1 // RUN: %clang_cc1 -triple i686-linux-gnu %s -emit-llvm -o - | FileCheck %s 2 3 class A { 4 // append has to have the same prototype as fn1 to tickle the bug. 5 void (*append)(A *); 6 }; 7 8 class B {}; 9 class D; 10 11 // C has to be non-C++98 POD with available tail padding, making the LLVM base 12 // type differ from the complete LLVM type. 13 class C { 14 // This member creates a circular LLVM type reference to %class.D. 15 D *m_group; 16 B changeListeners; 17 }; 18 class D : C {}; 19 20 A p1; 21 C p2; 22 D p3; 23 24 // We end up using an opaque type for 'append' to avoid circular references. 25 // CHECK: %class.A = type { ptr } 26 // CHECK: %class.C = type <{ ptr, [4 x i8] }> 27 // CHECK: %class.D = type { %class.C.base, [3 x i8] } 28 // CHECK: %class.C.base = type <{ ptr, i8 }> 29