labels.cpp
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// RUN: %clang_analyze_cc1 -std=gnu++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
// expected-no-diagnostics
bool foo1(int x) {
start:
if (x != 3) {
++x;
void *ptr = &&start;
goto start;
}
end:
return false;
}
// Targeting a different label with the address-of-label operator.
bool foo2(int x) {
start:
if (x != 3) {
++x;
void *ptr = &&end;
goto start;
}
end:
return false;
}
// Different target label in goto
bool foo3(int x) {
start:
if (x != 3) {
++x;
void *ptr = &&start;
goto end;
}
end:
return false;
}
// FIXME: Can't detect same algorithm as in foo1 but with different label names.
bool foo4(int x) {
foo:
if (x != 3) {
++x;
void *ptr = &&foo;
goto foo;
}
end:
return false;
}