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📄 AMDGPUEmitPrintf.cpp(8.57 KB)
📄 ASanStackFrameLayout.cpp(5.75 KB)
📄 AddDiscriminators.cpp(10.78 KB)
📄 AssumeBundleBuilder.cpp(21.46 KB)
📄 BasicBlockUtils.cpp(51.81 KB)
📄 BreakCriticalEdges.cpp(19.03 KB)
📄 BuildLibCalls.cpp(43.9 KB)
📄 BypassSlowDivision.cpp(17.95 KB)
📄 CallGraphUpdater.cpp(5.76 KB)
📄 CallPromotionUtils.cpp(22.18 KB)
📄 CanonicalizeAliases.cpp(3.18 KB)
📄 CanonicalizeFreezeInLoops.cpp(7.93 KB)
📄 CloneFunction.cpp(34.49 KB)
📄 CloneModule.cpp(7.93 KB)
📄 CodeExtractor.cpp(65.69 KB)
📄 CodeMoverUtils.cpp(15.82 KB)
📄 CtorUtils.cpp(5.1 KB)
📄 Debugify.cpp(17.78 KB)
📄 DemoteRegToStack.cpp(6.1 KB)
📄 EntryExitInstrumenter.cpp(5.83 KB)
📄 EscapeEnumerator.cpp(2.96 KB)
📄 Evaluator.cpp(27.98 KB)
📄 FixIrreducible.cpp(12.68 KB)
📄 FlattenCFG.cpp(16.99 KB)
📄 FunctionComparator.cpp(34.36 KB)
📄 FunctionImportUtils.cpp(13.8 KB)
📄 GlobalStatus.cpp(7.23 KB)
📄 GuardUtils.cpp(4.76 KB)
📄 ImportedFunctionsInliningStatistics.cpp(7.67 KB)
📄 InjectTLIMappings.cpp(6.62 KB)
📄 InlineFunction.cpp(103.28 KB)
📄 InstructionNamer.cpp(1.98 KB)
📄 IntegerDivision.cpp(26.17 KB)
📄 LCSSA.cpp(18.72 KB)
📄 LibCallsShrinkWrap.cpp(18.68 KB)
📄 Local.cpp(114.96 KB)
📄 LoopRotationUtils.cpp(29.47 KB)
📄 LoopSimplify.cpp(36.13 KB)
📄 LoopUnroll.cpp(38.07 KB)
📄 LoopUnrollAndJam.cpp(37.71 KB)
📄 LoopUnrollPeel.cpp(31.88 KB)
📄 LoopUnrollRuntime.cpp(40.17 KB)
📄 LoopUtils.cpp(65.03 KB)
📄 LoopVersioning.cpp(12.42 KB)
📄 LowerInvoke.cpp(3.3 KB)
📄 LowerMemIntrinsics.cpp(20.41 KB)
📄 LowerSwitch.cpp(23.46 KB)
📄 Mem2Reg.cpp(3.71 KB)
📄 MetaRenamer.cpp(5.29 KB)
📄 MisExpect.cpp(6.97 KB)
📄 ModuleUtils.cpp(10.99 KB)
📄 NameAnonGlobals.cpp(3.33 KB)
📄 PredicateInfo.cpp(36.79 KB)
📄 PromoteMemoryToRegister.cpp(37.26 KB)
📄 SSAUpdater.cpp(16.72 KB)
📄 SSAUpdaterBulk.cpp(7.46 KB)
📄 SanitizerStats.cpp(4.08 KB)
📄 ScalarEvolutionExpander.cpp(101.25 KB)
📄 SimplifyCFG.cpp(238.13 KB)
📄 SimplifyIndVar.cpp(34.53 KB)
📄 SimplifyLibCalls.cpp(122.25 KB)
📄 SizeOpts.cpp(5.08 KB)
📄 SplitModule.cpp(9.67 KB)
📄 StripGCRelocates.cpp(2.86 KB)
📄 StripNonLineTableDebugInfo.cpp(1.4 KB)
📄 SymbolRewriter.cpp(18.82 KB)
📄 UnifyFunctionExitNodes.cpp(4.42 KB)
📄 UnifyLoopExits.cpp(8.16 KB)
📄 UniqueInternalLinkageNames.cpp(2.91 KB)
📄 Utils.cpp(2.53 KB)
📄 VNCoercion.cpp(25.89 KB)
📄 ValueMapper.cpp(38.06 KB)

