llvm/lib/Transforms/Utils/StripNonLineTableDebugInfo.cpp

   1 //===- StripNonLineTableDebugInfo.cpp -- Strip parts of Debug Info --------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/IR/DebugInfo.h"
  10 #include "llvm/InitializePasses.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 }