| 1 | // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s |
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| 2 | |
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| 3 | // This tests if we search for clones in functions. |
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| 4 | |
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| 5 | void log(); |
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| 6 | |
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| 7 | int max(int a, int b) { // expected-warning{{Duplicate code detected}} |
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| 8 | log(); |
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| 9 | if (a > b) |
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| 10 | return a; |
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| 11 | return b; |
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| 12 | } |
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| 13 | |
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| 14 | int maxClone(int x, int y) { // expected-note{{Similar code here}} |
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| 15 | log(); |
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| 16 | if (x > y) |
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| 17 | return x; |
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| 18 | return y; |
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| 19 | } |
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| 20 | |
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| 21 | // Functions below are not clones and should not be reported. |
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| 22 | |
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| 23 | // The next two functions test that statement classes are still respected when |
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| 24 | // checking for clones in expressions. This will show that the statement |
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| 25 | // specific data of all base classes is collected, and not just the data of the |
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| 26 | // first base class. |
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| 27 | int testBaseClass(int a, int b) { // no-warning |
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| 28 | log(); |
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| 29 | if (a > b) |
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| 30 | return true ? a : b; |
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| 31 | return b; |
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| 32 | } |
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| 33 | int testBaseClass2(int a, int b) { // no-warning |
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| 34 | log(); |
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| 35 | if (a > b) |
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| 36 | return __builtin_choose_expr(true, a, b); |
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| 37 | return b; |
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| 38 | } |
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| 39 | |
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| 40 | // No clone because of the different comparison operator. |
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| 41 | int min1(int a, int b) { // no-warning |
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| 42 | log(); |
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| 43 | if (a < b) |
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| 44 | return a; |
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| 45 | return b; |
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| 46 | } |
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| 47 | |
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| 48 | // No clone because of the different pattern in which the variables are used. |
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| 49 | int min2(int a, int b) { // no-warning |
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| 50 | log(); |
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| 51 | if (a > b) |
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| 52 | return b; |
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| 53 | return a; |
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| 54 | } |
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| 55 | |
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| 56 | int foo(int a, int b) { // no-warning |
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| 57 | return a + b; |
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| 58 | } |
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| 59 | |
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