Editing: NameAnonGlobals.cpp

//===- NameAnonGlobals.cpp - ThinLTO Support: Name Unnamed Globals --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements naming anonymous globals to make sure they can be
// referred to by ThinLTO.
//
//===----------------------------------------------------------------------===//

#include "llvm/Transforms/Utils/NameAnonGlobals.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/MD5.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"

using namespace llvm;

namespace {
// Compute a "unique" hash for the module based on the name of the public
// globals.
class ModuleHasher {
  Module &TheModule;
  std::string TheHash;

public:
  ModuleHasher(Module &M) : TheModule(M) {}

/// Return the lazily computed hash.
  std::string &get() {
    if (!TheHash.empty())
      // Cache hit :)
      return TheHash;

MD5 Hasher;
    for (auto &F : TheModule) {
      if (F.isDeclaration() || F.hasLocalLinkage() || !F.hasName())
        continue;
      auto Name = F.getName();
      Hasher.update(Name);
    }
    for (auto &GV : TheModule.globals()) {
      if (GV.isDeclaration() || GV.hasLocalLinkage() || !GV.hasName())
        continue;
      auto Name = GV.getName();
      Hasher.update(Name);
    }

// Now return the result.
    MD5::MD5Result Hash;
    Hasher.final(Hash);
    SmallString<32> Result;
    MD5::stringifyResult(Hash, Result);
    TheHash = std::string(Result.str());
    return TheHash;
  }
};
} // end anonymous namespace

// Rename all the anon globals in the module
bool llvm::nameUnamedGlobals(Module &M) {
  bool Changed = false;
  ModuleHasher ModuleHash(M);
  int count = 0;
  auto RenameIfNeed = [&](GlobalValue &GV) {
    if (GV.hasName())
      return;
    GV.setName(Twine("anon.") + ModuleHash.get() + "." + Twine(count++));
    Changed = true;
  };
  for (auto &GO : M.global_objects())
    RenameIfNeed(GO);
  for (auto &GA : M.aliases())
    RenameIfNeed(GA);

return Changed;
}

namespace {

// Legacy pass that provides a name to every anon globals.
class NameAnonGlobalLegacyPass : public ModulePass {

public:
  /// Pass identification, replacement for typeid
  static char ID;

/// Specify pass name for debug output
  StringRef getPassName() const override { return "Name Anon Globals"; }

explicit NameAnonGlobalLegacyPass() : ModulePass(ID) {}

bool runOnModule(Module &M) override { return nameUnamedGlobals(M); }
};
char NameAnonGlobalLegacyPass::ID = 0;

} // anonymous namespace

PreservedAnalyses NameAnonGlobalPass::run(Module &M,
                                          ModuleAnalysisManager &AM) {
  if (!nameUnamedGlobals(M))
    return PreservedAnalyses::all();

return PreservedAnalyses::none();
}

INITIALIZE_PASS_BEGIN(NameAnonGlobalLegacyPass, "name-anon-globals",
                      "Provide a name to nameless globals", false, false)
INITIALIZE_PASS_END(NameAnonGlobalLegacyPass, "name-anon-globals",
                    "Provide a name to nameless globals", false, false)

namespace llvm {
ModulePass *createNameAnonGlobalPass() {
  return new NameAnonGlobalLegacyPass();
}
}

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Editing: NameAnonGlobals.cpp

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