@@ -1816,6 +1816,14 @@ vague_linkage_p (tree decl)
{
if (!TREE_PUBLIC (decl))
{
+ /* maybe_thunk_body clears TREE_PUBLIC on the maybe-in-charge 'tor
+ variants, check one of the "clones" for the real linkage. */
+ if ((DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (decl)
+ || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (decl))
+ && DECL_CHAIN (decl)
+ && DECL_CLONED_FUNCTION (DECL_CHAIN (decl)))
+ return vague_linkage_p (DECL_CHAIN (decl));
+
gcc_checking_assert (!DECL_COMDAT (decl));
return false;
}
@@ -4418,6 +4418,14 @@ decl_linkage (tree decl)
if (TREE_PUBLIC (decl))
return lk_external;
+ /* maybe_thunk_body clears TREE_PUBLIC on the maybe-in-charge 'tor variants,
+ check one of the "clones" for the real linkage. */
+ if ((DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (decl)
+ || DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (decl))
+ && DECL_CHAIN (decl)
+ && DECL_CLONED_FUNCTION (DECL_CHAIN (decl)))
+ return decl_linkage (DECL_CHAIN (decl));
+
if (TREE_CODE (decl) == NAMESPACE_DECL)
return lk_external;
new file mode 100644
@@ -0,0 +1,16 @@
+// PR c++/79176
+// { dg-do compile { target c++11 } }
+// { dg-options "-flto -Os" }
+
+struct A {};
+struct Object {
+ virtual bool m_fn1();
+ virtual ~Object();
+};
+struct Item : Object, virtual A {
+ ~Item() {
+ [] {};
+ }
+ bool m_fn1();
+};
+bool Item::m_fn1() {}