[clang] [CIR] Upstream global variable linkage types (PR #129072)

[David Olsen via cfe-commits]

================
@@ -0,0 +1,63 @@
+//===- CIROpInterfaces.td - CIR Op Interface Definitions --------*- C++ -*-===//
+//
+// 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 MLIR_CIR_OP_INTERFACES
+#define MLIR_CIR_OP_INTERFACES
+
+include "mlir/IR/OpBase.td"
+
+let cppNamespace = "::cir" in {
+  def CIRGlobalValueInterface
+      : OpInterface<"CIRGlobalValueInterface"> {
+
+    let methods = [
+      InterfaceMethod<"",
+      "bool", "hasAvailableExternallyLinkage", (ins), [{}],
+      /*defaultImplementation=*/[{ return false; }]
+      >,
+      InterfaceMethod<"",
+      "bool", "hasLocalLinkage", (ins), [{}],
+      /*defaultImplementation=*/[{
+        return cir::isLocalLinkage($_op.getLinkage());
+      }]
+      >,
+      InterfaceMethod<"",
+      "bool", "hasExternalWeakLinkage", (ins), [{}],
+      /*defaultImplementation=*/[{
+        return cir::isExternalWeakLinkage($_op.getLinkage());
+      }]
+      >,
+      InterfaceMethod<"",
+      "bool", "isExternalLinkage", (ins), [{}],
+      /*defaultImplementation=*/[{
+        return cir::isExternalLinkage($_op.getLinkage());
+      }]
+      >,
+      InterfaceMethod<"",
+      "bool", "isDeclarationForLinker", (ins), [{}],
+      /*defaultImplementation=*/[{
+        if ($_op.hasAvailableExternallyLinkage())
+          return true;
+        return $_op.isDeclaration();
+      }]
+      >,
+      InterfaceMethod<"",
+      "void", "setDSOLocal", (ins "bool":$val), [{}],
+      /*defaultImplementation=*/[{
+        $_op.setDsolocal(val);
+      }]
+      >,
+    ];
+    let extraClassDeclaration = [{
+    bool canBenefitFromLocalAlias();
+  }];
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dkolsen-pgi wrote:

Please fix the indentation.

https://github.com/llvm/llvm-project/pull/129072