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      1 //==------ UpdateCompilerUsed.h - LLVM Link Time Optimizer Utility --------===//
      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 file declares a helper class to update llvm.compiler_used metadata.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_LTO_UPDATE_COMPILER_USED_H
     15 #define LLVM_LTO_UPDATE_COMPILER_USED_H
     16 
     17 #include "llvm/ADT/StringSet.h"
     18 #include "llvm/IR/GlobalValue.h"
     19 
     20 namespace llvm {
     21 class Module;
     22 class TargetMachine;
     23 
     24 /// Find all globals in \p TheModule that are referenced in
     25 /// \p AsmUndefinedRefs, as well as the user-supplied functions definitions that
     26 /// are also libcalls, and create or update the magic "llvm.compiler_used"
     27 /// global in \p TheModule.
     28 void updateCompilerUsed(Module &TheModule, const TargetMachine &TM,
     29                         const StringSet<> &AsmUndefinedRefs);
     30 }
     31 
     32 #endif // LLVM_LTO_UPDATE_COMPILER_USED_H
     33