77 lines
4.5 KiB
C
77 lines
4.5 KiB
C
/* PR 16302 */
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/* { dg-do compile } */
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/* { dg-options "-Wlogical-op" } */
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void bar (int);
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int
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foo (int argc, char *argv[])
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{
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if (argc != 1 || argc != 2) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc != 1 || argc != 2); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc != 1 || argc != 2) ? 1 : 0 ; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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if (!argc || argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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if (!argc && argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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bar (!argc || argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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bar (!argc && argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return (!argc || argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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return (!argc && argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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return 0;
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}
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int
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foo2 (int argc)
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{
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if (5 != 1 || 5 != 2) return 1;
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if (5 < 0 && 5 > 10) return 1;
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if (1 || 0) return 1;
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if (0 && 1) return 1;
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if (2 || !2) return 1;
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if (2 && !2) return 1;
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if (!(!2) || !(2)) return 1;
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if (!(!2) && !(2)) return 1;
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bar (5 != 1 || 5 != 2);
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bar (5 < 0 && 5 > 10);
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bar (1 || 0);
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bar (0 && 1);
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bar (2 || !2);
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bar (2 && !2);
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return (5 != 1 || 5 != 2) ? 1 : 0 ;
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return (5 < 0 && 5 > 10) ? 1 : 0;
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return (1 || 0) ? 1 : 0 ;
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return (0 && 1) ? 1 : 0;
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return (2 || !2) ? 1 : 0;
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return (2 && !2) ? 1 : 0;
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return 0;
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}
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