[clang] [CIR] Add PointerLikeType interface support for cir::PointerType (PR #139768)

[Razvan Lupusoru via cfe-commits]

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@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 contains external dialect interfaces for CIR.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CIR_DIALECT_OPENACC_CIROPENACCTYPEINTERFACES_H
+#define CLANG_CIR_DIALECT_OPENACC_CIROPENACCTYPEINTERFACES_H
+
+#include "mlir/Dialect/OpenACC/OpenACC.h"
+#include "clang/CIR/Dialect/IR/CIRTypes.h"
+
+namespace cir::acc {
+
+template <typename T>
+struct OpenACCPointerLikeModel
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razvanlupusoru wrote:

Maybe this clarifies it a bit?
https://mlir.llvm.org/docs/Interfaces/#external-models-for-attribute-operation-and-type-interfaces

https://github.com/llvm/llvm-project/pull/139768