1// PR 16302
2/* { dg-do compile } */
3/* { dg-options "-Wlogical-op" } */
4void bar (int);
5int
6foo (int argc, char *argv[])
7{
8  if (argc != 1 || argc != 2) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
9  if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
10  if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
11  if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
12  bar (argc != 1 || argc != 2); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
13  bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
14  bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
15  bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
16  return (argc != 1 || argc != 2) ? 1 : 0 ; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
17  return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
18  return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
19  return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
20
21  if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
22  if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
23  if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
24  if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
25  bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
26  bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
27  bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
28  bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
29  return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
30  return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
31  return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
32  return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
33
34  if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
35  if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
36  if (!argc || argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
37  if (!argc && argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
38  bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
39  bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
40  bar (!argc || argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
41  bar (!argc && argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
42  return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
43  return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
44  return (!argc || argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
45  return (!argc && argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
46
47  return 0;
48}
49
50int
51foo2 (int argc)
52{
53  if (5 != 1 || 5 != 2) return 1;
54  if (5 < 0 && 5 > 10) return 1;
55  if (1 || 0) return 1;
56  if (0 && 1) return 1;
57  if (2 || !2) return 1;
58  if (2 && !2) return 1;
59  if (!(!2) || !(2)) return 1;
60  if (!(!2) && !(2)) return 1;
61  bar (5 != 1 || 5 != 2);
62  bar (5 < 0 && 5 > 10);
63  bar (1 || 0);
64  bar (0 && 1);
65  bar (2 || !2);
66  bar (2 && !2);
67  return (5 != 1 || 5 != 2) ? 1 : 0 ;
68  return (5 < 0 && 5 > 10) ? 1 : 0;
69  return (1 || 0) ? 1 : 0 ;
70  return (0 && 1) ? 1 : 0;
71  return (2 || !2) ? 1 : 0;
72  return (2 && !2) ? 1 : 0;
73
74  return 0;
75}
76
77