59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
// RUN: %clang_cc1 -analyze -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -verify %s
|
|
|
|
// This tests if we search for clones in functions.
|
|
|
|
void log();
|
|
|
|
int max(int a, int b) { // expected-warning{{Duplicate code detected}}
|
|
log();
|
|
if (a > b)
|
|
return a;
|
|
return b;
|
|
}
|
|
|
|
int maxClone(int x, int y) { // expected-note{{Similar code here}}
|
|
log();
|
|
if (x > y)
|
|
return x;
|
|
return y;
|
|
}
|
|
|
|
// Functions below are not clones and should not be reported.
|
|
|
|
// The next two functions test that statement classes are still respected when
|
|
// checking for clones in expressions. This will show that the statement
|
|
// specific data of all base classes is collected, and not just the data of the
|
|
// first base class.
|
|
int testBaseClass(int a, int b) { // no-warning
|
|
log();
|
|
if (a > b)
|
|
return true ? a : b;
|
|
return b;
|
|
}
|
|
int testBaseClass2(int a, int b) { // no-warning
|
|
log();
|
|
if (a > b)
|
|
return __builtin_choose_expr(true, a, b);
|
|
return b;
|
|
}
|
|
|
|
// No clone because of the different comparison operator.
|
|
int min1(int a, int b) { // no-warning
|
|
log();
|
|
if (a < b)
|
|
return a;
|
|
return b;
|
|
}
|
|
|
|
// No clone because of the different pattern in which the variables are used.
|
|
int min2(int a, int b) { // no-warning
|
|
log();
|
|
if (a > b)
|
|
return b;
|
|
return a;
|
|
}
|
|
|
|
int foo(int a, int b) { // no-warning
|
|
return a + b;
|
|
}
|