コード例 #1
0
ファイル: MCELFStreamer.cpp プロジェクト: marcodiiga/llvm
void MCELFStreamer::EmitBundleUnlock() {
  MCSectionData *SD = getCurrentSectionData();

  // Sanity checks
  if (!getAssembler().isBundlingEnabled())
    report_fatal_error(".bundle_unlock forbidden when bundling is disabled");
  else if (!SD->isBundleLocked())
    report_fatal_error(".bundle_unlock without matching lock");
  else if (SD->isBundleGroupBeforeFirstInst())
    report_fatal_error("Empty bundle-locked group is forbidden");

  // When the -mc-relax-all flag is used, we emit instructions to fragments
  // stored on a stack. When the bundle unlock is emited, we pop a fragment 
  // from the stack a merge it to the one below.
  if (getAssembler().getRelaxAll()) {
    assert(!BundleGroups.empty() && "There are no bundle groups");
    MCDataFragment *DF = BundleGroups.back();

    // FIXME: Use BundleGroups to track the lock state instead.
    SD->setBundleLockState(MCSectionData::NotBundleLocked);

    // FIXME: Use more separate fragments for nested groups. 
    if (!SD->isBundleLocked()) {
      mergeFragment(getOrCreateDataFragment(), DF);
      BundleGroups.pop_back();
      delete DF;
    }

    if (SD->getBundleLockState() != MCSectionData::BundleLockedAlignToEnd)
      getOrCreateDataFragment()->setAlignToBundleEnd(false);
  } else
    SD->setBundleLockState(MCSectionData::NotBundleLocked);
}
コード例 #2
0
void MCELFStreamer::EmitBundleUnlock() {
  MCSectionData *SD = getCurrentSectionData();

  // Sanity checks
  if (!getAssembler().isBundlingEnabled())
    report_fatal_error(".bundle_unlock forbidden when bundling is disabled");
  else if (!SD->isBundleLocked())
    report_fatal_error(".bundle_unlock without matching lock");
  else if (SD->isBundleGroupBeforeFirstInst())
    report_fatal_error("Empty bundle-locked group is forbidden");

  SD->setBundleLockState(MCSectionData::NotBundleLocked);
}
コード例 #3
0
void MCELFStreamer::EmitBundleLock(bool AlignToEnd) {
  MCSectionData *SD = getCurrentSectionData();

  // Sanity checks
  //
  if (!getAssembler().isBundlingEnabled())
    report_fatal_error(".bundle_lock forbidden when bundling is disabled");

  if (!SD->isBundleLocked())
    SD->setBundleGroupBeforeFirstInst(true);

  SD->setBundleLockState(AlignToEnd ? MCSectionData::BundleLockedAlignToEnd :
                                      MCSectionData::BundleLocked);
}
コード例 #4
0
ファイル: MCELFStreamer.cpp プロジェクト: marcodiiga/llvm
void MCELFStreamer::EmitBundleLock(bool AlignToEnd) {
  MCSectionData *SD = getCurrentSectionData();

  // Sanity checks
  //
  if (!getAssembler().isBundlingEnabled())
    report_fatal_error(".bundle_lock forbidden when bundling is disabled");

  if (!SD->isBundleLocked())
    SD->setBundleGroupBeforeFirstInst(true);

  if (getAssembler().getRelaxAll() && !SD->isBundleLocked()) {
    // TODO: drop the lock state and set directly in the fragment
    MCDataFragment *DF = new MCDataFragment();
    BundleGroups.push_back(DF);
  }

  SD->setBundleLockState(AlignToEnd ? MCSectionData::BundleLockedAlignToEnd :
                                      MCSectionData::BundleLocked);
}