diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/ItaniumCXXABI.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp index c82b9677eac..d1f47b6d1a4 100644 --- a/clang/lib/CodeGen/ItaniumCXXABI.cpp +++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp @@ -284,6 +284,14 @@ public: // linkage together with vtables when needed. if (ForVTable && !Thunk->hasLocalLinkage()) Thunk->setLinkage(llvm::GlobalValue::AvailableExternallyLinkage); + + // Propagate dllexport storage, to enable the linker to generate import + // thunks as necessary (e.g. when a parent class has a key function and a + // child class doesn't, and the construction vtable for the parent in the + // child needs to reference the parent's thunks). + const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl()); + if (MD->hasAttr<DLLExportAttr>()) + Thunk->setDLLStorageClass(llvm::GlobalValue::DLLExportStorageClass); } llvm::Value *performThisAdjustment(CodeGenFunction &CGF, Address This, |
