return 0;
     80     if (l != 0x1234567812345678L)
     81         return 0;
     82     if (l < 0x1234567812345678L)
     83         return 0;
     84     if (l <= 0x1234567812345678L)
     85         return 0;
     86     if (l > 0x1234567812345678L)
     87         return 0;
     88     if (l >= 0x1234567812345678L)
     89         return 0;
     90 
     91     if (0x1234567812345678L == l)
     92         return 0;
     93     if (0x1234567812345678L != l)
     94         return 0;
     95     if (0x1234567812345678L < l)
     96         return 0;
     97     if (0x1234567812345678L <= l)
     98         return 0;
     99     if (0x1234567812345678L > l)
    100         return 0;
    101     if (0x1234567812345678L >= l)
    102         return 0;
    103 
    104     unsigned un = 0;
    105     if (un == 0x0000000000000000L)
    106         return 0;
    107     if (un != 0x0000000000000000L)
    108         return 0;
    109     if (un < 0x0000000000000000L)
    110         return 0;
    111     if (un <= 0x0000000000000000L)
    112         return 0;
    113     if (un > 0x0000000000000000L)
    114         return 0;
    115     if (un >= 0x0000000000000000L)
    116         return 0;
    117 
    118     if (0x0000000000000000L == un)
    119         return 0;
    120     if (0x0000000000000000L != un)
    121         return 0;
    122     if (0x0000000000000000L < un)
    123         return 0;
    124     if (0x0000000000000000L <= un)
    125         return 0;
    126     if (0x0000000000000000L > un)
    127         return 0;
    128     if (0x0000000000000000L >= un)
    129         return 0;
    130     float fl = 0;
    131     if (fl == 0x0000000000000000L) // no warning
    132       return 0;
    133 
    134     float dl = 0;
    135     if (dl == 0x0000000000000000L) // no warning
    136       return 0;
    137 
    138     enum E {
    139     yes,
    140     no,
    141     maybe
    142     };
    143     enum E e;
    144 
    145     if (e == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'enum E' is always false}}
    146       return 0;
    147 
    148     return 1;
    149 }
    150