[mlir][linalg] Create a dedicated target for LinalgRelayoutInterface

For context and rationale, see:
  * llvm#127533

Author: banach-space

mlir/include/mlir/Dialect/Linalg/IR/CMakeLists.txt

@@ -72,6 +72,12 @@ add_public_tablegen_target(MLIRLinalgRelayoutOpsIncGen)
 add_dependencies(MLIRLinalgRelayoutOpsIncGen LinalgOdsGen)
 add_dependencies(mlir-headers MLIRLinalgRelayoutOpsIncGen)
 
+set(LLVM_TARGET_DEFINITIONS LinalgRelayoutInterface.td)
+mlir_tablegen(LinalgRelayoutInterface.h.inc -gen-op-interface-decls)
+mlir_tablegen(LinalgRelayoutInterface.cpp.inc -gen-op-interface-defs)
+add_public_tablegen_target(MLIRLinalgRelayoutInterfaceIncGen)
+add_dependencies(mlir-headers MLIRLinalgRelayoutInterfaceIncGen)
+
 set(LLVM_TARGET_DEFINITIONS LinalgInterfaces.td)
 mlir_tablegen(LinalgInterfaces.h.inc -gen-op-interface-decls)
 mlir_tablegen(LinalgInterfaces.cpp.inc -gen-op-interface-defs)

mlir/include/mlir/Dialect/Linalg/IR/LinalgInterfaces.h

@@ -221,4 +221,7 @@ LogicalResult verifyStructuredOpInterface(Operation *op);
 /// Include the generated interface declarations.
 #include "mlir/Dialect/Linalg/IR/LinalgInterfaces.h.inc"
 
+/// Include the generated relayout interface declarations.
+#include "mlir/Dialect/Linalg/IR/LinalgRelayoutInterface.h.inc"
+
 #endif // MLIR_DIALECT_LINALG_IR_LINALGINTERFACES_H_

mlir/include/mlir/Dialect/Linalg/IR/LinalgInterfaces.td

@@ -178,16 +178,6 @@ def LinalgConvolutionOpInterface : OpInterface<"ConvolutionOpInterface"> {
   ];
 }
 
-def LinalgRelayoutOpInterface : OpInterface<"RelayoutOpInterface"> {
-  let description = [{
-    A Linalg relayout-op is either linalg.pack or linalg.unpack.
-
-    While we could extend this interface with methods from Linalg_RelayoutOp,
-    this is currently not needed and left as a TODO.
-  }];
-  let cppNamespace = "::mlir::linalg";
-}
-
 def LinalgFillOpInterface : OpInterface<"FillOpInterface"> {
   let description = [{
     A fill operation is defined in general terms:

mlir/include/mlir/Dialect/Linalg/IR/LinalgRelayoutInterface.td

@@ -0,0 +1,25 @@
+//===- LinalgInterfaces.td - Linalg Interfaces Declaration -*- tablegen -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LINALG_IR_LINALGRELAYOUTINTERFACE
+#define LINALG_IR_LINALGRELAYOUTINTERFACE
+
+include "mlir/Interfaces/DestinationStyleOpInterface.td"
+include "mlir/IR/OpBase.td"
+
+def LinalgRelayoutOpInterface : OpInterface<"RelayoutOpInterface"> {
+  let description = [{
+    A Linalg relayout-op is either linalg.pack or linalg.unpack.
+
+    While we could extend this interface with methods from Linalg_RelayoutOp,
+    this is currently not needed and left as a TODO.
+  }];
+  let cppNamespace = "::mlir::linalg";
+}
+
+#endif // LINALG_IR_LINALGRELAYOUTINTERFACE

mlir/include/mlir/Dialect/Linalg/IR/LinalgRelayoutOps.td

@@ -23,6 +23,7 @@ include "mlir/Interfaces/DestinationStyleOpInterface.td"
 include "mlir/Interfaces/SideEffectInterfaces.td"
 include "mlir/Interfaces/InferTypeOpInterface.td"
 include "mlir/Dialect/Linalg/IR/LinalgInterfaces.td"
+include "mlir/Dialect/Linalg/IR/LinalgRelayoutInterface.td"
 include "mlir/IR/OpAsmInterface.td"
 
 //===----------------------------------------------------------------------===//

mlir/lib/Dialect/Tensor/IR/TensorOps.cpp

@@ -10,7 +10,7 @@
 #include "mlir/Dialect/Arith/IR/Arith.h"
 #include "mlir/Dialect/Arith/Utils/Utils.h"
 #include "mlir/Dialect/Complex/IR/Complex.h"
-#include "mlir/Dialect/Linalg/IR/Linalg.h"
+#include "mlir/Dialect/Linalg/IR/LinalgRelayoutInterface.h.inc"
 #include "mlir/Dialect/Tensor/IR/Tensor.h"
 #include "mlir/Dialect/Tensor/Utils/Utils.h"
 #include "mlir/Dialect/Utils/IndexingUtils.h"