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diff --git a/clang-r353983/include/llvm/Analysis/GlobalsModRef.h b/clang-r353983/include/llvm/Analysis/GlobalsModRef.h
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+//===- GlobalsModRef.h - Simple Mod/Ref AA for Globals ----------*- 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 is the interface for a simple mod/ref and alias analysis over globals.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_GLOBALSMODREF_H
+#define LLVM_ANALYSIS_GLOBALSMODREF_H
+
+#include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/Analysis/CallGraph.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/Pass.h"
+#include <list>
+
+namespace llvm {
+
+/// An alias analysis result set for globals.
+///
+/// This focuses on handling aliasing properties of globals and interprocedural
+/// function call mod/ref information.
+class GlobalsAAResult : public AAResultBase<GlobalsAAResult> {
+  friend AAResultBase<GlobalsAAResult>;
+
+  class FunctionInfo;
+
+  const DataLayout &DL;
+  const TargetLibraryInfo &TLI;
+
+  /// The globals that do not have their addresses taken.
+  SmallPtrSet<const GlobalValue *, 8> NonAddressTakenGlobals;
+
+  /// IndirectGlobals - The memory pointed to by this global is known to be
+  /// 'owned' by the global.
+  SmallPtrSet<const GlobalValue *, 8> IndirectGlobals;
+
+  /// AllocsForIndirectGlobals - If an instruction allocates memory for an
+  /// indirect global, this map indicates which one.
+  DenseMap<const Value *, const GlobalValue *> AllocsForIndirectGlobals;
+
+  /// For each function, keep track of what globals are modified or read.
+  DenseMap<const Function *, FunctionInfo> FunctionInfos;
+
+  /// A map of functions to SCC. The SCCs are described by a simple integer
+  /// ID that is only useful for comparing for equality (are two functions
+  /// in the same SCC or not?)
+  DenseMap<const Function *, unsigned> FunctionToSCCMap;
+
+  /// Handle to clear this analysis on deletion of values.
+  struct DeletionCallbackHandle final : CallbackVH {
+    GlobalsAAResult *GAR;
+    std::list<DeletionCallbackHandle>::iterator I;
+
+    DeletionCallbackHandle(GlobalsAAResult &GAR, Value *V)
+        : CallbackVH(V), GAR(&GAR) {}
+
+    void deleted() override;
+  };
+
+  /// List of callbacks for globals being tracked by this analysis. Note that
+  /// these objects are quite large, but we only anticipate having one per
+  /// global tracked by this analysis. There are numerous optimizations we
+  /// could perform to the memory utilization here if this becomes a problem.
+  std::list<DeletionCallbackHandle> Handles;
+
+  explicit GlobalsAAResult(const DataLayout &DL, const TargetLibraryInfo &TLI);
+
+public:
+  GlobalsAAResult(GlobalsAAResult &&Arg);
+  ~GlobalsAAResult();
+
+  static GlobalsAAResult analyzeModule(Module &M, const TargetLibraryInfo &TLI,
+                                       CallGraph &CG);
+
+  //------------------------------------------------
+  // Implement the AliasAnalysis API
+  //
+  AliasResult alias(const MemoryLocation &LocA, const MemoryLocation &LocB);
+
+  using AAResultBase::getModRefInfo;
+  ModRefInfo getModRefInfo(const CallBase *Call, const MemoryLocation &Loc);
+
+  /// getModRefBehavior - Return the behavior of the specified function if
+  /// called from the specified call site.  The call site may be null in which
+  /// case the most generic behavior of this function should be returned.
+  FunctionModRefBehavior getModRefBehavior(const Function *F);
+
+  /// getModRefBehavior - Return the behavior of the specified function if
+  /// called from the specified call site.  The call site may be null in which
+  /// case the most generic behavior of this function should be returned.
+  FunctionModRefBehavior getModRefBehavior(const CallBase *Call);
+
+private:
+  FunctionInfo *getFunctionInfo(const Function *F);
+
+  void AnalyzeGlobals(Module &M);
+  void AnalyzeCallGraph(CallGraph &CG, Module &M);
+  bool AnalyzeUsesOfPointer(Value *V,
+                            SmallPtrSetImpl<Function *> *Readers = nullptr,
+                            SmallPtrSetImpl<Function *> *Writers = nullptr,
+                            GlobalValue *OkayStoreDest = nullptr);
+  bool AnalyzeIndirectGlobalMemory(GlobalVariable *GV);
+  void CollectSCCMembership(CallGraph &CG);
+
+  bool isNonEscapingGlobalNoAlias(const GlobalValue *GV, const Value *V);
+  ModRefInfo getModRefInfoForArgument(const CallBase *Call,
+                                      const GlobalValue *GV);
+};
+
+/// Analysis pass providing a never-invalidated alias analysis result.
+class GlobalsAA : public AnalysisInfoMixin<GlobalsAA> {
+  friend AnalysisInfoMixin<GlobalsAA>;
+  static AnalysisKey Key;
+
+public:
+  typedef GlobalsAAResult Result;
+
+  GlobalsAAResult run(Module &M, ModuleAnalysisManager &AM);
+};
+
+/// Legacy wrapper pass to provide the GlobalsAAResult object.
+class GlobalsAAWrapperPass : public ModulePass {
+  std::unique_ptr<GlobalsAAResult> Result;
+
+public:
+  static char ID;
+
+  GlobalsAAWrapperPass();
+
+  GlobalsAAResult &getResult() { return *Result; }
+  const GlobalsAAResult &getResult() const { return *Result; }
+
+  bool runOnModule(Module &M) override;
+  bool doFinalization(Module &M) override;
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+};
+
+//===--------------------------------------------------------------------===//
+//
+// createGlobalsAAWrapperPass - This pass provides alias and mod/ref info for
+// global values that do not have their addresses taken.
+//
+ModulePass *createGlobalsAAWrapperPass();
+}
+
+#endif