diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index 76ef789fc34..e3c5a2b00f1 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -3082,10 +3082,19 @@ llvm::Constant *CodeGenModule::GetAddrOfGlobalTemporary( // Create a global variable for this lifetime-extended temporary. llvm::GlobalValue::LinkageTypes Linkage = getLLVMLinkageVarDefinition(VD, Constant); - // There is no need for this temporary to have global linkage if the global - // variable has external linkage. - if (Linkage == llvm::GlobalVariable::ExternalLinkage) - Linkage = llvm::GlobalVariable::PrivateLinkage; + if (Linkage == llvm::GlobalVariable::ExternalLinkage) { + const VarDecl *InitVD; + if (VD->isStaticDataMember() && VD->getAnyInitializer(InitVD) && + isa<CXXRecordDecl>(InitVD->getLexicalDeclContext())) { + // Temporaries defined inside a class get linkonce_odr linkage because the + // class can be defined in multipe translation units. + Linkage = llvm::GlobalVariable::LinkOnceODRLinkage; + } else { + // There is no need for this temporary to have external linkage if the + // VarDecl has external linkage. + Linkage = llvm::GlobalVariable::InternalLinkage; + } + } unsigned AddrSpace = GetGlobalVarAddressSpace( VD, getContext().getTargetAddressSpace(MaterializedType)); auto *GV = new llvm::GlobalVariable( |
