[llvm] [Xtensa] Initial codegen support from IR (PR #78548)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,43 @@
+//===- XtensaMCInstLower.h - Lower MachineInstr to MCInst ------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// 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 LLVM_LIB_TARGET_XTENSA_XTENSAMCINSTLOWER_H
+#define LLVM_LIB_TARGET_XTENSA_XTENSAMCINSTLOWER_H
+
+#include "XtensaAsmPrinter.h"
+#include "llvm/CodeGen/MachineOperand.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+class MCContext;
+class MCInst;
+class MCOperand;
+class MCSymbol;
+class MachineInstr;
+class MachineOperand;
+class XtensaAsmPrinter;
+
+class LLVM_LIBRARY_VISIBILITY XtensaMCInstLower {
+  MCContext &Ctx;
----------------
MaskRay wrote:

`warning: private field 'Ctx' is not used [-Wunused-private-field]`

https://github.com/llvm/llvm-project/pull/78548