1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUCombinerHelper.h b/llvm/lib/Target/AMDGPU/AMDGPUCombinerHelper.h
new file mode 100644
index 000000000000..1d4747136bf7
--- /dev/null
+++ b/llvm/lib/Target/AMDGPU/AMDGPUCombinerHelper.h
@@ -0,0 +1,26 @@
+//=== lib/CodeGen/GlobalISel/AMDGPUCombinerHelper.h -----------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This contains common combine transformations that may be used in a combine
+/// pass.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/GlobalISel/Combiner.h"
+#include "llvm/CodeGen/GlobalISel/CombinerHelper.h"
+
+using namespace llvm;
+
+class AMDGPUCombinerHelper : public CombinerHelper {
+public:
+  using CombinerHelper::CombinerHelper;
+
+  bool matchFoldableFneg(MachineInstr &MI, MachineInstr *&MatchInfo);
+  void applyFoldableFneg(MachineInstr &MI, MachineInstr *&MatchInfo);
+};