3 files changed, 37 insertions, 0 deletions
diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index c1ed43562ba..e0ea2082de5 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -219,6 +219,7 @@ void initializeLoopDeletionLegacyPassPass(PassRegistry&);
 void initializeLoopDistributeLegacyPass(PassRegistry&);
 void initializeLoopExtractorPass(PassRegistry&);
 void initializeLoopGuardWideningLegacyPassPass(PassRegistry&);
+void initializeLoopFuseLegacyPass(PassRegistry&);
 void initializeLoopIdiomRecognizeLegacyPassPass(PassRegistry&);
 void initializeLoopInfoWrapperPassPass(PassRegistry&);
 void initializeLoopInstSimplifyLegacyPassPass(PassRegistry&);
diff --git a/llvm/include/llvm/Transforms/Scalar.h b/llvm/include/llvm/Transforms/Scalar.h
index 402ee6f951b..8e868277b41 100644
--- a/llvm/include/llvm/Transforms/Scalar.h
+++ b/llvm/include/llvm/Transforms/Scalar.h
@@ -460,6 +460,12 @@ FunctionPass *createLoopDistributePass();
 
 //===----------------------------------------------------------------------===//
 //
+// LoopFuse - Fuse loops.
+//
+FunctionPass *createLoopFusePass();
+
+//===----------------------------------------------------------------------===//
+//
 // LoopLoadElimination - Perform loop-aware load elimination.
 //
 FunctionPass *createLoopLoadEliminationPass();
diff --git a/llvm/include/llvm/Transforms/Scalar/LoopFuse.h b/llvm/include/llvm/Transforms/Scalar/LoopFuse.h
new file mode 100644
index 00000000000..d3a02db6bd2
--- /dev/null
+++ b/llvm/include/llvm/Transforms/Scalar/LoopFuse.h
@@ -0,0 +1,30 @@
+//===- LoopFuse.h - Loop Fusion Pass ----------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the Loop Fusion pass.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_SCALAR_LOOPFUSE_H
+#define LLVM_TRANSFORMS_SCALAR_LOOPFUSE_H
+
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+
+class Function;
+
+class LoopFusePass : public PassInfoMixin<LoopFusePass> {
+public:
+  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_TRANSFORMS_SCALAR_LOOPFUSE_H