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