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"
13using namespace llvm;
14
15namespace {
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.
20struct 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
36char StripNonLineTableDebugInfo::ID = 0;
37INITIALIZE_PASS(StripNonLineTableDebugInfo, "strip-nonlinetable-debuginfo",
38                "Strip all debug info except linetables", false, false)
39
40ModulePass *llvm::createStripNonLineTableDebugInfoPass() {
41  return new StripNonLineTableDebugInfo();
42}
43