lib/Transforms/Utils/StripNonLineTableDebugInfo.cpp

   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 }