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diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUMemoryUtils.h b/llvm/lib/Target/AMDGPU/Utils/AMDGPUMemoryUtils.h
new file mode 100644
index 000000000000..65ed02ca62de
--- /dev/null
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUMemoryUtils.h
@@ -0,0 +1,51 @@
+//===- AMDGPUMemoryUtils.h - Memory related helper functions -*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H
+#define LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H
+
+#include <vector>
+
+namespace llvm {
+
+struct Align;
+class AAResults;
+class ConstantExpr;
+class DataLayout;
+class Function;
+class GlobalVariable;
+class LoadInst;
+class MemoryDef;
+class MemorySSA;
+class Module;
+class Value;
+
+namespace AMDGPU {
+
+Align getAlign(DataLayout const &DL, const GlobalVariable *GV);
+
+std::vector<GlobalVariable *> findVariablesToLower(Module &M,
+                                                   const Function *F = nullptr);
+
+/// Replace all uses of constant \p C with instructions in \p F.
+void replaceConstantUsesInFunction(ConstantExpr *C, const Function *F);
+
+/// Given a \p Def clobbering a load from \p Ptr according to the MSSA check
+/// if this is actually a memory update or an artificial clobber to facilitate
+/// ordering constraints.
+bool isReallyAClobber(const Value *Ptr, MemoryDef *Def, AAResults *AA);
+
+/// Check is a \p Load is clobbered in its function.
+bool isClobberedInFunction(const LoadInst *Load, MemorySSA *MSSA,
+                           AAResults *AA);
+
+} // end namespace AMDGPU
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUMEMORYUTILS_H