diff --git a/mlir/lib/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.cpp b/mlir/lib/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.cpp
--- a/mlir/lib/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.cpp
@@ -24,6 +24,9 @@
 using namespace mlir;
 using namespace mlir::LLVM;
 
+static ::llvm::GlobalValue::LinkageTypes
+convertLinkageToLLVM(::mlir::LLVM::Linkage value) __attribute__((unused));
+
 #include "mlir/Dialect/LLVMIR/LLVMConversionEnumsToLLVM.inc"
 
 /// Convert MLIR integer comparison predicate to LLVM IR comparison predicate.
diff --git a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
--- a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
@@ -44,6 +44,9 @@
 using namespace mlir::LLVM;
 using namespace mlir::LLVM::detail;
 
+static ::llvm::InlineAsm::AsmDialect
+convertAsmDialectToLLVM(::mlir::LLVM::AsmDialect value) __attribute__((unused));
+
 #include "mlir/Dialect/LLVMIR/LLVMConversionEnumsToLLVM.inc"
 
 /// Builds a constant of a sequential LLVM type `type`, potentially containing