[CIR] Clean up visibility conversion (NFC)

Author: xlauko

clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp

@@ -2015,9 +2015,8 @@ mlir::LogicalResult CIRToLLVMFuncOpLowering::matchAndRewrite(
     fn.setAlwaysInline(*inlineKind == cir::InlineKind::AlwaysInline);
   }
 
-  fn.setVisibility_Attr(mlir::LLVM::VisibilityAttr::get(
-      getContext(), lowerCIRVisibilityToLLVMVisibility(
-                        op.getGlobalVisibilityAttr().getValue())));
+  fn.setVisibility_(
+      lowerCIRVisibilityToLLVMVisibility(op.getGlobalVisibility()));
 
   rewriter.inlineRegionBefore(op.getBody(), fn.getBody(), fn.end());
   if (failed(rewriter.convertRegionTypes(&fn.getBody(), *typeConverter,
@@ -2161,14 +2160,13 @@ mlir::LogicalResult CIRToLLVMGlobalOpLowering::matchAndRewrite(
     }
   }
 
-  // Rewrite op.
+  mlir::LLVM::Visibility visibility =
+      lowerCIRVisibilityToLLVMVisibility(op.getGlobalVisibility());
   mlir::SymbolRefAttr comdatAttr = getComdatAttr(op, rewriter);
   auto newOp = rewriter.replaceOpWithNewOp<mlir::LLVM::GlobalOp>(
       op, llvmType, isConst, linkage, symbol, init.value_or(mlir::Attribute()),
       alignment, addrSpace, isDsoLocal, isThreadLocal, comdatAttr, attributes);
-  newOp.setVisibility_Attr(mlir::LLVM::VisibilityAttr::get(
-      getContext(), lowerCIRVisibilityToLLVMVisibility(
-                        op.getGlobalVisibilityAttr().getValue())));
+  newOp.setVisibility_(visibility);
 
   return mlir::success();
 }