[DRAFT][flang][Coarray] Dialect Coarray operations

Author: JDPailleux

flang/include/flang/Optimizer/Dialect/Coarray/CoarrayDialect.td

@@ -0,0 +1,38 @@
+//===-- CoarrayDialect.td - Coarray dialect base definitions - 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// Definition of the Coarray  dialect
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef FORTRAN_DIALECT_COARRAY_COARRAYDIALECT
+#define FORTRAN_DIALECT_COARRAY_COARRAYDIALECT
+
+include "mlir/IR/AttrTypeBase.td"
+include "mlir/IR/EnumAttr.td"
+include "mlir/IR/OpBase.td"
+
+def CoarrayDialect : Dialect {
+  let name = "coarray";
+
+  let summary = "Coarray dialect";
+
+  let description = [{
+    The "coarray" dialect is designed to contain the basic coarray operations
+    in Fortran as descibed in the standard.
+    This includes synchronization operations, atomic operations,
+    image queries, teams, criticals, etc. The Coarray dialect operations use 
+    the FIR types and are tightly coupled with FIR and HLFIR.
+  }];
+
+  let cppNamespace = "::coarray";
+  let dependentDialects = ["fir::FIROpsDialect"];
+}
+
+#endif // FORTRAN_DIALECT_COARRAY_COARRAYDIALECT