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      1 //===- GlobalOpt.h - Optimize Global Variables ------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This pass transforms simple global variables that never have their address
     11 // taken.  If obviously true, it marks read/write globals as constant, deletes
     12 // variables only stored to, etc.
     13 //
     14 //===----------------------------------------------------------------------===//
     15 
     16 #ifndef LLVM_TRANSFORMS_IPO_GLOBALOPT_H
     17 #define LLVM_TRANSFORMS_IPO_GLOBALOPT_H
     18 
     19 #include "llvm/IR/Module.h"
     20 #include "llvm/IR/PassManager.h"
     21 
     22 namespace llvm {
     23 
     24 /// Optimize globals that never have their address taken.
     25 class GlobalOptPass : public PassInfoMixin<GlobalOptPass> {
     26 public:
     27   PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
     28 };
     29 
     30 }
     31 
     32 #endif // LLVM_TRANSFORMS_IPO_GLOBALOPT_H
     33