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40 lines
780 B
40 lines
780 B
4 months ago
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// no PCH
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// RUN: %clang_cc1 -emit-llvm-only -include %s -include %s %s
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// with PCH
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// RUN: %clang_cc1 -emit-llvm-only -chain-include %s -chain-include %s %s
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#if !defined(PASS1)
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#define PASS1
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// A base with a virtual dtor.
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struct A {
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virtual ~A();
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};
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// A derived class with an implicit virtual dtor.
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struct B : A {
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// Key function to suppress vtable definition.
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virtual void virt();
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};
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#elif !defined(PASS2)
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#define PASS2
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// Further derived class that requires ~B().
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// Causes definition of ~B(), but it was lost when saving PCH.
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struct C : B {
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C();
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~C() {}
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};
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#else
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void foo() {
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// Variable that requires ~C().
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C c;
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}
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// VTable placement would again cause definition of ~B(), hiding the bug,
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// if not for B::virt(), which suppresses the placement.
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#endif
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