[llvm] [CodeGen][RISCV] Add helper class for emitting CFI instructions into MIR (PR #135845)

[Sergei Barannikov via llvm-commits]

================
@@ -0,0 +1,88 @@
+//===----------------------------------------------------------------------===//
+//
+// 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_CODEGEN_CFIINSTREMITTERHELPER_H
+#define LLVM_CODEGEN_CFIINSTREMITTERHELPER_H
+
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/TargetInstrInfo.h"
+#include "llvm/CodeGen/TargetRegisterInfo.h"
+#include "llvm/MC/MCDwarf.h"
+
+namespace llvm {
+
+/// Helper class for emitting CFI instructions into Machine IR.
+class CFIInstEmitterHelper {
----------------
s-barannikov wrote:

Builder it is, thanks

https://github.com/llvm/llvm-project/pull/135845