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// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-ipa=inlining -verify %s
void clang_analyzer_eval(bool);
void clang_analyzer_checkInlined(bool);
class A {
public:
int getZero() { return 0; }
virtual int getNum() { return 0; }
};
void test(A &a) {
clang_analyzer_eval(a.getZero() == 0); // expected-warning{{TRUE}}
clang_analyzer_eval(a.getNum() == 0); // expected-warning{{UNKNOWN}}
A copy(a);
clang_analyzer_eval(copy.getZero() == 0); // expected-warning{{TRUE}}
clang_analyzer_eval(copy.getNum() == 0); // expected-warning{{TRUE}}
}
class One : public A {
public:
virtual int getNum() { return 1; }
};
void testPathSensitivity(int x) {
A a;
One b;
A *ptr;
switch (x) {
case 0:
ptr = &a;
break;
case 1:
ptr = &b;
break;
default:
return;
}
// This should be true on both branches.
clang_analyzer_eval(ptr->getNum() == x); // expected-warning {{TRUE}}
}
namespace PureVirtualParent {
class Parent {
public:
virtual int pureVirtual() const = 0;
int callVirtual() const {
return pureVirtual();
}
};
class Child : public Parent {
public:
virtual int pureVirtual() const {
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
return 42;
}
};
void testVirtual() {
Child x;
clang_analyzer_eval(x.pureVirtual() == 42); // expected-warning{{TRUE}}
clang_analyzer_eval(x.callVirtual() == 42); // expected-warning{{TRUE}}
}
}
namespace PR13569 {
class Parent {
protected:
int m_parent;
virtual int impl() const = 0;
Parent() : m_parent(0) {}
public:
int interface() const {
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
return impl();
}
};
class Child : public Parent {
protected:
virtual int impl() const {
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
return m_parent + m_child;
}
public:
Child() : m_child(0) {}
int m_child;
};
void testVirtual() {
Child x;
x.m_child = 42;
// Don't crash when inlining and devirtualizing.
x.interface();
}
class Grandchild : public Child {};
void testDevirtualizeToMiddle() {
Grandchild x;
x.m_child = 42;
// Don't crash when inlining and devirtualizing.
x.interface();
}
}
namespace PR13569_virtual {
class Parent {
protected:
int m_parent;
virtual int impl() const = 0;
Parent() : m_parent(0) {}
public:
int interface() const {
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
return impl();
}
};
class Child : virtual public Parent {
protected:
virtual int impl() const {
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
return m_parent + m_child;
}
public:
Child() : m_child(0) {}
int m_child;
};
void testVirtual() {
Child x;
x.m_child = 42;
// Don't crash when inlining and devirtualizing.
x.interface();
}
class Grandchild : virtual public Child {};
void testDevirtualizeToMiddle() {
Grandchild x;
x.m_child = 42;
// Don't crash when inlining and devirtualizing.
x.interface();
}
}
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