1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveDebugValues/LiveDebugValues.h b/llvm/lib/CodeGen/LiveDebugValues/LiveDebugValues.h
new file mode 100644
index 000000000000..6b05bc68d74d
--- /dev/null
+++ b/llvm/lib/CodeGen/LiveDebugValues/LiveDebugValues.h
@@ -0,0 +1,32 @@
+//===- LiveDebugValues.cpp - Tracking Debug Value MIs ---------*- 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 "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/TargetPassConfig.h"
+
+namespace llvm {
+
+// Inline namespace for types / symbols shared between different
+// LiveDebugValues implementations.
+inline namespace SharedLiveDebugValues {
+
+// Expose a base class for LiveDebugValues interfaces to inherit from. This
+// allows the generic LiveDebugValues pass handles to call into the
+// implementation.
+class LDVImpl {
+public:
+  virtual bool ExtendRanges(MachineFunction &MF, TargetPassConfig *TPC) = 0;
+  virtual ~LDVImpl() {}
+};
+
+} // namespace SharedLiveDebugValues
+
+// Factory functions for LiveDebugValues implementations.
+extern LDVImpl *makeVarLocBasedLiveDebugValues();
+extern LDVImpl *makeInstrRefBasedLiveDebugValues();
+} // namespace llvm