diff --git a/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp b/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
index 7a0a9bceac23..74af213e9605 100644
--- a/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
+++ b/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
@@ -540,13 +540,20 @@ class CIRFuncOpLowering : public mlir::OpConversionPattern<cir::FuncOp> {
       signatureConversion.addInputs(argType.index(), convertedType);
     }
 
+    SmallVector<mlir::NamedAttribute, 2> passThroughAttrs;
+
+    if (auto symVisibilityAttr = op.getSymVisibilityAttr())
+      passThroughAttrs.push_back(
+          rewriter.getNamedAttr("sym_visibility", symVisibilityAttr));
+
     mlir::Type resultType =
         getTypeConverter()->convertType(fnType.getReturnType());
     auto fn = rewriter.create<mlir::func::FuncOp>(
         op.getLoc(), op.getName(),
         rewriter.getFunctionType(signatureConversion.getConvertedTypes(),
                                  resultType ? mlir::TypeRange(resultType)
-                                            : mlir::TypeRange()));
+                                            : mlir::TypeRange()),
+        passThroughAttrs);
 
     if (failed(rewriter.convertRegionTypes(&op.getBody(), *typeConverter,
                                            &signatureConversion)))
diff --git a/clang/lib/CIR/Lowering/ThroughMLIR/LowerMLIRToLLVM.cpp b/clang/lib/CIR/Lowering/ThroughMLIR/LowerMLIRToLLVM.cpp
index f46fe4533c2f..c30dfd788d0c 100644
--- a/clang/lib/CIR/Lowering/ThroughMLIR/LowerMLIRToLLVM.cpp
+++ b/clang/lib/CIR/Lowering/ThroughMLIR/LowerMLIRToLLVM.cpp
@@ -24,6 +24,7 @@
 #include "mlir/Pass/PassManager.h"
 #include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
 #include "mlir/Transforms/DialectConversion.h"
+#include "clang/CIR/Dialect/IR/CIRDialect.h"
 #include "clang/CIR/Passes.h"
 
 using namespace cir;
@@ -62,6 +63,17 @@ void ConvertMLIRToLLVMPass::runOnOperation() {
   populateFuncToLLVMConversionPatterns(typeConverter, patterns);
 
   auto module = getOperation();
+
+  // Lower the module attributes to LLVM equivalents.
+  if (auto tripleAttr = module->getAttr(cir::CIRDialect::getTripleAttrName()))
+    module->setAttr(mlir::LLVM::LLVMDialect::getTargetTripleAttrName(),
+                    tripleAttr);
+
+  // Strip the CIR attributes.
+  module->removeAttr(cir::CIRDialect::getSOBAttrName());
+  module->removeAttr(cir::CIRDialect::getLangAttrName());
+  module->removeAttr(cir::CIRDialect::getTripleAttrName());
+
   if (failed(applyFullConversion(module, target, std::move(patterns))))
     signalPassFailure();
 }
diff --git a/clang/test/CIR/Lowering/ThroughMLIR/function-attributes.c b/clang/test/CIR/Lowering/ThroughMLIR/function-attributes.c
new file mode 100644
index 000000000000..e8a196e65005
--- /dev/null
+++ b/clang/test/CIR/Lowering/ThroughMLIR/function-attributes.c
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -fno-clangir-direct-lowering -emit-mlir=core %s -o %t.mlir 
+// RUN: FileCheck --input-file=%t.mlir %s
+
+// CHECK: func.func private @declaration(i32) -> i32
+
+int declaration(int x);
+int declaration_test() {
+  return declaration(15);
+}
diff --git a/clang/test/CIR/driver.c b/clang/test/CIR/driver.c
index fcafb71a0a4a..f06db665ebbd 100644
--- a/clang/test/CIR/driver.c
+++ b/clang/test/CIR/driver.c
@@ -25,6 +25,7 @@
 // RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR_MACOS
 // RUN: %clang -target arm64-apple-macosx12.0.0 -fclangir -S -emit-llvm %s -o %t3.ll
 // RUN: FileCheck --input-file=%t3.ll %s -check-prefix=LLVM_MACOS
+// RUN: %clang -target x86_64-unknown-linux-gnu -fclangir -fno-clangir-direct-lowering -c %s -o %t.o
 
 void foo(void) {}