llvm-project/clang/test/Analysis/inlining/dyn-dispatch-bifurcate.cpp

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// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-config ipa=dynamic-bifurcate -verify -Wno-reinterpret-base-class %s
void clang_analyzer_eval(bool);
class A {
public:
virtual int get() { return 0; }
};
void testBifurcation(A *a) {
clang_analyzer_eval(a->get() == 0); // expected-warning{{TRUE}} expected-warning{{UNKNOWN}}
}
void testKnown() {
A a;
clang_analyzer_eval(a.get() == 0); // expected-warning{{TRUE}}
}
void testNew() {
A *a = new A();
clang_analyzer_eval(a->get() == 0); // expected-warning{{TRUE}}
}
namespace ReinterpretDisruptsDynamicTypeInfo {
class Parent {};
class Child : public Parent {
public:
virtual int foo() { return 42; }
};
void test(Parent *a) {
Child *b = reinterpret_cast<Child *>(a);
if (!b) return;
clang_analyzer_eval(b->foo() == 42); // expected-warning{{UNKNOWN}}
}
}