1*f4a2713aSLionel Sambuc // no PCH 2*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -emit-llvm-only -include %s -include %s %s 3*f4a2713aSLionel Sambuc // with PCH 4*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -emit-llvm-only -chain-include %s -chain-include %s %s 5*f4a2713aSLionel Sambuc #if !defined(PASS1) 6*f4a2713aSLionel Sambuc #define PASS1 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc // A base with a virtual dtor. 9*f4a2713aSLionel Sambuc struct A { 10*f4a2713aSLionel Sambuc virtual ~A(); 11*f4a2713aSLionel Sambuc }; 12*f4a2713aSLionel Sambuc 13*f4a2713aSLionel Sambuc // A derived class with an implicit virtual dtor. 14*f4a2713aSLionel Sambuc struct B : A { 15*f4a2713aSLionel Sambuc // Key function to suppress vtable definition. 16*f4a2713aSLionel Sambuc virtual void virt(); 17*f4a2713aSLionel Sambuc }; 18*f4a2713aSLionel Sambuc 19*f4a2713aSLionel Sambuc #elif !defined(PASS2) 20*f4a2713aSLionel Sambuc #define PASS2 21*f4a2713aSLionel Sambuc 22*f4a2713aSLionel Sambuc // Further derived class that requires ~B(). 23*f4a2713aSLionel Sambuc // Causes definition of ~B(), but it was lost when saving PCH. 24*f4a2713aSLionel Sambuc struct C : B { 25*f4a2713aSLionel Sambuc C(); ~CC26*f4a2713aSLionel Sambuc ~C() {} 27*f4a2713aSLionel Sambuc }; 28*f4a2713aSLionel Sambuc 29*f4a2713aSLionel Sambuc #else 30*f4a2713aSLionel Sambuc foo()31*f4a2713aSLionel Sambucvoid foo() { 32*f4a2713aSLionel Sambuc // Variable that requires ~C(). 33*f4a2713aSLionel Sambuc C c; 34*f4a2713aSLionel Sambuc } 35*f4a2713aSLionel Sambuc 36*f4a2713aSLionel Sambuc // VTable placement would again cause definition of ~B(), hiding the bug, 37*f4a2713aSLionel Sambuc // if not for B::virt(), which suppresses the placement. 38*f4a2713aSLionel Sambuc 39*f4a2713aSLionel Sambuc #endif 40