5c553e3785
We would end up marking the vtable of the derived class as used for no reason. Because the call itself is qualified, it is never virtual, and the vtable of the derived class isn't helpful. We would end up rejecting code that MSVC accepts for no benefit. See http://crbug.com/413478 llvm-svn: 217910
48 lines
948 B
C++
48 lines
948 B
C++
// RUN: %clang_cc1 -verify -std=c++11 %s
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template <typename T> struct OwnPtr {
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T *p;
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~OwnPtr() {
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// expected-error@+1 {{invalid application of 'sizeof'}}
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static_assert(sizeof(T) > 0, "incomplete T");
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delete p;
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}
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};
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namespace use_vtable_for_vcall {
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struct Incomplete; // expected-note {{forward declaration}}
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struct A {
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virtual ~A() {}
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virtual void m() {}
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};
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struct B : A { // expected-note {{in instantiation}}
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B();
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virtual void m() { }
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virtual void m2() { static_cast<A *>(this)->m(); }
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OwnPtr<Incomplete> m_sqlError;
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};
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B *f() {
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return new B();
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}
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}
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namespace dont_mark_qualified_vcall {
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struct Incomplete;
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struct A {
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virtual ~A() {}
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virtual void m() {}
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};
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struct B : A {
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B();
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// Previously we would mark B's vtable referenced to devirtualize this call to
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// A::m, even though it's not a virtual call.
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virtual void m() { A::m(); }
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OwnPtr<Incomplete> m_sqlError;
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};
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B *f() {
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return new B();
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}
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}
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