[clang] [CIR] Call code gen; create empty cir.func op (PR #113483)

[Ronan Keryell via cfe-commits]

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@@ -0,0 +1,38 @@
+//===- CIRAttrs.cpp - MLIR CIR Attributes ---------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the attributes in the CIR dialect.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/CIR/Dialect/IR/CIRDialect.h"
+
+using namespace mlir;
+using namespace mlir::cir;
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keryell wrote:

What about removing all the `using namespace` since this is a new start to the project?

https://github.com/llvm/llvm-project/pull/113483