[llvm] [WebAssembly] Add WebAssemblyMCExpr::Specifier (PR #133116)

[Sam Clegg via llvm-commits]

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@@ -0,0 +1,34 @@
+//===- WebAssembly specific MC expression classes ---------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "WebAssemblyMCExpr.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCValue.h"
+
+using namespace llvm;
+
+const WebAssemblyMCExpr *
+WebAssemblyMCExpr::create(const MCExpr *Expr, Specifier S, MCContext &Ctx) {
+  return new (Ctx) WebAssemblyMCExpr(Expr, S);
+}
+
+void WebAssemblyMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
+}
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sbc100 wrote:

Why put this empty function in the `.cpp` file?

https://github.com/llvm/llvm-project/pull/133116