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      1 //===- StripNonLineTableDebugInfo.cpp -- Strip parts of Debug Info --------===//
      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 #include "llvm/IR/DebugInfo.h"
     11 #include "llvm/Pass.h"
     12 #include "llvm/Transforms/Utils.h"
     13 using namespace llvm;
     14 
     15 namespace {
     16 
     17 /// This pass strips all debug info that is not related line tables.
     18 /// The result will be the same as if the program where compiled with
     19 /// -gline-tables-only.
     20 struct StripNonLineTableDebugInfo : public ModulePass {
     21   static char ID; // Pass identification, replacement for typeid
     22   StripNonLineTableDebugInfo() : ModulePass(ID) {
     23     initializeStripNonLineTableDebugInfoPass(*PassRegistry::getPassRegistry());
     24   }
     25 
     26   void getAnalysisUsage(AnalysisUsage &AU) const override {
     27     AU.setPreservesAll();
     28   }
     29 
     30   bool runOnModule(Module &M) override {
     31     return llvm::stripNonLineTableDebugInfo(M);
     32   }
     33 };
     34 }
     35 
     36 char StripNonLineTableDebugInfo::ID = 0;
     37 INITIALIZE_PASS(StripNonLineTableDebugInfo, "strip-nonlinetable-debuginfo",
     38                 "Strip all debug info except linetables", false, false)
     39 
     40 ModulePass *llvm::createStripNonLineTableDebugInfoPass() {
     41   return new StripNonLineTableDebugInfo();
     42 }
     43