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