1 files changed, 0 insertions, 172 deletions
diff --git a/contrib/llvm/lib/CodeGen/GCMetadata.cpp b/contrib/llvm/lib/CodeGen/GCMetadata.cpp
deleted file mode 100644
index 9c53550eaa9d..000000000000
--- a/contrib/llvm/lib/CodeGen/GCMetadata.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-//===-- GCMetadata.cpp - Garbage collector metadata -----------------------===//
-//
-// 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 the GCFunctionInfo class and GCModuleInfo pass.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/CodeGen/GCMetadata.h"
-#include "llvm/CodeGen/GCStrategy.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/IR/Function.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <cassert>
-#include <memory>
-#include <string>
-
-using namespace llvm;
-
-namespace {
-
-class Printer : public FunctionPass {
-  static char ID;
-
-  raw_ostream &OS;
-
-public:
-  explicit Printer(raw_ostream &OS) : FunctionPass(ID), OS(OS) {}
-
-  StringRef getPassName() const override;
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-
-  bool runOnFunction(Function &F) override;
-  bool doFinalization(Module &M) override;
-};
-
-} // end anonymous namespace
-
-INITIALIZE_PASS(GCModuleInfo, "collector-metadata",
-                "Create Garbage Collector Module Metadata", false, false)
-
-// -----------------------------------------------------------------------------
-
-GCFunctionInfo::GCFunctionInfo(const Function &F, GCStrategy &S)
-    : F(F), S(S), FrameSize(~0LL) {}
-
-GCFunctionInfo::~GCFunctionInfo() = default;
-
-// -----------------------------------------------------------------------------
-
-char GCModuleInfo::ID = 0;
-
-GCModuleInfo::GCModuleInfo() : ImmutablePass(ID) {
-  initializeGCModuleInfoPass(*PassRegistry::getPassRegistry());
-}
-
-GCFunctionInfo &GCModuleInfo::getFunctionInfo(const Function &F) {
-  assert(!F.isDeclaration() && "Can only get GCFunctionInfo for a definition!");
-  assert(F.hasGC());
-
-  finfo_map_type::iterator I = FInfoMap.find(&F);
-  if (I != FInfoMap.end())
-    return *I->second;
-
-  GCStrategy *S = getGCStrategy(F.getGC());
-  Functions.push_back(llvm::make_unique<GCFunctionInfo>(F, *S));
-  GCFunctionInfo *GFI = Functions.back().get();
-  FInfoMap[&F] = GFI;
-  return *GFI;
-}
-
-void GCModuleInfo::clear() {
-  Functions.clear();
-  FInfoMap.clear();
-  GCStrategyList.clear();
-}
-
-// -----------------------------------------------------------------------------
-
-char Printer::ID = 0;
-
-FunctionPass *llvm::createGCInfoPrinter(raw_ostream &OS) {
-  return new Printer(OS);
-}
-
-StringRef Printer::getPassName() const {
-  return "Print Garbage Collector Information";
-}
-
-void Printer::getAnalysisUsage(AnalysisUsage &AU) const {
-  FunctionPass::getAnalysisUsage(AU);
-  AU.setPreservesAll();
-  AU.addRequired<GCModuleInfo>();
-}
-
-bool Printer::runOnFunction(Function &F) {
-  if (F.hasGC())
-    return false;
-
-  GCFunctionInfo *FD = &getAnalysis<GCModuleInfo>().getFunctionInfo(F);
-
-  OS << "GC roots for " << FD->getFunction().getName() << ":\n";
-  for (GCFunctionInfo::roots_iterator RI = FD->roots_begin(),
-                                      RE = FD->roots_end();
-       RI != RE; ++RI)
-    OS << "\t" << RI->Num << "\t" << RI->StackOffset << "[sp]\n";
-
-  OS << "GC safe points for " << FD->getFunction().getName() << ":\n";
-  for (GCFunctionInfo::iterator PI = FD->begin(), PE = FD->end(); PI != PE;
-       ++PI) {
-
-    OS << "\t" << PI->Label->getName() << ": " << "post-call"
-       << ", live = {";
-
-    for (GCFunctionInfo::live_iterator RI = FD->live_begin(PI),
-                                       RE = FD->live_end(PI);
-         ;) {
-      OS << " " << RI->Num;
-      if (++RI == RE)
-        break;
-      OS << ",";
-    }
-
-    OS << " }\n";
-  }
-
-  return false;
-}
-
-bool Printer::doFinalization(Module &M) {
-  GCModuleInfo *GMI = getAnalysisIfAvailable<GCModuleInfo>();
-  assert(GMI && "Printer didn't require GCModuleInfo?!");
-  GMI->clear();
-  return false;
-}
-
-GCStrategy *GCModuleInfo::getGCStrategy(const StringRef Name) {
-  // TODO: Arguably, just doing a linear search would be faster for small N
-  auto NMI = GCStrategyMap.find(Name);
-  if (NMI != GCStrategyMap.end())
-    return NMI->getValue();
-
-  for (auto& Entry : GCRegistry::entries()) {
-    if (Name == Entry.getName()) {
-      std::unique_ptr<GCStrategy> S = Entry.instantiate();
-      S->Name = Name;
-      GCStrategyMap[Name] = S.get();
-      GCStrategyList.push_back(std::move(S));
-      return GCStrategyList.back().get();
-    }
-  }
-
-  if (GCRegistry::begin() == GCRegistry::end()) {
-    // In normal operation, the registry should not be empty.  There should
-    // be the builtin GCs if nothing else.  The most likely scenario here is
-    // that we got here without running the initializers used by the Registry
-    // itself and it's registration mechanism.
-    const std::string error = ("unsupported GC: " + Name).str() +
-      " (did you remember to link and initialize the CodeGen library?)";
-    report_fatal_error(error);
-  } else
-    report_fatal_error(std::string("unsupported GC: ") + Name);
-}